Mercurial > cpython-lru_cache-weakref

annotate Python/thread_solaris.h @ 13184:efecbbf72765 legacy-trunk

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Describe a bit about writing test cases for Python...
author Skip Montanaro <skip@pobox.com>
date Fri, 30 Jun 2000 06:08:35 +0000
parents 700daa75847a
children ff243b0f16ee
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1 /***********************************************************
2062
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2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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3 The Netherlands.
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4
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5 All Rights Reserved
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6
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7 Permission to use, copy, modify, and distribute this software and its
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8 documentation for any purpose and without fee is hereby granted,
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9 provided that the above copyright notice appear in all copies and that
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10 both that copyright notice and this permission notice appear in
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11 supporting documentation, and that the names of Stichting Mathematisch
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12 Centrum or CWI or Corporation for National Research Initiatives or
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13 CNRI not be used in advertising or publicity pertaining to
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14 distribution of the software without specific, written prior
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15 permission.
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16
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17 While CWI is the initial source for this software, a modified version
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18 is made available by the Corporation for National Research Initiatives
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19 (CNRI) at the Internet address ftp://ftp.python.org.
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20
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21 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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22 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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23 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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24 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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25 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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26 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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27 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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28 PERFORMANCE OF THIS SOFTWARE.
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29
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30 ******************************************************************/
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31
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32 #include <stdlib.h>
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33 #include <stdio.h>
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34 #include <unistd.h>
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35 #include <errno.h>
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36 #include </usr/include/thread.h>
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37 #undef _POSIX_THREADS
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38
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39
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40 /*
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41 * Initialization.
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42 */
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43 static void PyThread__init_thread _P0()
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44 {
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45 }
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46
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47 /*
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48 * Thread support.
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49 */
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50 struct func_arg {
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51 void (*func) _P((void *));
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52 void *arg;
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53 };
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54
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55 static void *new_func _P1(funcarg, void *funcarg)
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56 {
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57 void (*func) _P((void *));
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58 void *arg;
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59
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60 func = ((struct func_arg *) funcarg)->func;
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61 arg = ((struct func_arg *) funcarg)->arg;
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62 free(funcarg);
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63 (*func)(arg);
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64 return 0;
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65 }
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66
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67
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68 int PyThread_start_new_thread _P2(func, void (*func) _P((void *)), arg, void *arg)
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69 {
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70 struct func_arg *funcarg;
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71 int success = 0; /* init not needed when SOLARIS_THREADS and */
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72 /* C_THREADS implemented properly */
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73
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74 dprintf(("PyThread_start_new_thread called\n"));
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75 if (!initialized)
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76 PyThread_init_thread();
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77 funcarg = (struct func_arg *) malloc(sizeof(struct func_arg));
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78 funcarg->func = func;
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79 funcarg->arg = arg;
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80 if (thr_create(0, 0, new_func, funcarg,
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81 THR_DETACHED | THR_NEW_LWP, 0)) {
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82 perror("thr_create");
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83 free((void *) funcarg);
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84 success = -1;
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85 }
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86 return success < 0 ? 0 : 1;
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87 }
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88
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89 long PyThread_get_thread_ident _P0()
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90 {
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91 if (!initialized)
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92 PyThread_init_thread();
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93 return thr_self();
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94 }
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95
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96 static void do_PyThread_exit_thread _P1(no_cleanup, int no_cleanup)
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97 {
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98 dprintf(("PyThread_exit_thread called\n"));
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99 if (!initialized)
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100 if (no_cleanup)
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101 _exit(0);
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102 else
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103 exit(0);
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104 thr_exit(0);
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105 }
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106
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107 void PyThread_exit_thread _P0()
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108 {
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109 do_PyThread_exit_thread(0);
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110 }
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111
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112 void PyThread__exit_thread _P0()
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113 {
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114 do_PyThread_exit_thread(1);
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115 }
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116
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117 #ifndef NO_EXIT_PROG
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118 static void do_PyThread_exit_prog _P2(status, int status, no_cleanup, int no_cleanup)
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119 {
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120 dprintf(("PyThread_exit_prog(%d) called\n", status));
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121 if (!initialized)
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122 if (no_cleanup)
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123 _exit(status);
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124 else
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125 exit(status);
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126 if (no_cleanup)
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127 _exit(status);
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128 else
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129 exit(status);
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130 }
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131
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132 void PyThread_exit_prog _P1(status, int status)
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133 {
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134 do_PyThread_exit_prog(status, 0);
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135 }
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136
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137 void PyThread__exit_prog _P1(status, int status)
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138 {
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139 do_PyThread_exit_prog(status, 1);
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140 }
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141 #endif /* NO_EXIT_PROG */
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142
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143 /*
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144 * Lock support.
