annotate Modules/selectmodule.c @ 81343:3a7cd8efc19f

#16852: merge with 3.3.
author Ezio Melotti <ezio.melotti@gmail.com>
date Thu, 10 Jan 2013 03:29:45 +0200
parents be8e6b81284e
children 30eb98c8afef
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1 /* select - Module containing unix select(2) call.
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2 Under Unix, the file descriptors are small integers.
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3 Under Win32, select only exists for sockets, and sockets may
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4 have any value except INVALID_SOCKET.
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5 */
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6
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7 #include "Python.h"
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8 #include <structmember.h>
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9
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10 #ifdef HAVE_SYS_DEVPOLL_H
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11 #include <sys/resource.h>
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12 #include <sys/devpoll.h>
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13 #include <sys/types.h>
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14 #include <sys/stat.h>
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15 #include <fcntl.h>
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16 #endif
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17
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18 #ifdef __APPLE__
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19 /* Perform runtime testing for a broken poll on OSX to make it easier
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20 * to use the same binary on multiple releases of the OS.
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21 */
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22 #undef HAVE_BROKEN_POLL
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23 #endif
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24
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25 /* Windows #defines FD_SETSIZE to 64 if FD_SETSIZE isn't already defined.
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26 64 is too small (too many people have bumped into that limit).
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27 Here we boost it.
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28 Users who want even more than the boosted limit should #define
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29 FD_SETSIZE higher before this; e.g., via compiler /D switch.
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30 */
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31 #if defined(MS_WINDOWS) && !defined(FD_SETSIZE)
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32 #define FD_SETSIZE 512
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33 #endif
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34
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35 #if defined(HAVE_POLL_H)
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36 #include <poll.h>
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37 #elif defined(HAVE_SYS_POLL_H)
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38 #include <sys/poll.h>
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39 #endif
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40
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41 #ifdef __sgi
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42 /* This is missing from unistd.h */
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43 extern void bzero(void *, int);
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44 #endif
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45
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46 #ifdef HAVE_SYS_TYPES_H
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47 #include <sys/types.h>
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48 #endif
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49
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50 #ifdef MS_WINDOWS
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51 # define WIN32_LEAN_AND_MEAN
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52 # include <winsock.h>
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53 #else
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54 # define SOCKET int
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55 # if defined(__VMS)
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56 # include <socket.h>
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57 # endif
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58 #endif
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59
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60 /* list of Python objects and their file descriptor */
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61 typedef struct {
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62 PyObject *obj; /* owned reference */
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63 SOCKET fd;
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64 int sentinel; /* -1 == sentinel */
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65 } pylist;
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66
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67 static void
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68 reap_obj(pylist fd2obj[FD_SETSIZE + 1])
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69 {
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70 int i;
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71 for (i = 0; i < FD_SETSIZE + 1 && fd2obj[i].sentinel >= 0; i++) {
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72 Py_XDECREF(fd2obj[i].obj);
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73 fd2obj[i].obj = NULL;
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74 }
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75 fd2obj[0].sentinel = -1;
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76 }
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77
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78
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79 /* returns -1 and sets the Python exception if an error occurred, otherwise
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80 returns a number >= 0
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81 */
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82 static int
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83 seq2set(PyObject *seq, fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
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84 {
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85 int max = -1;
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86 int index = 0;
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87 Py_ssize_t i;
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88 PyObject* fast_seq = NULL;
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89 PyObject* o = NULL;
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90
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91 fd2obj[0].obj = (PyObject*)0; /* set list to zero size */
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92 FD_ZERO(set);
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93
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94 fast_seq = PySequence_Fast(seq, "arguments 1-3 must be sequences");
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95 if (!fast_seq)
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96 return -1;
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97
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98 for (i = 0; i < PySequence_Fast_GET_SIZE(fast_seq); i++) {
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99 SOCKET v;
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100
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101 /* any intervening fileno() calls could decr this refcnt */
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102 if (!(o = PySequence_Fast_GET_ITEM(fast_seq, i)))
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103 goto finally;
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104
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105 Py_INCREF(o);
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106 v = PyObject_AsFileDescriptor( o );
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107 if (v == -1) goto finally;
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108
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109 #if defined(_MSC_VER)
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110 max = 0; /* not used for Win32 */
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111 #else /* !_MSC_VER */
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112 if (!_PyIsSelectable_fd(v)) {
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113 PyErr_SetString(PyExc_ValueError,
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114 "filedescriptor out of range in select()");
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115 goto finally;
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116 }
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117 if (v > max)
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118 max = v;
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119 #endif /* _MSC_VER */
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120 FD_SET(v, set);
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121
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122 /* add object and its file descriptor to the list */
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123 if (index >= FD_SETSIZE) {
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124 PyErr_SetString(PyExc_ValueError,
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125 "too many file descriptors in select()");
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126 goto finally;
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127 }
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128 fd2obj[index].obj = o;
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129 fd2obj[index].fd = v;
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130 fd2obj[index].sentinel = 0;
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131 fd2obj[++index].sentinel = -1;
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132 }
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133 Py_DECREF(fast_seq);
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134 return max+1;
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135
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136 finally:
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137 Py_XDECREF(o);
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138 Py_DECREF(fast_seq);
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139 return -1;
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140 }
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141
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142 /* returns NULL and sets the Python exception if an error occurred */
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143 static PyObject *
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144 set2list(fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
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145 {
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146 int i, j, count=0;
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147 PyObject *list, *o;
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148 SOCKET fd;
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149
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150 for (j = 0; fd2obj[j].sentinel >= 0; j++) {
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151 if (FD_ISSET(fd2obj[j].fd, set))
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152 count++;
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153 }
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154 list = PyList_New(count);
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155 if (!list)
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156 return NULL;
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157
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158 i = 0;
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159 for (j = 0; fd2obj[j].sentinel >= 0; j++) {
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160 fd = fd2obj[j].fd;
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161 if (FD_ISSET(fd, set)) {
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162 o = fd2obj[j].obj;
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163 fd2obj[j].obj = NULL;
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164 /* transfer ownership */
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165 if (PyList_SetItem(list, i, o) < 0)
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166 goto finally;
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167
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168 i++;
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169 }
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170 }
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171 return list;
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172 finally:
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173 Py_DECREF(list);
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174 return NULL;
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175 }
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176
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177 #undef SELECT_USES_HEAP
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178 #if FD_SETSIZE > 1024
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179 #define SELECT_USES_HEAP
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180 #endif /* FD_SETSIZE > 1024 */
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181
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182 static PyObject *
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183 select_select(PyObject *self, PyObject *args)
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184 {
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185 #ifdef SELECT_USES_HEAP
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186 pylist *rfd2obj, *wfd2obj, *efd2obj;
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187 #else /* !SELECT_USES_HEAP */
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188 /* XXX: All this should probably be implemented as follows:
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189 * - find the highest descriptor we're interested in
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190 * - add one
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191 * - that's the size
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192 * See: Stevens, APitUE, $12.5.1
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193 */
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194 pylist rfd2obj[FD_SETSIZE + 1];
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195 pylist wfd2obj[FD_SETSIZE + 1];
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196 pylist efd2obj[FD_SETSIZE + 1];
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197 #endif /* SELECT_USES_HEAP */
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198 PyObject *ifdlist, *ofdlist, *efdlist;
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199 PyObject *ret = NULL;
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200 PyObject *tout = Py_None;
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201 fd_set ifdset, ofdset, efdset;
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202 struct timeval tv, *tvp;
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203 int imax, omax, emax, max;
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204 int n;
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205
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206 /* convert arguments */
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207 if (!PyArg_UnpackTuple(args, "select", 3, 4,
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208 &ifdlist, &ofdlist, &efdlist, &tout))
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209 return NULL;
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210
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211 if (tout == Py_None)
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212 tvp = (struct timeval *)0;
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213 else if (!PyNumber_Check(tout)) {
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214 PyErr_SetString(PyExc_TypeError,
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215 "timeout must be a float or None");
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216 return NULL;
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217 }
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218 else {
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219 #ifdef MS_WINDOWS
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220 time_t sec;
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221 if (_PyTime_ObjectToTimeval(tout, &sec, &tv.tv_usec) == -1)
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222 return NULL;
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223 assert(sizeof(tv.tv_sec) == sizeof(long));
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224 #if SIZEOF_TIME_T > SIZEOF_LONG
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225 if (sec > LONG_MAX) {
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226 PyErr_SetString(PyExc_OverflowError,
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227 "timeout is too large");
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228 return NULL;
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229 }
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230 #endif
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231 tv.tv_sec = (long)sec;
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232 #else
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233 /* 64-bit OS X has struct timeval.tv_usec as an int (and thus still 4
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234 bytes as required), but no longer defined by a long. */
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235 long tv_usec;
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236 if (_PyTime_ObjectToTimeval(tout, &tv.tv_sec, &tv_usec) == -1)
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237 return NULL;
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238 tv.tv_usec = tv_usec;
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239 #endif
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240 if (tv.tv_sec < 0) {
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241 PyErr_SetString(PyExc_ValueError, "timeout must be non-negative");
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242 return NULL;
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243 }
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244 tvp = &tv;
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245 }
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246
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247
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248 #ifdef SELECT_USES_HEAP
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249 /* Allocate memory for the lists */
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250 rfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
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251 wfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
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252 efd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
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253 if (rfd2obj == NULL || wfd2obj == NULL || efd2obj == NULL) {
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254 if (rfd2obj) PyMem_DEL(rfd2obj);
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255 if (wfd2obj) PyMem_DEL(wfd2obj);
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256 if (efd2obj) PyMem_DEL(efd2obj);
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257 return PyErr_NoMemory();
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258 }
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259 #endif /* SELECT_USES_HEAP */
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260 /* Convert sequences to fd_sets, and get maximum fd number
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261 * propagates the Python exception set in seq2set()
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262 */
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263 rfd2obj[0].sentinel = -1;
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264 wfd2obj[0].sentinel = -1;
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265 efd2obj[0].sentinel = -1;
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266 if ((imax=seq2set(ifdlist, &ifdset, rfd2obj)) < 0)
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267 goto finally;
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268 if ((omax=seq2set(ofdlist, &ofdset, wfd2obj)) < 0)
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269 goto finally;
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270 if ((emax=seq2set(efdlist, &efdset, efd2obj)) < 0)
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271 goto finally;
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272 max = imax;
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273 if (omax > max) max = omax;
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274 if (emax > max) max = emax;
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275
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276 Py_BEGIN_ALLOW_THREADS
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277 n = select(max, &ifdset, &ofdset, &efdset, tvp);
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278 Py_END_ALLOW_THREADS
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279
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280 #ifdef MS_WINDOWS
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281 if (n == SOCKET_ERROR) {
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282 PyErr_SetExcFromWindowsErr(PyExc_OSError, WSAGetLastError());
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283 }
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284 #else
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285 if (n < 0) {
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286 PyErr_SetFromErrno(PyExc_OSError);
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287 }
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288 #endif
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289 else {
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290 /* any of these three calls can raise an exception. it's more
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291 convenient to test for this after all three calls... but
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292 is that acceptable?
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293 */
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294 ifdlist = set2list(&ifdset, rfd2obj);
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295 ofdlist = set2list(&ofdset, wfd2obj);
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296 efdlist = set2list(&efdset, efd2obj);
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297 if (PyErr_Occurred())
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298 ret = NULL;
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299 else
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300 ret = PyTuple_Pack(3, ifdlist, ofdlist, efdlist);
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301
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302 Py_DECREF(ifdlist);
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303 Py_DECREF(ofdlist);
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304 Py_DECREF(efdlist);
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305 }
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306
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307 finally:
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308 reap_obj(rfd2obj);
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309 reap_obj(wfd2obj);
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310 reap_obj(efd2obj);
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311 #ifdef SELECT_USES_HEAP
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312 PyMem_DEL(rfd2obj);
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313 PyMem_DEL(wfd2obj);
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314 PyMem_DEL(efd2obj);
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315 #endif /* SELECT_USES_HEAP */
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316 return ret;
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317 }
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318
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319 #if defined(HAVE_POLL) && !defined(HAVE_BROKEN_POLL)
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320 /*
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321 * poll() support
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322 */
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323
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324 typedef struct {
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325 PyObject_HEAD
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326 PyObject *dict;
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327 int ufd_uptodate;
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328 int ufd_len;
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329 struct pollfd *ufds;
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330 } pollObject;
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331
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332 static PyTypeObject poll_Type;
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333
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334 /* Update the malloc'ed array of pollfds to match the dictionary
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335 contained within a pollObject. Return 1 on success, 0 on an error.
