ArCondition.h

/*
MobileRobots Advanced Robotics Interface for Applications (ARIA)
Copyright (C) 2004, 2005 ActivMedia Robotics LLC
Copyright (C) 2006, 2007 MobileRobots Inc.

     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 
MobileRobots for information about a commercial version of ARIA at 
robots@mobilerobots.com or 
MobileRobots Inc, 19 Columbia Drive, Amherst, NH 03031; 800-639-9481
*/

#ifndef ARCONDITION_H
#define ARCONDITION_H


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


class ArCondition
{
public:

  typedef enum {
    STATUS_FAILED=1, 
    STATUS_FAILED_DESTROY, 
    STATUS_FAILED_INIT, 
    STATUS_WAIT_TIMEDOUT, 
    STATUS_WAIT_INTR, 
    STATUS_MUTEX_FAILED_INIT, 
    STATUS_MUTEX_FAILED 
  };

#ifdef WIN32
  typedef HANDLE CondType;
#else
  typedef pthread_cond_t CondType;
#endif

  AREXPORT ArCondition();
  AREXPORT virtual ~ArCondition();

  AREXPORT int signal();
  AREXPORT int broadcast();
  AREXPORT int wait();
  AREXPORT int timedWait(unsigned int msecs);
  AREXPORT const char *getError(int messageNumber) const;

protected:

  static ArStrMap ourStrMap;

  bool myFailedInit;
  CondType myCond;
#ifdef WIN32
  int myCount;
#else
  ArMutex myMutex;
#endif
};


#endif // ARCONDITION_H

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