Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 2 | Copyright (c) 2000, BeOpen.com. |
| 3 | Copyright (c) 1995-2000, Corporation for National Research Initiatives. |
| 4 | Copyright (c) 1990-1995, Stichting Mathematisch Centrum. |
| 5 | All rights reserved. |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 6 | |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 7 | See the file "Misc/COPYRIGHT" for information on usage and |
| 8 | redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 9 | ******************************************************************/ |
| 10 | |
| 11 | #include <stdlib.h> |
| 12 | #include <stdio.h> |
| 13 | #include <unistd.h> |
Guido van Rossum | cf1474b | 1996-10-08 14:17:53 +0000 | [diff] [blame] | 14 | #include <errno.h> |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 15 | #include </usr/include/thread.h> |
Guido van Rossum | 6eea326 | 1996-08-26 14:58:54 +0000 | [diff] [blame] | 16 | #undef _POSIX_THREADS |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 17 | |
| 18 | |
| 19 | /* |
| 20 | * Initialization. |
| 21 | */ |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 22 | static void PyThread__init_thread(void) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 23 | { |
| 24 | } |
| 25 | |
| 26 | /* |
| 27 | * Thread support. |
| 28 | */ |
| 29 | struct func_arg { |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 30 | void (*func)(void *); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 31 | void *arg; |
| 32 | }; |
| 33 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 34 | static void * |
| 35 | new_func(void *funcarg) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 36 | { |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 37 | void (*func)(void *); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 38 | void *arg; |
| 39 | |
| 40 | func = ((struct func_arg *) funcarg)->func; |
| 41 | arg = ((struct func_arg *) funcarg)->arg; |
| 42 | free(funcarg); |
| 43 | (*func)(arg); |
| 44 | return 0; |
| 45 | } |
| 46 | |
| 47 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 48 | int |
| 49 | PyThread_start_new_thread(void (*func)(void *), void *arg) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 50 | { |
| 51 | struct func_arg *funcarg; |
| 52 | int success = 0; /* init not needed when SOLARIS_THREADS and */ |
| 53 | /* C_THREADS implemented properly */ |
| 54 | |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 55 | dprintf(("PyThread_start_new_thread called\n")); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 56 | if (!initialized) |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 57 | PyThread_init_thread(); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 58 | funcarg = (struct func_arg *) malloc(sizeof(struct func_arg)); |
| 59 | funcarg->func = func; |
| 60 | funcarg->arg = arg; |
Guido van Rossum | 495894e | 1999-04-13 14:32:12 +0000 | [diff] [blame] | 61 | if (thr_create(0, 0, new_func, funcarg, |
| 62 | THR_DETACHED | THR_NEW_LWP, 0)) { |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 63 | perror("thr_create"); |
| 64 | free((void *) funcarg); |
| 65 | success = -1; |
| 66 | } |
| 67 | return success < 0 ? 0 : 1; |
| 68 | } |
| 69 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 70 | long |
| 71 | PyThread_get_thread_ident(void) |
Guido van Rossum | e944da8 | 1994-05-23 12:43:41 +0000 | [diff] [blame] | 72 | { |
| 73 | if (!initialized) |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 74 | PyThread_init_thread(); |
Guido van Rossum | e944da8 | 1994-05-23 12:43:41 +0000 | [diff] [blame] | 75 | return thr_self(); |
| 76 | } |
| 77 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 78 | static void |
| 79 | do_PyThread_exit_thread(int no_cleanup) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 80 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 81 | dprintf(("PyThread_exit_thread called\n")); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 82 | if (!initialized) |
| 83 | if (no_cleanup) |
| 84 | _exit(0); |
| 85 | else |
| 86 | exit(0); |
| 87 | thr_exit(0); |
| 88 | } |
| 89 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 90 | void |
| 91 | PyThread_exit_thread(void) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 92 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 93 | do_PyThread_exit_thread(0); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 94 | } |
| 95 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 96 | void |
| 97 | PyThread__exit_thread(void) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 98 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 99 | do_PyThread_exit_thread(1); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | #ifndef NO_EXIT_PROG |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 103 | static void |
| 104 | do_PyThread_exit_prog(int status, int no_cleanup) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 105 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 106 | dprintf(("PyThread_exit_prog(%d) called\n", status)); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 107 | if (!initialized) |
| 108 | if (no_cleanup) |
| 109 | _exit(status); |
| 110 | else |
| 111 | exit(status); |
| 112 | if (no_cleanup) |
| 113 | _exit(status); |
| 114 | else |
| 115 | exit(status); |
| 116 | } |
| 117 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 118 | void |
| 119 | PyThread_exit_prog(int status) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 120 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 121 | do_PyThread_exit_prog(status, 0); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 122 | } |
| 123 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 124 | void |
| 125 | PyThread__exit_prog(int status) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 126 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 127 | do_PyThread_exit_prog(status, 1); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 128 | } |
| 129 | #endif /* NO_EXIT_PROG */ |
| 130 | |