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336 */
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337
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338 static int
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339 update_ufd_array(pollObject *self)
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340 {
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341 Py_ssize_t i, pos;
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342 PyObject *key, *value;
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343 struct pollfd *old_ufds = self->ufds;
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344
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345 self->ufd_len = PyDict_Size(self->dict);
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346 PyMem_RESIZE(self->ufds, struct pollfd, self->ufd_len);
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347 if (self->ufds == NULL) {
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348 self->ufds = old_ufds;
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349 PyErr_NoMemory();
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350 return 0;
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351 }
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352
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353 i = pos = 0;
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354 while (PyDict_Next(self->dict, &pos, &key, &value)) {
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355 self->ufds[i].fd = PyLong_AsLong(key);
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356 self->ufds[i].events = (short)PyLong_AsLong(value);
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357 i++;
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358 }
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359 self->ufd_uptodate = 1;
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360 return 1;
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361 }
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362
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363 PyDoc_STRVAR(poll_register_doc,
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364 "register(fd [, eventmask] ) -> None\n\n\
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365 Register a file descriptor with the polling object.\n\
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366 fd -- either an integer, or an object with a fileno() method returning an\n\
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367 int.\n\
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368 events -- an optional bitmask describing the type of events to check for");
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369
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370 static PyObject *
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371 poll_register(pollObject *self, PyObject *args)
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372 {
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373 PyObject *o, *key, *value;
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374 int fd, events = POLLIN | POLLPRI | POLLOUT;
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375 int err;
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376
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377 if (!PyArg_ParseTuple(args, "O|i:register", &o, &events)) {
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378 return NULL;
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379 }
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380
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381 fd = PyObject_AsFileDescriptor(o);
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382 if (fd == -1) return NULL;
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383
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384 /* Add entry to the internal dictionary: the key is the
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385 file descriptor, and the value is the event mask. */
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386 key = PyLong_FromLong(fd);
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387 if (key == NULL)
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388 return NULL;
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389 value = PyLong_FromLong(events);
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390 if (value == NULL) {
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391 Py_DECREF(key);
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392 return NULL;
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393 }
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394 err = PyDict_SetItem(self->dict, key, value);
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395 Py_DECREF(key);
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396 Py_DECREF(value);
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397 if (err < 0)
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398 return NULL;
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399
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400 self->ufd_uptodate = 0;
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401
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402 Py_INCREF(Py_None);
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403 return Py_None;
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404 }
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405
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406 PyDoc_STRVAR(poll_modify_doc,
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407 "modify(fd, eventmask) -> None\n\n\
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408 Modify an already registered file descriptor.\n\
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409 fd -- either an integer, or an object with a fileno() method returning an\n\
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410 int.\n\
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411 events -- an optional bitmask describing the type of events to check for");
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412
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413 static PyObject *
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414 poll_modify(pollObject *self, PyObject *args)
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415 {
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416 PyObject *o, *key, *value;
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417 int fd, events;
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418 int err;
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419
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420 if (!PyArg_ParseTuple(args, "Oi:modify", &o, &events)) {
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421 return NULL;
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422 }
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423
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424 fd = PyObject_AsFileDescriptor(o);
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425 if (fd == -1) return NULL;
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426
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427 /* Modify registered fd */
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428 key = PyLong_FromLong(fd);
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429 if (key == NULL)
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430 return NULL;
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431 if (PyDict_GetItem(self->dict, key) == NULL) {
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432 errno = ENOENT;
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433 PyErr_SetFromErrno(PyExc_OSError);
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434 Py_DECREF(key);
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435 return NULL;
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436 }
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437 value = PyLong_FromLong(events);
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438 if (value == NULL) {
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439 Py_DECREF(key);
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440 return NULL;
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441 }
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442 err = PyDict_SetItem(self->dict, key, value);
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443 Py_DECREF(key);
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444 Py_DECREF(value);
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445 if (err < 0)
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446 return NULL;
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447
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448 self->ufd_uptodate = 0;
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449
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450 Py_INCREF(Py_None);
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451 return Py_None;
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452 }
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453
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454
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455 PyDoc_STRVAR(poll_unregister_doc,
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456 "unregister(fd) -> None\n\n\
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457 Remove a file descriptor being tracked by the polling object.");
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458
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459 static PyObject *
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460 poll_unregister(pollObject *self, PyObject *o)
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461 {
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462 PyObject *key;
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463 int fd;
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464
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465 fd = PyObject_AsFileDescriptor( o );
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466 if (fd == -1)
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467 return NULL;
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468
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469 /* Check whether the fd is already in the array */
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470 key = PyLong_FromLong(fd);
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471 if (key == NULL)
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472 return NULL;
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473
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474 if (PyDict_DelItem(self->dict, key) == -1) {
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475 Py_DECREF(key);
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476 /* This will simply raise the KeyError set by PyDict_DelItem
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477 if the file descriptor isn't registered. */
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478 return NULL;
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479 }
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480
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481 Py_DECREF(key);
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482 self->ufd_uptodate = 0;
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483
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484 Py_INCREF(Py_None);
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485 return Py_None;
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486 }
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487
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488 PyDoc_STRVAR(poll_poll_doc,
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489 "poll( [timeout] ) -> list of (fd, event) 2-tuples\n\n\
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490 Polls the set of registered file descriptors, returning a list containing \n\
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491 any descriptors that have events or errors to report.");
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492
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493 static PyObject *
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494 poll_poll(pollObject *self, PyObject *args)
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495 {
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496 PyObject *result_list = NULL, *tout = NULL;
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497 int timeout = 0, poll_result, i, j;
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498 PyObject *value = NULL, *num = NULL;
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499
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500 if (!PyArg_UnpackTuple(args, "poll", 0, 1, &tout)) {
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501 return NULL;
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502 }
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503
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504 /* Check values for timeout */
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505 if (tout == NULL || tout == Py_None)
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506 timeout = -1;
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507 else if (!PyNumber_Check(tout)) {
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508 PyErr_SetString(PyExc_TypeError,
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509 "timeout must be an integer or None");
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diff changeset
510 return NULL;
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diff changeset
511 }
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512 else {
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diff changeset
513 tout = PyNumber_Long(tout);
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514 if (!tout)
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diff changeset
515 return NULL;
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diff changeset
516 timeout = PyLong_AsLong(tout);
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diff changeset
517 Py_DECREF(tout);
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diff changeset
518 if (timeout == -1 && PyErr_Occurred())
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diff changeset
519 return NULL;
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520 }
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35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
521
61467
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522 /* Ensure the ufd array is up to date */
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diff changeset
523 if (!self->ufd_uptodate)
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diff changeset
524 if (update_ufd_array(self) == 0)
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diff changeset
525 return NULL;
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diff changeset
526
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diff changeset
527 /* call poll() */
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
528 Py_BEGIN_ALLOW_THREADS
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529 poll_result = poll(self->ufds, self->ufd_len, timeout);
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530 Py_END_ALLOW_THREADS
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531
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532 if (poll_result < 0) {
72879
41a1de81ef2b PEP 3151 / issue #12555: reworking the OS and IO exception hierarchy.
Antoine Pitrou <solipsis@pitrou.net>
parents: 72116
diff changeset
533 PyErr_SetFromErrno(PyExc_OSError);
61467
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534 return NULL;
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535 }
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35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
536
61467
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537 /* build the result list */
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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parents: 13761
diff changeset
538
61467
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539 result_list = PyList_New(poll_result);
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diff changeset
540 if (!result_list)
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541 return NULL;
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diff changeset
542 else {
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parents: 60425
diff changeset
543 for (i = 0, j = 0; j < poll_result; j++) {
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parents: 60425
diff changeset
544 /* skip to the next fired descriptor */
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parents: 60425
diff changeset
545 while (!self->ufds[i].revents) {
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546 i++;
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diff changeset
547 }
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548 /* if we hit a NULL return, set value to NULL
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549 and break out of loop; code at end will
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diff changeset
550 clean up result_list */
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551 value = PyTuple_New(2);
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552 if (value == NULL)
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553 goto error;
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diff changeset
554 num = PyLong_FromLong(self->ufds[i].fd);
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555 if (num == NULL) {
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556 Py_DECREF(value);
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diff changeset
557 goto error;
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558 }
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559 PyTuple_SET_ITEM(value, 0, num);
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diff changeset
560
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561 /* The &0xffff is a workaround for AIX. 'revents'
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562 is a 16-bit short, and IBM assigned POLLNVAL
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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563 to be 0x8000, so the conversion to int results
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
564 in a negative number. See SF bug #923315. */
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diff changeset
565 num = PyLong_FromLong(self->ufds[i].revents & 0xffff);
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diff changeset
566 if (num == NULL) {
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diff changeset
567 Py_DECREF(value);
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diff changeset
568 goto error;
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diff changeset
569 }
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diff changeset
570 PyTuple_SET_ITEM(value, 1, num);
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571 if ((PyList_SetItem(result_list, j, value)) == -1) {
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572 Py_DECREF(value);
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573 goto error;
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574 }
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575 i++;
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576 }
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diff changeset
577 }
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diff changeset
578 return result_list;
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35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
579
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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parents: 13761
diff changeset
580 error:
61467
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581 Py_DECREF(result_list);
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582 return NULL;
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
583 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
584
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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diff changeset
585 static PyMethodDef poll_methods[] = {
61467
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586 {"register", (PyCFunction)poll_register,
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diff changeset
587 METH_VARARGS, poll_register_doc},
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588 {"modify", (PyCFunction)poll_modify,
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589 METH_VARARGS, poll_modify_doc},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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590 {"unregister", (PyCFunction)poll_unregister,
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diff changeset
591 METH_O, poll_unregister_doc},
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diff changeset
592 {"poll", (PyCFunction)poll_poll,
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diff changeset
593 METH_VARARGS, poll_poll_doc},
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diff changeset
594 {NULL, NULL} /* sentinel */
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
595 };
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
596
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
597 static pollObject *
14277
984abd20eec2 Peter Schneider-Kamp <nowonder@nowonder.de>:
Fred Drake <fdrake@acm.org>
parents: 14182
diff changeset
598 newPollObject(void)
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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parents: 13761
diff changeset
599 {
61467
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diff changeset
600 pollObject *self;
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diff changeset
601 self = PyObject_New(pollObject, &poll_Type);
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diff changeset
602 if (self == NULL)
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603 return NULL;
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diff changeset
604 /* ufd_uptodate is a Boolean, denoting whether the
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diff changeset
605 array pointed to by ufds matches the contents of the dictionary. */
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606 self->ufd_uptodate = 0;
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diff changeset
607 self->ufds = NULL;
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diff changeset
608 self->dict = PyDict_New();
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diff changeset
609 if (self->dict == NULL) {
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diff changeset
610 Py_DECREF(self);
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diff changeset
611 return NULL;
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diff changeset
612 }
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diff changeset
613 return self;
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
614 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
615
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
616 static void
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
617 poll_dealloc(pollObject *self)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
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diff changeset
618 {
61467
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619 if (self->ufds != NULL)
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diff changeset
620 PyMem_DEL(self->ufds);
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621 Py_XDECREF(self->dict);
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622 PyObject_Del(self);
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
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parents: 13761
diff changeset
623 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
624
24283
c0a67a1cab09 Removed more stray instances of statichere, but left _sre.c alone.
Tim Peters <tim.peters@gmail.com>
parents: 24280
diff changeset
625 static PyTypeObject poll_Type = {
61467
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diff changeset
626 /* The ob_type field must be initialized in the module init function
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diff changeset
627 * to be portable to Windows without using C++. */
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diff changeset
628 PyVarObject_HEAD_INIT(NULL, 0)
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diff changeset
629 "select.poll", /*tp_name*/
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diff changeset
630 sizeof(pollObject), /*tp_basicsize*/
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diff changeset
631 0, /*tp_itemsize*/
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diff changeset
632 /* methods */
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diff changeset
633 (destructor)poll_dealloc, /*tp_dealloc*/
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diff changeset
634 0, /*tp_print*/
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635 0, /*tp_getattr*/
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636 0, /*tp_setattr*/
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637 0, /*tp_reserved*/
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638 0, /*tp_repr*/
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639 0, /*tp_as_number*/
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640 0, /*tp_as_sequence*/
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641 0, /*tp_as_mapping*/
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642 0, /*tp_hash*/
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643 0, /*tp_call*/
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644 0, /*tp_str*/
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645 0, /*tp_getattro*/
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646 0, /*tp_setattro*/
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647 0, /*tp_as_buffer*/
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648 Py_TPFLAGS_DEFAULT, /*tp_flags*/
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649 0, /*tp_doc*/
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650 0, /*tp_traverse*/
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651 0, /*tp_clear*/
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652 0, /*tp_richcompare*/
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653 0, /*tp_weaklistoffset*/
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654 0, /*tp_iter*/
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655 0, /*tp_iternext*/
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diff changeset
656 poll_methods, /*tp_methods*/
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
657 };
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
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658
73549
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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659 #ifdef HAVE_SYS_DEVPOLL_H
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660 typedef struct {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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661 PyObject_HEAD
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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662 int fd_devpoll;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
663 int max_n_fds;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
664 int n_fds;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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665 struct pollfd *fds;
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666 } devpollObject;
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667
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668 static PyTypeObject devpoll_Type;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
669
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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670 static int devpoll_flush(devpollObject *self)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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671 {
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672 int size, n;
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673
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674 if (!self->n_fds) return 0;
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diff changeset
675
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676 size = sizeof(struct pollfd)*self->n_fds;
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677 self->n_fds = 0;
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diff changeset
678
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diff changeset
679 Py_BEGIN_ALLOW_THREADS
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diff changeset
680 n = write(self->fd_devpoll, self->fds, size);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
681 Py_END_ALLOW_THREADS
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
682
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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parents: 72879
diff changeset
683 if (n == -1 ) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
684 PyErr_SetFromErrno(PyExc_IOError);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
685 return -1;
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diff changeset
686 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
687 if (n < size) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
688 /*
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
689 ** Data writed to /dev/poll is a binary data structure. It is not
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
690 ** clear what to do if a partial write occurred. For now, raise
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
691 ** an exception and see if we actually found this problem in
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
692 ** the wild.
