mutex.h

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/**************************************************************************

   begin                : Sun Sep 10 2007
   copyright            : (C) 2007 by Ewald Arnold
   email                : log4sendpp at ewald-arnold dot de

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as
   published by the Free Software Foundation; either version 2 of the License,
   or (at your option) any later version.

   This program 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.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 **/


#ifndef LOG4SENDPP_MUTEX_H
#define LOG4SENDPP_MUTEX_H

#include <log4sendpp/log4sendpp.h>  // always first header

#ifdef __WIN32__
#include <windows.h>
#endif

#ifdef __unix__
#include <pthread.h>
#endif


LOG4SENDPP_NS_START


class LOG4SENDPP_API_DECL0 Mutex
{
 public:

   class LOG4SENDPP_API_DECL0 Locker
   {
    public:

     Locker(Mutex &mtx);

     ~Locker();

    private:

      Mutex *mutex;
   };

   class LOG4SENDPP_API_DECL0 TryLocker
   {
    public:

     TryLocker(Mutex &mtx);

     ~TryLocker();

     bool isLocked();

    private:

      Mutex *mutex;
      bool   locked;
   };

   Mutex();

   ~Mutex();

   void lock();

   void  unlock();

   bool tryLock();

 private:

#ifdef __WIN32__
   typedef HANDLE Handle;
   HANDLE   handle;
#else
   typedef pthread_mutex_t Handle;
   pthread_mutex_t handle;
#endif
};


LOG4SENDPP_NS_END


#endif // LOG4SENDPP_MUTEX_H

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