Mercurial > cpython-lru_cache-weakref

annotate Modules/selectmodule.c @ 48416:fb02fedfe647

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Merged revisions 64677 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r64677 | brett.cannon | 2008-07-02 14:52:42 -0700 (Wed, 02 Jul 2008) | 2 lines Revert r64673 and instead just change the file encoding. ........
author Brett Cannon <bcannon@gmail.com>
date Wed, 02 Jul 2008 22:06:12 +0000
parents 7e56016a6565
children 887ee6bd9284
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 __APPLE__
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11 /* Perform runtime testing for a broken poll on OSX to make it easier
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12 * to use the same binary on multiple releases of the OS.
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13 */
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14 #undef HAVE_BROKEN_POLL
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15 #endif
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16
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17 /* Windows #defines FD_SETSIZE to 64 if FD_SETSIZE isn't already defined.
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18 64 is too small (too many people have bumped into that limit).
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19 Here we boost it.
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20 Users who want even more than the boosted limit should #define
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21 FD_SETSIZE higher before this; e.g., via compiler /D switch.
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22 */
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23 #if defined(MS_WINDOWS) && !defined(FD_SETSIZE)
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24 #define FD_SETSIZE 512
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25 #endif
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26
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27 #if defined(HAVE_POLL_H)
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28 #include <poll.h>
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29 #elif defined(HAVE_SYS_POLL_H)
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30 #include <sys/poll.h>
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31 #endif
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32
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33 #ifdef __sgi
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34 /* This is missing from unistd.h */
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35 extern void bzero(void *, int);
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36 #endif
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37
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38 #ifdef HAVE_SYS_TYPES_H
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39 #include <sys/types.h>
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40 #endif
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41
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42 #if defined(PYOS_OS2) && !defined(PYCC_GCC)
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43 #include <sys/time.h>
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44 #include <utils.h>
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45 #endif
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46
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47 #ifdef MS_WINDOWS
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48 # define WIN32_LEAN_AND_MEAN
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49 # include <winsock.h>
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50 #else
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51 # define SOCKET int
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52 # if defined(__VMS)
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53 # include <socket.h>
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54 # endif
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55 #endif
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56
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57 static PyObject *SelectError;
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58
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59 /* list of Python objects and their file descriptor */
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60 typedef struct {
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61 PyObject *obj; /* owned reference */
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62 SOCKET fd;
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63 int sentinel; /* -1 == sentinel */
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64 } pylist;
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65
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66 static void
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67 reap_obj(pylist fd2obj[FD_SETSIZE + 1])
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68 {
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69 int i;
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70 for (i = 0; i < FD_SETSIZE + 1 && fd2obj[i].sentinel >= 0; i++) {
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71 Py_XDECREF(fd2obj[i].obj);
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72 fd2obj[i].obj = NULL;
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73 }
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74 fd2obj[0].sentinel = -1;
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75 }
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76
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77
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78 /* returns -1 and sets the Python exception if an error occurred, otherwise
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79 returns a number >= 0
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80 */
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81 static int
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82 seq2set(PyObject *seq, fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
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83 {
4700
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84 int i;
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85 int max = -1;
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86 int index = 0;
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87 int len = -1;
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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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01687ce43708 fix subtle refcnt bug
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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
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
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98 len = PySequence_Fast_GET_SIZE(fast_seq);
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99
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100 for (i = 0; i < len; i++) {
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101 SOCKET v;
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102
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103 /* any intervening fileno() calls could decr this refcnt */
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104 if (!(o = PySequence_Fast_GET_ITEM(fast_seq, i)))
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105 return -1;
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106
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107 Py_INCREF(o);
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108 v = PyObject_AsFileDescriptor( o );
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109 if (v == -1) goto finally;
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110
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111 #if defined(_MSC_VER)
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112 max = 0; /* not used for Win32 */
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113 #else /* !_MSC_VER */
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114 if (v < 0 || v >= FD_SETSIZE) {
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115 PyErr_SetString(PyExc_ValueError,
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116 "filedescriptor out of range in select()");
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117 goto finally;
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118 }
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119 if (v > max)
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120 max = v;
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121 #endif /* _MSC_VER */
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122 FD_SET(v, set);
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123
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124 /* add object and its file descriptor to the list */
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125 if (index >= FD_SETSIZE) {
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126 PyErr_SetString(PyExc_ValueError,
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127 "too many file descriptors in select()");
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128 goto finally;
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129 }
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130 fd2obj[index].obj = o;
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131 fd2obj[index].fd = v;
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diff changeset
132 fd2obj[index].sentinel = 0;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
133 fd2obj[++index].sentinel = -1;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
134 }
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
135 Py_DECREF(fast_seq);
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
136 return max+1;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
137
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
138 finally:
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
139 Py_XDECREF(o);
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
140 Py_DECREF(fast_seq);
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
141 return -1;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
142 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
143
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
144 /* returns NULL and sets the Python exception if an error occurred */
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
145 static PyObject *
19328
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
146 set2list(fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
147 {
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
148 int i, j, count=0;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
149 PyObject *list, *o;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
150 SOCKET fd;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
151
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
152 for (j = 0; fd2obj[j].sentinel >= 0; j++) {
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
153 if (FD_ISSET(fd2obj[j].fd, set))
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
154 count++;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
155 }
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
156 list = PyList_New(count);
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
157 if (!list)
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
158 return NULL;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
159
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
160 i = 0;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
161 for (j = 0; fd2obj[j].sentinel >= 0; j++) {
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
162 fd = fd2obj[j].fd;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
163 if (FD_ISSET(fd, set)) {
3675
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
diff changeset
164 #ifndef _MSC_VER
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
165 if (fd > FD_SETSIZE) {
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
166 PyErr_SetString(PyExc_SystemError,
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
167 "filedescriptor out of range returned in select()");
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
168 goto finally;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
169 }
3675
d617de15774b Yet another pass at fd2obj -- this time for Windows
Guido van Rossum <guido@python.org>
parents: 2611
diff changeset
170 #endif
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
171 o = fd2obj[j].obj;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
172 fd2obj[j].obj = NULL;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
173 /* transfer ownership */
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
174 if (PyList_SetItem(list, i, o) < 0)
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
175 goto finally;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
176
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
177 i++;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
178 }
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
179 }
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
180 return list;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
181 finally:
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
182 Py_DECREF(list);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
183 return NULL;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
184 }
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
185
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
186 #undef SELECT_USES_HEAP
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
187 #if FD_SETSIZE > 1024
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
188 #define SELECT_USES_HEAP
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
189 #endif /* FD_SETSIZE > 1024 */
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
190
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
191 static PyObject *
13502
7348cceee8fa ANSI-fication
Peter Schneider-Kamp <nowonder@nowonder.de>
parents: 13256
diff changeset
192 select_select(PyObject *self, PyObject *args)
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
193 {
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
194 #ifdef SELECT_USES_HEAP
8616
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
195 pylist *rfd2obj, *wfd2obj, *efd2obj;
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
196 #else /* !SELECT_USES_HEAP */
19328
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
197 /* XXX: All this should probably be implemented as follows:
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
198 * - find the highest descriptor we're interested in
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
199 * - add one
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
200 * - that's the size
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
201 * See: Stevens, APitUE, $12.5.1
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
202 */
19328
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
203 pylist rfd2obj[FD_SETSIZE + 1];
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
204 pylist wfd2obj[FD_SETSIZE + 1];
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
205 pylist efd2obj[FD_SETSIZE + 1];
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
206 #endif /* SELECT_USES_HEAP */
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
207 PyObject *ifdlist, *ofdlist, *efdlist;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
208 PyObject *ret = NULL;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
209 PyObject *tout = Py_None;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
210 fd_set ifdset, ofdset, efdset;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
211 double timeout;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
212 struct timeval tv, *tvp;
13079
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
213 long seconds;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
214 int imax, omax, emax, max;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
215 int n;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
216
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
217 /* convert arguments */
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
218 if (!PyArg_UnpackTuple(args, "select", 3, 4,
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
219 &ifdlist, &ofdlist, &efdlist, &tout))
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
220 return NULL;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
221
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
222 if (tout == Py_None)
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
223 tvp = (struct timeval *)0;
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
224 else if (!PyNumber_Check(tout)) {
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
225 PyErr_SetString(PyExc_TypeError,
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
226 "timeout must be a float or None");
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
227 return NULL;
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
228 }
1390
cffe8d6b2f09 * selectmodule.c (select_select): timeout argument may be None with same
Guido van Rossum <guido@python.org>
parents: 1284
diff changeset
229 else {
26270
e270c0d41a05 Don't use PyNumber_Float() since it's is nearly useless. Instead, rely on
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 26153
diff changeset
230 timeout = PyFloat_AsDouble(tout);
e270c0d41a05 Don't use PyNumber_Float() since it's is nearly useless. Instead, rely on
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 26153
diff changeset
231 if (timeout == -1 && PyErr_Occurred())
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
232 return NULL;
13079
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
233 if (timeout > (double)LONG_MAX) {
19311
fc7617312182 Fixed a couple of minor formatting nits where lines were > 79 columns wide.
Barry Warsaw <barry@python.org>
parents: 19310
diff changeset
234 PyErr_SetString(PyExc_OverflowError,
fc7617312182 Fixed a couple of minor formatting nits where lines were > 79 columns wide.
Barry Warsaw <barry@python.org>
parents: 19310
diff changeset
235 "timeout period too long");
13079
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
236 return NULL;
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
237 }
185003d09e76 Trent Mick:
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
238 seconds = (long)timeout;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
239 timeout = timeout - (double)seconds;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
240 tv.tv_sec = seconds;
45996
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
241 tv.tv_usec = (long)(timeout * 1E6);
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
242 tvp = &tv;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
243 }
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
244
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
245
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
246 #ifdef SELECT_USES_HEAP
8616
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
247 /* Allocate memory for the lists */
19328
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
248 rfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
249 wfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
b41638a11e4e Stop adding 3 to FD_SETSIZE -- it makes no sense. If it turns out it
Tim Peters <tim.peters@gmail.com>
parents: 19311
diff changeset
250 efd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
8616
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
251 if (rfd2obj == NULL || wfd2obj == NULL || efd2obj == NULL) {
12576
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 11882
diff changeset
252 if (rfd2obj) PyMem_DEL(rfd2obj);
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 11882
diff changeset
253 if (wfd2obj) PyMem_DEL(wfd2obj);
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 11882
diff changeset
254 if (efd2obj) PyMem_DEL(efd2obj);
27815
cb1eeaeb74a0 SF bug 684667: Modules/selectmodule.c returns NULL without exception set.
