mirror of
https://github.com/python/cpython.git
synced 2024-11-28 12:31:14 +08:00
177 lines
3.1 KiB
C
177 lines
3.1 KiB
C
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include </usr/include/thread.h>
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#undef _POSIX_THREADS
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/*
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* Initialization.
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*/
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static void PyThread__init_thread(void)
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{
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}
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/*
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* Thread support.
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*/
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struct func_arg {
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void (*func)(void *);
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void *arg;
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};
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static void *
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new_func(void *funcarg)
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{
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void (*func)(void *);
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void *arg;
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func = ((struct func_arg *) funcarg)->func;
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arg = ((struct func_arg *) funcarg)->arg;
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free(funcarg);
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(*func)(arg);
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return 0;
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}
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long
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PyThread_start_new_thread(void (*func)(void *), void *arg)
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{
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thread_t tid;
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struct func_arg *funcarg;
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int success = 0; /* init not needed when SOLARIS_THREADS and */
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/* C_THREADS implemented properly */
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dprintf(("PyThread_start_new_thread called\n"));
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if (!initialized)
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PyThread_init_thread();
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funcarg = (struct func_arg *) malloc(sizeof(struct func_arg));
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funcarg->func = func;
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funcarg->arg = arg;
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if (thr_create(0, 0, new_func, funcarg,
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THR_DETACHED | THR_NEW_LWP, &tid)) {
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perror("thr_create");
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free((void *) funcarg);
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success = -1;
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}
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return tid;
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}
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long
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PyThread_get_thread_ident(void)
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{
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if (!initialized)
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PyThread_init_thread();
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return thr_self();
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}
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static void
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do_PyThread_exit_thread(int no_cleanup)
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{
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dprintf(("PyThread_exit_thread called\n"));
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if (!initialized)
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if (no_cleanup)
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_exit(0);
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else
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exit(0);
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thr_exit(0);
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}
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void
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PyThread_exit_thread(void)
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{
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do_PyThread_exit_thread(0);
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}
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void
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PyThread__exit_thread(void)
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{
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do_PyThread_exit_thread(1);
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}
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#ifndef NO_EXIT_PROG
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static void
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do_PyThread_exit_prog(int status, int no_cleanup)
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{
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dprintf(("PyThread_exit_prog(%d) called\n", status));
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if (!initialized)
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if (no_cleanup)
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_exit(status);
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else
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exit(status);
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if (no_cleanup)
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_exit(status);
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else
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exit(status);
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}
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void
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PyThread_exit_prog(int status)
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{
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do_PyThread_exit_prog(status, 0);
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}
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void
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PyThread__exit_prog(int status)
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{
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do_PyThread_exit_prog(status, 1);
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}
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#endif /* NO_EXIT_PROG */
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/*
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* Lock support.
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*/
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PyThread_type_lock
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PyThread_allocate_lock(void)
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{
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mutex_t *lock;
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dprintf(("PyThread_allocate_lock called\n"));
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if (!initialized)
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PyThread_init_thread();
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lock = (mutex_t *) malloc(sizeof(mutex_t));
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if (mutex_init(lock, USYNC_THREAD, 0)) {
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perror("mutex_init");
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free((void *) lock);
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lock = 0;
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}
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dprintf(("PyThread_allocate_lock() -> %p\n", lock));
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return (PyThread_type_lock) lock;
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}
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void
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PyThread_free_lock(PyThread_type_lock lock)
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{
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dprintf(("PyThread_free_lock(%p) called\n", lock));
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mutex_destroy((mutex_t *) lock);
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free((void *) lock);
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}
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int
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PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
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{
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int success;
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dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
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if (waitflag)
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success = mutex_lock((mutex_t *) lock);
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else
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success = mutex_trylock((mutex_t *) lock);
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if (success < 0)
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perror(waitflag ? "mutex_lock" : "mutex_trylock");
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else
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success = !success; /* solaris does it the other way round */
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dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
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return success;
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}
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void
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PyThread_release_lock(PyThread_type_lock lock)
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{
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dprintf(("PyThread_release_lock(%p) called\n", lock));
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if (mutex_unlock((mutex_t *) lock))
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perror("mutex_unlock");
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}
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