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
693 ** See http://bugs.python.org/issue6397.
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
694 */
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diff changeset
695 PyErr_Format(PyExc_IOError, "failed to write all pollfds. "
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
696 "Please, report at http://bugs.python.org/. "
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
697 "Data to report: Size tried: %d, actual size written: %d.",
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
698 size, n);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
699 return -1;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
700 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
701 return 0;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
702 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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diff changeset
703
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
704 static PyObject *
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
705 internal_devpoll_register(devpollObject *self, PyObject *args, int remove)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
706 {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
707 PyObject *o;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
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diff changeset
708 int fd, events = POLLIN | POLLPRI | POLLOUT;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
709
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
710 if (!PyArg_ParseTuple(args, "O|i:register", &o, &events)) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
711 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
712 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
713
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
714 fd = PyObject_AsFileDescriptor(o);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
715 if (fd == -1) return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
716
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
717 if (remove) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
718 self->fds[self->n_fds].fd = fd;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
719 self->fds[self->n_fds].events = POLLREMOVE;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
720
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
721 if (++self->n_fds == self->max_n_fds) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
722 if (devpoll_flush(self))
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
723 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
724 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
725 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
726
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
727 self->fds[self->n_fds].fd = fd;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
728 self->fds[self->n_fds].events = events;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
729
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
730 if (++self->n_fds == self->max_n_fds) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
731 if (devpoll_flush(self))
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
732 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
733 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
734
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
735 Py_RETURN_NONE;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
736 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
737
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
738 PyDoc_STRVAR(devpoll_register_doc,
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
739 "register(fd [, eventmask] ) -> None\n\n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
740 Register a file descriptor with the polling object.\n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
741 fd -- either an integer, or an object with a fileno() method returning an\n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
742 int.\n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
743 events -- an optional bitmask describing the type of events to check for");
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
744
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
745 static PyObject *
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
746 devpoll_register(devpollObject *self, PyObject *args)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
747 {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
748 return internal_devpoll_register(self, args, 0);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
749 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
750
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
751 PyDoc_STRVAR(devpoll_modify_doc,
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
752 "modify(fd[, eventmask]) -> None\n\n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
753 Modify a possible already registered file descriptor.\n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
754 fd -- either an integer, or an object with a fileno() method returning an\n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
755 int.\n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
756 events -- an optional bitmask describing the type of events to check for");
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
757
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
758 static PyObject *
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
759 devpoll_modify(devpollObject *self, PyObject *args)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
760 {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
761 return internal_devpoll_register(self, args, 1);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
762 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
763
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
764
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
765 PyDoc_STRVAR(devpoll_unregister_doc,
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
766 "unregister(fd) -> None\n\n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
767 Remove a file descriptor being tracked by the polling object.");
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
768
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
769 static PyObject *
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
770 devpoll_unregister(devpollObject *self, PyObject *o)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
771 {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
772 int fd;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
773
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
774 fd = PyObject_AsFileDescriptor( o );
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
775 if (fd == -1)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
776 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
777
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
778 self->fds[self->n_fds].fd = fd;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
779 self->fds[self->n_fds].events = POLLREMOVE;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
780
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
781 if (++self->n_fds == self->max_n_fds) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
782 if (devpoll_flush(self))
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
783 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
784 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
785
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
786 Py_RETURN_NONE;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
787 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
788
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
789 PyDoc_STRVAR(devpoll_poll_doc,
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
790 "poll( [timeout] ) -> list of (fd, event) 2-tuples\n\n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
791 Polls the set of registered file descriptors, returning a list containing \n\
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
792 any descriptors that have events or errors to report.");
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
793
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
794 static PyObject *
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
795 devpoll_poll(devpollObject *self, PyObject *args)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
796 {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
797 struct dvpoll dvp;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
798 PyObject *result_list = NULL, *tout = NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
799 int poll_result, i;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
800 long timeout;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
801 PyObject *value, *num1, *num2;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
802
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
803 if (!PyArg_UnpackTuple(args, "poll", 0, 1, &tout)) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
804 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
805 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
806
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
807 /* Check values for timeout */
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
808 if (tout == NULL || tout == Py_None)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
809 timeout = -1;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
810 else if (!PyNumber_Check(tout)) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
811 PyErr_SetString(PyExc_TypeError,
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
812 "timeout must be an integer or None");
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
813 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
814 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
815 else {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
816 tout = PyNumber_Long(tout);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
817 if (!tout)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
818 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
819 timeout = PyLong_AsLong(tout);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
820 Py_DECREF(tout);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
821 if (timeout == -1 && PyErr_Occurred())
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
822 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
823 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
824
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
825 if ((timeout < -1) || (timeout > INT_MAX)) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
826 PyErr_SetString(PyExc_OverflowError,
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
827 "timeout is out of range");
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
828 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
829 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
830
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
831 if (devpoll_flush(self))
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
832 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
833
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
834 dvp.dp_fds = self->fds;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
835 dvp.dp_nfds = self->max_n_fds;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
836 dvp.dp_timeout = timeout;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
837
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
838 /* call devpoll() */
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
839 Py_BEGIN_ALLOW_THREADS
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
840 poll_result = ioctl(self->fd_devpoll, DP_POLL, &dvp);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
841 Py_END_ALLOW_THREADS
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
842
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
843 if (poll_result < 0) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
844 PyErr_SetFromErrno(PyExc_IOError);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
845 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
846 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
847
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
848 /* build the result list */
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
849
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
850 result_list = PyList_New(poll_result);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
851 if (!result_list)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
852 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
853 else {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
854 for (i = 0; i < poll_result; i++) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
855 num1 = PyLong_FromLong(self->fds[i].fd);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
856 num2 = PyLong_FromLong(self->fds[i].revents);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
857 if ((num1 == NULL) || (num2 == NULL)) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
858 Py_XDECREF(num1);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
859 Py_XDECREF(num2);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
860 goto error;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
861 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
862 value = PyTuple_Pack(2, num1, num2);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
863 Py_DECREF(num1);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
864 Py_DECREF(num2);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
865 if (value == NULL)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
866 goto error;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
867 if ((PyList_SetItem(result_list, i, value)) == -1) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
868 Py_DECREF(value);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
869 goto error;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
870 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
871 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
872 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
873
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
874 return result_list;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
875
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
876 error:
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
877 Py_DECREF(result_list);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
878 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
879 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
880
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
881 static PyMethodDef devpoll_methods[] = {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
882 {"register", (PyCFunction)devpoll_register,
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
883 METH_VARARGS, devpoll_register_doc},
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
884 {"modify", (PyCFunction)devpoll_modify,
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
885 METH_VARARGS, devpoll_modify_doc},
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
886 {"unregister", (PyCFunction)devpoll_unregister,
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
887 METH_O, devpoll_unregister_doc},
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
888 {"poll", (PyCFunction)devpoll_poll,
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
889 METH_VARARGS, devpoll_poll_doc},
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
890 {NULL, NULL} /* sentinel */
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
891 };
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
892
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
893 static devpollObject *
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
894 newDevPollObject(void)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
895 {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
896 devpollObject *self;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
897 int fd_devpoll, limit_result;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
898 struct pollfd *fds;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
899 struct rlimit limit;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
900
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
901 Py_BEGIN_ALLOW_THREADS
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
902 /*
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
903 ** If we try to process more that getrlimit()
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
904 ** fds, the kernel will give an error, so
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
905 ** we set the limit here. It is a dynamic
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
906 ** value, because we can change rlimit() anytime.
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
907 */
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
908 limit_result = getrlimit(RLIMIT_NOFILE, &limit);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
909 if (limit_result != -1)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
910 fd_devpoll = open("/dev/poll", O_RDWR);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
911 Py_END_ALLOW_THREADS
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
912
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
913 if (limit_result == -1) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
914 PyErr_SetFromErrno(PyExc_OSError);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
915 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
916 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
917 if (fd_devpoll == -1) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
918 PyErr_SetFromErrnoWithFilename(PyExc_IOError, "/dev/poll");
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
919 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
920 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
921
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
922 fds = PyMem_NEW(struct pollfd, limit.rlim_cur);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
923 if (fds == NULL) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
924 close(fd_devpoll);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
925 PyErr_NoMemory();
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
926 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
927 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
928
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
929 self = PyObject_New(devpollObject, &devpoll_Type);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
930 if (self == NULL) {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
931 close(fd_devpoll);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
932 PyMem_DEL(fds);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
933 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
934 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
935 self->fd_devpoll = fd_devpoll;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
936 self->max_n_fds = limit.rlim_cur;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
937 self->n_fds = 0;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
938 self->fds = fds;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
939
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
940 return self;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
941 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
942
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
943 static void
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
944 devpoll_dealloc(devpollObject *self)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
945 {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
946 Py_BEGIN_ALLOW_THREADS
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
947 close(self->fd_devpoll);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
948 Py_END_ALLOW_THREADS
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
949
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
950 PyMem_DEL(self->fds);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
951
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
952 PyObject_Del(self);
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
953 }
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
954
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
955 static PyTypeObject devpoll_Type = {
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
956 /* The ob_type field must be initialized in the module init function
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
957 * to be portable to Windows without using C++. */
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
958 PyVarObject_HEAD_INIT(NULL, 0)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
959 "select.devpoll", /*tp_name*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
960 sizeof(devpollObject), /*tp_basicsize*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
961 0, /*tp_itemsize*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
962 /* methods */
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
963 (destructor)devpoll_dealloc, /*tp_dealloc*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
964 0, /*tp_print*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
965 0, /*tp_getattr*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
966 0, /*tp_setattr*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
967 0, /*tp_reserved*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
968 0, /*tp_repr*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
969 0, /*tp_as_number*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
970 0, /*tp_as_sequence*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
971 0, /*tp_as_mapping*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
972 0, /*tp_hash*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
973 0, /*tp_call*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
974 0, /*tp_str*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
975 0, /*tp_getattro*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
976 0, /*tp_setattro*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
977 0, /*tp_as_buffer*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
978 Py_TPFLAGS_DEFAULT, /*tp_flags*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
979 0, /*tp_doc*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
980 0, /*tp_traverse*/
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
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981 0, /*tp_clear*/
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982 0, /*tp_richcompare*/
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983 0, /*tp_weaklistoffset*/
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984 0, /*tp_iter*/
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985 0, /*tp_iternext*/
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986 devpoll_methods, /*tp_methods*/
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987 };
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diff changeset
988 #endif /* HAVE_SYS_DEVPOLL_H */
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989
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990
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991
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diff changeset
992 PyDoc_STRVAR(poll_doc,
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993 "Returns a polling object, which supports registering and\n\
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994 unregistering file descriptors, and then polling them for I/O events.");
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995
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996 static PyObject *
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997 select_poll(PyObject *self, PyObject *unused)
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998 {
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999 return (PyObject *)newPollObject();
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1000 }
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1001
73549
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1002 #ifdef HAVE_SYS_DEVPOLL_H
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1003 PyDoc_STRVAR(devpoll_doc,
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1004 "Returns a polling object, which supports registering and\n\
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diff changeset
1005 unregistering file descriptors, and then polling them for I/O events.");
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1006
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1007 static PyObject *
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diff changeset
1008 select_devpoll(PyObject *self, PyObject *unused)
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1009 {
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1010 return (PyObject *)newDevPollObject();
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1011 }
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1012 #endif
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1013
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1014
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1015 #ifdef __APPLE__
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1016 /*
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1017 * On some systems poll() sets errno on invalid file descriptors. We test
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1018 * for this at runtime because this bug may be fixed or introduced between
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1019 * OS releases.