Tim Peters <tim.peters@gmail.com>
parents: 26270
diff changeset
255 return PyErr_NoMemory();
8616
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
256 }
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
257 #endif /* SELECT_USES_HEAP */
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
258 /* Convert sequences to fd_sets, and get maximum fd number
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
259 * propagates the Python exception set in seq2set()
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
260 */
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
261 rfd2obj[0].sentinel = -1;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
262 wfd2obj[0].sentinel = -1;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
263 efd2obj[0].sentinel = -1;
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
264 if ((imax=seq2set(ifdlist, &ifdset, rfd2obj)) < 0)
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
265 goto finally;
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
266 if ((omax=seq2set(ofdlist, &ofdset, wfd2obj)) < 0)
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
267 goto finally;
30402
a430be683a7a select.select() now accepts a sequence (as defined by PySequence_Fast()) for
Brett Cannon <bcannon@gmail.com>
parents: 27815
diff changeset
268 if ((emax=seq2set(efdlist, &efdset, efd2obj)) < 0)
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
269 goto finally;
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
270 max = imax;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
271 if (omax > max) max = omax;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
272 if (emax > max) max = emax;
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
273
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
274 Py_BEGIN_ALLOW_THREADS
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
275 n = select(max, &ifdset, &ofdset, &efdset, tvp);
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
276 Py_END_ALLOW_THREADS
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
277
25399
97424b99df91 On Windows, call WSAGetLastError() to retrieve the error number.
Thomas Heller <theller@ctypes.org>
parents: 24408
diff changeset
278 #ifdef MS_WINDOWS
97424b99df91 On Windows, call WSAGetLastError() to retrieve the error number.
Thomas Heller <theller@ctypes.org>
parents: 24408
diff changeset
279 if (n == SOCKET_ERROR) {
97424b99df91 On Windows, call WSAGetLastError() to retrieve the error number.
Thomas Heller <theller@ctypes.org>
parents: 24408
diff changeset
280 PyErr_SetExcFromWindowsErr(SelectError, WSAGetLastError());
97424b99df91 On Windows, call WSAGetLastError() to retrieve the error number.
Thomas Heller <theller@ctypes.org>
parents: 24408
diff changeset
281 }
97424b99df91 On Windows, call WSAGetLastError() to retrieve the error number.
Thomas Heller <theller@ctypes.org>
parents: 24408
diff changeset
282 #else
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
283 if (n < 0) {
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
284 PyErr_SetFromErrno(SelectError);
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
285 }
25399
97424b99df91 On Windows, call WSAGetLastError() to retrieve the error number.
Thomas Heller <theller@ctypes.org>
parents: 24408
diff changeset
286 #endif
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
287 else if (n == 0) {
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
288 /* optimization */
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
289 ifdlist = PyList_New(0);
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
290 if (ifdlist) {
30683
3b59fa5d25b1 Simplify and speedup uses of Py_BuildValue():
Raymond Hettinger <python@rcn.com>
parents: 30402
diff changeset
291 ret = PyTuple_Pack(3, ifdlist, ifdlist, ifdlist);
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
292 Py_DECREF(ifdlist);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
293 }
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
294 }
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
295 else {
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
296 /* any of these three calls can raise an exception. it's more
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
297 convenient to test for this after all three calls... but
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
298 is that acceptable?
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
299 */
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
300 ifdlist = set2list(&ifdset, rfd2obj);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
301 ofdlist = set2list(&ofdset, wfd2obj);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
302 efdlist = set2list(&efdset, efd2obj);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
303 if (PyErr_Occurred())
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
304 ret = NULL;
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
305 else
30683
3b59fa5d25b1 Simplify and speedup uses of Py_BuildValue():
Raymond Hettinger <python@rcn.com>
parents: 30402
diff changeset
306 ret = PyTuple_Pack(3, ifdlist, ofdlist, efdlist);
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
307
4700
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
308 Py_DECREF(ifdlist);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
309 Py_DECREF(ofdlist);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
310 Py_DECREF(efdlist);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
311 }
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
312
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
313 finally:
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
314 reap_obj(rfd2obj);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
315 reap_obj(wfd2obj);
825038d98ab6 Reworked to eliminate all potential memory problems, including
Barry Warsaw <barry@python.org>
parents: 4692
diff changeset
316 reap_obj(efd2obj);
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
317 #ifdef SELECT_USES_HEAP
8616
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
318 PyMem_DEL(rfd2obj);
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
319 PyMem_DEL(wfd2obj);
2417f17fa3e5 On Windows, put the select file descriptor arrays on the heap.
Guido van Rossum <guido@python.org>
parents: 8570
diff changeset
320 PyMem_DEL(efd2obj);
19310
6cb9f538dce4 select_select(): Closing bug #448351 the easy way, i.e. by changing
Barry Warsaw <barry@python.org>
parents: 18754
diff changeset
321 #endif /* SELECT_USES_HEAP */
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
322 return ret;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
323 }
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
324
31761
f4a4ac7331ec Added configure check for broken poll() on some unix systems (MacOS X 10.3)
Nicholas Bastin <nick.bastin@gmail.com>
parents: 30683
diff changeset
325 #if defined(HAVE_POLL) && !defined(HAVE_BROKEN_POLL)
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
326 /*
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
327 * poll() support
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
328 */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
329
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
330 typedef struct {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
331 PyObject_HEAD
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
332 PyObject *dict;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
333 int ufd_uptodate;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
334 int ufd_len;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
335 struct pollfd *ufds;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
336 } pollObject;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
337
24280
1598a1e473e2 staticforward bites the dust.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 23832
diff changeset
338 static PyTypeObject poll_Type;
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
339
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
340 /* Update the malloc'ed array of pollfds to match the dictionary
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
341 contained within a pollObject. Return 1 on success, 0 on an error.
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
342 */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
343
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
344 static int
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
345 update_ufd_array(pollObject *self)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
346 {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36324
diff changeset
347 Py_ssize_t i, pos;
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
348 PyObject *key, *value;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
349
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
350 self->ufd_len = PyDict_Size(self->dict);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
351 PyMem_Resize(self->ufds, struct pollfd, self->ufd_len);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
352 if (self->ufds == NULL) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
353 PyErr_NoMemory();
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
354 return 0;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
355 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
356
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
357 i = pos = 0;
18754
3cd03a64c338 Make more warnings go away on the SGI compiler.
Fred Drake <fdrake@acm.org>
parents: 18603
diff changeset
358 while (PyDict_Next(self->dict, &pos, &key, &value)) {
44099
f324631462a2 Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents: 42645
diff changeset
359 self->ufds[i].fd = PyLong_AsLong(key);
f324631462a2 Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents: 42645
diff changeset
360 self->ufds[i].events = (short)PyLong_AsLong(value);
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
361 i++;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
362 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
363 self->ufd_uptodate = 1;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
364 return 1;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
365 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
366
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
367 PyDoc_STRVAR(poll_register_doc,
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
368 "register(fd [, eventmask] ) -> None\n\n\
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
369 Register a file descriptor with the polling object.\n\
19311
fc7617312182 Fixed a couple of minor formatting nits where lines were > 79 columns wide.
Barry Warsaw <barry@python.org>
parents: 19310
diff changeset
370 fd -- either an integer, or an object with a fileno() method returning an\n\
fc7617312182 Fixed a couple of minor formatting nits where lines were > 79 columns wide.
Barry Warsaw <barry@python.org>
parents: 19310
diff changeset
371 int.\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
372 events -- an optional bitmask describing the type of events to check for");
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
373
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
374 static PyObject *
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
375 poll_register(pollObject *self, PyObject *args)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
376 {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
377 PyObject *o, *key, *value;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
378 int fd, events = POLLIN | POLLPRI | POLLOUT;
20668
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
379 int err;
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
380
17873
1eb12259feea Add :method info to the PyArg_ParseTuple() format strings for poll objects.
Fred Drake <fdrake@acm.org>
parents: 16946
diff changeset
381 if (!PyArg_ParseTuple(args, "O|i:register", &o, &events)) {
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
382 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
383 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
384
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
385 fd = PyObject_AsFileDescriptor(o);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
386 if (fd == -1) return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
387
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
388 /* Add entry to the internal dictionary: the key is the
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
389 file descriptor, and the value is the event mask. */
44099
f324631462a2 Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents: 42645
diff changeset
390 key = PyLong_FromLong(fd);
20668
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
391 if (key == NULL)
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
392 return NULL;
44099
f324631462a2 Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents: 42645
diff changeset
393 value = PyLong_FromLong(events);
20668
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
394 if (value == NULL) {
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
395 Py_DECREF(key);
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
396 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
397 }
20668
3e9b85de447b Fix SF bug #474538: Memory (reference) leak in poller.register (Dave Brueck)
Guido van Rossum <guido@python.org>
parents: 20654
diff changeset
398 err = PyDict_SetItem(self->dict, key, value);
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399 Py_DECREF(key);
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400 Py_DECREF(value);
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401 if (err < 0)
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402 return NULL;
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403
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404 self->ufd_uptodate = 0;
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405
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406 Py_INCREF(Py_None);
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407 return Py_None;
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408 }
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409
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410 PyDoc_STRVAR(poll_modify_doc,
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411 "modify(fd, eventmask) -> None\n\n\
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412 Modify an already registered file descriptor.\n\
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413 fd -- either an integer, or an object with a fileno() method returning an\n\
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414 int.\n\
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415 events -- an optional bitmask describing the type of events to check for");
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416
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417 static PyObject *
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418 poll_modify(pollObject *self, PyObject *args)
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419 {
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420 PyObject *o, *key, *value;
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421 int fd, events;
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422 int err;
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423
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424 if (!PyArg_ParseTuple(args, "Oi:modify", &o, &events)) {
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425 return NULL;
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426 }
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427
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428 fd = PyObject_AsFileDescriptor(o);
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429 if (fd == -1) return NULL;
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430
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431 /* Modify registered fd */
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432 key = PyLong_FromLong(fd);
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433 if (key == NULL)
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434 return NULL;
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435 if (PyDict_GetItem(self->dict, key) == NULL) {
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436 errno = ENOENT;
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437 PyErr_SetFromErrno(PyExc_IOError);
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438 return NULL;
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439 }
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440 value = PyLong_FromLong(events);
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441 if (value == NULL) {
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442 Py_DECREF(key);
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443 return NULL;
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444 }
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445 err = PyDict_SetItem(self->dict, key, value);
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446 Py_DECREF(key);
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447 Py_DECREF(value);
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448 if (err < 0)
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449 return NULL;
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450
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451 self->ufd_uptodate = 0;
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452
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453 Py_INCREF(Py_None);
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454 return Py_None;
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455 }
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456
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457
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458 PyDoc_STRVAR(poll_unregister_doc,
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459 "unregister(fd) -> None\n\n\
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460 Remove a file descriptor being tracked by the polling object.");
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461
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462 static PyObject *
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463 poll_unregister(pollObject *self, PyObject *o)
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464 {
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465 PyObject *key;
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466 int fd;
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467
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468 fd = PyObject_AsFileDescriptor( o );
