mirror/RetroArch
1
0
Fork 0
mirror of https://github.com/libretro/RetroArch synced 2025-03-28 19:20:35 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #10412 from jdgleaver/task-fix

Browse Source 
Fix task deadlocks
This commit is contained in:
Autechre 2020-04-06 15:25:25 +02:00 committed by GitHub
commit 304e13ac16
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
libretro-common/queues/task_queue.c
View File

@ -313,23 +313,20 @@ static scond_t *worker_cond = NULL;
static sthread_t *worker_thread = NULL;
static bool worker_continue = true; /* use running_lock when touching it */
/* 'queue_lock' must be held for the duration of this function */
static void task_queue_remove(task_queue_t *queue, retro_task_t *task)
{
retro_task_t *t = NULL;
retro_task_t *front = NULL;
slock_lock(queue_lock);
front = queue->front;
slock_unlock(queue_lock);
/* Remove first element if needed */
if (task == front)
{
slock_lock(queue_lock);
queue->front = task->next;
if (queue->back == task) /* if only element, also update back */
queue->back = NULL;
slock_unlock(queue_lock);
task->next = NULL;
return;
}
@ -348,10 +345,8 @@ static void task_queue_remove(task_queue_t *queue, retro_task_t *task)
/* When removing the tail of the queue, update the tail pointer */
if (queue->back == task)
{
slock_lock(queue_lock);
if (queue->back == task)
queue->back = t;
slock_unlock(queue_lock);
}
break;
}
@ -517,6 +512,7 @@ static void threaded_worker(void *userdata)
{
task_queue_remove(&tasks_running, task);
task_queue_put(&tasks_running, task);
scond_signal(worker_cond);
}
slock_unlock(queue_lock);
slock_unlock(running_lock);
@ -525,7 +521,9 @@ static void threaded_worker(void *userdata)
{
/* Remove task from running queue */
slock_lock(running_lock);
slock_lock(queue_lock);
task_queue_remove(&tasks_running, task);
slock_unlock(queue_lock);
slock_unlock(running_lock);
/* Add task to finished queue */