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1020 */
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1021 static int select_have_broken_poll(void)
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1022 {
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1023 int poll_test;
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1024 int filedes[2];
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1025
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1026 struct pollfd poll_struct = { 0, POLLIN|POLLPRI|POLLOUT, 0 };
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1027
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1028 /* Create a file descriptor to make invalid */
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1029 if (pipe(filedes) < 0) {
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1030 return 1;
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1031 }
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1032 poll_struct.fd = filedes[0];
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1033 close(filedes[0]);
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1034 close(filedes[1]);
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1035 poll_test = poll(&poll_struct, 1, 0);
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1036 if (poll_test < 0) {
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1037 return 1;
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1038 } else if (poll_test == 0 && poll_struct.revents != POLLNVAL) {
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1039 return 1;
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1040 }
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1041 return 0;
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1042 }
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1043 #endif /* __APPLE__ */
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1044
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1045 #endif /* HAVE_POLL */
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1046
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1047 #ifdef HAVE_EPOLL
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1048 /* **************************************************************************
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1049 * epoll interface for Linux 2.6
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1050 *
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1051 * Written by Christian Heimes
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1052 * Inspired by Twisted's _epoll.pyx and select.poll()
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1053 */
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1054
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1055 #ifdef HAVE_SYS_EPOLL_H
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1056 #include <sys/epoll.h>
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1057 #endif
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1058
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1059 /* default maximum number of events returned by epoll_wait() */
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Charles-François Natali <neologix@free.fr>
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1060 #define EPOLL_DEFAULT_MAXEVENTS (FD_SETSIZE)
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1061
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1062 typedef struct {
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1063 PyObject_HEAD
81341
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1064 SOCKET epfd; /* epoll control file descriptor */
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Charles-François Natali <neologix@free.fr>
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1065 int maxevents; /* maximum number of epoll events */
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1066 struct epoll_event *evs; /* epoll events buffer */
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1067 } pyEpoll_Object;
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1068
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1069 static PyTypeObject pyEpoll_Type;
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1070 #define pyepoll_CHECK(op) (PyObject_TypeCheck((op), &pyEpoll_Type))
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1071
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1072 static PyObject *
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1073 pyepoll_err_closed(void)
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1074 {
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1075 PyErr_SetString(PyExc_ValueError, "I/O operation on closed epoll fd");
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1076 return NULL;
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1077 }
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1078
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1079 static int
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1080 pyepoll_internal_close(pyEpoll_Object *self)
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1081 {
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1082 int save_errno = 0;
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1083 if (self->epfd >= 0) {
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1084 int epfd = self->epfd;
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1085 self->epfd = -1;
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1086 Py_BEGIN_ALLOW_THREADS
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1087 if (close(epfd) < 0)
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1088 save_errno = errno;
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1089 Py_END_ALLOW_THREADS
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1090 }
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1091 return save_errno;
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1092 }
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1093
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1094 static PyObject *
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1095 newPyEpoll_Object(PyTypeObject *type, int sizehint, int flags, SOCKET fd)
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1096 {
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1097 pyEpoll_Object *self;
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1098
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1099 assert(type != NULL && type->tp_alloc != NULL);
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1100 self = (pyEpoll_Object *) type->tp_alloc(type, 0);
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1101 if (self == NULL)
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1102 return NULL;
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1103
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1104 if (fd == -1) {
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1105 Py_BEGIN_ALLOW_THREADS
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1106 #ifdef HAVE_EPOLL_CREATE1
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1107 if (flags)
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1108 self->epfd = epoll_create1(flags);
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1109 else
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1110 #endif
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1111 self->epfd = epoll_create(sizehint);
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1112 Py_END_ALLOW_THREADS
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1113 }
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1114 else {
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1115 self->epfd = fd;
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1116 }
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1117 if (self->epfd < 0) {
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1118 Py_DECREF(self);
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1119 PyErr_SetFromErrno(PyExc_OSError);
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1120 return NULL;
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1121 }
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1122
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1123 self->maxevents = EPOLL_DEFAULT_MAXEVENTS;
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1124 self->evs = PyMem_New(struct epoll_event, self->maxevents);
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1125 if (!self->evs) {
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1126 Py_DECREF(self);
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1127 PyErr_NoMemory();
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1128 return NULL;
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1129 }
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1130
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1131 return (PyObject *)self;
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1132 }
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1133
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1134
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1135 static PyObject *
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1136 pyepoll_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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1137 {
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1138 int flags = 0, sizehint = FD_SETSIZE - 1;
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1139 static char *kwlist[] = {"sizehint", "flags", NULL};
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1140
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1141 if (!PyArg_ParseTupleAndKeywords(args, kwds, "|ii:epoll", kwlist,
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1142 &sizehint, &flags))
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1143 return NULL;
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1144 if (sizehint < 0) {
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1145 PyErr_SetString(PyExc_ValueError, "negative sizehint");
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1146 return NULL;
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1147 }
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1148
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1149 return newPyEpoll_Object(type, sizehint, flags, -1);
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1150 }
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1151
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1152
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1153 static void
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1154 pyepoll_dealloc(pyEpoll_Object *self)
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1155 {
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1156 (void)pyepoll_internal_close(self);
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1157 if (self->evs) {
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1158 PyMem_Free(self->evs);
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1159 self->evs = NULL;
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1160 }
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1161 Py_TYPE(self)->tp_free(self);
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1162 }
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1163
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1164 static PyObject*
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1165 pyepoll_close(pyEpoll_Object *self)
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1166 {
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1167 errno = pyepoll_internal_close(self);
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1168 if (errno < 0) {
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1169 PyErr_SetFromErrno(PyExc_OSError);
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1170 return NULL;
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1171 }
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1172 Py_RETURN_NONE;
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1173 }
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1174
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1175 PyDoc_STRVAR(pyepoll_close_doc,
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diff changeset
1176 "close() -> None\n\
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1177 \n\
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1178 Close the epoll control file descriptor. Further operations on the epoll\n\
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1179 object will raise an exception.");
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1180
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1181 static PyObject*
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1182 pyepoll_get_closed(pyEpoll_Object *self)
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1183 {
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1184 if (self->epfd < 0)
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1185 Py_RETURN_TRUE;
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1186 else
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1187 Py_RETURN_FALSE;
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1188 }
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1189
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1190 static PyObject*
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1191 pyepoll_fileno(pyEpoll_Object *self)
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1192 {
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1193 if (self->epfd < 0)
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1194 return pyepoll_err_closed();
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1195 return PyLong_FromLong(self->epfd);
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1196 }
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1197
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1198 PyDoc_STRVAR(pyepoll_fileno_doc,
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1199 "fileno() -> int\n\
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1200 \n\
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1201 Return the epoll control file descriptor.");
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1202
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1203 static PyObject*
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1204 pyepoll_fromfd(PyObject *cls, PyObject *args)
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1205 {
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1206 SOCKET fd;
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1207
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1208 if (!PyArg_ParseTuple(args, "i:fromfd", &fd))
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1209 return NULL;
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1210
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1211 return newPyEpoll_Object((PyTypeObject*)cls, FD_SETSIZE - 1, 0, fd);
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1212 }
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1213
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1214 PyDoc_STRVAR(pyepoll_fromfd_doc,
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1215 "fromfd(fd) -> epoll\n\
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1216 \n\
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1217 Create an epoll object from a given control fd.");
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1218
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1219 static PyObject *
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1220 pyepoll_internal_ctl(int epfd, int op, PyObject *pfd, unsigned int events)
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1221 {
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1222 struct epoll_event ev;
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1223 int result;
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1224 int fd;
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1225
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1226 if (epfd < 0)
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1227 return pyepoll_err_closed();
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1228
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1229 fd = PyObject_AsFileDescriptor(pfd);
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1230 if (fd == -1) {
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1231 return NULL;
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1232 }
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1233
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1234 switch(op) {
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1235 case EPOLL_CTL_ADD:
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1236 case EPOLL_CTL_MOD:
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1237 ev.events = events;
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1238 ev.data.fd = fd;
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1239 Py_BEGIN_ALLOW_THREADS
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1240 result = epoll_ctl(epfd, op, fd, &ev);
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1241 Py_END_ALLOW_THREADS
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1242 break;
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1243 case EPOLL_CTL_DEL:
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1244 /* In kernel versions before 2.6.9, the EPOLL_CTL_DEL
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1245 * operation required a non-NULL pointer in event, even
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1246 * though this argument is ignored. */
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1247 Py_BEGIN_ALLOW_THREADS
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1248 result = epoll_ctl(epfd, op, fd, &ev);
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1249 if (errno == EBADF) {
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1250 /* fd already closed */
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1251 result = 0;
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1252 errno = 0;
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1253 }
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1254 Py_END_ALLOW_THREADS
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1255 break;
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1256 default:
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1257 result = -1;
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1258 errno = EINVAL;
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1259 }
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1260
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1261 if (result < 0) {
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1262 PyErr_SetFromErrno(PyExc_OSError);
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1263 return NULL;
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1264 }
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1265 Py_RETURN_NONE;
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1266 }
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1267
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1268 static PyObject *
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1269 pyepoll_register(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
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1270 {
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1271 PyObject *pfd;
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1272 unsigned int events = EPOLLIN | EPOLLOUT | EPOLLPRI;
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1273 static char *kwlist[] = {"fd", "eventmask", NULL};
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1274
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1275 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|I:register", kwlist,
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1276 &pfd, &events)) {
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1277 return NULL;
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1278 }
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1279
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1280 return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_ADD, pfd, events);
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1281 }
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1282
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1283 PyDoc_STRVAR(pyepoll_register_doc,
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1284 "register(fd[, eventmask]) -> None\n\
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1285 \n\
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1286 Registers a new fd or raises an OSError if the fd is already registered.\n\
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1287 fd is the target file descriptor of the operation.\n\
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1288 events is a bit set composed of the various EPOLL constants; the default\n\
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1289 is EPOLL_IN | EPOLL_OUT | EPOLL_PRI.\n\
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1290 \n\
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1291 The epoll interface supports all file descriptors that support poll.");
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1292
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1293 static PyObject *
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1294 pyepoll_modify(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
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1295 {
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1296 PyObject *pfd;
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1297 unsigned int events;
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1298 static char *kwlist[] = {"fd", "eventmask", NULL};
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1299
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1300 if (!PyArg_ParseTupleAndKeywords(args, kwds, "OI:modify", kwlist,
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1301 &pfd, &events)) {
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1302 return NULL;
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1303 }
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1304
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1305 return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_MOD, pfd, events);
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1306 }
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1307
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1308 PyDoc_STRVAR(pyepoll_modify_doc,
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1309 "modify(fd, eventmask) -> None\n\
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1310 \n\
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1311 fd is the target file descriptor of the operation\n\
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1312 events is a bit set composed of the various EPOLL constants");
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1313
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1314 static PyObject *
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1315 pyepoll_unregister(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
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1316 {
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1317 PyObject *pfd;
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1318 static char *kwlist[] = {"fd", NULL};
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1319
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1320 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O:unregister", kwlist,
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1321 &pfd)) {
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1322 return NULL;
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1323 }
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1324
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1325 return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_DEL, pfd, 0);
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1326 }
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1327
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1328 PyDoc_STRVAR(pyepoll_unregister_doc,
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1329 "unregister(fd) -> None\n\
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1330 \n\
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1331 fd is the target file descriptor of the operation.");
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1332
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1333 static PyObject *
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1334 pyepoll_poll(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
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1335 {
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1336 double dtimeout = -1.;
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1337 int timeout;
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1338 int maxevents = -1;
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1339 int nfds, i;
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1340 PyObject *elist = NULL, *etuple = NULL;
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1341 static char *kwlist[] = {"timeout", "maxevents", NULL};
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1342
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1343 if (self->epfd < 0)
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1344 return pyepoll_err_closed();
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1345
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1346 if (!PyArg_ParseTupleAndKeywords(args, kwds, "|di:poll", kwlist,
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1347 &dtimeout, &maxevents)) {
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1348 return NULL;
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1349 }
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1350
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1351 if (dtimeout < 0) {
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1352 timeout = -1;
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1353 }
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1354 else if (dtimeout * 1000.0 > INT_MAX) {
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1355 PyErr_SetString(PyExc_OverflowError,
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1356 "timeout is too large");
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1357 return NULL;
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1358 }
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1359 else {
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1360 timeout = (int)(dtimeout * 1000.0);
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1361 }
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1362
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1363 if (maxevents == -1) {
81341
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Charles-François Natali <neologix@free.fr>
parents: 80863
diff changeset
1364 maxevents = EPOLL_DEFAULT_MAXEVENTS;
be8e6b81284e Issue #16876: Optimize epoll.poll() by keeping a per-instance epoll events
Charles-François Natali <neologix@free.fr>
parents: 80863
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1365 } else if (maxevents < 1) {
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1366 PyErr_Format(PyExc_ValueError,
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1367 "maxevents must be greater than 0, got %d",
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1368 maxevents);
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1369 return NULL;
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1370 }
81341
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Charles-François Natali <neologix@free.fr>
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1371 if (maxevents > self->maxevents) {
be8e6b81284e Issue #16876: Optimize epoll.poll() by keeping a per-instance epoll events
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diff changeset
1372 struct epoll_event *orig_evs = self->evs;
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1373
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1374 PyMem_RESIZE(self->evs, struct epoll_event, maxevents);
be8e6b81284e Issue #16876: Optimize epoll.poll() by keeping a per-instance epoll events
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1375 if (!self->evs) {
be8e6b81284e Issue #16876: Optimize epoll.poll() by keeping a per-instance epoll events
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1376 self->evs = orig_evs;
be8e6b81284e Issue #16876: Optimize epoll.poll() by keeping a per-instance epoll events
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1377 PyErr_NoMemory();
be8e6b81284e Issue #16876: Optimize epoll.poll() by keeping a per-instance epoll events
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1378 return NULL;
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1379 }
be8e6b81284e Issue #16876: Optimize epoll.poll() by keeping a per-instance epoll events
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1380 self->maxevents = maxevents;
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1381 }
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1382
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1383 Py_BEGIN_ALLOW_THREADS
81341
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Charles-François Natali <neologix@free.fr>
parents: 80863
diff changeset
1384 nfds = epoll_wait(self->epfd, self->evs, self->maxevents, timeout);
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1385 Py_END_ALLOW_THREADS
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1386 if (nfds < 0) {
72879
41a1de81ef2b PEP 3151 / issue #12555: reworking the OS and IO exception hierarchy.
