thread_spinlock.h

多线程库

#ifndef __THREADS_SPINLOCK_H
#define __THREADS_SPINLOCK_H

/**
 * A spinlock, is a primitive semaphore.  With it we acquire
 * a unique lock, and release that lock.
 */
struct spinlock {
  int s_spinlock;

  spinlock()               { s_spinlock = 0; }

  int testandset();

  void acquire();
  void release();
};

#endif /* __THREADS_SPINLOCK_H */