Differential D7475 Diff 23937 source/blender/blenlib/intern/threads.c

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source/blender/blenlib/intern/threads.c

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#endif		#endif

#ifdef USE_APPLE_OMP_FIX		#ifdef USE_APPLE_OMP_FIX
/* ************ libgomp (Apple gcc 4.2.1) TLS bug workaround ************* */		/* ************ libgomp (Apple gcc 4.2.1) TLS bug workaround ************* */
extern pthread_key_t gomp_tls_key;		extern pthread_key_t gomp_tls_key;
static void *thread_tls_data;		static void *thread_tls_data;
#endif		#endif

/* We're using one global task scheduler for all kind of tasks. */
static TaskScheduler *task_scheduler = NULL;

/* ******** basic thread control API **********		/* ******** basic thread control API **********
*		*
* Many thread cases have an X amount of jobs, and only an Y amount of		* Many thread cases have an X amount of jobs, and only an Y amount of
* threads are useful (typically amount of cpus)		* threads are useful (typically amount of cpus)
*		*
* This code can be used to start a maximum amount of 'thread slots', which		* This code can be used to start a maximum amount of 'thread slots', which
* then can be filled in a loop with an idle timer.		* then can be filled in a loop with an idle timer.
*		*
▲ Show 20 Lines • Show All 77 Lines • ▼ Show 20 Lines	void BLI_threadapi_init(void)
BLI_spin_init(&_malloc_lock);		BLI_spin_init(&_malloc_lock);
if (numaAPI_Initialize() == NUMAAPI_SUCCESS) {		if (numaAPI_Initialize() == NUMAAPI_SUCCESS) {
is_numa_available = true;		is_numa_available = true;
}		}
}		}

void BLI_threadapi_exit(void)		void BLI_threadapi_exit(void)
{		{
if (task_scheduler) {
BLI_task_scheduler_free(task_scheduler);
task_scheduler = NULL;
}
BLI_spin_end(&_malloc_lock);		BLI_spin_end(&_malloc_lock);
}		}

TaskScheduler *BLI_task_scheduler_get(void)
{
if (task_scheduler == NULL) {
int tot_thread = BLI_system_thread_count();

/* Do a lazy initialization, so it happens after
* command line arguments parsing
*/
task_scheduler = BLI_task_scheduler_create(tot_thread);
}

return task_scheduler;
}

/* tot = 0 only initializes malloc mutex in a safe way (see sequence.c)		/* tot = 0 only initializes malloc mutex in a safe way (see sequence.c)
* problem otherwise: scene render will kill of the mutex!		* problem otherwise: scene render will kill of the mutex!
*/		*/

void BLI_threadpool_init(ListBase threadbase, void (do_thread)(void ), int tot)		void BLI_threadpool_init(ListBase threadbase, void (do_thread)(void ), int tot)
{		{
int a;		int a;

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/* ************************************************ */		/* ************************************************ */

void BLI_threaded_malloc_begin(void)		void BLI_threaded_malloc_begin(void)
{		{
unsigned int level = atomic_fetch_and_add_u(&thread_levels, 1);		unsigned int level = atomic_fetch_and_add_u(&thread_levels, 1);
if (level == 0) {		if (level == 0) {
MEM_set_lock_callback(BLI_lock_malloc_thread, BLI_unlock_malloc_thread);		MEM_set_lock_callback(BLI_lock_malloc_thread, BLI_unlock_malloc_thread);
/* There is a little chance that two threads will need to access to a
* scheduler which was not yet created from main thread. which could
* cause scheduler created multiple times.
*/
BLI_task_scheduler_get();
}		}
}		}

void BLI_threaded_malloc_end(void)		void BLI_threaded_malloc_end(void)
{		{
unsigned int level = atomic_sub_and_fetch_u(&thread_levels, 1);		unsigned int level = atomic_sub_and_fetch_u(&thread_levels, 1);
if (level == 0) {		if (level == 0) {
MEM_set_lock_callback(NULL, NULL);		MEM_set_lock_callback(NULL, NULL);
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