ArMutex.h

/*
ActivMedia Robotics Interface for Applications (ARIA)
Copyright (C) 2004,2005 ActivMedia Robotics, LLC


     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU 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 General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

If you wish to redistribute ARIA under different terms, contact 
ActivMedia Robotics for information about a commercial version of ARIA at 
robots@activmedia.com or 
ActivMedia Robotics, 19 Columbia Drive, Amherst, NH 03031; 800-639-9481

*/

#ifndef ARMUTEX_H
#define ARMUTEX_H

#ifndef WIN32
#include <pthread.h>
#endif
#include <string>
#include "ariaTypedefs.h"



class ArMutex
{
public:

#ifdef WIN32
  typedef HANDLE MutexType;
#else
  typedef pthread_mutex_t MutexType;
#endif

  typedef enum {
    STATUS_FAILED_INIT=1, 
    STATUS_FAILED, 
    STATUS_ALREADY_LOCKED 
  } Status;

  ArMutex();
  virtual ~ArMutex();

  virtual int lock();
  virtual int tryLock();
  virtual int unlock();
  virtual const char * getError(int messageNumber) const;
  void setLog(bool log) { myLog = log; } 
  void setLogName(const char *logName) { myLogName = logName; } 
  virtual MutexType & getMutex() {return(myMutex);}

protected:

  bool myFailedInit;
  MutexType myMutex;
  ArStrMap myStrMap;
  bool myLog;
  std::string myLogName;
};


#endif // ARMUTEX_H

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