threads_1/posix/h/cond_var.hpp

См. документацию.

/*

threads_1: Multithreading support library
Yauheni A. Akhotnikau (C) 2002-2003
eao197@yahoo.com
-------------------------------------------------

Permission is granted to anyone to use this software for any purpose on any
computer system, and to redistribute it freely, subject to the following
restrictions:

1. This software is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

2. The origin of this software must not be misrepresented, either by
   explicit claim or by omission.

3. Altered versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

-------------------------------------------------

*/
#if !defined( _THREADS_1__POSIX__COND_VAR_HPP_ )
#define _THREADS_1__POSIX__COND_VAR_HPP_

#include <unistd.h>
#include <pthread.h>

#include <cpp_util_2/h/nocopy.hpp>

#include <threads_1/h/threads.hpp>

#include <threads_1/posix/h/mutex_sem.hpp>

namespace threads_1
{

class _os_cond_var_t :
  public cpp_util_2::nocopy_t
{
  private :
    pthread_cond_t  m_event;

  public :
    inline
    _os_cond_var_t()
    {
      pthread_cond_t initial = PTHREAD_COND_INITIALIZER;
      m_event = initial;
    }
    inline
    ~_os_cond_var_t()
    {
      pthread_cond_destroy( &m_event );
    }

    inline void
    wait( _os_mutex_sem_t & mutex )
    {
      pthread_cond_wait( &m_event,
        &mutex.m_mutex_struct );
    }

    inline void
    notify_one()
    {
      pthread_cond_signal( &m_event );
    }
    
    inline void
    notify_all()
    {
      pthread_cond_broadcast( &m_event );
    }
};

} /* namespace threads_1 */

#endif

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