Mercurial > cpython-lru_cache-weakref

annotate Python/thread_cthread.h @ 3323:6098aaa8ae7f legacy-trunk

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author Guido van Rossum <guido@python.org>
date Fri, 12 Jan 1996 01:09:56 +0000
parents d0d0a69b5ca3
children 5aab3f668e84
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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 not be used in advertising or publicity pertaining to
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13 distribution of the software without specific, written prior permission.
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14
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15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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22
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23 ******************************************************************/
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24
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25 #include <cthreads.h>
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26
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27
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28 /*
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29 * Initialization.
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30 */
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31 static void _init_thread _P0()
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32 {
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33 cthread_init();
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34 }
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35
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36 /*
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37 * Thread support.
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38 */
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39 int start_new_thread _P2(func, void (*func) _P((void *)), arg, void *arg)
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40 {
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41 int success = 0; /* init not needed when SOLARIS_THREADS and */
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42 /* C_THREADS implemented properly */
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43
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44 dprintf(("start_new_thread called\n"));
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45 if (!initialized)
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46 init_thread();
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47 (void) cthread_fork(func, arg);
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48 return success < 0 ? 0 : 1;
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49 }
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50
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51 long get_thread_ident _P0()
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52 {
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53 if (!initialized)
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54 init_thread();
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55 }
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56
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57 static void do_exit_thread _P1(no_cleanup, int no_cleanup)
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58 {
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59 dprintf(("exit_thread called\n"));
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60 if (!initialized)
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61 if (no_cleanup)
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62 _exit(0);
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63 else
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64 exit(0);
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65 cthread_exit(0);
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66 }
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67
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68 void exit_thread _P0()
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69 {
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70 do_exit_thread(0);
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71 }
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72
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73 void _exit_thread _P0()
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74 {
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75 do_exit_thread(1);
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76 }
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77
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78 #ifndef NO_EXIT_PROG
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79 static void do_exit_prog _P2(status, int status, no_cleanup, int no_cleanup)
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80 {
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81 dprintf(("exit_prog(%d) called\n", status));
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82 if (!initialized)
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83 if (no_cleanup)
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84 _exit(status);
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85 else
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86 exit(status);
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87 }
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88
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89 void exit_prog _P1(status, int status)
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90 {
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91 do_exit_prog(status, 0);
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92 }
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93
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94 void _exit_prog _P1(status, int status)
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95 {
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96 do_exit_prog(status, 1);
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97 }
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98 #endif /* NO_EXIT_PROG */
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99
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100 /*
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101 * Lock support.
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102 */
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103 type_lock allocate_lock _P0()
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104 {
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105
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106 dprintf(("allocate_lock called\n"));
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107 if (!initialized)
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108 init_thread();
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109
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110 dprintf(("allocate_lock() -> %lx\n", (long)lock));
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111 return (type_lock) lock;
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112 }
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113
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114 void free_lock _P1(lock, type_lock lock)
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115 {
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116 dprintf(("free_lock(%lx) called\n", (long)lock));
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117 }
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118
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119 int acquire_lock _P2(lock, type_lock lock, waitflag, int waitflag)
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120 {
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121 int success;
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122
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123 dprintf(("acquire_lock(%lx, %d) called\n", (long)lock, waitflag));
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124 dprintf(("acquire_lock(%lx, %d) -> %d\n", (long)lock, waitflag, success));
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125 return success;
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126 }
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127
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128 void release_lock _P1(lock, type_lock lock)
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129 {
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130 dprintf(("release_lock(%lx) called\n", (long)lock));
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131 }
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132
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133 /*
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134 * Semaphore support.
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135 */
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136 type_sema allocate_sema _P1(value, int value)
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137 {
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138 dprintf(("allocate_sema called\n"));
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139 if (!initialized)
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140 init_thread();
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141
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142 dprintf(("allocate_sema() -> %lx\n", (long) sema));
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143 return (type_sema) sema;
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144 }
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145
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146 void free_sema _P1(sema, type_sema sema)
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147 {
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148 dprintf(("free_sema(%lx) called\n", (long) sema));
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149 }
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150
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151 void down_sema _P1(sema, type_sema sema)
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152 {
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153 dprintf(("down_sema(%lx) called\n", (long) sema));
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154 dprintf(("down_sema(%lx) return\n", (long) sema));
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155 }
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156
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157 void up_sema _P1(sema, type_sema sema)
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158 {
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159 dprintf(("up_sema(%lx)\n", (long) sema));
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160 }