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145 */
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146 PyThread_type_lock PyThread_allocate_lock _P0()
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147 {
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148 mutex_t *lock;
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149
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150 dprintf(("PyThread_allocate_lock called\n"));
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151 if (!initialized)
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152 PyThread_init_thread();
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153
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154 lock = (mutex_t *) malloc(sizeof(mutex_t));
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155 if (mutex_init(lock, USYNC_THREAD, 0)) {
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156 perror("mutex_init");
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157 free((void *) lock);
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158 lock = 0;
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159 }
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160 dprintf(("PyThread_allocate_lock() -> %lx\n", (long)lock));
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161 return (PyThread_type_lock) lock;
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162 }
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163
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164 void PyThread_free_lock _P1(lock, PyThread_type_lock lock)
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165 {
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166 dprintf(("PyThread_free_lock(%lx) called\n", (long)lock));
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167 mutex_destroy((mutex_t *) lock);
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168 free((void *) lock);
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169 }
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170
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171 int PyThread_acquire_lock _P2(lock, PyThread_type_lock lock, waitflag, int waitflag)
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172 {
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173 int success;
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174
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175 dprintf(("PyThread_acquire_lock(%lx, %d) called\n", (long)lock, waitflag));
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176 if (waitflag)
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177 success = mutex_lock((mutex_t *) lock);
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178 else
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179 success = mutex_trylock((mutex_t *) lock);
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180 if (success < 0)
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181 perror(waitflag ? "mutex_lock" : "mutex_trylock");
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182 else
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183 success = !success; /* solaris does it the other way round */
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184 dprintf(("PyThread_acquire_lock(%lx, %d) -> %d\n", (long)lock, waitflag, success));
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185 return success;
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186 }
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187
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188 void PyThread_release_lock _P1(lock, PyThread_type_lock lock)
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189 {
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190 dprintf(("PyThread_release_lock(%lx) called\n", (long)lock));
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191 if (mutex_unlock((mutex_t *) lock))
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192 perror("mutex_unlock");
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193 }
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194
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195 /*
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196 * Semaphore support.
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197 */
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198 PyThread_type_sema PyThread_allocate_sema _P1(value, int value)
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199 {
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200 sema_t *sema;
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201 dprintf(("PyThread_allocate_sema called\n"));
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202 if (!initialized)
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203 PyThread_init_thread();
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204
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205 sema = (sema_t *) malloc(sizeof(sema_t));
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206 if (sema_init(sema, value, USYNC_THREAD, 0)) {
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207 perror("sema_init");
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208 free((void *) sema);
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209 sema = 0;
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210 }
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211 dprintf(("PyThread_allocate_sema() -> %lx\n", (long) sema));
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212 return (PyThread_type_sema) sema;
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213 }
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214
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215 void PyThread_free_sema _P1(sema, PyThread_type_sema sema)
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216 {
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217 dprintf(("PyThread_free_sema(%lx) called\n", (long) sema));
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218 if (sema_destroy((sema_t *) sema))
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219 perror("sema_destroy");
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220 free((void *) sema);
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221 }
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222
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223 int PyThread_down_sema _P2(sema, PyThread_type_sema sema, waitflag, int waitflag)
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224 {
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225 int success;
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226
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227 dprintf(("PyThread_down_sema(%lx) called\n", (long) sema));
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228 if (waitflag)
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229 success = sema_wait((sema_t *) sema);
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230 else
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231 success = sema_trywait((sema_t *) sema);
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232 if (success < 0) {
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diff changeset
233 if (errno == EBUSY)
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234 success = 0;
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235 else
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236 perror("sema_wait");
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diff changeset
237 }
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238 else
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239 success = !success;
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240 dprintf(("PyThread_down_sema(%lx) return %d\n", (long) sema, success));
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241 return success;
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242 }
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243
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244 void PyThread_up_sema _P1(sema, PyThread_type_sema sema)
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245 {
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246 dprintf(("PyThread_up_sema(%lx)\n", (long) sema));
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247 if (sema_post((sema_t *) sema))
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248 perror("sema_post");
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249 }