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#ifndef __TRYABLE_SPIN_LOCK_HPP__
#define __TRYABLE_SPIN_LOCK_HPP__
#include <atomic>
// Taken from http://stackoverflow.com/questions/26583433/c11-implementation-of-spinlock-using-atomic
class TryableSpinLock {
std::atomic_flag locked = ATOMIC_FLAG_INIT ;
public:
void lock() {
while (locked.test_and_set(std::memory_order_acquire)) { ; }
}
// from http://stackoverflow.com/questions/19742993/implementing-a-spinlock-in-boost-example-neededhttp://stackoverflow.com/questions/19742993/implementing-a-spinlock-in-boost-example-needed
// is this legit?
bool try_lock() {
return !locked.test_and_set(std::memory_order_acquire);
}
void unlock() {
locked.clear(std::memory_order_release);
}
};
#endif //__TRYABLE_SPIN_LOCK_HPP__
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