面向对象与基于对象学习记录 thread举例

/********************************************************************/
* @file
* @author def< qq group: 324164944 >
* @blog http://www.cnblogs.com/itdef/
* @brief
/********************************************************************/

/*******************************************************************************
* @file
* @author def< qq group: 324164944 >
* @blog  http://www.cnblogs.com/itdef/ 
* @brief
/*******************************************************************************/
 
#include "stdafx.h"
#include <iostream>
#include <windows.h>
 
using namespace std;
 
class CThread{
public:
    CThread();
    virtual ~CThread();
    bool Start();
    void Join();
    static DWORD WINAPI ThreadProc( LPVOID lpParameter);
    virtual void Run() = 0;
private:    
    HANDLE  hThread_;
    DWORD   dwThreadId_;
};
 
CThread::CThread():
hThread_(NULL),dwThreadId_(0)
{
    cout << "Thread ..." << endl;
}
 
CThread::~CThread()
{
    if(hThread_ != NULL)
        CloseHandle(hThread_);
    cout << "~Thread ..." << endl;
}
 
bool CThread::Start()
{
    bool bRet = false;
    hThread_ = CreateThread( 
        NULL,              // default security attributes
        0,                 // use default stack size  
        ThreadProc,          // thread function 
        this,             // argument to thread function 
        0,                 // use default creation flags 
        &dwThreadId_);   // returns the thread identifier 
 
    if(hThread_)
    {
        bRet = true;
    }
    return bRet;
}
 
void CThread::Join()
{
    WaitForSingleObject(hThread_,3000);
}
 
DWORD CThread::ThreadProc( LPVOID lpParameter)
{
    CThread* thread = static_cast<CThread*>(lpParameter);
    thread->Run();
    return NULL;
}
 
class CMyThread:public CThread
{
public:
    void Run(){ cout << "my thread..." << endl;}
};
 
 
 
int _tmain(int argc, _TCHAR* argv[])
{
　　CMyThread thread;
　　thread.Start();　　
　　thread.Join(); 
　　return 0; 
}

基类是最基本的几个元素线程ID 创建进程的函数start 运行指定的线程函数run 以及等待函数join()

使用的时候直接继承在run函数中执行自己想执行的线程处理即可。

基于对象则未使用继承等特性，使用bind function这对利器来实现回调

#include <windows.h>
#include <iostream>
#include <boost/function.hpp>
 
class CThread
{
public:
    typedef boost::function<void ()> ThreadFunc;
    explicit CThread(const ThreadFunc& func);
    ~CThread();
 
    void Start();
    void Join();
private:
    static DWORD WINAPI ThreadProc(LPVOID arg);
    void Run();
    ThreadFunc func_;
    HANDLE hThread_;
 
};
 
void CThread::Start()
{
    hThread_ = CreateThread(
        NULL,              // default security attributes
        0,                 // use default stack size 
        ThreadProc,          // thread function
        this,             // argument to thread function
        0,                 // use default creation flags
        NULL);   // returns the thread identifier
}
 
 
CThread::CThread(const ThreadFunc& func):
hThread_(NULL),func_(func)
{
    std::cout << "CThread()..." << std::endl;
}
 
void CThread::Join()
{
    WaitForSingleObject(hThread_,3000);
}
 
CThread::~CThread()
{
    if(hThread_)
        CloseHandle(hThread_);
    std::cout << "~CThread()..." << std::endl;
}
 
void CThread::Run()
{
    func_();
}
 
 
DWORD CThread::ThreadProc(LPVOID arg)
{
    CThread* thread = static_cast<CThread*>(arg);
    thread->Run();
    return NULL;
}
 
 
//======================================
 
void ThreadFunc()
{
    std::cout << "Enter thread function ...." << std::endl;
}
 
 
int _tmain(int argc, _TCHAR* argv[])
{
    CThread thread(ThreadFunc);
    thread.Start();
    thread.Join();
    return 0;
}