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469 if (fd == -1)
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470 return NULL;
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471
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472 /* Check whether the fd is already in the array */
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473 key = PyLong_FromLong(fd);
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474 if (key == NULL)
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475 return NULL;
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476
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477 if (PyDict_DelItem(self->dict, key) == -1) {
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478 Py_DECREF(key);
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479 /* This will simply raise the KeyError set by PyDict_DelItem
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480 if the file descriptor isn't registered. */
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481 return NULL;
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482 }
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483
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484 Py_DECREF(key);
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485 self->ufd_uptodate = 0;
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486
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487 Py_INCREF(Py_None);
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488 return Py_None;
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489 }
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490
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491 PyDoc_STRVAR(poll_poll_doc,
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492 "poll( [timeout] ) -> list of (fd, event) 2-tuples\n\n\
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493 Polls the set of registered file descriptors, returning a list containing \n\
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494 any descriptors that have events or errors to report.");
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495
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496 static PyObject *
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497 poll_poll(pollObject *self, PyObject *args)
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498 {
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499 PyObject *result_list = NULL, *tout = NULL;
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500 int timeout = 0, poll_result, i, j;
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501 PyObject *value = NULL, *num = NULL;
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502
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parents: 38453
diff changeset
503 if (!PyArg_UnpackTuple(args, "poll", 0, 1, &tout)) {
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
504 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
505 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
506
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
507 /* Check values for timeout */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
508 if (tout == NULL || tout == Py_None)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
509 timeout = -1;
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
510 else if (!PyNumber_Check(tout)) {
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
511 PyErr_SetString(PyExc_TypeError,
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
512 "timeout must be an integer or None");
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
513 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
514 }
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
515 else {
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
516 tout = PyNumber_Int(tout);
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
517 if (!tout)
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
518 return NULL;
44099
f324631462a2 Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents: 42645
diff changeset
519 timeout = PyLong_AsLong(tout);
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
520 Py_DECREF(tout);
35834
418a61ead11b Bug #1346533, select.poll() doesn't raise an error if timeout > sys.maxint
Neal Norwitz <nnorwitz@gmail.com>
parents: 33007
diff changeset
521 if (timeout == -1 && PyErr_Occurred())
418a61ead11b Bug #1346533, select.poll() doesn't raise an error if timeout > sys.maxint
Neal Norwitz <nnorwitz@gmail.com>
parents: 33007
diff changeset
522 return NULL;
24408
4de5c7e6231e SF patch #577031, remove PyArg_Parse() since it's deprecated
Neal Norwitz <nnorwitz@gmail.com>
parents: 24363
diff changeset
523 }
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
524
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
525 /* Ensure the ufd array is up to date */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
526 if (!self->ufd_uptodate)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
527 if (update_ufd_array(self) == 0)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
528 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
529
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
530 /* call poll() */
45996
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
531 Py_BEGIN_ALLOW_THREADS
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
532 poll_result = poll(self->ufds, self->ufd_len, timeout);
45996
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
533 Py_END_ALLOW_THREADS
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
534
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
535 if (poll_result < 0) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
536 PyErr_SetFromErrno(SelectError);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
537 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
538 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
539
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
540 /* build the result list */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
541
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
542 result_list = PyList_New(poll_result);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
543 if (!result_list)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
544 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
545 else {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
546 for (i = 0, j = 0; j < poll_result; j++) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
547 /* skip to the next fired descriptor */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
548 while (!self->ufds[i].revents) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
549 i++;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
550 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
551 /* if we hit a NULL return, set value to NULL
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
552 and break out of loop; code at end will
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
553 clean up result_list */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
554 value = PyTuple_New(2);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
555 if (value == NULL)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
556 goto error;
44099
f324631462a2 Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents: 42645
diff changeset
557 num = PyLong_FromLong(self->ufds[i].fd);
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
558 if (num == NULL) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
559 Py_DECREF(value);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
560 goto error;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
561 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
562 PyTuple_SET_ITEM(value, 0, num);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
563
33007
9fb2e30f26be [Bug #923315] Produce correct result on AIX
Andrew M. Kuchling <amk@amk.ca>
parents: 31761
diff changeset
564 /* The &0xffff is a workaround for AIX. 'revents'
9fb2e30f26be [Bug #923315] Produce correct result on AIX
Andrew M. Kuchling <amk@amk.ca>
parents: 31761
diff changeset
565 is a 16-bit short, and IBM assigned POLLNVAL
9fb2e30f26be [Bug #923315] Produce correct result on AIX
Andrew M. Kuchling <amk@amk.ca>
parents: 31761
diff changeset
566 to be 0x8000, so the conversion to int results
9fb2e30f26be [Bug #923315] Produce correct result on AIX
Andrew M. Kuchling <amk@amk.ca>
parents: 31761
diff changeset
567 in a negative number. See SF bug #923315. */
44099
f324631462a2 Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents: 42645
diff changeset
568 num = PyLong_FromLong(self->ufds[i].revents & 0xffff);
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
569 if (num == NULL) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
570 Py_DECREF(value);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
571 goto error;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
572 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
573 PyTuple_SET_ITEM(value, 1, num);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
574 if ((PyList_SetItem(result_list, j, value)) == -1) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
575 Py_DECREF(value);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
576 goto error;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
577 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
578 i++;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
579 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
580 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
581 return result_list;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
582
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
583 error:
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
584 Py_DECREF(result_list);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
585 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
586 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
587
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
588 static PyMethodDef poll_methods[] = {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
589 {"register", (PyCFunction)poll_register,
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
590 METH_VARARGS, poll_register_doc},
45996
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
591 {"modify", (PyCFunction)poll_modify,
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
592 METH_VARARGS, poll_modify_doc},
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
593 {"unregister", (PyCFunction)poll_unregister,
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
594 METH_O, poll_unregister_doc},
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
595 {"poll", (PyCFunction)poll_poll,
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
596 METH_VARARGS, poll_poll_doc},
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
597 {NULL, NULL} /* sentinel */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
598 };
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
599
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
600 static pollObject *
14277
984abd20eec2 Peter Schneider-Kamp <nowonder@nowonder.de>:
Fred Drake <fdrake@acm.org>
parents: 14182
diff changeset
601 newPollObject(void)
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
602 {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
603 pollObject *self;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
604 self = PyObject_New(pollObject, &poll_Type);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
605 if (self == NULL)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
606 return NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
607 /* ufd_uptodate is a Boolean, denoting whether the
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
608 array pointed to by ufds matches the contents of the dictionary. */
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
609 self->ufd_uptodate = 0;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
610 self->ufds = NULL;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
611 self->dict = PyDict_New();
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
612 if (self->dict == NULL) {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
613 Py_DECREF(self);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
614 return NULL;
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 return self;
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
617 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
618
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
619 static void
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
620 poll_dealloc(pollObject *self)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
621 {
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
622 if (self->ufds != NULL)
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
623 PyMem_DEL(self->ufds);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
624 Py_XDECREF(self->dict);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
625 PyObject_Del(self);
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
626 }
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
627
24283
c0a67a1cab09 Removed more stray instances of statichere, but left _sre.c alone.
Tim Peters <tim.peters@gmail.com>
parents: 24280
diff changeset
628 static PyTypeObject poll_Type = {
14174
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
629 /* The ob_type field must be initialized in the module init function
35b7989ba20c Add interface to poll() system call (SF patch #100852)
Andrew M. Kuchling <amk@amk.ca>
parents: 13761
diff changeset
630 * to be portable to Windows without using C++. */
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 39442
diff changeset
631 PyVarObject_HEAD_INIT(NULL, 0)
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Guido van Rossum <guido@python.org>
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632 "select.poll", /*tp_name*/
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633 sizeof(pollObject), /*tp_basicsize*/
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634 0, /*tp_itemsize*/
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635 /* methods */
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diff changeset
636 (destructor)poll_dealloc, /*tp_dealloc*/
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diff changeset
637 0, /*tp_print*/
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638 0, /*tp_getattr*/
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639 0, /*tp_setattr*/
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640 0, /*tp_compare*/
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641 0, /*tp_repr*/
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642 0, /*tp_as_number*/
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643 0, /*tp_as_sequence*/
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644 0, /*tp_as_mapping*/
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645 0, /*tp_hash*/
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646 0, /*tp_call*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
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diff changeset
647 0, /*tp_str*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
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648 0, /*tp_getattro*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
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diff changeset
649 0, /*tp_setattro*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
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650 0, /*tp_as_buffer*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
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651 Py_TPFLAGS_DEFAULT, /*tp_flags*/
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652 0, /*tp_doc*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
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diff changeset
653 0, /*tp_traverse*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47580
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654 0, /*tp_clear*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47580
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655 0, /*tp_richcompare*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
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656 0, /*tp_weaklistoffset*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
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657 0, /*tp_iter*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
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658 0, /*tp_iternext*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
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659 poll_methods, /*tp_methods*/
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Andrew M. Kuchling <amk@amk.ca>
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660 };
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Andrew M. Kuchling <amk@amk.ca>
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661
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
662 PyDoc_STRVAR(poll_doc,
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Andrew M. Kuchling <amk@amk.ca>
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diff changeset
663 "Returns a polling object, which supports registering and\n\
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Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
664 unregistering file descriptors, and then polling them for I/O events.");
14174
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Andrew M. Kuchling <amk@amk.ca>
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diff changeset
665
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666 static PyObject *
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Thomas Wouters <thomas@python.org>
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667 select_poll(PyObject *self, PyObject *unused)
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668 {
38669
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669 return (PyObject *)newPollObject();
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670 }
38453
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671
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diff changeset
672 #ifdef __APPLE__
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673 /*
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diff changeset
674 * On some systems poll() sets errno on invalid file descriptors. We test
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diff changeset
675 * for this at runtime because this bug may be fixed or introduced between
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676 * OS releases.
