cpython-lru_cache-weakref: Python/thread

annotate Python/thread_atheos.h @ 53479:785ea299fe23

Merged revisions 71976 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r71976 | mark.dickinson | 2009-04-26 20:54:55 +0100 (Sun, 26 Apr 2009) | 2 lines Fix typo in function name ........

author	Mark Dickinson <dickinsm@gmail.com>
date	Sun, 26 Apr 2009 20:02:24 +0000
parents	bec1b942e0bc
children	e38335d4df91 df5719c298db

rev	line source
23777 bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	1 /* Threading for AtheOS.
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	2 Based on thread_beos.h. */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	3
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	4 #include <atheos/threads.h>
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	5 #include <atheos/semaphore.h>
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	6 #include <atheos/atomic.h>
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	7 #include <errno.h>
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	8 #include <string.h>
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	9
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	10 /* Missing decl from threads.h */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	11 extern int exit_thread(int);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	12
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	13
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	14 /* Undefine FASTLOCK to play with simple semaphores. */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	15 #define FASTLOCK
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	16
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	17
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	18 #ifdef FASTLOCK
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	19
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	20 /* Use an atomic counter and a semaphore for maximum speed. */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	21 typedef struct fastmutex {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	22 sem_id sem;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	23 atomic_t count;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	24 } fastmutex_t;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	25
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	26
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	27 static int fastmutex_create(const char name, fastmutex_t mutex);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	28 static int fastmutex_destroy(fastmutex_t * mutex);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	29 static int fastmutex_lock(fastmutex_t * mutex);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	30 static int fastmutex_timedlock(fastmutex_t * mutex, bigtime_t timeout);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	31 static int fastmutex_unlock(fastmutex_t * mutex);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	32
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	33
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	34 static int fastmutex_create(const char name, fastmutex_t mutex)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	35 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	36 mutex->count = 0;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	37 mutex->sem = create_semaphore(name, 0, 0);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	38 return (mutex->sem < 0) ? -1 : 0;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	39 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	40
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	41
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	42 static int fastmutex_destroy(fastmutex_t * mutex)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	43 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	44 if (fastmutex_timedlock(mutex, 0) == 0 \|\| errno == EWOULDBLOCK) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	45 return delete_semaphore(mutex->sem);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	46 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	47 return 0;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	48 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	49
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	50
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	51 static int fastmutex_lock(fastmutex_t * mutex)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	52 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	53 atomic_t prev = atomic_add(&mutex->count, 1);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	54 if (prev > 0)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	55 return lock_semaphore(mutex->sem);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	56 return 0;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	57 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	58
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	59
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	60 static int fastmutex_timedlock(fastmutex_t * mutex, bigtime_t timeout)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	61 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	62 atomic_t prev = atomic_add(&mutex->count, 1);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	63 if (prev > 0)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	64 return lock_semaphore_x(mutex->sem, 1, 0, timeout);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	65 return 0;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	66 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	67
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	68
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	69 static int fastmutex_unlock(fastmutex_t * mutex)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	70 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	71 atomic_t prev = atomic_add(&mutex->count, -1);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	72 if (prev > 1)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	73 return unlock_semaphore(mutex->sem);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	74 return 0;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	75 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	76
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	77
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	78 #endif /* FASTLOCK */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	79
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	80
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	81 /*
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	82 * Initialization.
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	83 *
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	84 */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	85 static void PyThread__init_thread(void)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	86 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	87 /* Do nothing. */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	88 return;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	89 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	90
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	91
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	92 /*
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	93 * Thread support.
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	94 *
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	95 */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	96
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	97 static atomic_t thread_count = 0;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	98
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	99 long PyThread_start_new_thread(void (func) (void ), void *arg)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	100 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	101 status_t success = -1;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	102 thread_id tid;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	103 char name[OS_NAME_LENGTH];
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	104 atomic_t this_thread;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	105
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	106 dprintf(("PyThread_start_new_thread called\n"));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	107
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	108 this_thread = atomic_add(&thread_count, 1);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	109 PyOS_snprintf(name, sizeof(name), "python thread (%d)", this_thread);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	110
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	111 tid = spawn_thread(name, func, NORMAL_PRIORITY, 0, arg);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	112 if (tid < 0) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	113 dprintf(("PyThread_start_new_thread spawn_thread failed: %s\n", strerror(errno)));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	114 } else {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	115 success = resume_thread(tid);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	116 if (success < 0) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	117 dprintf(("PyThread_start_new_thread resume_thread failed: %s\n", strerror(errno)));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	118 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	119 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	120
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	121 return (success < 0 ? -1 : tid);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	122 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	123
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	124
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	125 long PyThread_get_thread_ident(void)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	126 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	127 return get_thread_id(NULL);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	128 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	129
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	130
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	131 static void do_PyThread_exit_thread(int no_cleanup)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	132 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	133 dprintf(("PyThread_exit_thread called\n"));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	134
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	135 /* Thread-safe way to read a variable without a mutex: */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	136 if (atomic_add(&thread_count, 0) == 0) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	137 /* No threads around, so exit main(). */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	138 if (no_cleanup)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	139 _exit(0);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	140 else
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	141 exit(0);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	142 } else {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	143 /* We're a thread */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	144 exit_thread(0);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	145 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	146 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	147
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	148
