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 | |||