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Only queue one wakeup event per wait 

Queuing more than one can lead to a spurious wakeup on the next wait.
main
Cameron Gutman 2021-06-12 16:19:03 -05:00 committed by Sam Lantinga
parent c262569cd8
commit 105de64c2d
1 changed files with 3 additions and 0 deletions
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3
src/events/SDL_events.c
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@ -596,6 +596,9 @@ SDL_SendWakeupEvent()
if (!_this->wakeup_lock || SDL_LockMutex(_this->wakeup_lock) == 0) { if (!_this->wakeup_lock || SDL_LockMutex(_this->wakeup_lock) == 0) {
if (_this->wakeup_window) { if (_this->wakeup_window) {
_this->SendWakeupEvent(_this, _this->wakeup_window); _this->SendWakeupEvent(_this, _this->wakeup_window);
/* No more wakeup events needed until we enter a new wait */
_this->wakeup_window = NULL;
} }
if (_this->wakeup_lock) { if (_this->wakeup_lock) {
SDL_UnlockMutex(_this->wakeup_lock); SDL_UnlockMutex(_this->wakeup_lock);