Showing the changes to sys/src/cmd/python/Python/thread_plan9.h (1 of 3706 files). Show all
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| 1 | +#define _PLAN9_SOURCE | |
| 2 | +#include <u.h> | |
| 3 | +#include <lib9.h> | |
| 4 | +#include <qlock.h> | |
| 5 | + | |
| 6 | +/* | |
| 7 | + * Initialization. | |
| 8 | + */ | |
| 9 | +static void | |
| 10 | +PyThread__init_thread(void) | |
| 11 | +{ | |
| 12 | +} | |
| 13 | + | |
| 14 | +/* | |
| 15 | + * Thread support. | |
| 16 | + */ | |
| 17 | +long | |
| 18 | +PyThread_start_new_thread(void (*func)(void *), void *arg) | |
| 19 | +{ | |
| 20 | + dprintf(("PyThread_start_new_thread called\n")); | |
| 21 | + if (!initialized) | |
| 22 | + PyThread_init_thread(); | |
| 23 | + switch(rfork(RFPROC|RFMEM)){ | |
| 24 | + case -1: | |
| 25 | + printf("rfork: %r\n"); | |
| 26 | + return -1; | |
| 27 | + case 0: | |
| 28 | + _threadarg->fn = func; | |
| 29 | + _threadarg->arg = arg; | |
| 30 | + longjmp(_threadarg->jb, 1); | |
| 31 | + default: | |
| 32 | + return 0; | |
| 33 | + } | |
| 34 | +} | |
| 35 | + | |
| 36 | +long | |
| 37 | +PyThread_get_thread_ident(void) | |
| 38 | +{ | |
| 39 | + if (!initialized) | |
| 40 | + PyThread_init_thread(); | |
| 41 | + return getpid(); | |
| 42 | +} | |
| 43 | + | |
| 44 | +void | |
| 45 | +PyThread_exit_thread(void) | |
| 46 | +{ | |
| 47 | + if(initialized) | |
| 48 | + _exit(0); | |
| 49 | + exit(0); | |
| 50 | +} | |
| 51 | + | |
| 52 | +void | |
| 53 | +PyThread__exit_thread(void) | |
| 54 | +{ | |
| 55 | + _exit(0); | |
| 56 | +} | |
| 57 | + | |
| 58 | +#ifndef NO_EXIT_PROG | |
| 59 | +static | |
| 60 | +void do_PyThread_exit_prog(int status, int no_cleanup) | |
| 61 | +{ | |
| 62 | + /* | |
| 63 | + * BUG BUG BUG | |
| 64 | + */ | |
| 65 | + | |
| 66 | + dprintf(("PyThread_exit_prog(%d) called\n", status)); | |
| 67 | + if (!initialized) | |
| 68 | + if (no_cleanup) | |
| 69 | + _exit(status); | |
| 70 | + else | |
| 71 | + exit(status); | |
| 72 | +} | |
| 73 | + | |
| 74 | +void | |
| 75 | +PyThread_exit_prog(int status) | |
| 76 | +{ | |
| 77 | + do_PyThread_exit_prog(status, 0); | |
| 78 | +} | |
| 79 | + | |
| 80 | +void | |
| 81 | +PyThread__exit_prog(int status) | |
| 82 | +{ | |
| 83 | + do_PyThread_exit_prog(status, 1); | |
| 84 | +} | |
| 85 | +#endif /* NO_EXIT_PROG */ | |
| 86 | + | |
| 87 | +/* | |
| 88 | + * Lock support. | |
| 89 | + */ | |
| 90 | +PyThread_type_lock | |
| 91 | +PyThread_allocate_lock(void) | |
| 92 | +{ | |
| 93 | + QLock *lk; | |
| 94 | + | |
| 95 | + dprintf(("PyThread_allocate_lock called\n")); | |
| 96 | + if (!initialized) | |
| 97 | + PyThread_init_thread(); | |
| 98 | + | |
| 99 | + lk = malloc(sizeof(*lk)); | |
| 100 | + memset(lk, 0, sizeof(*lk)); | |
| 101 | + dprintf(("PyThread_allocate_lock() -> %p\n", lk)); | |
| 102 | + return lk; | |
| 103 | +} | |
| 104 | + | |
| 105 | +void | |
| 106 | +PyThread_free_lock(PyThread_type_lock lock) | |
| 107 | +{ | |
| 108 | + dprintf(("PyThread_free_lock(%p) called\n", lock)); | |
| 109 | + free(lock); | |
| 110 | +} | |
| 111 | + | |
| 112 | +int | |
| 113 | +PyThread_acquire_lock(PyThread_type_lock lock, int waitflag) | |
| 114 | +{ | |
| 115 | + int success; | |
| 116 | + | |
| 117 | + dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag)); | |
| 118 | + if(lock == nil) | |
| 119 | + success = 0; | |
| 120 | + else if(waitflag){ | |
| 121 | + qlock(lock); | |
| 122 | + success = 1; | |
| 123 | + }else | |
| 124 | + success = canqlock(lock); | |
| 125 | + dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success)); | |
| 126 | + return success; | |
| 127 | +} | |
| 128 | + | |
| 129 | +void | |
| 130 | +PyThread_release_lock(PyThread_type_lock lock) | |
| 131 | +{ | |
| 132 | + dprintf(("PyThread_release_lock(%p) called\n", lock)); | |
| 133 | + qunlock(lock); | |
| 134 | +} | |
| 135 | + | |