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	149 void PyThread_exit_thread(void)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	150 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	151 do_PyThread_exit_thread(0);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	152 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	153
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	154
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	155 void PyThread__exit_thread(void)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	156 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	157 do_PyThread_exit_thread(1);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	158 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	159
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	160
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	161 #ifndef NO_EXIT_PROG
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	162 static void do_PyThread_exit_prog(int status, int no_cleanup)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	163 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	164 dprintf(("PyThread_exit_prog(%d) called\n", status));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	165
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	166 /* No need to do anything, the threads get torn down if main()exits. */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	167 if (no_cleanup)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	168 _exit(status);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	169 else
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	170 exit(status);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	171 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	172
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	173
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	174 void PyThread_exit_prog(int status)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	175 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	176 do_PyThread_exit_prog(status, 0);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	177 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	178
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	179
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	180 void PyThread__exit_prog(int status)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	181 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	182 do_PyThread_exit_prog(status, 1);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	183 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	184 #endif /* NO_EXIT_PROG */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	185
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	186
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	187 /*
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	188 * Lock support.
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	189 *
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	190 */
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	191
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	192 static atomic_t lock_count = 0;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	193
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	194 PyThread_type_lock PyThread_allocate_lock(void)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	195 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	196 #ifdef FASTLOCK
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	197 fastmutex_t *lock;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	198 #else
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	199 sem_id sema;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	200 #endif
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	201 char name[OS_NAME_LENGTH];
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	202 atomic_t this_lock;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	203
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	204 dprintf(("PyThread_allocate_lock called\n"));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	205
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	206 #ifdef FASTLOCK
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	207 lock = (fastmutex_t *) malloc(sizeof(fastmutex_t));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	208 if (lock == NULL) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	209 dprintf(("PyThread_allocate_lock failed: out of memory\n"));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	210 return (PyThread_type_lock) NULL;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	211 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	212 #endif
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	213 this_lock = atomic_add(&lock_count, 1);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	214 PyOS_snprintf(name, sizeof(name), "python lock (%d)", this_lock);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	215
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	216 #ifdef FASTLOCK
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	217 if (fastmutex_create(name, lock) < 0) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	218 dprintf(("PyThread_allocate_lock failed: %s\n",
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	219 strerror(errno)));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	220 free(lock);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	221 lock = NULL;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	222 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	223 dprintf(("PyThread_allocate_lock()-> %p\n", lock));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	224 return (PyThread_type_lock) lock;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	225 #else
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	226 sema = create_semaphore(name, 1, 0);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	227 if (sema < 0) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	228 dprintf(("PyThread_allocate_lock failed: %s\n",
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	229 strerror(errno)));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	230 sema = 0;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	231 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	232 dprintf(("PyThread_allocate_lock()-> %p\n", sema));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	233 return (PyThread_type_lock) sema;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	234 #endif
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	235 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	236
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	237
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	238 void PyThread_free_lock(PyThread_type_lock lock)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	239 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	240 dprintf(("PyThread_free_lock(%p) called\n", lock));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	241
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	242 #ifdef FASTLOCK
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	243 if (fastmutex_destroy((fastmutex_t *) lock) < 0) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	244 dprintf(("PyThread_free_lock(%p) failed: %s\n", lock,
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	245 strerror(errno)));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	246 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	247 free(lock);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	248 #else
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	249 if (delete_semaphore((sem_id) lock) < 0) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	250 dprintf(("PyThread_free_lock(%p) failed: %s\n", lock,
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	251 strerror(errno)));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	252 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	253 #endif
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	254 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	255
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	256
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	257 int PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	258 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	259 int retval;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	260
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	261 dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock,
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	262 waitflag));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	263
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	264 #ifdef FASTLOCK
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	265 if (waitflag)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	266 retval = fastmutex_lock((fastmutex_t *) lock);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	267 else
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	268 retval = fastmutex_timedlock((fastmutex_t *) lock, 0);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	269 #else
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	270 if (waitflag)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	271 retval = lock_semaphore((sem_id) lock);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	272 else
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	273 retval = lock_semaphore_x((sem_id) lock, 1, 0, 0);
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	274 #endif
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	275 if (retval < 0) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	276 dprintf(("PyThread_acquire_lock(%p, %d) failed: %s\n",
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	277 lock, waitflag, strerror(errno)));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	278 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	279 dprintf(("PyThread_acquire_lock(%p, %d)-> %d\n", lock, waitflag,
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	280 retval));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	281 return retval < 0 ? 0 : 1;
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	282 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	283
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	284
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	285 void PyThread_release_lock(PyThread_type_lock lock)
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	286 {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	287 dprintf(("PyThread_release_lock(%p) called\n", lock));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	288
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	289 #ifdef FASTLOCK
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	290 if (fastmutex_unlock((fastmutex_t *) lock) < 0) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	291 dprintf(("PyThread_release_lock(%p) failed: %s\n", lock,
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	292 strerror(errno)));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	293 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	294 #else
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	295 if (unlock_semaphore((sem_id) lock) < 0) {
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	296 dprintf(("PyThread_release_lock(%p) failed: %s\n", lock,
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	297 strerror(errno)));
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	298 }
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	299 #endif
bec1b942e0bc Patch #488073: AtheOS port. Martin v. Löwis <martin@v.loewis.de> parents: diff changeset	300 }

Mercurial > cpython-lru_cache-weakref

annotate Python/thread_atheos.h @ 53479:785ea299fe23