SoSensorManager.h

#ifndef COIN_SOSENSORMANAGER_H
#define COIN_SOSENSORMANAGER_H

/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
 * All rights reserved.
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 * this list of conditions and the following disclaimer.
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 * this software without specific prior written permission.
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\**************************************************************************/

#include <Inventor/SbBasic.h>

class SoDelayQueueSensor;
class SoTimerQueueSensor;
class SoTimerSensor;
class SbTime;

class COIN_DLL_API SoSensorManager {
public:
  SoSensorManager(void);
  ~SoSensorManager();

  void insertDelaySensor(SoDelayQueueSensor * s);
  void insertTimerSensor(SoTimerQueueSensor * s);
  void removeDelaySensor(SoDelayQueueSensor * s);
  void removeTimerSensor(SoTimerQueueSensor * s);

  void setChangedCallback(void (*sensorQueueChangedCB)(void *), void * data);

  void rescheduleTimer(SoTimerSensor * s);
  void removeRescheduledTimer(SoTimerQueueSensor * s);

  void processDelayQueue(SbBool isidle);
  void processImmediateQueue(void);
  void processTimerQueue(void);

  SbBool isDelaySensorPending(void);
  SbBool isTimerSensorPending(SbTime & tm);

  void setDelaySensorTimeout(const SbTime & t);
  const SbTime & getDelaySensorTimeout(void);

  int doSelect(int nfds, void * readfds, void * writefds,
               void * exceptfds, struct timeval * userTimeOut);

private:
  void notifyChanged(void);

  int mergeTimerQueues(void);
  int mergeDelayQueues(void);
  
  class SoSensorManagerP * pimpl;
  friend class SoSensorManagerP;
};

#endif // !COIN_SOSENSORMANAGER_H