wycond.h

一个不错

/* Copyright is licensed under GNU LGPL.                 by I.J.Wang 2003

   WyCond is for the thread to suspend execution waiting to resume
*/

#ifndef WYCOND_H__
#define WYCOND_H__

#define WYCOND_VERSION 31

#include "wymutex.h"
#include "wytimespec.h"
#include <signal.h>   // for sig_atomic_t

class WyCond {
  public:
    static const char class_name[];
    WY_THROW_REPLY;

    WyCond() WY__TSPC();

    ~WyCond() WY__TSPC();

    void signal(void) WY__TSPC();

    void broadcast(void) WY__TSPC();

    WyRet wait(WyLock &mtx);

    WyRet wait(WyLock &mtx, WyTimeSpec abstime);

  private:
   #ifndef NDEBUG
    volatile sig_atomic_t _sig;                // class signature
   #endif
    ::pthread_cond_t  _cond;

    WyCond(const WyCond&);                     // no copy constructor 
    const WyCond& operator =(const WyCond&);   // no assign operator
    bool operator ==(const WyCond&);           // no equal operator
};

#endif