Mity CPU Platforms » MityDSP-L138 (ARM9 Based Platforms)

#include <semaphore.h>

namespace MityDSP {

/**

 *  The tcWatchdog class provides a simple abstraction for the linux

 *  watchdog device management.  Typical use pattern:

 *

 *  @code {

 *      

 *  tcWatchdog* pW = new tcWatchdog();

 *  int handle = pW->RegisterCheckpoint();

 *  pW->StartWatchDog(10);

 *

 *  while (!done)

 *  {

 *     /// do stuff

 *     pW->Checkin(handle);

 *  }

 *

 *  delete pW;

 *  

 *  @code }

 */

class tcWatchdog

{

public:

	tcWatchdog(const char* apDevice = "/dev/watchdog");

	virtual ~tcWatchdog(void);

	int StartWatchDog(int TimeoutSecs);

	int RegisterCheckpoint(void);

	int UnRegisterCheckpoint(int handle);

	int Checkin(int Checkpoint);

protected:

	volatile int	mnMask;

	volatile int	mnSet;

	sem_t		mhSem;

	char*		mpFileName;

	int		mnFd;

};

}