Antoine Pitrou <solipsis@pitrou.net>
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1387 PyErr_SetFromErrno(PyExc_OSError);
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1388 goto error;
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1389 }
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1390
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1391 elist = PyList_New(nfds);
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1392 if (elist == NULL) {
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1393 goto error;
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1394 }
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1395
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1396 for (i = 0; i < nfds; i++) {
81341
be8e6b81284e Issue #16876: Optimize epoll.poll() by keeping a per-instance epoll events
Charles-François Natali <neologix@free.fr>
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diff changeset
1397 etuple = Py_BuildValue("iI", self->evs[i].data.fd, self->evs[i].events);
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1398 if (etuple == NULL) {
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1399 Py_CLEAR(elist);
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1400 goto error;
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1401 }
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1402 PyList_SET_ITEM(elist, i, etuple);
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1403 }
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1404
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1405 error:
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1406 return elist;
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1407 }
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1408
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1409 PyDoc_STRVAR(pyepoll_poll_doc,
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1410 "poll([timeout=-1[, maxevents=-1]]) -> [(fd, events), (...)]\n\
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1411 \n\
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1412 Wait for events on the epoll file descriptor for a maximum time of timeout\n\
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1413 in seconds (as float). -1 makes poll wait indefinitely.\n\
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1414 Up to maxevents are returned to the caller.");
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1415
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1416 static PyObject *
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1417 pyepoll_enter(pyEpoll_Object *self, PyObject *args)
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1418 {
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1419 if (self->epfd < 0)
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1420 return pyepoll_err_closed();
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1421
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1422 Py_INCREF(self);
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1423 return (PyObject *)self;
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1424 }
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1425
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1426 static PyObject *
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1427 pyepoll_exit(PyObject *self, PyObject *args)
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1428 {
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1429 _Py_IDENTIFIER(close);
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1430
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1431 return _PyObject_CallMethodId(self, &PyId_close, NULL);
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1432 }
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1433
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1434 static PyMethodDef pyepoll_methods[] = {
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1435 {"fromfd", (PyCFunction)pyepoll_fromfd,
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1436 METH_VARARGS | METH_CLASS, pyepoll_fromfd_doc},
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1437 {"close", (PyCFunction)pyepoll_close, METH_NOARGS,
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1438 pyepoll_close_doc},
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1439 {"fileno", (PyCFunction)pyepoll_fileno, METH_NOARGS,
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1440 pyepoll_fileno_doc},
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1441 {"modify", (PyCFunction)pyepoll_modify,
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1442 METH_VARARGS | METH_KEYWORDS, pyepoll_modify_doc},
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1443 {"register", (PyCFunction)pyepoll_register,
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1444 METH_VARARGS | METH_KEYWORDS, pyepoll_register_doc},
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1445 {"unregister", (PyCFunction)pyepoll_unregister,
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1446 METH_VARARGS | METH_KEYWORDS, pyepoll_unregister_doc},
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1447 {"poll", (PyCFunction)pyepoll_poll,
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1448 METH_VARARGS | METH_KEYWORDS, pyepoll_poll_doc},
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1449 {"__enter__", (PyCFunction)pyepoll_enter, METH_NOARGS,
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1450 NULL},
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1451 {"__exit__", (PyCFunction)pyepoll_exit, METH_VARARGS,
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1452 NULL},
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1453 {NULL, NULL},
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1454 };
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1455
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1456 static PyGetSetDef pyepoll_getsetlist[] = {
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1457 {"closed", (getter)pyepoll_get_closed, NULL,
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1458 "True if the epoll handler is closed"},
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1459 {0},
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1460 };
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1461
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1462 PyDoc_STRVAR(pyepoll_doc,
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1463 "select.epoll(sizehint=-1, flags=0)\n\
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1464 \n\
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1465 Returns an epolling object\n\
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1466 \n\
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1467 sizehint must be a positive integer or -1 for the default size. The\n\
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1468 sizehint is used to optimize internal data structures. It doesn't limit\n\
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1469 the maximum number of monitored events.");
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1470
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1471 static PyTypeObject pyEpoll_Type = {
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1472 PyVarObject_HEAD_INIT(NULL, 0)
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1473 "select.epoll", /* tp_name */
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1474 sizeof(pyEpoll_Object), /* tp_basicsize */
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1475 0, /* tp_itemsize */
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1476 (destructor)pyepoll_dealloc, /* tp_dealloc */
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1477 0, /* tp_print */
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1478 0, /* tp_getattr */
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1479 0, /* tp_setattr */
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1480 0, /* tp_reserved */
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1481 0, /* tp_repr */
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1482 0, /* tp_as_number */
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1483 0, /* tp_as_sequence */
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1484 0, /* tp_as_mapping */
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1485 0, /* tp_hash */
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1486 0, /* tp_call */
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1487 0, /* tp_str */
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1488 PyObject_GenericGetAttr, /* tp_getattro */
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1489 0, /* tp_setattro */
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1490 0, /* tp_as_buffer */
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1491 Py_TPFLAGS_DEFAULT, /* tp_flags */
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1492 pyepoll_doc, /* tp_doc */
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1493 0, /* tp_traverse */
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1494 0, /* tp_clear */
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1495 0, /* tp_richcompare */
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1496 0, /* tp_weaklistoffset */
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1497 0, /* tp_iter */
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1498 0, /* tp_iternext */
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1499 pyepoll_methods, /* tp_methods */
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1500 0, /* tp_members */
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1501 pyepoll_getsetlist, /* tp_getset */
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1502 0, /* tp_base */
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1503 0, /* tp_dict */
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1504 0, /* tp_descr_get */
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1505 0, /* tp_descr_set */
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1506 0, /* tp_dictoffset */
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1507 0, /* tp_init */
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1508 0, /* tp_alloc */
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1509 pyepoll_new, /* tp_new */
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1510 0, /* tp_free */
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1511 };
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1512
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1513 #endif /* HAVE_EPOLL */
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1514
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1515 #ifdef HAVE_KQUEUE
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1516 /* **************************************************************************
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1517 * kqueue interface for BSD
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1518 *
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1519 * Copyright (c) 2000 Doug White, 2006 James Knight, 2007 Christian Heimes
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1520 * All rights reserved.
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1521 *
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1522 * Redistribution and use in source and binary forms, with or without
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1523 * modification, are permitted provided that the following conditions
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1524 * are met:
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1525 * 1. Redistributions of source code must retain the above copyright
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1526 * notice, this list of conditions and the following disclaimer.
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1527 * 2. Redistributions in binary form must reproduce the above copyright
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1528 * notice, this list of conditions and the following disclaimer in the
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1529 * documentation and/or other materials provided with the distribution.
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1530 *
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1531 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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1532 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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1533 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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1534 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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1535 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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1536 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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1537 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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1538 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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1539 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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1540 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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1541 * SUCH DAMAGE.
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1542 */
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1543
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1544 #ifdef HAVE_SYS_EVENT_H
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1545 #include <sys/event.h>
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1546 #endif
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1547
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1548 PyDoc_STRVAR(kqueue_event_doc,
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1549 "kevent(ident, filter=KQ_FILTER_READ, flags=KQ_EV_ADD, fflags=0, data=0, udata=0)\n\
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1550 \n\
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1551 This object is the equivalent of the struct kevent for the C API.\n\
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1552 \n\
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1553 See the kqueue manpage for more detailed information about the meaning\n\
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1554 of the arguments.\n\
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1555 \n\
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1556 One minor note: while you might hope that udata could store a\n\
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1557 reference to a python object, it cannot, because it is impossible to\n\
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1558 keep a proper reference count of the object once it's passed into the\n\
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1559 kernel. Therefore, I have restricted it to only storing an integer. I\n\
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1560 recommend ignoring it and simply using the 'ident' field to key off\n\
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1561 of. You could also set up a dictionary on the python side to store a\n\
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1562 udata->object mapping.");
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1563
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1564 typedef struct {
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1565 PyObject_HEAD
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1566 struct kevent e;
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1567 } kqueue_event_Object;
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1568
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1569 static PyTypeObject kqueue_event_Type;
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1570
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1571 #define kqueue_event_Check(op) (PyObject_TypeCheck((op), &kqueue_event_Type))
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1572
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1573 typedef struct {
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1574 PyObject_HEAD
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1575 SOCKET kqfd; /* kqueue control fd */
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1576 } kqueue_queue_Object;
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1577
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1578 static PyTypeObject kqueue_queue_Type;
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1579
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1580 #define kqueue_queue_Check(op) (PyObject_TypeCheck((op), &kqueue_queue_Type))
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1581
57113
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1582 #if (SIZEOF_UINTPTR_T != SIZEOF_VOID_P)
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1583 # error uintptr_t does not match void *!
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1584 #elif (SIZEOF_UINTPTR_T == SIZEOF_LONG_LONG)
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1585 # define T_UINTPTRT T_ULONGLONG
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1586 # define T_INTPTRT T_LONGLONG
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1587 # define PyLong_AsUintptr_t PyLong_AsUnsignedLongLong
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1588 # define UINTPTRT_FMT_UNIT "K"
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1589 # define INTPTRT_FMT_UNIT "L"
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1590 #elif (SIZEOF_UINTPTR_T == SIZEOF_LONG)
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1591 # define T_UINTPTRT T_ULONG
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1592 # define T_INTPTRT T_LONG
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1593 # define PyLong_AsUintptr_t PyLong_AsUnsignedLong
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1594 # define UINTPTRT_FMT_UNIT "k"
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1595 # define INTPTRT_FMT_UNIT "l"
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1596 #elif (SIZEOF_UINTPTR_T == SIZEOF_INT)
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1597 # define T_UINTPTRT T_UINT
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1598 # define T_INTPTRT T_INT
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1599 # define PyLong_AsUintptr_t PyLong_AsUnsignedLong
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1600 # define UINTPTRT_FMT_UNIT "I"
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1601 # define INTPTRT_FMT_UNIT "i"
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1602 #else
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1603 # error uintptr_t does not match int, long, or long long!
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1604 #endif
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1605
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1606 /* Unfortunately, we can't store python objects in udata, because
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1607 * kevents in the kernel can be removed without warning, which would
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1608 * forever lose the refcount on the object stored with it.
