| 1 |
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| 2 | #ifdef MACH_C_THREADS
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| 3 | #include <mach/cthreads.h>
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| 4 | #endif
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| 5 |
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| 6 | #ifdef HURD_C_THREADS
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| 7 | #include <cthreads.h>
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| 8 | #endif
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| 9 |
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| 10 | /*
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| 11 | * Initialization.
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| 12 | */
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| 13 | static void
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| 14 | PyThread__init_thread(void)
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| 15 | {
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| 16 | #ifndef HURD_C_THREADS
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| 17 | /* Roland McGrath said this should not be used since this is
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| 18 | done while linking to threads */
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| 19 | cthread_init();
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| 20 | #else
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| 21 | /* do nothing */
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| 22 | ;
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| 23 | #endif
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| 24 | }
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| 25 |
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| 26 | /*
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| 27 | * Thread support.
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| 28 | */
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| 29 | long
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| 30 | PyThread_start_new_thread(void (*func)(void *), void *arg)
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| 31 | {
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| 32 | int success = 0; /* init not needed when SOLARIS_THREADS and */
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| 33 | /* C_THREADS implemented properly */
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| 34 |
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| 35 | dprintf(("PyThread_start_new_thread called\n"));
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| 36 | if (!initialized)
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| 37 | PyThread_init_thread();
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| 38 | /* looks like solaris detaches the thread to never rejoin
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| 39 | * so well do it here
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| 40 | */
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| 41 | cthread_detach(cthread_fork((cthread_fn_t) func, arg));
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| 42 | return success < 0 ? -1 : 0;
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| 43 | }
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| 44 |
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| 45 | long
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| 46 | PyThread_get_thread_ident(void)
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| 47 | {
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| 48 | if (!initialized)
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| 49 | PyThread_init_thread();
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| 50 | return (long) cthread_self();
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| 51 | }
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| 52 |
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| 53 | void
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| 54 | PyThread_exit_thread(void)
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| 55 | {
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| 56 | dprintf(("PyThread_exit_thread called\n"));
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| 57 | if (!initialized)
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| 58 | exit(0);
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| 59 | cthread_exit(0);
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| 60 | }
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| 61 |
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| 62 | /*
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| 63 | * Lock support.
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| 64 | */
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| 65 | PyThread_type_lock
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| 66 | PyThread_allocate_lock(void)
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| 67 | {
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| 68 | mutex_t lock;
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| 69 |
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| 70 | dprintf(("PyThread_allocate_lock called\n"));
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| 71 | if (!initialized)
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| 72 | PyThread_init_thread();
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| 73 |
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| 74 | lock = mutex_alloc();
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| 75 | if (mutex_init(lock)) {
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| 76 | perror("mutex_init");
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| 77 | free((void *) lock);
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| 78 | lock = 0;
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| 79 | }
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| 80 | dprintf(("PyThread_allocate_lock() -> %p\n", lock));
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| 81 | return (PyThread_type_lock) lock;
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| 82 | }
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| 83 |
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| 84 | void
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| 85 | PyThread_free_lock(PyThread_type_lock lock)
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| 86 | {
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| 87 | dprintf(("PyThread_free_lock(%p) called\n", lock));
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| 88 | mutex_free(lock);
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| 89 | }
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| 90 |
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| 91 | int
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| 92 | PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
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| 93 | {
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| 94 | int success = FALSE;
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| 95 |
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| 96 | dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
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| 97 | if (waitflag) { /* blocking */
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| 98 | mutex_lock((mutex_t)lock);
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| 99 | success = TRUE;
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| 100 | } else { /* non blocking */
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| 101 | success = mutex_try_lock((mutex_t)lock);
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| 102 | }
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| 103 | dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
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| 104 | return success;
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| 105 | }
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| 106 |
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| 107 | void
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| 108 | PyThread_release_lock(PyThread_type_lock lock)
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| 109 | {
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| 110 | dprintf(("PyThread_release_lock(%p) called\n", lock));
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| 111 | mutex_unlock((mutex_t )lock);
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| 112 | }
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