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677 */
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678 static int select_have_broken_poll(void)
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679 {
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680 int poll_test;
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681 int filedes[2];
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diff changeset
682
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683 struct pollfd poll_struct = { 0, POLLIN|POLLPRI|POLLOUT, 0 };
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684
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685 /* Create a file descriptor to make invalid */
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Thomas Wouters <thomas@python.org>
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686 if (pipe(filedes) < 0) {
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687 return 1;
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688 }
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689 poll_struct.fd = filedes[0];
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690 close(filedes[0]);
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diff changeset
691 close(filedes[1]);
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diff changeset
692 poll_test = poll(&poll_struct, 1, 0);
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diff changeset
693 if (poll_test < 0) {
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694 return 1;
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695 } else if (poll_test == 0 && poll_struct.revents != POLLNVAL) {
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696 return 1;
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697 }
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698 return 0;
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699 }
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700 #endif /* __APPLE__ */
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701
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Thomas Wouters <thomas@python.org>
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702 #endif /* HAVE_POLL */
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703
45996
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704 #ifdef HAVE_EPOLL
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705 /* **************************************************************************
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diff changeset
706 * epoll interface for Linux 2.6
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diff changeset
707 *
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708 * Written by Christian Heimes
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diff changeset
709 * Inspired by Twisted's _epoll.pyx and select.poll()
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diff changeset
710 */
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711
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diff changeset
712 #ifdef HAVE_SYS_EPOLL_H
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diff changeset
713 #include <sys/epoll.h>
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diff changeset
714 #endif
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diff changeset
715
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diff changeset
716 typedef struct {
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diff changeset
717 PyObject_HEAD
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718 SOCKET epfd; /* epoll control file descriptor */
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diff changeset
719 } pyEpoll_Object;
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720
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diff changeset
721 static PyTypeObject pyEpoll_Type;
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722 #define pyepoll_CHECK(op) (PyObject_TypeCheck((op), &pyEpoll_Type))
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diff changeset
723
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diff changeset
724 static PyObject *
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diff changeset
725 pyepoll_err_closed(void)
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726 {
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diff changeset
727 PyErr_SetString(PyExc_ValueError, "I/O operation on closed epoll fd");
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728 return NULL;
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diff changeset
729 }
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diff changeset
730
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diff changeset
731 static int
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732 pyepoll_internal_close(pyEpoll_Object *self)
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733 {
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734 int save_errno = 0;
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735 if (self->epfd >= 0) {
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736 int epfd = self->epfd;
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diff changeset
737 self->epfd = -1;
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738 Py_BEGIN_ALLOW_THREADS
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diff changeset
739 if (close(epfd) < 0)
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740 save_errno = errno;
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diff changeset
741 Py_END_ALLOW_THREADS
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742 }
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diff changeset
743 return save_errno;
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744 }
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diff changeset
745
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diff changeset
746 static PyObject *
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747 newPyEpoll_Object(PyTypeObject *type, int sizehint, SOCKET fd)
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748 {
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diff changeset
749 pyEpoll_Object *self;
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750
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751 if (sizehint == -1) {
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752 sizehint = FD_SETSIZE-1;
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753 }
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754 else if (sizehint < 1) {
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diff changeset
755 PyErr_Format(PyExc_ValueError,
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756 "sizehint must be greater zero, got %d",
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diff changeset
757 sizehint);
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758 return NULL;
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diff changeset
759 }
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diff changeset
760
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diff changeset
761 assert(type != NULL && type->tp_alloc != NULL);
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762 self = (pyEpoll_Object *) type->tp_alloc(type, 0);
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diff changeset
763 if (self == NULL)
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764 return NULL;
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765
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diff changeset
766 if (fd == -1) {
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diff changeset
767 Py_BEGIN_ALLOW_THREADS
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768 self->epfd = epoll_create(sizehint);
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769 Py_END_ALLOW_THREADS
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770 }
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771 else {
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772 self->epfd = fd;
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773 }
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774 if (self->epfd < 0) {
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775 Py_DECREF(self);
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776 PyErr_SetFromErrno(PyExc_IOError);
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777 return NULL;
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778 }
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diff changeset
779 return (PyObject *)self;
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780 }
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diff changeset
781
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diff changeset
782
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diff changeset
783 static PyObject *
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diff changeset
784 pyepoll_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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diff changeset
785 {
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diff changeset
786 int sizehint = -1;
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787 static char *kwlist[] = {"sizehint", NULL};
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788
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diff changeset
789 if (!PyArg_ParseTupleAndKeywords(args, kwds, "|i:epoll", kwlist,
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790 &sizehint))
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791 return NULL;
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792
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793 return newPyEpoll_Object(type, sizehint, -1);
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794 }
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diff changeset
795
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diff changeset
796
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diff changeset
797 static void
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798 pyepoll_dealloc(pyEpoll_Object *self)
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799 {
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800 (void)pyepoll_internal_close(self);
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801 Py_TYPE(self)->tp_free(self);
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diff changeset
802 }
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diff changeset
803
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diff changeset
804 static PyObject*
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805 pyepoll_close(pyEpoll_Object *self)
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806 {
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diff changeset
807 errno = pyepoll_internal_close(self);
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808 if (errno < 0) {
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809 PyErr_SetFromErrno(PyExc_IOError);
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810 return NULL;
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811 }
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diff changeset
812 Py_RETURN_NONE;
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813 }
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814
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diff changeset
815 PyDoc_STRVAR(pyepoll_close_doc,
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diff changeset
816 "close() -> None\n\
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diff changeset
817 \n\
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diff changeset
818 Close the epoll control file descriptor. Further operations on the epoll\n\
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819 object will raise an exception.");
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820
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821 static PyObject*
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822 pyepoll_get_closed(pyEpoll_Object *self)
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823 {
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824 if (self->epfd < 0)
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825 Py_RETURN_TRUE;
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diff changeset
826 else
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827 Py_RETURN_FALSE;
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828 }
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829
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830 static PyObject*
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831 pyepoll_fileno(pyEpoll_Object *self)
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832 {
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833 if (self->epfd < 0)
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834 return pyepoll_err_closed();
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835 return PyLong_FromLong(self->epfd);
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836 }
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837
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838 PyDoc_STRVAR(pyepoll_fileno_doc,
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839 "fileno() -> int\n\
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840 \n\
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841 Return the epoll control file descriptor.");
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842
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843 static PyObject*
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844 pyepoll_fromfd(PyObject *cls, PyObject *args)
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845 {
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846 SOCKET fd;
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847
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848 if (!PyArg_ParseTuple(args, "i:fromfd", &fd))
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849 return NULL;
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850
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851 return newPyEpoll_Object((PyTypeObject*)cls, -1, fd);
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852 }
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853
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854 PyDoc_STRVAR(pyepoll_fromfd_doc,
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855 "fromfd(fd) -> epoll\n\
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856 \n\
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857 Create an epoll object from a given control fd.");
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858
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859 static PyObject *
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860 pyepoll_internal_ctl(int epfd, int op, PyObject *pfd, unsigned int events)
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861 {
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862 struct epoll_event ev;
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863 int result;
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864 int fd;
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865
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866 if (epfd < 0)
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867 return pyepoll_err_closed();
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868
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869 fd = PyObject_AsFileDescriptor(pfd);
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870 if (fd == -1) {
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871 return NULL;
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872 }
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873
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874 switch(op) {
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875 case EPOLL_CTL_ADD:
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876 case EPOLL_CTL_MOD:
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877 ev.events = events;
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878 ev.data.fd = fd;
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879 Py_BEGIN_ALLOW_THREADS
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880 result = epoll_ctl(epfd, op, fd, &ev);
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881 Py_END_ALLOW_THREADS
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882 break;
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883 case EPOLL_CTL_DEL:
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884 /* In kernel versions before 2.6.9, the EPOLL_CTL_DEL
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885 * operation required a non-NULL pointer in event, even
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886 * though this argument is ignored. */
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887 Py_BEGIN_ALLOW_THREADS
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888 result = epoll_ctl(epfd, op, fd, &ev);
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889 if (errno == EBADF) {
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890 /* fd already closed */
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891 result = 0;
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892 errno = 0;
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893 }
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894 Py_END_ALLOW_THREADS
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895 break;
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896 default:
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897 result = -1;
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898 errno = EINVAL;
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899 }
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900
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901 if (result < 0) {
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902 PyErr_SetFromErrno(PyExc_IOError);
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903 return NULL;
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904 }
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905 Py_RETURN_NONE;
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906 }
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907
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908 static PyObject *
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909 pyepoll_register(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
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910 {
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911 PyObject *pfd;
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912 unsigned int events = EPOLLIN | EPOLLOUT | EPOLLPRI;
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913 static char *kwlist[] = {"fd", "eventmask", NULL};
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914
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915 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|I:register", kwlist,
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916 &pfd, &events)) {
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917 return NULL;
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918 }
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919
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920 return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_ADD, pfd, events);
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921 }
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922
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923 PyDoc_STRVAR(pyepoll_register_doc,
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924 "register(fd[, eventmask]) -> bool\n\
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925 \n\
46115
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926 Registers a new fd or modifies an already registered fd. register() returns\n\
45996
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927 True if a new fd was registered or False if the event mask for fd was modified.\n\
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928 fd is the target file descriptor of the operation.\n\
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929 events is a bit set composed of the various EPOLL constants; the default\n\
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930 is EPOLL_IN | EPOLL_OUT | EPOLL_PRI.\n\
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931 \n\
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932 The epoll interface supports all file descriptors that support poll.");
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933
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diff changeset
934 static PyObject *
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935 pyepoll_modify(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
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936 {
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937 PyObject *pfd;
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938 unsigned int events;
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939 static char *kwlist[] = {"fd", "eventmask", NULL};
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940
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941 if (!PyArg_ParseTupleAndKeywords(args, kwds, "OI:modify", kwlist,
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942 &pfd, &events)) {
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943 return NULL;
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944 }
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945
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946 return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_MOD, pfd, events);
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947 }
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948
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diff changeset
949 PyDoc_STRVAR(pyepoll_modify_doc,
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950 "modify(fd, eventmask) -> None\n\
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951 \n\
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952 fd is the target file descriptor of the operation\n\