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1609 */
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1610
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1611 #define KQ_OFF(x) offsetof(kqueue_event_Object, x)
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1612 static struct PyMemberDef kqueue_event_members[] = {
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1613 {"ident", T_UINTPTRT, KQ_OFF(e.ident)},
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1614 {"filter", T_SHORT, KQ_OFF(e.filter)},
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1615 {"flags", T_USHORT, KQ_OFF(e.flags)},
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1616 {"fflags", T_UINT, KQ_OFF(e.fflags)},
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1617 {"data", T_INTPTRT, KQ_OFF(e.data)},
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1618 {"udata", T_UINTPTRT, KQ_OFF(e.udata)},
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1619 {NULL} /* Sentinel */
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1620 };
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1621 #undef KQ_OFF
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1622
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1623 static PyObject *
59616
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1624
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1625 kqueue_event_repr(kqueue_event_Object *s)
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1626 {
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1627 char buf[1024];
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1628 PyOS_snprintf(
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1629 buf, sizeof(buf),
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1630 "<select.kevent ident=%zu filter=%d flags=0x%x fflags=0x%x "
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1631 "data=0x%zd udata=%p>",
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1632 (size_t)(s->e.ident), s->e.filter, s->e.flags,
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1633 s->e.fflags, (Py_ssize_t)(s->e.data), s->e.udata);
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1634 return PyUnicode_FromString(buf);
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1635 }
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1636
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1637 static int
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1638 kqueue_event_init(kqueue_event_Object *self, PyObject *args, PyObject *kwds)
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1639 {
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1640 PyObject *pfd;
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1641 static char *kwlist[] = {"ident", "filter", "flags", "fflags",
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1642 "data", "udata", NULL};
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1643 static char *fmt = "O|hhi" INTPTRT_FMT_UNIT UINTPTRT_FMT_UNIT ":kevent";
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1644
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1645 EV_SET(&(self->e), 0, EVFILT_READ, EV_ADD, 0, 0, 0); /* defaults */
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1646
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1647 if (!PyArg_ParseTupleAndKeywords(args, kwds, fmt, kwlist,
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1648 &pfd, &(self->e.filter), &(self->e.flags),
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1649 &(self->e.fflags), &(self->e.data), &(self->e.udata))) {
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1650 return -1;
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1651 }
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1652
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1653 if (PyLong_Check(pfd)) {
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1654 self->e.ident = PyLong_AsUintptr_t(pfd);
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1655 }
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1656 else {
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1657 self->e.ident = PyObject_AsFileDescriptor(pfd);
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1658 }
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1659 if (PyErr_Occurred()) {
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1660 return -1;
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1661 }
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1662 return 0;
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1663 }
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1664
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1665 static PyObject *
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1666 kqueue_event_richcompare(kqueue_event_Object *s, kqueue_event_Object *o,
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1667 int op)
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1668 {
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1669 Py_intptr_t result = 0;
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1670
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1671 if (!kqueue_event_Check(o)) {
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1672 if (op == Py_EQ || op == Py_NE) {
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1673 PyObject *res = op == Py_EQ ? Py_False : Py_True;
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1674 Py_INCREF(res);
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1675 return res;
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1676 }
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1677 PyErr_Format(PyExc_TypeError,
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1678 "can't compare %.200s to %.200s",
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1679 Py_TYPE(s)->tp_name, Py_TYPE(o)->tp_name);
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1680 return NULL;
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1681 }
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1682 if (((result = s->e.ident - o->e.ident) == 0) &&
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1683 ((result = s->e.filter - o->e.filter) == 0) &&
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1684 ((result = s->e.flags - o->e.flags) == 0) &&
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1685 ((result = s->e.fflags - o->e.fflags) == 0) &&
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1686 ((result = s->e.data - o->e.data) == 0) &&
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1687 ((result = s->e.udata - o->e.udata) == 0)
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1688 ) {
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1689 result = 0;
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1690 }
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1691
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1692 switch (op) {
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1693 case Py_EQ:
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1694 result = (result == 0);
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1695 break;
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1696 case Py_NE:
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1697 result = (result != 0);
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1698 break;
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1699 case Py_LE:
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1700 result = (result <= 0);
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1701 break;
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1702 case Py_GE:
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1703 result = (result >= 0);
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1704 break;
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1705 case Py_LT:
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1706 result = (result < 0);
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1707 break;
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1708 case Py_GT:
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1709 result = (result > 0);
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1710 break;
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1711 }
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1712 return PyBool_FromLong((long)result);
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1713 }
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1714
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1715 static PyTypeObject kqueue_event_Type = {
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1716 PyVarObject_HEAD_INIT(NULL, 0)
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1717 "select.kevent", /* tp_name */
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1718 sizeof(kqueue_event_Object), /* tp_basicsize */
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1719 0, /* tp_itemsize */
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1720 0, /* tp_dealloc */
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1721 0, /* tp_print */
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1722 0, /* tp_getattr */
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1723 0, /* tp_setattr */
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1724 0, /* tp_reserved */
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1725 (reprfunc)kqueue_event_repr, /* tp_repr */
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1726 0, /* tp_as_number */
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1727 0, /* tp_as_sequence */
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1728 0, /* tp_as_mapping */
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1729 0, /* tp_hash */
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1730 0, /* tp_call */
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1731 0, /* tp_str */
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1732 0, /* tp_getattro */
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1733 0, /* tp_setattro */
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1734 0, /* tp_as_buffer */
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1735 Py_TPFLAGS_DEFAULT, /* tp_flags */
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1736 kqueue_event_doc, /* tp_doc */
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1737 0, /* tp_traverse */
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1738 0, /* tp_clear */
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1739 (richcmpfunc)kqueue_event_richcompare, /* tp_richcompare */
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1740 0, /* tp_weaklistoffset */
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1741 0, /* tp_iter */
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1742 0, /* tp_iternext */
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1743 0, /* tp_methods */
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1744 kqueue_event_members, /* tp_members */
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1745 0, /* tp_getset */
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1746 0, /* tp_base */
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1747 0, /* tp_dict */
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1748 0, /* tp_descr_get */
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1749 0, /* tp_descr_set */
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1750 0, /* tp_dictoffset */
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1751 (initproc)kqueue_event_init, /* tp_init */
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1752 0, /* tp_alloc */
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1753 0, /* tp_new */
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1754 0, /* tp_free */
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1755 };
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1756
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1757 static PyObject *
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1758 kqueue_queue_err_closed(void)
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1759 {
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1760 PyErr_SetString(PyExc_ValueError, "I/O operation on closed kqueue fd");
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1761 return NULL;
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1762 }
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1763
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1764 static int
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1765 kqueue_queue_internal_close(kqueue_queue_Object *self)
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1766 {
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1767 int save_errno = 0;
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1768 if (self->kqfd >= 0) {
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1769 int kqfd = self->kqfd;
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1770 self->kqfd = -1;
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1771 Py_BEGIN_ALLOW_THREADS
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1772 if (close(kqfd) < 0)
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1773 save_errno = errno;
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1774 Py_END_ALLOW_THREADS
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1775 }
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1776 return save_errno;
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1777 }
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1778
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1779 static PyObject *
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1780 newKqueue_Object(PyTypeObject *type, SOCKET fd)
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1781 {
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1782 kqueue_queue_Object *self;
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1783 assert(type != NULL && type->tp_alloc != NULL);
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1784 self = (kqueue_queue_Object *) type->tp_alloc(type, 0);
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1785 if (self == NULL) {
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1786 return NULL;
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1787 }
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1788
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1789 if (fd == -1) {
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1790 Py_BEGIN_ALLOW_THREADS
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1791 self->kqfd = kqueue();
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1792 Py_END_ALLOW_THREADS
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1793 }
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1794 else {
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1795 self->kqfd = fd;
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1796 }
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1797 if (self->kqfd < 0) {
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1798 Py_DECREF(self);
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1799 PyErr_SetFromErrno(PyExc_OSError);
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1800 return NULL;
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1801 }
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1802 return (PyObject *)self;
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1803 }
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1804
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1805 static PyObject *
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1806 kqueue_queue_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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1807 {
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1808
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1809 if ((args != NULL && PyObject_Size(args)) ||
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1810 (kwds != NULL && PyObject_Size(kwds))) {
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1811 PyErr_SetString(PyExc_ValueError,
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1812 "select.kqueue doesn't accept arguments");
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1813 return NULL;
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1814 }
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1815
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1816 return newKqueue_Object(type, -1);
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1817 }
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1818
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1819 static void
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1820 kqueue_queue_dealloc(kqueue_queue_Object *self)
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1821 {
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1822 kqueue_queue_internal_close(self);
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1823 Py_TYPE(self)->tp_free(self);
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1824 }
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1825
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1826 static PyObject*
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1827 kqueue_queue_close(kqueue_queue_Object *self)
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1828 {
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1829 errno = kqueue_queue_internal_close(self);
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1830 if (errno < 0) {
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1831 PyErr_SetFromErrno(PyExc_OSError);
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1832 return NULL;
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1833 }
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1834 Py_RETURN_NONE;
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1835 }
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1836
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1837 PyDoc_STRVAR(kqueue_queue_close_doc,
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1838 "close() -> None\n\
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1839 \n\
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1840 Close the kqueue control file descriptor. Further operations on the kqueue\n\
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diff changeset
1841 object will raise an exception.");
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diff changeset
1842
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diff changeset
1843 static PyObject*
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diff changeset
1844 kqueue_queue_get_closed(kqueue_queue_Object *self)
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diff changeset
1845 {
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1846 if (self->kqfd < 0)
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1847 Py_RETURN_TRUE;
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1848 else
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1849 Py_RETURN_FALSE;
45996
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diff changeset
1850 }
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diff changeset
1851
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diff changeset
1852 static PyObject*
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diff changeset
1853 kqueue_queue_fileno(kqueue_queue_Object *self)
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diff changeset
1854 {
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1855 if (self->kqfd < 0)
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1856 return kqueue_queue_err_closed();
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diff changeset
1857 return PyLong_FromLong(self->kqfd);
45996
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diff changeset
1858 }
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diff changeset
1859
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diff changeset
1860 PyDoc_STRVAR(kqueue_queue_fileno_doc,
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diff changeset
1861 "fileno() -> int\n\
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diff changeset
1862 \n\
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diff changeset
1863 Return the kqueue control file descriptor.");
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diff changeset
1864
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diff changeset
1865 static PyObject*
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diff changeset
1866 kqueue_queue_fromfd(PyObject *cls, PyObject *args)
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diff changeset
1867 {
61467
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1868 SOCKET fd;
45996
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1869
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1870 if (!PyArg_ParseTuple(args, "i:fromfd", &fd))
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1871 return NULL;
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1872
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1873 return newKqueue_Object((PyTypeObject*)cls, fd);
45996
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1874 }
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diff changeset
1875
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diff changeset
1876 PyDoc_STRVAR(kqueue_queue_fromfd_doc,
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diff changeset
1877 "fromfd(fd) -> kqueue\n\
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diff changeset
1878 \n\
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diff changeset
1879 Create a kqueue object from a given control fd.");
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diff changeset
1880
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diff changeset
1881 static PyObject *
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diff changeset
1882 kqueue_queue_control(kqueue_queue_Object *self, PyObject *args)
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1883 {
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1884 int nevents = 0;
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1885 int gotevents = 0;
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1886 int nchanges = 0;
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1887 int i = 0;
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1888 PyObject *otimeout = NULL;
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1889 PyObject *ch = NULL;
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1890 PyObject *it = NULL, *ei = NULL;
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1891 PyObject *result = NULL;
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1892 struct kevent *evl = NULL;
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diff changeset
1893 struct kevent *chl = NULL;
75592
1eaf6e899f02 Issue #14180: Fix select.select() compilation on BSD and a typo in kqueue_queue_control()
Victor Stinner <vstinner@wyplay.com>
parents: 75590
diff changeset
1894 struct timespec timeout;
61467
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1895 struct timespec *ptimeoutspec;
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1896
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1897 if (self->kqfd < 0)
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1898 return kqueue_queue_err_closed();
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1899
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1900 if (!PyArg_ParseTuple(args, "Oi|O:control", &ch, &nevents, &otimeout))
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1901 return NULL;
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1902
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1903 if (nevents < 0) {
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1904 PyErr_Format(PyExc_ValueError,
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1905 "Length of eventlist must be 0 or positive, got %d",
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1906 nevents);
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1907 return NULL;
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1908 }
