多线程代码段 自清理线程

自清理线程

#include "stdafx.h"

#include<iostream>
#include <memory>            // include auto_ptr
#include <process.h>        // include _beginthreadex _endthreadex;
using namespace std;


class CQTZ_Thread_AutoClear
{
    friend unsigned int __stdcall _THREAD_FUN_(LPVOID lpvData);
public:    
    //创建线程接口函数
    static bool Thread_Create(void)
    {
        CQTZ_Thread_AutoClear *_thread_obj=new CQTZ_Thread_AutoClear();
        return _thread_obj->_Thread_Active();
    }

    //
    virtual ~CQTZ_Thread_AutoClear(void)
    {
        cout<<"~CQTZ_Thread_AutoClear(void)"<<endl;
    }

    //线程任务接口函数
    virtual void Thread_Task(void)
    {
        int _start_data=12;
        for (int i=0; i<_start_data; i++)
        {
            ::Sleep(500);
            cout<<"thread id="<<::GetCurrentThreadId()<<" i="<<i<<endl;
        }
    }

private:
    CQTZ_Thread_AutoClear(void)
    {
        cout<<"CQTZ_Thread_AutoClear(void)"<<endl;
    }
    
    //创建线程
    bool _Thread_Active(void)
    {        
        HANDLE _hthread = (HANDLE)_beginthreadex(NULL,0,_THREAD_FUN_,this,0,0);        
        if (_hthread)
        {
            ::CloseHandle(_hthread);
            return true;
        }
        else
        {
            return false;
        }        
    }
    
};

//线程函数
unsigned int __stdcall _THREAD_FUN_(LPVOID lpvData)
{
    {    // CQTZ_Thread_AutoClear 对象要在 _endthreadex函数执行前清理 否则会内存泄漏
        CQTZ_Thread_AutoClear *pthread = (CQTZ_Thread_AutoClear *)lpvData;
        auto_ptr<CQTZ_Thread_AutoClear> _thread_ptr(pthread);
        pthread->Thread_Task();
    }
    
    _endthreadex(0);
    return 0;
}


//主线程函数
int _tmain(int argc, _TCHAR* argv[])
{
    CQTZ_Thread_AutoClear::Thread_Create();        
    system("pause");
    return 0;
}