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953 events is a bit set composed of the various EPOLL constants");
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954
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955 static PyObject *
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956 pyepoll_unregister(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
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957 {
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958 PyObject *pfd;
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959 static char *kwlist[] = {"fd", NULL};
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960
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961 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O:unregister", kwlist,
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962 &pfd)) {
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963 return NULL;
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964 }
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965
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966 return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_DEL, pfd, 0);
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967 }
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968
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969 PyDoc_STRVAR(pyepoll_unregister_doc,
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970 "unregister(fd) -> None\n\
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971 \n\
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972 fd is the target file descriptor of the operation.");
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973
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diff changeset
974 static PyObject *
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975 pyepoll_poll(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
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976 {
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977 double dtimeout = -1.;
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978 int timeout;
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979 int maxevents = -1;
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980 int nfds, i;
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981 PyObject *elist = NULL, *etuple = NULL;
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982 struct epoll_event *evs = NULL;
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983 static char *kwlist[] = {"timeout", "maxevents", NULL};
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984
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985 if (self->epfd < 0)
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986 return pyepoll_err_closed();
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987
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988 if (!PyArg_ParseTupleAndKeywords(args, kwds, "|di:poll", kwlist,
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989 &dtimeout, &maxevents)) {
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990 return NULL;
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991 }
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992
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993 if (dtimeout < 0) {
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994 timeout = -1;
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995 }
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996 else if (dtimeout * 1000.0 > INT_MAX) {
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997 PyErr_SetString(PyExc_OverflowError,
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998 "timeout is too large");
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999 return NULL;
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1000 }
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1001 else {
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1002 timeout = (int)(dtimeout * 1000.0);
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1003 }
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1004
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1005 if (maxevents == -1) {
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1006 maxevents = FD_SETSIZE-1;
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1007 }
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1008 else if (maxevents < 1) {
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1009 PyErr_Format(PyExc_ValueError,
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1010 "maxevents must be greater than 0, got %d",
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1011 maxevents);
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1012 return NULL;
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1013 }
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1014
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1015 evs = PyMem_New(struct epoll_event, maxevents);
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1016 if (evs == NULL) {
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1017 Py_DECREF(self);
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1018 PyErr_NoMemory();
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1019 return NULL;
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1020 }
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1021
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1022 Py_BEGIN_ALLOW_THREADS
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1023 nfds = epoll_wait(self->epfd, evs, maxevents, timeout);
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1024 Py_END_ALLOW_THREADS
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1025 if (nfds < 0) {
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1026 PyErr_SetFromErrno(PyExc_IOError);
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1027 goto error;
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1028 }
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1029
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1030 elist = PyList_New(nfds);
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1031 if (elist == NULL) {
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1032 goto error;
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1033 }
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1034
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1035 for (i = 0; i < nfds; i++) {
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1036 etuple = Py_BuildValue("iI", evs[i].data.fd, evs[i].events);
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1037 if (etuple == NULL) {
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1038 Py_CLEAR(elist);
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1039 goto error;
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1040 }
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1041 PyList_SET_ITEM(elist, i, etuple);
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1042 }
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1043
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1044 error:
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1045 PyMem_Free(evs);
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1046 return elist;
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1047 }
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1048
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1049 PyDoc_STRVAR(pyepoll_poll_doc,
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1050 "poll([timeout=-1[, maxevents=-1]]) -> [(fd, events), (...)]\n\
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1051 \n\
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1052 Wait for events on the epoll file descriptor for a maximum time of timeout\n\
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1053 in seconds (as float). -1 makes poll wait indefinitely.\n\
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1054 Up to maxevents are returned to the caller.");
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1055
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1056 static PyMethodDef pyepoll_methods[] = {
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1057 {"fromfd", (PyCFunction)pyepoll_fromfd,
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1058 METH_VARARGS | METH_CLASS, pyepoll_fromfd_doc},
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1059 {"close", (PyCFunction)pyepoll_close, METH_NOARGS,
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1060 pyepoll_close_doc},
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1061 {"fileno", (PyCFunction)pyepoll_fileno, METH_NOARGS,
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1062 pyepoll_fileno_doc},
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1063 {"modify", (PyCFunction)pyepoll_modify,
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1064 METH_VARARGS | METH_KEYWORDS, pyepoll_modify_doc},
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1065 {"register", (PyCFunction)pyepoll_register,
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1066 METH_VARARGS | METH_KEYWORDS, pyepoll_register_doc},
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1067 {"unregister", (PyCFunction)pyepoll_unregister,
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1068 METH_VARARGS | METH_KEYWORDS, pyepoll_unregister_doc},
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1069 {"poll", (PyCFunction)pyepoll_poll,
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1070 METH_VARARGS | METH_KEYWORDS, pyepoll_poll_doc},
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1071 {NULL, NULL},
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1072 };
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1073
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1074 static PyGetSetDef pyepoll_getsetlist[] = {
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1075 {"closed", (getter)pyepoll_get_closed, NULL,
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1076 "True if the epoll handler is closed"},
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1077 {0},
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1078 };
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1079
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1080 PyDoc_STRVAR(pyepoll_doc,
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1081 "select.epoll([sizehint=-1])\n\
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1082 \n\
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1083 Returns an epolling object\n\
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1084 \n\
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1085 sizehint must be a positive integer or -1 for the default size. The\n\
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1086 sizehint is used to optimize internal data structures. It doesn't limit\n\
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1087 the maximum number of monitored events.");
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1088
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1089 static PyTypeObject pyEpoll_Type = {
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1090 PyVarObject_HEAD_INIT(NULL, 0)
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1091 "select.epoll", /* tp_name */
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1092 sizeof(pyEpoll_Object), /* tp_basicsize */
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1093 0, /* tp_itemsize */
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1094 (destructor)pyepoll_dealloc, /* tp_dealloc */
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1095 0, /* tp_print */
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1096 0, /* tp_getattr */
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1097 0, /* tp_setattr */
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1098 0, /* tp_compare */
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1099 0, /* tp_repr */
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1100 0, /* tp_as_number */
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1101 0, /* tp_as_sequence */
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1102 0, /* tp_as_mapping */
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1103 0, /* tp_hash */
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1104 0, /* tp_call */
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1105 0, /* tp_str */
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1106 PyObject_GenericGetAttr, /* tp_getattro */
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1107 0, /* tp_setattro */
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1108 0, /* tp_as_buffer */
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1109 Py_TPFLAGS_DEFAULT, /* tp_flags */
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1110 pyepoll_doc, /* tp_doc */
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1111 0, /* tp_traverse */
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1112 0, /* tp_clear */
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1113 0, /* tp_richcompare */
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1114 0, /* tp_weaklistoffset */
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1115 0, /* tp_iter */
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1116 0, /* tp_iternext */
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1117 pyepoll_methods, /* tp_methods */
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1118 0, /* tp_members */
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1119 pyepoll_getsetlist, /* tp_getset */
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1120 0, /* tp_base */
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1121 0, /* tp_dict */
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1122 0, /* tp_descr_get */
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1123 0, /* tp_descr_set */
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1124 0, /* tp_dictoffset */
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1125 0, /* tp_init */
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1126 0, /* tp_alloc */
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1127 pyepoll_new, /* tp_new */
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1128 0, /* tp_free */
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1129 };
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1130
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1131 #endif /* HAVE_EPOLL */
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1132
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1133 #ifdef HAVE_KQUEUE
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1134 /* **************************************************************************
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1135 * kqueue interface for BSD
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1136 *
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1137 * Copyright (c) 2000 Doug White, 2006 James Knight, 2007 Christian Heimes
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1138 * All rights reserved.
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1139 *
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1140 * Redistribution and use in source and binary forms, with or without
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1141 * modification, are permitted provided that the following conditions
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1142 * are met:
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1143 * 1. Redistributions of source code must retain the above copyright
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1144 * notice, this list of conditions and the following disclaimer.
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1145 * 2. Redistributions in binary form must reproduce the above copyright
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1146 * notice, this list of conditions and the following disclaimer in the
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1147 * documentation and/or other materials provided with the distribution.
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1148 *
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1149 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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1150 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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1151 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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1152 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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1153 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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1154 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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1155 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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1156 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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1157 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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1158 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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1159 * SUCH DAMAGE.
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1160 */
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1161
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1162 #ifdef HAVE_SYS_EVENT_H
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1163 #include <sys/event.h>
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1164 #endif
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1165
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1166 PyDoc_STRVAR(kqueue_event_doc,
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1167 "kevent(ident, filter=KQ_FILTER_READ, flags=KQ_ADD, fflags=0, data=0, udata=0)\n\
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1168 \n\
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1169 This object is the equivalent of the struct kevent for the C API.\n\
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1170 \n\
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1171 See the kqueue manpage for more detailed information about the meaning\n\
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1172 of the arguments.\n\
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1173 \n\
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1174 One minor note: while you might hope that udata could store a\n\
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1175 reference to a python object, it cannot, because it is impossible to\n\
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1176 keep a proper reference count of the object once it's passed into the\n\
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1177 kernel. Therefore, I have restricted it to only storing an integer. I\n\
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1178 recommend ignoring it and simply using the 'ident' field to key off\n\
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1179 of. You could also set up a dictionary on the python side to store a\n\
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1180 udata->object mapping.");
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1181
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1182 typedef struct {
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1183 PyObject_HEAD
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1184 struct kevent e;
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1185 } kqueue_event_Object;
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1186
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1187 static PyTypeObject kqueue_event_Type;
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1188
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1189 #define kqueue_event_Check(op) (PyObject_TypeCheck((op), &kqueue_event_Type))
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1190
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1191 typedef struct {
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1192 PyObject_HEAD
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1193 SOCKET kqfd; /* kqueue control fd */
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1194 } kqueue_queue_Object;
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1195
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1196 static PyTypeObject kqueue_queue_Type;
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1197
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1198 #define kqueue_queue_Check(op) (PyObject_TypeCheck((op), &kqueue_queue_Type))
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1199
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1200 /* Unfortunately, we can't store python objects in udata, because
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1201 * kevents in the kernel can be removed without warning, which would
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1202 * forever lose the refcount on the object stored with it.
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1203 */
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1204
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1205 #define KQ_OFF(x) offsetof(kqueue_event_Object, x)
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1206 static struct PyMemberDef kqueue_event_members[] = {
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1207 {"ident", T_UINT, KQ_OFF(e.ident)},
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1208 {"filter", T_SHORT, KQ_OFF(e.filter)},
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1209 {"flags", T_USHORT, KQ_OFF(e.flags)},
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1210 {"fflags", T_UINT, KQ_OFF(e.fflags)},
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1211 {"data", T_INT, KQ_OFF(e.data)},
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1212 {"udata", T_INT, KQ_OFF(e.udata)},
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1213 {NULL} /* Sentinel */
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1214 };
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1215 #undef KQ_OFF
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1216
