1 |
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2 | #include <stdlib.h>
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3 | #include <stdio.h>
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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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36 |
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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 |
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44 | dprintf(("PyThread_start_new_thread called\n"));
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45 | if (!initialized)
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46 | PyThread_init_thread();
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47 | funcarg = (struct func_arg *) malloc(sizeof(struct func_arg));
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48 | funcarg->func = func;
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49 | funcarg->arg = arg;
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50 | if (thr_create(0, 0, new_func, funcarg,
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51 | THR_DETACHED | THR_NEW_LWP, &tid)) {
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52 | perror("thr_create");
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53 | free((void *) funcarg);
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54 | return -1;
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55 | }
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56 | return tid;
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57 | }
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58 |
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59 | long
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60 | PyThread_get_thread_ident(void)
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61 | {
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62 | if (!initialized)
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63 | PyThread_init_thread();
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64 | return thr_self();
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65 | }
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66 |
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67 | static void
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68 | do_PyThread_exit_thread(int no_cleanup)
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69 | {
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70 | dprintf(("PyThread_exit_thread called\n"));
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71 | if (!initialized)
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72 | if (no_cleanup)
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73 | _exit(0);
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74 | else
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75 | exit(0);
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76 | thr_exit(0);
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77 | }
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78 |
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79 | void
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80 | PyThread_exit_thread(void)
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81 | {
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82 | do_PyThread_exit_thread(0);
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83 | }
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84 |
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85 | void
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86 | PyThread__exit_thread(void)
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87 | {
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88 | do_PyThread_exit_thread(1);
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89 | }
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90 |
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91 | #ifndef NO_EXIT_PROG
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92 | static void
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93 | do_PyThread_exit_prog(int status, int no_cleanup)
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94 | {
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95 | dprintf(("PyThread_exit_prog(%d) called\n", status));
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96 | if (!initialized)
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97 | if (no_cleanup)
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98 | _exit(status);
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99 | else
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100 | exit(status);
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101 | if (no_cleanup)
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102 | _exit(status);
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103 | else
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104 | exit(status);
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105 | }
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106 |
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107 | void
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108 | PyThread_exit_prog(int status)
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109 | {
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110 | do_PyThread_exit_prog(status, 0);
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111 | }
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112 |
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113 | void
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114 | PyThread__exit_prog(int status)
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115 | {
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116 | do_PyThread_exit_prog(status, 1);
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117 | }
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118 | #endif /* NO_EXIT_PROG */
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119 |
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120 | /*
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121 | * Lock support.
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122 | */
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123 | PyThread_type_lock
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124 | PyThread_allocate_lock(void)
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125 | {
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126 | mutex_t *lock;
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127 |
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128 | dprintf(("PyThread_allocate_lock called\n"));
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129 | if (!initialized)
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130 | PyThread_init_thread();
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131 |
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132 | lock = (mutex_t *) malloc(sizeof(mutex_t));
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133 | if (mutex_init(lock, USYNC_THREAD, 0)) {
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134 | perror("mutex_init");
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135 | free((void *) lock);
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136 | lock = 0;
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137 | }
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138 | dprintf(("PyThread_allocate_lock() -> %p\n", lock));
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139 | return (PyThread_type_lock) lock;
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140 | }
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141 |
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142 | void
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143 | PyThread_free_lock(PyThread_type_lock lock)
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144 | {
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145 | dprintf(("PyThread_free_lock(%p) called\n", lock));
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146 | mutex_destroy((mutex_t *) lock);
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147 | free((void *) lock);
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148 | }
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149 |
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150 | int
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151 | PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
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152 | {
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153 | int success;
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154 |
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155 | dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
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156 | if (waitflag)
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157 | success = mutex_lock((mutex_t *) lock);
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158 | else
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159 | success = mutex_trylock((mutex_t *) lock);
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160 | if (success < 0)
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161 | perror(waitflag ? "mutex_lock" : "mutex_trylock");
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162 | else
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163 | success = !success; /* solaris does it the other way round */
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164 | dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
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165 | return success;
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166 | }
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167 |
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168 | void
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169 | PyThread_release_lock(PyThread_type_lock lock)
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170 | {
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171 | dprintf(("PyThread_release_lock(%p) called\n", lock));
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172 | if (mutex_unlock((mutex_t *) lock))
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173 | perror("mutex_unlock");
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174 | }
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