45996
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1909
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1910 if (otimeout == Py_None || otimeout == NULL) {
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1911 ptimeoutspec = NULL;
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1912 }
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1913 else if (PyNumber_Check(otimeout)) {
75590
1e9cc1a03365 Close #14180: Factorize code to convert a number of seconds to time_t, timeval or timespec
Victor Stinner <vstinner@wyplay.com>
parents: 74188
diff changeset
1914 if (_PyTime_ObjectToTimespec(otimeout,
1e9cc1a03365 Close #14180: Factorize code to convert a number of seconds to time_t, timeval or timespec
Victor Stinner <vstinner@wyplay.com>
parents: 74188
diff changeset
1915 &timeout.tv_sec, &timeout.tv_nsec) == -1)
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1916 return NULL;
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1e9cc1a03365 Close #14180: Factorize code to convert a number of seconds to time_t, timeval or timespec
Victor Stinner <vstinner@wyplay.com>
parents: 74188
diff changeset
1917
1e9cc1a03365 Close #14180: Factorize code to convert a number of seconds to time_t, timeval or timespec
Victor Stinner <vstinner@wyplay.com>
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diff changeset
1918 if (timeout.tv_sec < 0) {
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1919 PyErr_SetString(PyExc_ValueError,
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1920 "timeout must be positive or None");
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1921 return NULL;
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1922 }
75593
cb1c877a27f2 Issue #14180: Fix another typo in kqueue_queue_control()
Victor Stinner <vstinner@wyplay.com>
parents: 75592
diff changeset
1923 ptimeoutspec = &timeout;
61467
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1924 }
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1925 else {
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1926 PyErr_Format(PyExc_TypeError,
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diff changeset
1927 "timeout argument must be an number "
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diff changeset
1928 "or None, got %.200s",
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1929 Py_TYPE(otimeout)->tp_name);
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1930 return NULL;
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1931 }
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1932
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1933 if (ch != NULL && ch != Py_None) {
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1934 it = PyObject_GetIter(ch);
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1935 if (it == NULL) {
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1936 PyErr_SetString(PyExc_TypeError,
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1937 "changelist is not iterable");
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1938 return NULL;
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1939 }
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1940 nchanges = PyObject_Size(ch);
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1941 if (nchanges < 0) {
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1942 goto error;
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1943 }
59616
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diff changeset
1944
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1945 chl = PyMem_New(struct kevent, nchanges);
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1946 if (chl == NULL) {
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1947 PyErr_NoMemory();
61466
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1948 goto error;
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1949 }
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1950 i = 0;
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1951 while ((ei = PyIter_Next(it)) != NULL) {
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1952 if (!kqueue_event_Check(ei)) {
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1953 Py_DECREF(ei);
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1954 PyErr_SetString(PyExc_TypeError,
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1955 "changelist must be an iterable of "
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1956 "select.kevent objects");
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1957 goto error;
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1958 } else {
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1959 chl[i++] = ((kqueue_event_Object *)ei)->e;
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1960 }
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1961 Py_DECREF(ei);
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1962 }
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1963 }
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1964 Py_CLEAR(it);
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1965
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1966 /* event list */
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1967 if (nevents) {
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1968 evl = PyMem_New(struct kevent, nevents);
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1969 if (evl == NULL) {
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1970 PyErr_NoMemory();
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1971 goto error;
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1972 }
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1973 }
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1974
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1975 Py_BEGIN_ALLOW_THREADS
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1976 gotevents = kevent(self->kqfd, chl, nchanges,
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1977 evl, nevents, ptimeoutspec);
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1978 Py_END_ALLOW_THREADS
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1979
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1980 if (gotevents == -1) {
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1981 PyErr_SetFromErrno(PyExc_OSError);
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1982 goto error;
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1983 }
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1984
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1985 result = PyList_New(gotevents);
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1986 if (result == NULL) {
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1987 goto error;
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1988 }
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1989
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1990 for (i = 0; i < gotevents; i++) {
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1991 kqueue_event_Object *ch;
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1992
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1993 ch = PyObject_New(kqueue_event_Object, &kqueue_event_Type);
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1994 if (ch == NULL) {
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1995 goto error;
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1996 }
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1997 ch->e = evl[i];
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1998 PyList_SET_ITEM(result, i, (PyObject *)ch);
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1999 }
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2000 PyMem_Free(chl);
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2001 PyMem_Free(evl);
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2002 return result;
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2003
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2004 error:
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2005 PyMem_Free(chl);
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2006 PyMem_Free(evl);
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2007 Py_XDECREF(result);
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2008 Py_XDECREF(it);
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2009 return NULL;
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2010 }
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2011
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2012 PyDoc_STRVAR(kqueue_queue_control_doc,
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2013 "control(changelist, max_events[, timeout=None]) -> eventlist\n\
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2014 \n\
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2015 Calls the kernel kevent function.\n\
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2016 - changelist must be a list of kevent objects describing the changes\n\
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2017 to be made to the kernel's watch list or None.\n\
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2018 - max_events lets you specify the maximum number of events that the\n\
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2019 kernel will return.\n\
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2020 - timeout is the maximum time to wait in seconds, or else None,\n\
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2021 to wait forever. timeout accepts floats for smaller timeouts, too.");
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2022
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2023
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2024 static PyMethodDef kqueue_queue_methods[] = {
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2025 {"fromfd", (PyCFunction)kqueue_queue_fromfd,
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2026 METH_VARARGS | METH_CLASS, kqueue_queue_fromfd_doc},
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2027 {"close", (PyCFunction)kqueue_queue_close, METH_NOARGS,
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2028 kqueue_queue_close_doc},
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2029 {"fileno", (PyCFunction)kqueue_queue_fileno, METH_NOARGS,
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2030 kqueue_queue_fileno_doc},
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2031 {"control", (PyCFunction)kqueue_queue_control,
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2032 METH_VARARGS , kqueue_queue_control_doc},
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2033 {NULL, NULL},
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2034 };
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2035
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2036 static PyGetSetDef kqueue_queue_getsetlist[] = {
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2037 {"closed", (getter)kqueue_queue_get_closed, NULL,
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2038 "True if the kqueue handler is closed"},
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2039 {0},
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2040 };
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2041
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2042 PyDoc_STRVAR(kqueue_queue_doc,
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2043 "Kqueue syscall wrapper.\n\
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2044 \n\
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2045 For example, to start watching a socket for input:\n\
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2046 >>> kq = kqueue()\n\
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2047 >>> sock = socket()\n\
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2048 >>> sock.connect((host, port))\n\
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2049 >>> kq.control([kevent(sock, KQ_FILTER_WRITE, KQ_EV_ADD)], 0)\n\
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2050 \n\
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2051 To wait one second for it to become writeable:\n\
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2052 >>> kq.control(None, 1, 1000)\n\
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2053 \n\
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2054 To stop listening:\n\
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2055 >>> kq.control([kevent(sock, KQ_FILTER_WRITE, KQ_EV_DELETE)], 0)");
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2056
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2057 static PyTypeObject kqueue_queue_Type = {
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2058 PyVarObject_HEAD_INIT(NULL, 0)
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diff changeset
2059 "select.kqueue", /* tp_name */
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diff changeset
2060 sizeof(kqueue_queue_Object), /* tp_basicsize */
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diff changeset
2061 0, /* tp_itemsize */
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diff changeset
2062 (destructor)kqueue_queue_dealloc, /* tp_dealloc */
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diff changeset
2063 0, /* tp_print */
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diff changeset
2064 0, /* tp_getattr */
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diff changeset
2065 0, /* tp_setattr */
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diff changeset
2066 0, /* tp_reserved */
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diff changeset
2067 0, /* tp_repr */
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diff changeset
2068 0, /* tp_as_number */
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diff changeset
2069 0, /* tp_as_sequence */
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diff changeset
2070 0, /* tp_as_mapping */
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diff changeset
2071 0, /* tp_hash */
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diff changeset
2072 0, /* tp_call */
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diff changeset
2073 0, /* tp_str */
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diff changeset
2074 0, /* tp_getattro */
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parents: 60425
diff changeset
2075 0, /* tp_setattro */
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parents: 60425
diff changeset
2076 0, /* tp_as_buffer */
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diff changeset
2077 Py_TPFLAGS_DEFAULT, /* tp_flags */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2078 kqueue_queue_doc, /* tp_doc */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2079 0, /* tp_traverse */
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parents: 60425
diff changeset
2080 0, /* tp_clear */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2081 0, /* tp_richcompare */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2082 0, /* tp_weaklistoffset */
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
2083 0, /* tp_iter */
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diff changeset
2084 0, /* tp_iternext */
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diff changeset
2085 kqueue_queue_methods, /* tp_methods */
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
2086 0, /* tp_members */
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diff changeset
2087 kqueue_queue_getsetlist, /* tp_getset */
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diff changeset
2088 0, /* tp_base */
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diff changeset
2089 0, /* tp_dict */
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diff changeset
2090 0, /* tp_descr_get */
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
2091 0, /* tp_descr_set */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2092 0, /* tp_dictoffset */
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
2093 0, /* tp_init */
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
2094 0, /* tp_alloc */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2095 kqueue_queue_new, /* tp_new */
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diff changeset
2096 0, /* tp_free */
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parents: 44469
diff changeset
2097 };
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diff changeset
2098
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2099 #endif /* HAVE_KQUEUE */
73549
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2100
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2101
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2102
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2103
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2104
45996
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parents: 44469
diff changeset
2105 /* ************************************************************************ */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2106
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
2107 PyDoc_STRVAR(select_doc,
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2108 "select(rlist, wlist, xlist[, timeout]) -> (rlist, wlist, xlist)\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2109 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2110 Wait until one or more file descriptors are ready for some kind of I/O.\n\
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
2111 The first three arguments are sequences of file descriptors to be waited for:\n\
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2112 rlist -- wait until ready for reading\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2113 wlist -- wait until ready for writing\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2114 xlist -- wait for an ``exceptional condition''\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2115 If only one kind of condition is required, pass [] for the other lists.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2116 A file descriptor is either a socket or file object, or a small integer\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2117 gotten from a fileno() method call on one of those.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2118 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2119 The optional 4th argument specifies a timeout in seconds; it may be\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2120 a floating point number to specify fractions of seconds. If it is absent\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2121 or None, the call will never time out.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2122 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2123 The return value is a tuple of three lists corresponding to the first three\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2124 arguments; each contains the subset of the corresponding file descriptors\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2125 that are ready.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2126 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2127 *** IMPORTANT NOTICE ***\n\
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parents: 44469
diff changeset
2128 On Windows and OpenVMS, only sockets are supported; on Unix, all file\n\
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parents: 45996
diff changeset
2129 descriptors can be used.");
8570
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Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2130
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
2131 static PyMethodDef select_methods[] = {
61467
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parents: 60425
diff changeset
2132 {"select", select_select, METH_VARARGS, select_doc},
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parents: 44469
diff changeset
2133 #ifdef HAVE_POLL
61467
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diff changeset
2134 {"poll", select_poll, METH_NOARGS, poll_doc},
37935
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Ronald Oussoren <ronaldoussoren@mac.com>
parents: 36501
diff changeset
2135 #endif /* HAVE_POLL */
73549
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2136 #ifdef HAVE_SYS_DEVPOLL_H
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2137 {"devpoll", select_devpoll, METH_NOARGS, devpoll_doc},
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2138 #endif
61467
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parents: 60425
diff changeset
2139 {0, 0}, /* sentinel */
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
2140 };
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
2141
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
2142 PyDoc_STRVAR(module_doc,
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2143 "This module supports asynchronous I/O on multiple file descriptors.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2144 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
2145 *** IMPORTANT NOTICE ***\n\
39442
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Thomas Wouters <thomas@python.org>
parents: 38489
diff changeset
2146 On Windows and OpenVMS, only sockets are supported; on Unix, all file descriptors.");
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
2147
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
2148
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
2149 static struct PyModuleDef selectmodule = {
61467
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diff changeset
2150 PyModuleDef_HEAD_INIT,
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parents: 60425
diff changeset
2151 "select",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 60425
diff changeset
2152 module_doc,
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diff changeset
2153 -1,
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diff changeset
2154 select_methods,
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diff changeset
2155 NULL,
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parents: 60425
diff changeset
2156 NULL,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 60425
diff changeset
2157 NULL,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 60425
diff changeset
2158 NULL
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
2159 };
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
2160
73549
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2161
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2162
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2163
24363
979ff5d0ae07 Replace DL_IMPORT with PyMODINIT_FUNC and remove "/export:init..." link
Mark Hammond <mhammond@skippinet.com.au>
parents: 24283
diff changeset
2164 PyMODINIT_FUNC
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
2165 PyInit_select(void)
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
2166 {
61467
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diff changeset
2167 PyObject *m;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2168 m = PyModule_Create(&selectmodule);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 60425
diff changeset
2169 if (m == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 60425
diff changeset
2170 return NULL;
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
2171
72879
41a1de81ef2b PEP 3151 / issue #12555: reworking the OS and IO exception hierarchy.
Antoine Pitrou <solipsis@pitrou.net>
parents: 72116
diff changeset
2172 Py_INCREF(PyExc_OSError);
41a1de81ef2b PEP 3151 / issue #12555: reworking the OS and IO exception hierarchy.
Antoine Pitrou <solipsis@pitrou.net>
parents: 72116
diff changeset
2173 PyModule_AddObject(m, "error", PyExc_OSError);
37935
e3a8a8de355e Patch 1471761 - test for broken poll at runtime
Ronald Oussoren <ronaldoussoren@mac.com>
parents: 36501
diff changeset
2174
55179
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 55099
diff changeset
2175 #ifdef PIPE_BUF
65384
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R. David Murray <rdmurray@bitdance.com>
parents: 63589
diff changeset
2176 #ifdef HAVE_BROKEN_PIPE_BUF
3c4225bf87b4 #9862: On AIX PIPE_BUF is broken. Make it 512.