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1217 static PyObject *
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1218 kqueue_event_repr(kqueue_event_Object *s)
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1219 {
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1220 char buf[1024];
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1221 PyOS_snprintf(
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1222 buf, sizeof(buf),
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1223 "<select.kevent ident=%lu filter=%d flags=0x%x fflags=0x%x "
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1224 "data=0x%lx udata=%p>",
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1225 (unsigned long)(s->e.ident), s->e.filter, s->e.flags,
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1226 s->e.fflags, (long)(s->e.data), s->e.udata);
47301
23ab586c427a Renamed PyString to PyBytes
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1227 return PyBytes_FromString(buf);
45996
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1228 }
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1229
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1230 static int
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1231 kqueue_event_init(kqueue_event_Object *self, PyObject *args, PyObject *kwds)
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1232 {
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1233 PyObject *pfd;
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1234 static char *kwlist[] = {"ident", "filter", "flags", "fflags",
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1235 "data", "udata", NULL};
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1236
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1237 EV_SET(&(self->e), 0, EVFILT_READ, EV_ADD, 0, 0, 0); /* defaults */
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1238
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1239 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|hhiii:kevent", kwlist,
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1240 &pfd, &(self->e.filter), &(self->e.flags),
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1241 &(self->e.fflags), &(self->e.data), &(self->e.udata))) {
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1242 return -1;
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1243 }
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1244
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1245 self->e.ident = PyObject_AsFileDescriptor(pfd);
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1246 if (self->e.ident == -1) {
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1247 return -1;
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1248 }
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1249 return 0;
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1250 }
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1251
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diff changeset
1252 static PyObject *
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1253 kqueue_event_richcompare(kqueue_event_Object *s, kqueue_event_Object *o,
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diff changeset
1254 int op)
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1255 {
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diff changeset
1256 int result = 0;
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1257
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diff changeset
1258 if (!kqueue_event_Check(o)) {
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1259 if (op == Py_EQ || op == Py_NE) {
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1260 PyObject *res = op == Py_EQ ? Py_False : Py_True;
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1261 Py_INCREF(res);
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1262 return res;
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1263 }
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diff changeset
1264 PyErr_Format(PyExc_TypeError,
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diff changeset
1265 "can't compare %.200s to %.200s",
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diff changeset
1266 Py_TYPE(s)->tp_name, Py_TYPE(o)->tp_name);
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1267 return NULL;
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1268 }
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1269 if (((result = s->e.ident - o->e.ident) == 0) &&
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diff changeset
1270 ((result = s->e.filter - o->e.filter) == 0) &&
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diff changeset
1271 ((result = s->e.flags - o->e.flags) == 0) &&
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diff changeset
1272 ((result = s->e.fflags - o->e.fflags) == 0) &&
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diff changeset
1273 ((result = s->e.data - o->e.data) == 0) &&
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diff changeset
1274 ((result = s->e.udata - o->e.udata) == 0)
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diff changeset
1275 ) {
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diff changeset
1276 result = 0;
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1277 }
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1278
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diff changeset
1279 switch (op) {
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diff changeset
1280 case Py_EQ:
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1281 result = (result == 0);
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diff changeset
1282 break;
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1283 case Py_NE:
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diff changeset
1284 result = (result != 0);
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diff changeset
1285 break;
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diff changeset
1286 case Py_LE:
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1287 result = (result <= 0);
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1288 break;
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diff changeset
1289 case Py_GE:
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1290 result = (result >= 0);
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1291 break;
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diff changeset
1292 case Py_LT:
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1293 result = (result < 0);
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1294 break;
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diff changeset
1295 case Py_GT:
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1296 result = (result > 0);
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1297 break;
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1298 }
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diff changeset
1299 return PyBool_FromLong(result);
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1300 }
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1301
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diff changeset
1302 static PyTypeObject kqueue_event_Type = {
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diff changeset
1303 PyVarObject_HEAD_INIT(NULL, 0)
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1304 "select.kevent", /* tp_name */
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diff changeset
1305 sizeof(kqueue_event_Object), /* tp_basicsize */
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1306 0, /* tp_itemsize */
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1307 0, /* tp_dealloc */
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1308 0, /* tp_print */
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1309 0, /* tp_getattr */
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1310 0, /* tp_setattr */
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1311 0, /* tp_compare */
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1312 (reprfunc)kqueue_event_repr, /* tp_repr */
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1313 0, /* tp_as_number */
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1314 0, /* tp_as_sequence */
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1315 0, /* tp_as_mapping */
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1316 0, /* tp_hash */
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1317 0, /* tp_call */
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1318 0, /* tp_str */
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1319 0, /* tp_getattro */
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1320 0, /* tp_setattro */
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1321 0, /* tp_as_buffer */
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1322 Py_TPFLAGS_DEFAULT, /* tp_flags */
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1323 kqueue_event_doc, /* tp_doc */
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1324 0, /* tp_traverse */
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1325 0, /* tp_clear */
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1326 (richcmpfunc)kqueue_event_richcompare, /* tp_richcompare */
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1327 0, /* tp_weaklistoffset */
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1328 0, /* tp_iter */
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1329 0, /* tp_iternext */
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1330 0, /* tp_methods */
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1331 kqueue_event_members, /* tp_members */
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1332 0, /* tp_getset */
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1333 0, /* tp_base */
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1334 0, /* tp_dict */
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1335 0, /* tp_descr_get */
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1336 0, /* tp_descr_set */
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1337 0, /* tp_dictoffset */
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1338 (initproc)kqueue_event_init, /* tp_init */
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1339 0, /* tp_alloc */
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1340 0, /* tp_new */
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1341 0, /* tp_free */
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1342 };
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1343
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1344 static PyObject *
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1345 kqueue_queue_err_closed(void)
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1346 {
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1347 PyErr_SetString(PyExc_ValueError, "I/O operation on closed kqueue fd");
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1348 return NULL;
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1349 }
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1350
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1351 static int
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1352 kqueue_queue_internal_close(kqueue_queue_Object *self)
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1353 {
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1354 int save_errno = 0;
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1355 if (self->kqfd >= 0) {
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1356 int kqfd = self->kqfd;
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1357 self->kqfd = -1;
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1358 Py_BEGIN_ALLOW_THREADS
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1359 if (close(kqfd) < 0)
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1360 save_errno = errno;
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1361 Py_END_ALLOW_THREADS
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1362 }
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1363 return save_errno;
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1364 }
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1365
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1366 static PyObject *
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1367 newKqueue_Object(PyTypeObject *type, SOCKET fd)
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1368 {
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1369 kqueue_queue_Object *self;
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1370 assert(type != NULL && type->tp_alloc != NULL);
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1371 self = (kqueue_queue_Object *) type->tp_alloc(type, 0);
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1372 if (self == NULL) {
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1373 return NULL;
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1374 }
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1375
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1376 if (fd == -1) {
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1377 Py_BEGIN_ALLOW_THREADS
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1378 self->kqfd = kqueue();
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1379 Py_END_ALLOW_THREADS
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1380 }
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1381 else {
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1382 self->kqfd = fd;
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1383 }
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1384 if (self->kqfd < 0) {
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1385 Py_DECREF(self);
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1386 PyErr_SetFromErrno(PyExc_IOError);
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1387 return NULL;
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1388 }
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1389 return (PyObject *)self;
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1390 }
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1391
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1392 static PyObject *
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1393 kqueue_queue_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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1394 {
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1395
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1396 if ((args != NULL && PyObject_Size(args)) ||
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1397 (kwds != NULL && PyObject_Size(kwds))) {
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1398 PyErr_SetString(PyExc_ValueError,
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1399 "select.kqueue doesn't accept arguments");
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1400 return NULL;
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1401 }
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1402
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1403 return newKqueue_Object(type, -1);
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1404 }
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1405
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1406 static void
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1407 kqueue_queue_dealloc(kqueue_queue_Object *self)
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1408 {
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1409 kqueue_queue_internal_close(self);
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1410 Py_TYPE(self)->tp_free(self);
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1411 }
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1412
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1413 static PyObject*
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1414 kqueue_queue_close(kqueue_queue_Object *self)
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1415 {
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1416 errno = kqueue_queue_internal_close(self);
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1417 if (errno < 0) {
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1418 PyErr_SetFromErrno(PyExc_IOError);
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1419 return NULL;
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1420 }
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1421 Py_RETURN_NONE;
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1422 }
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1423
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1424 PyDoc_STRVAR(kqueue_queue_close_doc,
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1425 "close() -> None\n\
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1426 \n\
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1427 Close the kqueue control file descriptor. Further operations on the kqueue\n\
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1428 object will raise an exception.");
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1429
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1430 static PyObject*
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1431 kqueue_queue_get_closed(kqueue_queue_Object *self)
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1432 {
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1433 if (self->kqfd < 0)
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1434 Py_RETURN_TRUE;
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1435 else
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1436 Py_RETURN_FALSE;
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1437 }
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1438
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1439 static PyObject*
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1440 kqueue_queue_fileno(kqueue_queue_Object *self)
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1441 {
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1442 if (self->kqfd < 0)
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1443 return kqueue_queue_err_closed();
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1444 return PyLong_FromLong(self->kqfd);
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1445 }
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1446
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1447 PyDoc_STRVAR(kqueue_queue_fileno_doc,
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1448 "fileno() -> int\n\
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1449 \n\
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1450 Return the kqueue control file descriptor.");
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1451
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diff changeset
1452 static PyObject*
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1453 kqueue_queue_fromfd(PyObject *cls, PyObject *args)
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1454 {
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1455 SOCKET fd;
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1456
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1457 if (!PyArg_ParseTuple(args, "i:fromfd", &fd))
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1458 return NULL;
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1459
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1460 return newKqueue_Object((PyTypeObject*)cls, fd);
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1461 }
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1462
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1463 PyDoc_STRVAR(kqueue_queue_fromfd_doc,
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1464 "fromfd(fd) -> kqueue\n\
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1465 \n\
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1466 Create a kqueue object from a given control fd.");
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1467
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1468 static PyObject *
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1469 kqueue_queue_control(kqueue_queue_Object *self, PyObject *args)
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1470 {
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1471 int nevents = 0;
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1472 int gotevents = 0;
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1473 int nchanges = 0;
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1474 int i = 0;
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1475 PyObject *otimeout = NULL;
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1476 PyObject *ch = NULL;
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1477 PyObject *it = NULL, *ei = NULL;
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1478 PyObject *result = NULL;
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1479 struct kevent *evl = NULL;
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1480 struct kevent *chl = NULL;
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1481 struct timespec timeoutspec;
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1482 struct timespec *ptimeoutspec;
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1483
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1484 if (self->kqfd < 0)
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1485 return kqueue_queue_err_closed();
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1486
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1487 if (!PyArg_ParseTuple(args, "Oi|O:control", &ch, &nevents, &otimeout))
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1488 return NULL;
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1489
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1490 if (nevents < 0) {
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1491 PyErr_Format(PyExc_ValueError,
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1492 "Length of eventlist must be 0 or positive, got %d",
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1493 nchanges);
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1494 return NULL;
