基于CAS实现自旋锁

Posted 2023-06-21 simp00

#include<aomic>

class SpinLock
public:
    SpinLock():flag_(false)
    void lock()
      bool except = false;
      while(!flag_.compare_exchange_weak(expect,true))
        
        expect = false;
      

    

void unlock()

  flag_.store(false);

private:
std::atmoic<bool>flag_;
  ;