/*
 * JobExecuterImpl.h
 *
 *  Created on: 2016年11月18日
 *      Author: nego
 */

#ifndef SERVICE_IMPL_JOBEXECUTERIMPL_H_
#define SERVICE_IMPL_JOBEXECUTERIMPL_H_

#include <pthread.h>
#include "MThreadedJobQImpl.h"

class JobI;
class MThreadedJobQImpl;

class JobExecuterImpl {
public:
	//This function stops the Executer. Your code should not call this method.?
	void stop();

	//This points to the CMThreadedJobQ to which this instace belongs.?
	MThreadedJobQImpl* m_pJobQ;

	//This contain the refarence to a instance of CJob or it's child class.
	//The executer remains idle if this is NULL. That is when no job to do.
	JobI* m_pJob2Do;

	//This is used as a Flag. Two defind constats are
	//defined for this variable, they are  STOP_WORKING (Value is  -1),
	//KEEP_WORKING (value is  0 ). If the m_flaag value is set to STOP_WORKING then
	//the thread associated with the instance exists, else that thread is keep working.
	int m_flag;

	//This pointer keep a reference to the thread that
	//is associated with the class.
	pthread_t pid;

	//This operation is responsible for executing a job. The CMThreadedJobQ
	//class will call this function to get a job done. User should not call
	//this method, this is only for the use of the implementation of the
	//multithreaded job queue.
	void execute(JobI* pJob);

	//This is the static thread function. This function is used while
	//creating the thread in the constructor.
	static void* ThreadFunction(void* pParam);

	//Constructor
	JobExecuterImpl(MThreadedJobQImpl *pJobQ);

	virtual ~JobExecuterImpl();

private:
	static pthread_mutex_t xLock;
};

#endif /* SERVICE_IMPL_JOBEXECUTERIMPL_H_ */