Showing the changes to sys/src/cmd/python/Python/thread_cthread.h (1 of 3706 files). Show all
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| 1 | |||
| 2 | #ifdef MACH_C_THREADS | ||
| 3 | #include <mach/cthreads.h> | ||
| 4 | #endif | ||
| 5 | |||
| 6 | #ifdef HURD_C_THREADS | ||
| 7 | #include <cthreads.h> | ||
| 8 | #endif | ||
| 9 | |||
| 10 | /* | ||
| 11 | * Initialization. | ||
| 12 | */ | ||
| 13 | static void | ||
| 14 | PyThread__init_thread(void) | ||
| 15 | { | ||
| 16 | #ifndef HURD_C_THREADS | ||
| 17 | /* Roland McGrath said this should not be used since this is | ||
| 18 | done while linking to threads */ | ||
| 19 | cthread_init(); | ||
| 20 | #else | ||
| 21 | /* do nothing */ | ||
| 22 | ; | ||
| 23 | #endif | ||
| 24 | } | ||
| 25 | |||
| 26 | /* | ||
| 27 | * Thread support. | ||
| 28 | */ | ||
| 29 | long | ||
| 30 | PyThread_start_new_thread(void (*func)(void *), void *arg) | ||
| 31 | { | ||
| 32 | int success = 0; /* init not needed when SOLARIS_THREADS and */ | ||
| 33 | /* C_THREADS implemented properly */ | ||
| 34 | |||
| 35 | dprintf(("PyThread_start_new_thread called\n")); | ||
| 36 | if (!initialized) | ||
| 37 | PyThread_init_thread(); | ||
| 38 | /* looks like solaris detaches the thread to never rejoin | ||
| 39 | * so well do it here | ||
| 40 | */ | ||
| 41 | cthread_detach(cthread_fork((cthread_fn_t) func, arg)); | ||
| 42 | return success < 0 ? -1 : 0; | ||
| 43 | } | ||
| 44 | |||
| 45 | long | ||
| 46 | PyThread_get_thread_ident(void) | ||
| 47 | { | ||
| 48 | if (!initialized) | ||
| 49 | PyThread_init_thread(); | ||
| 50 | return (long) cthread_self(); | ||
| 51 | } | ||
| 52 | |||
| 53 | static void | ||
| 54 | do_PyThread_exit_thread(int no_cleanup) | ||
| 55 | { | ||
| 56 | dprintf(("PyThread_exit_thread called\n")); | ||
| 57 | if (!initialized) | ||
| 58 | if (no_cleanup) | ||
| 59 | _exit(0); | ||
| 60 | else | ||
| 61 | exit(0); | ||
| 62 | cthread_exit(0); | ||
| 63 | } | ||
| 64 | |||
| 65 | void | ||
| 66 | PyThread_exit_thread(void) | ||
| 67 | { | ||
| 68 | do_PyThread_exit_thread(0); | ||
| 69 | } | ||
| 70 | |||
| 71 | void | ||
| 72 | PyThread__exit_thread(void) | ||
| 73 | { | ||
| 74 | do_PyThread_exit_thread(1); | ||
| 75 | } | ||
| 76 | |||
| 77 | #ifndef NO_EXIT_PROG | ||
| 78 | static | ||
| 79 | void do_PyThread_exit_prog(int status, int no_cleanup) | ||
| 80 | { | ||
| 81 | dprintf(("PyThread_exit_prog(%d) called\n", status)); | ||
| 82 | if (!initialized) | ||
| 83 | if (no_cleanup) | ||
| 84 | _exit(status); | ||
| 85 | else | ||
| 86 | exit(status); | ||
| 87 | if (no_cleanup) | ||
| 88 | _exit(status); | ||
| 89 | else | ||
| 90 | exit(status); | ||
| 91 | } | ||
| 92 | |||
| 93 | void | ||
| 94 | PyThread_exit_prog(int status) | ||
| 95 | { | ||
| 96 | do_PyThread_exit_prog(status, 0); | ||
| 97 | } | ||
| 98 | |||
| 99 | void | ||
| 100 | PyThread__exit_prog(int status) | ||
| 101 | { | ||
| 102 | do_PyThread_exit_prog(status, 1); | ||
| 103 | } | ||
| 104 | #endif /* NO_EXIT_PROG */ | ||
| 105 | |||
| 106 | /* | ||
| 107 | * Lock support. | ||
| 108 | */ | ||
| 109 | PyThread_type_lock | ||
| 110 | PyThread_allocate_lock(void) | ||
| 111 | { | ||
| 112 | mutex_t lock; | ||
| 113 | |||
| 114 | dprintf(("PyThread_allocate_lock called\n")); | ||
| 115 | if (!initialized) | ||
| 116 | PyThread_init_thread(); | ||
| 117 | |||
| 118 | lock = mutex_alloc(); | ||
| 119 | if (mutex_init(lock)) { | ||
| 120 | perror("mutex_init"); | ||
| 121 | free((void *) lock); | ||
| 122 | lock = 0; | ||
| 123 | } | ||
| 124 | dprintf(("PyThread_allocate_lock() -> %p\n", lock)); | ||
| 125 | return (PyThread_type_lock) lock; | ||
| 126 | } | ||
| 127 | |||
| 128 | void | ||
| 129 | PyThread_free_lock(PyThread_type_lock lock) | ||
| 130 | { | ||
| 131 | dprintf(("PyThread_free_lock(%p) called\n", lock)); | ||
| 132 | mutex_free(lock); | ||
| 133 | } | ||
| 134 | |||
| 135 | int | ||
| 136 | PyThread_acquire_lock(PyThread_type_lock lock, int waitflag) | ||
| 137 | { | ||
| 138 | int success = FALSE; | ||
| 139 | |||
| 140 | dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag)); | ||
| 141 | if (waitflag) { /* blocking */ | ||
| 142 | mutex_lock((mutex_t)lock); | ||
| 143 | success = TRUE; | ||
| 144 | } else { /* non blocking */ | ||
| 145 | success = mutex_try_lock((mutex_t)lock); | ||
| 146 | } | ||
| 147 | dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success)); | ||
| 148 | return success; | ||
| 149 | } | ||
| 150 | |||
| 151 | void | ||
| 152 | PyThread_release_lock(PyThread_type_lock lock) | ||
| 153 | { | ||
| 154 | dprintf(("PyThread_release_lock(%p) called\n", lock)); | ||
| 155 | mutex_unlock((mutex_t )lock); | ||
| 156 | } | ||