mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-08-22 03:33:22 +02:00
Thread: Make Barrier reusable
This commit is contained in:
parent
8c50833445
commit
3c710f9b10
@ -69,20 +69,19 @@ private:
|
||||
|
||||
class Barrier {
|
||||
public:
|
||||
explicit Barrier(size_t count_) : count(count_), waiting(0) {}
|
||||
explicit Barrier(size_t count_) : count(count_), waiting(0), generation(0) {}
|
||||
|
||||
/// Blocks until all "count" threads have called Sync()
|
||||
void Sync() {
|
||||
std::unique_lock<std::mutex> lk(mutex);
|
||||
|
||||
// TODO: broken when next round of Sync()s
|
||||
// is entered before all waiting threads return from the notify_all
|
||||
const size_t current_generation = generation;
|
||||
|
||||
if (++waiting == count) {
|
||||
generation++;
|
||||
waiting = 0;
|
||||
condvar.notify_all();
|
||||
} else {
|
||||
condvar.wait(lk, [&]{ return waiting == 0; });
|
||||
condvar.wait(lk, [this, current_generation]{ return current_generation != generation; });
|
||||
}
|
||||
}
|
||||
|
||||
@ -91,6 +90,7 @@ private:
|
||||
std::mutex mutex;
|
||||
const size_t count;
|
||||
size_t waiting;
|
||||
size_t generation; // Incremented once each time the barrier is used
|
||||
};
|
||||
|
||||
void SleepCurrentThread(int ms);
|
||||
|
Loading…
Reference in New Issue
Block a user