diff options
Diffstat (limited to 'source/blender/blenlib')
-rw-r--r-- | source/blender/blenlib/BLI_threads.h | 1 | ||||
-rw-r--r-- | source/blender/blenlib/intern/threads.c | 51 |
2 files changed, 40 insertions, 12 deletions
diff --git a/source/blender/blenlib/BLI_threads.h b/source/blender/blenlib/BLI_threads.h index b13da9f0dd4..fb8771722c1 100644 --- a/source/blender/blenlib/BLI_threads.h +++ b/source/blender/blenlib/BLI_threads.h @@ -136,6 +136,7 @@ void *BLI_thread_queue_pop(ThreadQueue *queue); void *BLI_thread_queue_pop_timeout(ThreadQueue *queue, int ms); int BLI_thread_queue_size(ThreadQueue *queue); +void BLI_thread_queue_wait_finish(ThreadQueue *queue); void BLI_thread_queue_nowait(ThreadQueue *queue); #endif diff --git a/source/blender/blenlib/intern/threads.c b/source/blender/blenlib/intern/threads.c index f9f677d7c22..dc4c15a82fc 100644 --- a/source/blender/blenlib/intern/threads.c +++ b/source/blender/blenlib/intern/threads.c @@ -520,8 +520,10 @@ void BLI_insert_work(ThreadedWorker *worker, void *param) struct ThreadQueue { GSQueue *queue; pthread_mutex_t mutex; - pthread_cond_t cond; - int nowait; + pthread_cond_t push_cond; + pthread_cond_t finish_cond; + volatile int nowait; + volatile int cancelled; }; ThreadQueue *BLI_thread_queue_init(void) @@ -532,14 +534,17 @@ ThreadQueue *BLI_thread_queue_init(void) queue->queue = BLI_gsqueue_new(sizeof(void *)); pthread_mutex_init(&queue->mutex, NULL); - pthread_cond_init(&queue->cond, NULL); + pthread_cond_init(&queue->push_cond, NULL); + pthread_cond_init(&queue->finish_cond, NULL); return queue; } void BLI_thread_queue_free(ThreadQueue *queue) { - pthread_cond_destroy(&queue->cond); + /* destroy everything, assumes no one is using queue anymore */ + pthread_cond_destroy(&queue->finish_cond); + pthread_cond_destroy(&queue->push_cond); pthread_mutex_destroy(&queue->mutex); BLI_gsqueue_free(queue->queue); @@ -554,7 +559,7 @@ void BLI_thread_queue_push(ThreadQueue *queue, void *work) BLI_gsqueue_push(queue->queue, &work); /* signal threads waiting to pop */ - pthread_cond_signal(&queue->cond); + pthread_cond_signal(&queue->push_cond); pthread_mutex_unlock(&queue->mutex); } @@ -565,11 +570,15 @@ void *BLI_thread_queue_pop(ThreadQueue *queue) /* wait until there is work */ pthread_mutex_lock(&queue->mutex); while (BLI_gsqueue_is_empty(queue->queue) && !queue->nowait) - pthread_cond_wait(&queue->cond, &queue->mutex); - + pthread_cond_wait(&queue->push_cond, &queue->mutex); + /* if we have something, pop it */ - if (!BLI_gsqueue_is_empty(queue->queue)) + if (!BLI_gsqueue_is_empty(queue->queue)) { BLI_gsqueue_pop(queue->queue, &work); + + if(BLI_gsqueue_is_empty(queue->queue)) + pthread_cond_broadcast(&queue->finish_cond); + } pthread_mutex_unlock(&queue->mutex); @@ -623,16 +632,20 @@ void *BLI_thread_queue_pop_timeout(ThreadQueue *queue, int ms) /* wait until there is work */ pthread_mutex_lock(&queue->mutex); while (BLI_gsqueue_is_empty(queue->queue) && !queue->nowait) { - if (pthread_cond_timedwait(&queue->cond, &queue->mutex, &timeout) == ETIMEDOUT) + if (pthread_cond_timedwait(&queue->push_cond, &queue->mutex, &timeout) == ETIMEDOUT) break; else if (PIL_check_seconds_timer() - t >= ms * 0.001) break; } /* if we have something, pop it */ - if (!BLI_gsqueue_is_empty(queue->queue)) + if (!BLI_gsqueue_is_empty(queue->queue)) { BLI_gsqueue_pop(queue->queue, &work); - + + if(BLI_gsqueue_is_empty(queue->queue)) + pthread_cond_broadcast(&queue->finish_cond); + } + pthread_mutex_unlock(&queue->mutex); return work; @@ -656,10 +669,23 @@ void BLI_thread_queue_nowait(ThreadQueue *queue) queue->nowait = 1; /* signal threads waiting to pop */ - pthread_cond_signal(&queue->cond); + pthread_cond_broadcast(&queue->push_cond); + pthread_mutex_unlock(&queue->mutex); +} + +void BLI_thread_queue_wait_finish(ThreadQueue *queue) +{ + /* wait for finish condition */ + pthread_mutex_lock(&queue->mutex); + + while(!BLI_gsqueue_is_empty(queue->queue)) + pthread_cond_wait(&queue->finish_cond, &queue->mutex); + pthread_mutex_unlock(&queue->mutex); } +/* ************************************************ */ + void BLI_begin_threaded_malloc(void) { if (thread_levels == 0) { @@ -674,3 +700,4 @@ void BLI_end_threaded_malloc(void) if (thread_levels == 0) MEM_set_lock_callback(NULL, NULL); } + |