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1495 }
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1496
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1497 if (ch != NULL && ch != Py_None) {
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1498 it = PyObject_GetIter(ch);
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1499 if (it == NULL) {
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1500 PyErr_SetString(PyExc_TypeError,
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1501 "changelist is not iterable");
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1502 return NULL;
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1503 }
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1504 nchanges = PyObject_Size(ch);
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parents: 44469
diff changeset
1505 if (nchanges < 0) {
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parents: 44469
diff changeset
1506 return NULL;
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parents: 44469
diff changeset
1507 }
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parents: 44469
diff changeset
1508 }
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parents: 44469
diff changeset
1509
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parents: 44469
diff changeset
1510 if (otimeout == Py_None || otimeout == NULL) {
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parents: 44469
diff changeset
1511 ptimeoutspec = NULL;
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parents: 44469
diff changeset
1512 }
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parents: 44469
diff changeset
1513 else if (PyNumber_Check(otimeout)) {
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parents: 44469
diff changeset
1514 double timeout;
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1515 long seconds;
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parents: 44469
diff changeset
1516
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parents: 44469
diff changeset
1517 timeout = PyFloat_AsDouble(otimeout);
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parents: 44469
diff changeset
1518 if (timeout == -1 && PyErr_Occurred())
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parents: 44469
diff changeset
1519 return NULL;
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parents: 44469
diff changeset
1520 if (timeout > (double)LONG_MAX) {
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parents: 44469
diff changeset
1521 PyErr_SetString(PyExc_OverflowError,
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parents: 44469
diff changeset
1522 "timeout period too long");
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parents: 44469
diff changeset
1523 return NULL;
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parents: 44469
diff changeset
1524 }
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parents: 44469
diff changeset
1525 if (timeout < 0) {
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parents: 44469
diff changeset
1526 PyErr_SetString(PyExc_ValueError,
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parents: 44469
diff changeset
1527 "timeout must be positive or None");
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parents: 44469
diff changeset
1528 return NULL;
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parents: 44469
diff changeset
1529 }
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parents: 44469
diff changeset
1530
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parents: 44469
diff changeset
1531 seconds = (long)timeout;
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parents: 44469
diff changeset
1532 timeout = timeout - (double)seconds;
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parents: 44469
diff changeset
1533 timeoutspec.tv_sec = seconds;
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parents: 44469
diff changeset
1534 timeoutspec.tv_nsec = (long)(timeout * 1E9);
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parents: 44469
diff changeset
1535 ptimeoutspec = &timeoutspec;
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parents: 44469
diff changeset
1536 }
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parents: 44469
diff changeset
1537 else {
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parents: 44469
diff changeset
1538 PyErr_Format(PyExc_TypeError,
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parents: 44469
diff changeset
1539 "timeout argument must be an number "
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parents: 44469
diff changeset
1540 "or None, got %.200s",
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parents: 44469
diff changeset
1541 Py_TYPE(otimeout)->tp_name);
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parents: 44469
diff changeset
1542 return NULL;
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parents: 44469
diff changeset
1543 }
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parents: 44469
diff changeset
1544
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parents: 44469
diff changeset
1545 if (nchanges) {
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parents: 44469
diff changeset
1546 chl = PyMem_New(struct kevent, nchanges);
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parents: 44469
diff changeset
1547 if (chl == NULL) {
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parents: 44469
diff changeset
1548 PyErr_NoMemory();
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parents: 44469
diff changeset
1549 return NULL;
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parents: 44469
diff changeset
1550 }
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parents: 44469
diff changeset
1551 while ((ei = PyIter_Next(it)) != NULL) {
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parents: 44469
diff changeset
1552 if (!kqueue_event_Check(ei)) {
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parents: 44469
diff changeset
1553 Py_DECREF(ei);
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parents: 44469
diff changeset
1554 PyErr_SetString(PyExc_TypeError,
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parents: 44469
diff changeset
1555 "changelist must be an iterable of "
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parents: 44469
diff changeset
1556 "select.kevent objects");
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parents: 44469
diff changeset
1557 goto error;
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parents: 44469
diff changeset
1558 } else {
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parents: 44469
diff changeset
1559 chl[i] = ((kqueue_event_Object *)ei)->e;
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parents: 44469
diff changeset
1560 }
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parents: 44469
diff changeset
1561 Py_DECREF(ei);
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parents: 44469
diff changeset
1562 }
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parents: 44469
diff changeset
1563 }
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parents: 44469
diff changeset
1564 Py_CLEAR(it);
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parents: 44469
diff changeset
1565
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diff changeset
1566 /* event list */
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diff changeset
1567 if (nevents) {
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parents: 44469
diff changeset
1568 evl = PyMem_New(struct kevent, nevents);
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parents: 44469
diff changeset
1569 if (evl == NULL) {
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parents: 44469
diff changeset
1570 PyErr_NoMemory();
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parents: 44469
diff changeset
1571 return NULL;
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parents: 44469
diff changeset
1572 }
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diff changeset
1573 }
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diff changeset
1574
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parents: 44469
diff changeset
1575 Py_BEGIN_ALLOW_THREADS
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parents: 44469
diff changeset
1576 gotevents = kevent(self->kqfd, chl, nchanges,
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parents: 44469
diff changeset
1577 evl, nevents, ptimeoutspec);
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parents: 44469
diff changeset
1578 Py_END_ALLOW_THREADS
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parents: 44469
diff changeset
1579
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parents: 44469
diff changeset
1580 if (gotevents == -1) {
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parents: 44469
diff changeset
1581 PyErr_SetFromErrno(PyExc_OSError);
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parents: 44469
diff changeset
1582 goto error;
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parents: 44469
diff changeset
1583 }
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parents: 44469
diff changeset
1584
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parents: 44469
diff changeset
1585 result = PyList_New(gotevents);
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parents: 44469
diff changeset
1586 if (result == NULL) {
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parents: 44469
diff changeset
1587 goto error;
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parents: 44469
diff changeset
1588 }
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diff changeset
1589
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parents: 44469
diff changeset
1590 for (i=0; i < gotevents; i++) {
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1591 kqueue_event_Object *ch;
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1592
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1593 ch = PyObject_New(kqueue_event_Object, &kqueue_event_Type);
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1594 if (ch == NULL) {
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1595 goto error;
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1596 }
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1597 ch->e = evl[i];
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1598 PyList_SET_ITEM(result, i, (PyObject *)ch);
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1599 }
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1600 PyMem_Free(chl);
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1601 PyMem_Free(evl);
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1602 return result;
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1603
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1604 error:
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1605 PyMem_Free(chl);
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1606 PyMem_Free(evl);
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1607 Py_XDECREF(result);
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1608 Py_XDECREF(it);
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1609 return NULL;
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1610 }
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1611
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1612 PyDoc_STRVAR(kqueue_queue_control_doc,
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1613 "control(changelist, max_events=0[, timeout=None]) -> eventlist\n\
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1614 \n\
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1615 Calls the kernel kevent function.\n\
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1616 - changelist must be a list of kevent objects describing the changes\n\
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1617 to be made to the kernel's watch list or None.\n\
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1618 - max_events lets you specify the maximum number of events that the\n\
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1619 kernel will return.\n\
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1620 - timeout is the maximum time to wait in seconds, or else None,\n\
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1621 to wait forever. timeout accepts floats for smaller timeouts, too.");
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1622
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1623
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1624 static PyMethodDef kqueue_queue_methods[] = {
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1625 {"fromfd", (PyCFunction)kqueue_queue_fromfd,
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1626 METH_VARARGS | METH_CLASS, kqueue_queue_fromfd_doc},
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1627 {"close", (PyCFunction)kqueue_queue_close, METH_NOARGS,
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1628 kqueue_queue_close_doc},
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1629 {"fileno", (PyCFunction)kqueue_queue_fileno, METH_NOARGS,
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1630 kqueue_queue_fileno_doc},
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1631 {"control", (PyCFunction)kqueue_queue_control,
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1632 METH_VARARGS , kqueue_queue_control_doc},
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1633 {NULL, NULL},
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1634 };
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1635
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1636 static PyGetSetDef kqueue_queue_getsetlist[] = {
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1637 {"closed", (getter)kqueue_queue_get_closed, NULL,
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1638 "True if the kqueue handler is closed"},
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1639 {0},
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1640 };
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1641
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1642 PyDoc_STRVAR(kqueue_queue_doc,
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1643 "Kqueue syscall wrapper.\n\
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1644 \n\
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1645 For example, to start watching a socket for input:\n\
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1646 >>> kq = kqueue()\n\
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1647 >>> sock = socket()\n\
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1648 >>> sock.connect((host, port))\n\
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1649 >>> kq.control([kevent(sock, KQ_FILTER_WRITE, KQ_EV_ADD)], 0)\n\
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1650 \n\
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1651 To wait one second for it to become writeable:\n\
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1652 >>> kq.control(None, 1, 1000)\n\
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1653 \n\
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1654 To stop listening:\n\
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1655 >>> kq.control([kevent(sock, KQ_FILTER_WRITE, KQ_EV_DELETE)], 0)");
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1656
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1657 static PyTypeObject kqueue_queue_Type = {
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1658 PyVarObject_HEAD_INIT(NULL, 0)
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1659 "select.kqueue", /* tp_name */
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1660 sizeof(kqueue_queue_Object), /* tp_basicsize */
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1661 0, /* tp_itemsize */
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1662 (destructor)kqueue_queue_dealloc, /* tp_dealloc */
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1663 0, /* tp_print */
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1664 0, /* tp_getattr */
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1665 0, /* tp_setattr */
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1666 0, /* tp_compare */
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1667 0, /* tp_repr */
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1668 0, /* tp_as_number */
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1669 0, /* tp_as_sequence */
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1670 0, /* tp_as_mapping */
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1671 0, /* tp_hash */
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1672 0, /* tp_call */
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1673 0, /* tp_str */
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diff changeset
1674 0, /* tp_getattro */
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diff changeset
1675 0, /* tp_setattro */
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diff changeset
1676 0, /* tp_as_buffer */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1677 Py_TPFLAGS_DEFAULT, /* tp_flags */
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parents: 44469
diff changeset
1678 kqueue_queue_doc, /* tp_doc */
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parents: 44469
diff changeset
1679 0, /* tp_traverse */
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parents: 44469
diff changeset
1680 0, /* tp_clear */
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parents: 44469
diff changeset
1681 0, /* tp_richcompare */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1682 0, /* tp_weaklistoffset */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1683 0, /* tp_iter */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1684 0, /* tp_iternext */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1685 kqueue_queue_methods, /* tp_methods */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1686 0, /* tp_members */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1687 kqueue_queue_getsetlist, /* tp_getset */
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diff changeset
1688 0, /* tp_base */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1689 0, /* tp_dict */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1690 0, /* tp_descr_get */
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parents: 44469
diff changeset
1691 0, /* tp_descr_set */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1692 0, /* tp_dictoffset */
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parents: 44469
diff changeset
1693 0, /* tp_init */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1694 0, /* tp_alloc */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1695 kqueue_queue_new, /* tp_new */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1696 0, /* tp_free */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1697 };
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Christian Heimes <christian@cheimes.de>
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diff changeset
1698
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1699 #endif /* HAVE_KQUEUE */
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parents: 44469
diff changeset
1700 /* ************************************************************************ */
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1701
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
1702 PyDoc_STRVAR(select_doc,
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1703 "select(rlist, wlist, xlist[, timeout]) -> (rlist, wlist, xlist)\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1704 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1705 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
1706 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
1707 rlist -- wait until ready for reading\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1708 wlist -- wait until ready for writing\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1709 xlist -- wait for an ``exceptional condition''\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1710 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
1711 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
1712 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
1713 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1714 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
1715 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
1716 or None, the call will never time out.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1717 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1718 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
1719 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
1720 that are ready.\n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1721 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1722 *** IMPORTANT NOTICE ***\n\
45996
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
1723 On Windows and OpenVMS, only sockets are supported; on Unix, all file\n\
46115
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Christian Heimes <christian@cheimes.de>
parents: 45996
diff changeset
1724 descriptors can be used.");
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1725
4692
cb405b9696d4 Several changes... Guido *please* take a look!
Barry Warsaw <barry@python.org>
parents: 4621
diff changeset
1726 static PyMethodDef select_methods[] = {
45996
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parents: 44469
diff changeset
1727 {"select", select_select, METH_VARARGS, select_doc},
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parents: 44469
diff changeset
1728 #ifdef HAVE_POLL
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parents: 44469
diff changeset
1729 {"poll", select_poll, METH_NOARGS, poll_doc},
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1730 #endif /* HAVE_POLL */
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1731 {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
1732 };
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
parents:
diff changeset
1733
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23607
diff changeset
1734 PyDoc_STRVAR(module_doc,
8570
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1735 "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
1736 \n\
bd695de18ecf Added doc strings.
