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gpu_thread: Fix deadlock with threading idle state check.

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This commit is contained in:
bunnei 2019-02-09 11:37:11 -05:00
parent 63aa08acbe
commit 84ad81ee67
2 changed files with 11 additions and 7 deletions
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7
src/video_core/gpu_thread.h
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@ -70,6 +70,7 @@ using CommandData = std::variant<SubmitListCommand, SwapBuffersCommand, FlushReg
/// Struct used to synchronize the GPU thread
struct SynchState final {
std::atomic<bool> is_running{true};
std::atomic<bool> is_idle{true};
std::condition_variable signal_condition;
std::mutex signal_mutex;
std::condition_variable idle_condition;
@ -84,9 +85,9 @@ struct SynchState final {
CommandQueue* push_queue{&command_queues[0]};
CommandQueue* pop_queue{&command_queues[1]};
/// Returns true if the GPU thread should be idle, meaning there are no commands to process
bool IsIdle() const {
return command_queues[0].empty() && command_queues[1].empty();
void UpdateIdleState() {
std::lock_guard<std::mutex> lock{idle_mutex};
is_idle = command_queues[0].empty() && command_queues[1].empty();
}
};