single instance

singliton

/*
 * m_executor.h
 *
 *  Created on: 2014-8-30
 *      Author: casa
 */

#ifndef M_EXECUTOR_H_
#define M_EXECUTOR_H_

class Executor {
public:
	Executor();
	virtual ~Executor();

	static Executor *getInstance();

private:
	static Executor *executor_;
};

#endif /* M_EXECUTOR_H_ */


/*
 * m_executor.cpp
 *
 *  Created on: 2014-8-30
 *      Author: casa
 */

#include "m_executor.h"

Executor* Executor::executor_=0;

Executor::Executor() {
	// TODO Auto-generated constructor stub

}

Executor::~Executor() {
	// TODO Auto-generated destructor stub
}

Executor* Executor::getInstance() {
	if(executor_==0) {
		executor_=new Executor();
	}
	return executor_;
}