| 131 | /* |
| 132 | * Lock support. |
| 133 | */ |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 134 | PyThread_type_lock |
| 135 | PyThread_allocate_lock(void) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 136 | { |
| 137 | mutex_t *lock; |
| 138 | |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 139 | dprintf(("PyThread_allocate_lock called\n")); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 140 | if (!initialized) |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 141 | PyThread_init_thread(); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 142 | |
| 143 | lock = (mutex_t *) malloc(sizeof(mutex_t)); |
| 144 | if (mutex_init(lock, USYNC_THREAD, 0)) { |
| 145 | perror("mutex_init"); |
| 146 | free((void *) lock); |
| 147 | lock = 0; |
| 148 | } |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 149 | dprintf(("PyThread_allocate_lock() -> %p\n", lock)); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 150 | return (PyThread_type_lock) lock; |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 151 | } |
| 152 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 153 | void |
| 154 | PyThread_free_lock(PyThread_type_lock lock) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 155 | { |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 156 | dprintf(("PyThread_free_lock(%p) called\n", lock)); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 157 | mutex_destroy((mutex_t *) lock); |
| 158 | free((void *) lock); |
| 159 | } |
| 160 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 161 | int |
| 162 | PyThread_acquire_lock(PyThread_type_lock lock, int waitflag) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 163 | { |
| 164 | int success; |
| 165 | |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 166 | dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag)); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 167 | if (waitflag) |
| 168 | success = mutex_lock((mutex_t *) lock); |
| 169 | else |
| 170 | success = mutex_trylock((mutex_t *) lock); |
| 171 | if (success < 0) |
| 172 | perror(waitflag ? "mutex_lock" : "mutex_trylock"); |
| 173 | else |
| 174 | success = !success; /* solaris does it the other way round */ |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 175 | dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success)); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 176 | return success; |
| 177 | } |
| 178 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 179 | void |
| 180 | PyThread_release_lock(PyThread_type_lock lock) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 181 | { |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 182 | dprintf(("PyThread_release_lock(%p) called\n", lock)); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 183 | if (mutex_unlock((mutex_t *) lock)) |
| 184 | perror("mutex_unlock"); |
| 185 | } |
| 186 | |
| 187 | /* |
| 188 | * Semaphore support. |
| 189 | */ |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 190 | PyThread_type_sema |
| 191 | PyThread_allocate_sema(int value) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 192 | { |
| 193 | sema_t *sema; |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 194 | dprintf(("PyThread_allocate_sema called\n")); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 195 | if (!initialized) |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 196 | PyThread_init_thread(); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 197 | |
| 198 | sema = (sema_t *) malloc(sizeof(sema_t)); |
| 199 | if (sema_init(sema, value, USYNC_THREAD, 0)) { |
| 200 | perror("sema_init"); |
| 201 | free((void *) sema); |
| 202 | sema = 0; |
| 203 | } |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 204 | dprintf(("PyThread_allocate_sema() -> %p\n", sema)); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 205 | return (PyThread_type_sema) sema; |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 206 | } |
| 207 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 208 | void |
| 209 | PyThread_free_sema(PyThread_type_sema sema) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 210 | { |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 211 | dprintf(("PyThread_free_sema(%p) called\n", sema)); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 212 | if (sema_destroy((sema_t *) sema)) |
| 213 | perror("sema_destroy"); |
| 214 | free((void *) sema); |
| 215 | } |
| 216 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 217 | int |
| 218 | PyThread_down_sema(PyThread_type_sema sema, int waitflag) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 219 | { |
Guido van Rossum | cf1474b | 1996-10-08 14:17:53 +0000 | [diff] [blame] | 220 | int success; |
| 221 | |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 222 | dprintf(("PyThread_down_sema(%p) called\n", sema)); |
Guido van Rossum | cf1474b | 1996-10-08 14:17:53 +0000 | [diff] [blame] | 223 | if (waitflag) |
| 224 | success = sema_wait((sema_t *) sema); |
| 225 | else |
| 226 | success = sema_trywait((sema_t *) sema); |
| 227 | if (success < 0) { |
| 228 | if (errno == EBUSY) |
| 229 | success = 0; |
| 230 | else |
| 231 | perror("sema_wait"); |
| 232 | } |
| 233 | else |
| 234 | success = !success; |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 235 | dprintf(("PyThread_down_sema(%p) return %d\n", sema, success)); |
Guido van Rossum | cf1474b | 1996-10-08 14:17:53 +0000 | [diff] [blame] | 236 | return success; |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 237 | } |
| 238 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 239 | void |
| 240 | PyThread_up_sema(PyThread_type_sema sema) |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 241 | { |
Fred Drake | a44d353 | 2000-06-30 15:01:00 +0000 | [diff] [blame] | 242 | dprintf(("PyThread_up_sema(%p)\n", sema)); |
Guido van Rossum | 2c8cb9f | 1994-05-09 15:12:46 +0000 | [diff] [blame] | 243 | if (sema_post((sema_t *) sema)) |
| 244 | perror("sema_post"); |
| 245 | } |