Guido van Rossum <guido@python.org>
parents: 6626
diff changeset
1737 *** IMPORTANT NOTICE ***\n\
39442
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 38669
diff changeset
1738 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
1739
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1740
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1741 static struct PyModuleDef selectmodule = {
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1742 PyModuleDef_HEAD_INIT,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1743 "select",
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1744 module_doc,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1745 -1,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1746 select_methods,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1747 NULL,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1748 NULL,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1749 NULL,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1750 NULL
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1751 };
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1752
24363
979ff5d0ae07 Replace DL_IMPORT with PyMODINIT_FUNC and remove "/export:init..." link
Mark Hammond <mhammond@skippinet.com.au>
parents: 24283
diff changeset
1753 PyMODINIT_FUNC
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1754 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
1755 {
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
1756 PyObject *m;
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1757 m = PyModule_Create(&selectmodule);
36324
1af7f719ed28 Check return result from Py_InitModule*(). This API can fail.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35834
diff changeset
1758 if (m == NULL)
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1759 return NULL;
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
1760
6367
2c29b8982643 Apply two changes, systematically:
Guido van Rossum <guido@python.org>
parents: 4734
diff changeset
1761 SelectError = PyErr_NewException("select.error", NULL, NULL);
22729
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
1762 Py_INCREF(SelectError);
cdff3c7c1a76 Use the PyModule_Add*() APIs instead of manipulating the module dict
Fred Drake <fdrake@acm.org>
parents: 22114
diff changeset
1763 PyModule_AddObject(m, "error", SelectError);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1764
45996
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Christian Heimes <christian@cheimes.de>
parents: 44469
diff changeset
1765 #if defined(HAVE_POLL)
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1766 #ifdef __APPLE__
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1767 if (select_have_broken_poll()) {
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1768 if (PyObject_DelAttrString(m, "poll") == -1) {
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1769 PyErr_Clear();
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1770 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1771 } else {
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1772 #else
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1773 {
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1774 #endif
48413
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47580
diff changeset
1775 if (PyType_Ready(&poll_Type) < 0)
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47580
diff changeset
1776 return NULL;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1777 PyModule_AddIntConstant(m, "POLLIN", POLLIN);
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1778 PyModule_AddIntConstant(m, "POLLPRI", POLLPRI);
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1779 PyModule_AddIntConstant(m, "POLLOUT", POLLOUT);
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1780 PyModule_AddIntConstant(m, "POLLERR", POLLERR);
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1781 PyModule_AddIntConstant(m, "POLLHUP", POLLHUP);
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents: 36501
diff changeset
1782 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
1783
14918
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1784 #ifdef POLLRDNORM
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1785 PyModule_AddIntConstant(m, "POLLRDNORM", POLLRDNORM);
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1786 #endif
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1787 #ifdef POLLRDBAND
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1788 PyModule_AddIntConstant(m, "POLLRDBAND", POLLRDBAND);
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1789 #endif
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1790 #ifdef POLLWRNORM
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1791 PyModule_AddIntConstant(m, "POLLWRNORM", POLLWRNORM);
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1792 #endif
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1793 #ifdef POLLWRBAND
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1794 PyModule_AddIntConstant(m, "POLLWRBAND", POLLWRBAND);
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1795 #endif
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Sjoerd Mullender <sjoerd@acm.org>
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1796 #ifdef POLLMSG
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1797 PyModule_AddIntConstant(m, "POLLMSG", POLLMSG);
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Sjoerd Mullender <sjoerd@acm.org>
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1798 #endif
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1799 }
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1800 #endif /* HAVE_POLL */
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1801
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1802 #ifdef HAVE_EPOLL
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1803 Py_TYPE(&pyEpoll_Type) = &PyType_Type;
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1804 if (PyType_Ready(&pyEpoll_Type) < 0)
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1805 return NULL;
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1806
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1807 Py_INCREF(&pyEpoll_Type);
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1808 PyModule_AddObject(m, "epoll", (PyObject *) &pyEpoll_Type);
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1809
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diff changeset
1810 PyModule_AddIntConstant(m, "EPOLLIN", EPOLLIN);
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1811 PyModule_AddIntConstant(m, "EPOLLOUT", EPOLLOUT);
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1812 PyModule_AddIntConstant(m, "EPOLLPRI", EPOLLPRI);
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diff changeset
1813 PyModule_AddIntConstant(m, "EPOLLERR", EPOLLERR);
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diff changeset
1814 PyModule_AddIntConstant(m, "EPOLLHUP", EPOLLHUP);
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diff changeset
1815 PyModule_AddIntConstant(m, "EPOLLET", EPOLLET);
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diff changeset
1816 #ifdef EPOLLONESHOT
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1817 /* Kernel 2.6.2+ */
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1818 PyModule_AddIntConstant(m, "EPOLLONESHOT", EPOLLONESHOT);
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1819 #endif
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1820 /* PyModule_AddIntConstant(m, "EPOLL_RDHUP", EPOLLRDHUP); */
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1821 PyModule_AddIntConstant(m, "EPOLLRDNORM", EPOLLRDNORM);
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1822 PyModule_AddIntConstant(m, "EPOLLRDBAND", EPOLLRDBAND);
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1823 PyModule_AddIntConstant(m, "EPOLLWRNORM", EPOLLWRNORM);
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1824 PyModule_AddIntConstant(m, "EPOLLWRBAND", EPOLLWRBAND);
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1825 PyModule_AddIntConstant(m, "EPOLLMSG", EPOLLMSG);
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1826 #endif /* HAVE_EPOLL */
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1827
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diff changeset
1828 #ifdef HAVE_KQUEUE
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1829 kqueue_event_Type.tp_new = PyType_GenericNew;
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1830 Py_TYPE(&kqueue_event_Type) = &PyType_Type;
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diff changeset
1831 if(PyType_Ready(&kqueue_event_Type) < 0)
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Martin v. Löwis <martin@v.loewis.de>
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1832 return NULL;
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1833
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1834 Py_INCREF(&kqueue_event_Type);
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1835 PyModule_AddObject(m, "kevent", (PyObject *)&kqueue_event_Type);
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1836
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1837 Py_TYPE(&kqueue_queue_Type) = &PyType_Type;
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1838 if(PyType_Ready(&kqueue_queue_Type) < 0)
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1839 return NULL;
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1840 Py_INCREF(&kqueue_queue_Type);
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1841 PyModule_AddObject(m, "kqueue", (PyObject *)&kqueue_queue_Type);
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1842
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diff changeset
1843 /* event filters */
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diff changeset
1844 PyModule_AddIntConstant(m, "KQ_FILTER_READ", EVFILT_READ);
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1845 PyModule_AddIntConstant(m, "KQ_FILTER_WRITE", EVFILT_WRITE);
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1846 PyModule_AddIntConstant(m, "KQ_FILTER_AIO", EVFILT_AIO);
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1847 PyModule_AddIntConstant(m, "KQ_FILTER_VNODE", EVFILT_VNODE);
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diff changeset
1848 PyModule_AddIntConstant(m, "KQ_FILTER_PROC", EVFILT_PROC);
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diff changeset
1849 #ifdef EVFILT_NETDEV
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1850 PyModule_AddIntConstant(m, "KQ_FILTER_NETDEV", EVFILT_NETDEV);
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1851 #endif
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1852 PyModule_AddIntConstant(m, "KQ_FILTER_SIGNAL", EVFILT_SIGNAL);
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1853 PyModule_AddIntConstant(m, "KQ_FILTER_TIMER", EVFILT_TIMER);
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1854
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diff changeset
1855 /* event flags */
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diff changeset
1856 PyModule_AddIntConstant(m, "KQ_EV_ADD", EV_ADD);
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diff changeset
1857 PyModule_AddIntConstant(m, "KQ_EV_DELETE", EV_DELETE);
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diff changeset
1858 PyModule_AddIntConstant(m, "KQ_EV_ENABLE", EV_ENABLE);
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diff changeset
1859 PyModule_AddIntConstant(m, "KQ_EV_DISABLE", EV_DISABLE);
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diff changeset
1860 PyModule_AddIntConstant(m, "KQ_EV_ONESHOT", EV_ONESHOT);
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1861 PyModule_AddIntConstant(m, "KQ_EV_CLEAR", EV_CLEAR);
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1862
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1863 PyModule_AddIntConstant(m, "KQ_EV_SYSFLAGS", EV_SYSFLAGS);
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1864 PyModule_AddIntConstant(m, "KQ_EV_FLAG1", EV_FLAG1);
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1865
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1866 PyModule_AddIntConstant(m, "KQ_EV_EOF", EV_EOF);
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1867 PyModule_AddIntConstant(m, "KQ_EV_ERROR", EV_ERROR);
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1868
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Christian Heimes <christian@cheimes.de>
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1869 /* READ WRITE filter flag */
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1870 PyModule_AddIntConstant(m, "KQ_NOTE_LOWAT", NOTE_LOWAT);
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1871
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1872 /* VNODE filter flags */
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1873 PyModule_AddIntConstant(m, "KQ_NOTE_DELETE", NOTE_DELETE);
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1874 PyModule_AddIntConstant(m, "KQ_NOTE_WRITE", NOTE_WRITE);
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Christian Heimes <christian@cheimes.de>
parents: 44469
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1875 PyModule_AddIntConstant(m, "KQ_NOTE_EXTEND", NOTE_EXTEND);
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Christian Heimes <christian@cheimes.de>
parents: 44469
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1876 PyModule_AddIntConstant(m, "KQ_NOTE_ATTRIB", NOTE_ATTRIB);
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1877 PyModule_AddIntConstant(m, "KQ_NOTE_LINK", NOTE_LINK);
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Christian Heimes <christian@cheimes.de>
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1878 PyModule_AddIntConstant(m, "KQ_NOTE_RENAME", NOTE_RENAME);
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Christian Heimes <christian@cheimes.de>
parents: 44469
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1879 PyModule_AddIntConstant(m, "KQ_NOTE_REVOKE", NOTE_REVOKE);
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Christian Heimes <christian@cheimes.de>
parents: 44469
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1880
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Christian Heimes <christian@cheimes.de>
parents: 44469
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1881 /* PROC filter flags */
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parents: 44469
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1882 PyModule_AddIntConstant(m, "KQ_NOTE_EXIT", NOTE_EXIT);
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Christian Heimes <christian@cheimes.de>
parents: 44469
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1883 PyModule_AddIntConstant(m, "KQ_NOTE_FORK", NOTE_FORK);
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1884 PyModule_AddIntConstant(m, "KQ_NOTE_EXEC", NOTE_EXEC);
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Christian Heimes <christian@cheimes.de>
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1885 PyModule_AddIntConstant(m, "KQ_NOTE_PCTRLMASK", NOTE_PCTRLMASK);
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Christian Heimes <christian@cheimes.de>
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1886 PyModule_AddIntConstant(m, "KQ_NOTE_PDATAMASK", NOTE_PDATAMASK);
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Christian Heimes <christian@cheimes.de>
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1887
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parents: 44469
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1888 PyModule_AddIntConstant(m, "KQ_NOTE_TRACK", NOTE_TRACK);
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1889 PyModule_AddIntConstant(m, "KQ_NOTE_CHILD", NOTE_CHILD);
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Christian Heimes <christian@cheimes.de>
parents: 44469
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1890 PyModule_AddIntConstant(m, "KQ_NOTE_TRACKERR", NOTE_TRACKERR);
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Christian Heimes <christian@cheimes.de>
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1891
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parents: 44469
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1892 /* NETDEV filter flags */
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1893 #ifdef EVFILT_NETDEV
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1894 PyModule_AddIntConstant(m, "KQ_NOTE_LINKUP", NOTE_LINKUP);
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1895 PyModule_AddIntConstant(m, "KQ_NOTE_LINKDOWN", NOTE_LINKDOWN);
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1896 PyModule_AddIntConstant(m, "KQ_NOTE_LINKINV", NOTE_LINKINV);
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1897 #endif
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1898
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diff changeset
1899 #endif /* HAVE_KQUEUE */
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47301
diff changeset
1900 return m;
902
a4793ae26682 Changes for new UNIX-specific built-in module 'select' and new header for
Guido van Rossum <guido@python.org>
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1901 }