mirror of
				https://github.com/python/cpython.git
				synced 2025-10-27 03:34:32 +00:00 
			
		
		
		
	 f95a1b3c53
			
		
	
	
		f95a1b3c53
		
	
	
	
	
		
			
			svn+ssh://pythondev@svn.python.org/python/trunk ........ r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines Untabify C files. Will watch buildbots. ........
		
			
				
	
	
		
			112 lines
		
	
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			112 lines
		
	
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| 
 | |
| #ifdef MACH_C_THREADS
 | |
| #include <mach/cthreads.h>
 | |
| #endif
 | |
| 
 | |
| #ifdef HURD_C_THREADS
 | |
| #include <cthreads.h>
 | |
| #endif
 | |
| 
 | |
| /*
 | |
|  * Initialization.
 | |
|  */
 | |
| static void
 | |
| PyThread__init_thread(void)
 | |
| {
 | |
| #ifndef HURD_C_THREADS
 | |
|     /* Roland McGrath said this should not be used since this is
 | |
|     done while linking to threads */
 | |
|     cthread_init();
 | |
| #else
 | |
| /* do nothing */
 | |
|     ;
 | |
| #endif
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * Thread support.
 | |
|  */
 | |
| long
 | |
| PyThread_start_new_thread(void (*func)(void *), void *arg)
 | |
| {
 | |
|     int success = 0;            /* init not needed when SOLARIS_THREADS and */
 | |
|                 /* C_THREADS implemented properly */
 | |
| 
 | |
|     dprintf(("PyThread_start_new_thread called\n"));
 | |
|     if (!initialized)
 | |
|         PyThread_init_thread();
 | |
|     /* looks like solaris detaches the thread to never rejoin
 | |
|      * so well do it here
 | |
|      */
 | |
|     cthread_detach(cthread_fork((cthread_fn_t) func, arg));
 | |
|     return success < 0 ? -1 : 0;
 | |
| }
 | |
| 
 | |
| long
 | |
| PyThread_get_thread_ident(void)
 | |
| {
 | |
|     if (!initialized)
 | |
|         PyThread_init_thread();
 | |
|     return (long) cthread_self();
 | |
| }
 | |
| 
 | |
| void
 | |
| PyThread_exit_thread(void)
 | |
| {
 | |
|     dprintf(("PyThread_exit_thread called\n"));
 | |
|     if (!initialized)
 | |
|         exit(0);
 | |
|     cthread_exit(0);
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * Lock support.
 | |
|  */
 | |
| PyThread_type_lock
 | |
| PyThread_allocate_lock(void)
 | |
| {
 | |
|     mutex_t lock;
 | |
| 
 | |
|     dprintf(("PyThread_allocate_lock called\n"));
 | |
|     if (!initialized)
 | |
|         PyThread_init_thread();
 | |
| 
 | |
|     lock = mutex_alloc();
 | |
|     if (mutex_init(lock)) {
 | |
|         perror("mutex_init");
 | |
|         free((void *) lock);
 | |
|         lock = 0;
 | |
|     }
 | |
|     dprintf(("PyThread_allocate_lock() -> %p\n", lock));
 | |
|     return (PyThread_type_lock) lock;
 | |
| }
 | |
| 
 | |
| void
 | |
| PyThread_free_lock(PyThread_type_lock lock)
 | |
| {
 | |
|     dprintf(("PyThread_free_lock(%p) called\n", lock));
 | |
|     mutex_free(lock);
 | |
| }
 | |
| 
 | |
| int
 | |
| PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
 | |
| {
 | |
|     int success = FALSE;
 | |
| 
 | |
|     dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
 | |
|     if (waitflag) {             /* blocking */
 | |
|         mutex_lock((mutex_t)lock);
 | |
|         success = TRUE;
 | |
|     } else {                    /* non blocking */
 | |
|         success = mutex_try_lock((mutex_t)lock);
 | |
|     }
 | |
|     dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
 | |
|     return success;
 | |
| }
 | |
| 
 | |
| void
 | |
| PyThread_release_lock(PyThread_type_lock lock)
 | |
| {
 | |
|     dprintf(("PyThread_release_lock(%p) called\n", lock));
 | |
|     mutex_unlock((mutex_t )lock);
 | |
| }
 |