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Mass ANSIfication of function definitions. Doesn't cover all 'extern' declarations yet, those come later.
author Thomas Wouters <thomas@python.org>
date Sat, 22 Jul 2000 18:47:25 +0000
parents 87ee82e5c56d
children 6f6f965c5e2d
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1 /***********************************************************
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2 Copyright (c) 2000, BeOpen.com.
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3 Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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4 Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
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5 All rights reserved.
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6
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7 See the file "Misc/COPYRIGHT" for information on usage and
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8 redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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9 ******************************************************************/
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10
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11 /* This code implemented by Mark Hammond (MHammond@skippinet.com.au) */
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12
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13 #include <windows.h>
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14 #include <limits.h>
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15 #include <pydebug.h>
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16
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17 long PyThread_get_thread_ident(void);
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18
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19 /*
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20 * Change all headers to pure ANSI as no one will use K&R style on an
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21 * NT
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22 */
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23
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24 /*
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25 * Initialization of the C package, should not be needed.
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26 */
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27 static void PyThread__init_thread(void)
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28 {
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29 }
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30
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31 /*
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32 * Thread support.
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33 */
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34 int PyThread_start_new_thread(void (*func)(void *), void *arg)
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35 {
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36 long rv;
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37 int success = 0;
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38
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39 dprintf(("%ld: PyThread_start_new_thread called\n", PyThread_get_thread_ident()));
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40 if (!initialized)
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41 PyThread_init_thread();
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42
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43 rv = _beginthread(func, 0, arg); /* use default stack size */
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44
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45 if (rv != -1) {
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46 success = 1;
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47 dprintf(("%ld: PyThread_start_new_thread succeeded:\n", PyThread_get_thread_ident()));
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48 }
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49
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50 return success;
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51 }
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52
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53 /*
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54 * Return the thread Id instead of an handle. The Id is said to uniquely identify the
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55 * thread in the system
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56 */
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57 long PyThread_get_thread_ident(void)
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58 {
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59 if (!initialized)
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60 PyThread_init_thread();
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61
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62 return GetCurrentThreadId();
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63 }
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64
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65 static void do_PyThread_exit_thread(int no_cleanup)
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66 {
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67 dprintf(("%ld: do_PyThread_exit_thread called\n", PyThread_get_thread_ident()));
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68 if (!initialized)
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69 if (no_cleanup)
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70 exit(0); /* XXX - was _exit()!! */
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71 else
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72 exit(0);
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73 _endthread();
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74 }
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75
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76 void PyThread_exit_thread(void)
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77 {
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78 do_PyThread_exit_thread(0);
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79 }
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80
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81 void PyThread__exit_thread(void)
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82 {
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83 do_PyThread_exit_thread(1);
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84 }
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85
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86 #ifndef NO_EXIT_PROG
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87 static void do_PyThread_exit_prog(int status, int no_cleanup)
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88 {
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89 dprintf(("PyThread_exit_prog(%d) called\n", status));
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90 if (!initialized)
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91 if (no_cleanup)
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92 _exit(status);
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93 else
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94 exit(status);
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95 }
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96
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97 void PyThread_exit_prog(int status)
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98 {
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99 do_PyThread_exit_prog(status, 0);
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100 }
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101
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102 void PyThread__exit_prog(int status)
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103 {
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104 do_PyThread_exit_prog(status, 1);
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105 }
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106 #endif /* NO_EXIT_PROG */
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107
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108 /*
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109 * Lock support. It has to be implemented using Mutexes, as
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110 * CE doesnt support semaphores. Therefore we use some hacks to
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111 * simulate the non reentrant requirements of Python locks
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112 */
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113 PyThread_type_lock PyThread_allocate_lock(void)
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114 {
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115 HANDLE aLock;
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116
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117 dprintf(("PyThread_allocate_lock called\n"));
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118 if (!initialized)
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119 PyThread_init_thread();
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120
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121 aLock = CreateEvent(NULL, /* Security attributes */
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122 0, /* Manual-Reset */
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123 1, /* Is initially signalled */
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124 NULL); /* Name of event */
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125
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126 dprintf(("%ld: PyThread_allocate_lock() -> %p\n", PyThread_get_thread_ident(), aLock));
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127
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128 return (PyThread_type_lock) aLock;
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129 }
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130
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131 void PyThread_free_lock(PyThread_type_lock aLock)
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132 {
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133 dprintf(("%ld: PyThread_free_lock(%p) called\n", PyThread_get_thread_ident(),aLock));
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134
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135 CloseHandle(aLock);
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136 }
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137
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138 /*
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139 * Return 1 on success if the lock was acquired
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140 *
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141 * and 0 if the lock was not acquired. This means a 0 is returned
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142 * if the lock has already been acquired by this thread!
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143 */
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144 int PyThread_acquire_lock(PyThread_type_lock aLock, int waitflag)
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145 {
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146 int success = 1;
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147 DWORD waitResult;
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148
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149 dprintf(("%ld: PyThread_acquire_lock(%p, %d) called\n", PyThread_get_thread_ident(),aLock, waitflag));
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150
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151 #ifndef DEBUG
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152 waitResult = WaitForSingleObject(aLock, (waitflag == 1 ? INFINITE : 0));
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153 #else
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154 /* To aid in debugging, we regularly wake up. This allows us to
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155 break into the debugger */
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156 while (TRUE) {
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157 waitResult = WaitForSingleObject(aLock, waitflag ? 3000 : 0);
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158 if (waitflag==0 || (waitflag==1 && waitResult == WAIT_OBJECT_0))
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159 break;
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160 }
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161 #endif
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162
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163 if (waitResult != WAIT_OBJECT_0) {
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164 success = 0; /* We failed */
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165 }
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166
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167 dprintf(("%ld: PyThread_acquire_lock(%p, %d) -> %d\n", PyThread_get_thread_ident(),aLock, waitflag, success));
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168
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169 return success;
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170 }
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171
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172 void PyThread_release_lock(PyThread_type_lock aLock)
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173 {
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174 dprintf(("%ld: PyThread_release_lock(%p) called\n", PyThread_get_thread_ident(),aLock));
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175
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176 if (!SetEvent(aLock))
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177 dprintf(("%ld: Could not PyThread_release_lock(%p) error: %l\n", PyThread_get_thread_ident(), aLock, GetLastError()));
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178 }
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179
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180