Mercurial > cpython-lru_cache-weakref

annotate Python/thread_solaris.h @ 24042:63fbbed10714 legacy-trunk

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Simplify HTTPSConnection constructor. See discussion in SF bug 458463.
author Jeremy Hylton <jeremy@alum.mit.edu>
date Fri, 28 Jun 2002 23:38:14 +0000
parents 8b116a8449bd
children 40d287c3d906
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1
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2 #include <stdlib.h>
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3 #include <stdio.h>
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c277ee8c669c Sjoerd's thread changes (including down_sema typo fix).
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4 #include <errno.h>
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5 #include </usr/include/thread.h>
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6 #undef _POSIX_THREADS
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7
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8
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9 /*
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10 * Initialization.
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11 */
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12 static void PyThread__init_thread(void)
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13 {
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14 }
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15
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16 /*
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17 * Thread support.
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18 */
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19 struct func_arg {
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20 void (*func)(void *);
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21 void *arg;
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22 };
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23
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24 static void *
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25 new_func(void *funcarg)
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26 {
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27 void (*func)(void *);
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28 void *arg;
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29
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30 func = ((struct func_arg *) funcarg)->func;
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31 arg = ((struct func_arg *) funcarg)->arg;
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32 free(funcarg);
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33 (*func)(arg);
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34 return 0;
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35 }
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37
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38 long
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39 PyThread_start_new_thread(void (*func)(void *), void *arg)
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40 {
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41 thread_t tid;
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42 struct func_arg *funcarg;
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43 int success = 0; /* init not needed when SOLARIS_THREADS and */
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44 /* C_THREADS implemented properly */
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45
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46 dprintf(("PyThread_start_new_thread called\n"));
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47 if (!initialized)
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48 PyThread_init_thread();
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49 funcarg = (struct func_arg *) malloc(sizeof(struct func_arg));
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50 funcarg->func = func;
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51 funcarg->arg = arg;
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52 if (thr_create(0, 0, new_func, funcarg,
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53 THR_DETACHED | THR_NEW_LWP, &tid)) {
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54 perror("thr_create");
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55 free((void *) funcarg);
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56 success = -1;
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57 }
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58 return tid;
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59 }
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61 long
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62 PyThread_get_thread_ident(void)
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63 {
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64 if (!initialized)
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65 PyThread_init_thread();
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66 return thr_self();
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67 }
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68
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69 static void
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70 do_PyThread_exit_thread(int no_cleanup)
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71 {
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72 dprintf(("PyThread_exit_thread called\n"));
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73 if (!initialized)
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74 if (no_cleanup)
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75 _exit(0);
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76 else
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77 exit(0);
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78 thr_exit(0);
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79 }
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81 void
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82 PyThread_exit_thread(void)
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83 {
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84 do_PyThread_exit_thread(0);
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85 }
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86
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87 void
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88 PyThread__exit_thread(void)
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89 {
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90 do_PyThread_exit_thread(1);
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91 }
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92
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93 #ifndef NO_EXIT_PROG
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94 static void
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95 do_PyThread_exit_prog(int status, int no_cleanup)
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96 {
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97 dprintf(("PyThread_exit_prog(%d) called\n", status));
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98 if (!initialized)
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99 if (no_cleanup)
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100 _exit(status);
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101 else
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102 exit(status);
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103 if (no_cleanup)
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104 _exit(status);
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105 else
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106 exit(status);
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107 }
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108
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109 void
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110 PyThread_exit_prog(int status)
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111 {
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112 do_PyThread_exit_prog(status, 0);
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113 }
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114
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115 void
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116 PyThread__exit_prog(int status)
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117 {
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118 do_PyThread_exit_prog(status, 1);
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119 }
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120 #endif /* NO_EXIT_PROG */
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121
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122 /*
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123 * Lock support.
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124 */
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125 PyThread_type_lock
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126 PyThread_allocate_lock(void)
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127 {
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128 mutex_t *lock;
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129
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130 dprintf(("PyThread_allocate_lock called\n"));
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131 if (!initialized)
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132 PyThread_init_thread();
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133
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134 lock = (mutex_t *) malloc(sizeof(mutex_t));
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135 if (mutex_init(lock, USYNC_THREAD, 0)) {
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136 perror("mutex_init");
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137 free((void *) lock);
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138 lock = 0;
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139 }
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140 dprintf(("PyThread_allocate_lock() -> %p\n", lock));
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141 return (PyThread_type_lock) lock;
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142 }
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143
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144 void
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145 PyThread_free_lock(PyThread_type_lock lock)
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146 {
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147 dprintf(("PyThread_free_lock(%p) called\n", lock));
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148 mutex_destroy((mutex_t *) lock);
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149 free((void *) lock);
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150 }
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151
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152 int
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153 PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
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154 {
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155 int success;
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156
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157 dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
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158 if (waitflag)
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159 success = mutex_lock((mutex_t *) lock);
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160 else
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161 success = mutex_trylock((mutex_t *) lock);
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162 if (success < 0)
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163 perror(waitflag ? "mutex_lock" : "mutex_trylock");
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164 else
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165 success = !success; /* solaris does it the other way round */
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166 dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
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167 return success;
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168 }
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169
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170 void
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171 PyThread_release_lock(PyThread_type_lock lock)
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172 {
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173 dprintf(("PyThread_release_lock(%p) called\n", lock));
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174 if (mutex_unlock((mutex_t *) lock))
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175 perror("mutex_unlock");
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176 }