Files
snmalloc/src/ds/flaglock.h
2019-12-04 16:56:28 +00:00

25 lines
371 B
C++

#pragma once
#include "bits.h"
namespace snmalloc
{
class FlagLock
{
private:
std::atomic_flag& lock;
public:
FlagLock(std::atomic_flag& lock) : lock(lock)
{
while (lock.test_and_set(std::memory_order_acquire))
Aal::pause();
}
~FlagLock()
{
lock.clear(std::memory_order_release);
}
};
} // namespace snmalloc