R. David Murray <rdmurray@bitdance.com>
parents: 63589
diff changeset
2177 #undef PIPE_BUF
3c4225bf87b4 #9862: On AIX PIPE_BUF is broken. Make it 512.
R. David Murray <rdmurray@bitdance.com>
parents: 63589
diff changeset
2178 #define PIPE_BUF 512
3c4225bf87b4 #9862: On AIX PIPE_BUF is broken. Make it 512.
R. David Murray <rdmurray@bitdance.com>
parents: 63589
diff changeset
2179 #endif
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diff changeset
2180 PyModule_AddIntConstant(m, "PIPE_BUF", PIPE_BUF);
55179
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 55099
diff changeset
2181 #endif
55099
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Gregory P. Smith <greg@mad-scientist.com>
parents: 51271
diff changeset
2182
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2183 #if defined(HAVE_POLL)
37935
e3a8a8de355e Patch 1471761 - test for broken poll at runtime
Ronald Oussoren <ronaldoussoren@mac.com>
parents: 36501
diff changeset
2184 #ifdef __APPLE__
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2185 if (select_have_broken_poll()) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2186 if (PyObject_DelAttrString(m, "poll") == -1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2187 PyErr_Clear();
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2188 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2189 } else {
37935
e3a8a8de355e Patch 1471761 - test for broken poll at runtime
Ronald Oussoren <ronaldoussoren@mac.com>
parents: 36501
diff changeset
2190 #else
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2191 {
37935
e3a8a8de355e Patch 1471761 - test for broken poll at runtime
Ronald Oussoren <ronaldoussoren@mac.com>
parents: 36501
diff changeset
2192 #endif
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2193 if (PyType_Ready(&poll_Type) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2194 return NULL;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2195 PyModule_AddIntConstant(m, "POLLIN", POLLIN);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2196 PyModule_AddIntConstant(m, "POLLPRI", POLLPRI);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2197 PyModule_AddIntConstant(m, "POLLOUT", POLLOUT);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2198 PyModule_AddIntConstant(m, "POLLERR", POLLERR);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2199 PyModule_AddIntConstant(m, "POLLHUP", POLLHUP);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2200 PyModule_AddIntConstant(m, "POLLNVAL", POLLNVAL);
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
2201
14918
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
2202 #ifdef POLLRDNORM
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2203 PyModule_AddIntConstant(m, "POLLRDNORM", POLLRDNORM);
14918
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
2204 #endif
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
2205 #ifdef POLLRDBAND
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2206 PyModule_AddIntConstant(m, "POLLRDBAND", POLLRDBAND);
14918
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
2207 #endif
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
2208 #ifdef POLLWRNORM
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2209 PyModule_AddIntConstant(m, "POLLWRNORM", POLLWRNORM);
14918
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
2210 #endif
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
2211 #ifdef POLLWRBAND
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2212 PyModule_AddIntConstant(m, "POLLWRBAND", POLLWRBAND);
14918
914ae7f9c64c Add #ifdef's for platforms that don't have the constants POLLRDNORM and
Andrew M. Kuchling <amk@amk.ca>
parents: 14869
diff changeset
2213 #endif
14182
c85a80db6845 Not every OS that support poll seems to support POLLMSG.
Sjoerd Mullender <sjoerd@acm.org>
parents: 14174
diff changeset
2214 #ifdef POLLMSG
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2215 PyModule_AddIntConstant(m, "POLLMSG", POLLMSG);
14182
c85a80db6845 Not every OS that support poll seems to support POLLMSG.
Sjoerd Mullender <sjoerd@acm.org>
parents: 14174
diff changeset
2216 #endif
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2217 }
37935
e3a8a8de355e Patch 1471761 - test for broken poll at runtime
Ronald Oussoren <ronaldoussoren@mac.com>
parents: 36501
diff changeset
2218 #endif /* HAVE_POLL */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2219
73549
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2220 #ifdef HAVE_SYS_DEVPOLL_H
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2221 if (PyType_Ready(&devpoll_Type) < 0)
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2222 return NULL;
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2223 #endif
8f7ab4bf7ad9 Issue #6397: Support '/dev/poll' polling objects in select module, under Solaris & derivatives.
Jesus Cea <jcea@jcea.es>
parents: 72879
diff changeset
2224
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2225 #ifdef HAVE_EPOLL
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2226 Py_TYPE(&pyEpoll_Type) = &PyType_Type;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2227 if (PyType_Ready(&pyEpoll_Type) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2228 return NULL;
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2229
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2230 Py_INCREF(&pyEpoll_Type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2231 PyModule_AddObject(m, "epoll", (PyObject *) &pyEpoll_Type);
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2232
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2233 PyModule_AddIntConstant(m, "EPOLLIN", EPOLLIN);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2234 PyModule_AddIntConstant(m, "EPOLLOUT", EPOLLOUT);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2235 PyModule_AddIntConstant(m, "EPOLLPRI", EPOLLPRI);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2236 PyModule_AddIntConstant(m, "EPOLLERR", EPOLLERR);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2237 PyModule_AddIntConstant(m, "EPOLLHUP", EPOLLHUP);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2238 PyModule_AddIntConstant(m, "EPOLLET", EPOLLET);
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2239 #ifdef EPOLLONESHOT
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2240 /* Kernel 2.6.2+ */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2241 PyModule_AddIntConstant(m, "EPOLLONESHOT", EPOLLONESHOT);
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2242 #endif
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2243 /* PyModule_AddIntConstant(m, "EPOLL_RDHUP", EPOLLRDHUP); */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2244 PyModule_AddIntConstant(m, "EPOLLRDNORM", EPOLLRDNORM);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2245 PyModule_AddIntConstant(m, "EPOLLRDBAND", EPOLLRDBAND);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2246 PyModule_AddIntConstant(m, "EPOLLWRNORM", EPOLLWRNORM);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2247 PyModule_AddIntConstant(m, "EPOLLWRBAND", EPOLLWRBAND);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2248 PyModule_AddIntConstant(m, "EPOLLMSG", EPOLLMSG);
74183
b30a94f7e053 add a flags parameter to select.epoll
Benjamin Peterson <benjamin@python.org>
parents: 73549
diff changeset
2249
74187
0f9276411dce fix for old kernels which don't have epoll_create1
Benjamin Peterson <benjamin@python.org>
parents: 74183
diff changeset
2250 #ifdef EPOLL_CLOEXEC
74183
b30a94f7e053 add a flags parameter to select.epoll
Benjamin Peterson <benjamin@python.org>
parents: 73549
diff changeset
2251 PyModule_AddIntConstant(m, "EPOLL_CLOEXEC", EPOLL_CLOEXEC);
74187
0f9276411dce fix for old kernels which don't have epoll_create1
Benjamin Peterson <benjamin@python.org>
parents: 74183
diff changeset
2252 #endif
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2253 #endif /* HAVE_EPOLL */
376b5cb8a014 Merged revisions 61687-61688,61696,61700,61704-61705,61707-61709,61711-61712,61714-61716,61718-61722 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2254
376b5cb8a014 Merged revisions 61687-61688,61696,61700,61704-61705,61707-61709,61711-61712,61714-61716,61718-61722 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2255 #ifdef HAVE_KQUEUE
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2256 kqueue_event_Type.tp_new = PyType_GenericNew;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2257 Py_TYPE(&kqueue_event_Type) = &PyType_Type;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2258 if(PyType_Ready(&kqueue_event_Type) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2259 return NULL;
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2260
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2261 Py_INCREF(&kqueue_event_Type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2262 PyModule_AddObject(m, "kevent", (PyObject *)&kqueue_event_Type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2263
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2264 Py_TYPE(&kqueue_queue_Type) = &PyType_Type;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2265 if(PyType_Ready(&kqueue_queue_Type) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2266 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2267 Py_INCREF(&kqueue_queue_Type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2268 PyModule_AddObject(m, "kqueue", (PyObject *)&kqueue_queue_Type);
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2269
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2270 /* event filters */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2271 PyModule_AddIntConstant(m, "KQ_FILTER_READ", EVFILT_READ);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2272 PyModule_AddIntConstant(m, "KQ_FILTER_WRITE", EVFILT_WRITE);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2273 PyModule_AddIntConstant(m, "KQ_FILTER_AIO", EVFILT_AIO);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2274 PyModule_AddIntConstant(m, "KQ_FILTER_VNODE", EVFILT_VNODE);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2275 PyModule_AddIntConstant(m, "KQ_FILTER_PROC", EVFILT_PROC);
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2276 #ifdef EVFILT_NETDEV
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2277 PyModule_AddIntConstant(m, "KQ_FILTER_NETDEV", EVFILT_NETDEV);
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2278 #endif
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2279 PyModule_AddIntConstant(m, "KQ_FILTER_SIGNAL", EVFILT_SIGNAL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2280 PyModule_AddIntConstant(m, "KQ_FILTER_TIMER", EVFILT_TIMER);
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2281
61467
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
2282 /* event flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2283 PyModule_AddIntConstant(m, "KQ_EV_ADD", EV_ADD);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2284 PyModule_AddIntConstant(m, "KQ_EV_DELETE", EV_DELETE);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2285 PyModule_AddIntConstant(m, "KQ_EV_ENABLE", EV_ENABLE);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2286 PyModule_AddIntConstant(m, "KQ_EV_DISABLE", EV_DISABLE);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2287 PyModule_AddIntConstant(m, "KQ_EV_ONESHOT", EV_ONESHOT);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60425
diff changeset
2288 PyModule_AddIntConstant(m, "KQ_EV_CLEAR", EV_CLEAR);
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
2289
61467
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diff changeset
2290 PyModule_AddIntConstant(m, "KQ_EV_SYSFLAGS", EV_SYSFLAGS);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
2291 PyModule_AddIntConstant(m, "KQ_EV_FLAG1", EV_FLAG1);
45996
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2292
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2293 PyModule_AddIntConstant(m, "KQ_EV_EOF", EV_EOF);
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2294 PyModule_AddIntConstant(m, "KQ_EV_ERROR", EV_ERROR);
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2295
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2296 /* READ WRITE filter flag */
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2297 PyModule_AddIntConstant(m, "KQ_NOTE_LOWAT", NOTE_LOWAT);
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2298
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2299 /* VNODE filter flags */
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2300 PyModule_AddIntConstant(m, "KQ_NOTE_DELETE", NOTE_DELETE);
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2301 PyModule_AddIntConstant(m, "KQ_NOTE_WRITE", NOTE_WRITE);
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2302 PyModule_AddIntConstant(m, "KQ_NOTE_EXTEND", NOTE_EXTEND);
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2303 PyModule_AddIntConstant(m, "KQ_NOTE_ATTRIB", NOTE_ATTRIB);
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2304 PyModule_AddIntConstant(m, "KQ_NOTE_LINK", NOTE_LINK);
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2305 PyModule_AddIntConstant(m, "KQ_NOTE_RENAME", NOTE_RENAME);
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2306 PyModule_AddIntConstant(m, "KQ_NOTE_REVOKE", NOTE_REVOKE);
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2307
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2308 /* PROC filter flags */
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2309 PyModule_AddIntConstant(m, "KQ_NOTE_EXIT", NOTE_EXIT);
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2310 PyModule_AddIntConstant(m, "KQ_NOTE_FORK", NOTE_FORK);
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2311 PyModule_AddIntConstant(m, "KQ_NOTE_EXEC", NOTE_EXEC);
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2312 PyModule_AddIntConstant(m, "KQ_NOTE_PCTRLMASK", NOTE_PCTRLMASK);
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2313 PyModule_AddIntConstant(m, "KQ_NOTE_PDATAMASK", NOTE_PDATAMASK);
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2314
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2315 PyModule_AddIntConstant(m, "KQ_NOTE_TRACK", NOTE_TRACK);
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2316 PyModule_AddIntConstant(m, "KQ_NOTE_CHILD", NOTE_CHILD);
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2317 PyModule_AddIntConstant(m, "KQ_NOTE_TRACKERR", NOTE_TRACKERR);
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2318
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2319 /* NETDEV filter flags */
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2320 #ifdef EVFILT_NETDEV
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2321 PyModule_AddIntConstant(m, "KQ_NOTE_LINKUP", NOTE_LINKUP);
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2322 PyModule_AddIntConstant(m, "KQ_NOTE_LINKDOWN", NOTE_LINKDOWN);
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2323 PyModule_AddIntConstant(m, "KQ_NOTE_LINKINV", NOTE_LINKINV);
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2324 #endif
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2325
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2326 #endif /* HAVE_KQUEUE */
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2327 return m;
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2328 }