事件对象编程示例

pctack

于 2012-10-24 14:54:44 发布

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本文详细介绍了如何在Windows系统中利用线程池技术创建多线程程序，通过自定义线程类和事件机制，实现线程间的高效协作与资源管理。重点阐述了线程类的构造、析构、线程回调函数的设计以及线程间同步机制的应用。

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#pragma once

#include <windows.h>

class CDaemonThread
{
public:
CDaemonThread(void);
~CDaemonThread(void);

static DWORD WINAPI ThreadProc(LPVOID lpParameter);

protected:
HANDLE m_hThread;
HANDLE m_hEvent;
};

CDaemonThread::CDaemonThread(void)
:m_hThread(NULL),
m_hEvent(NULL)
{
m_hEvent = CreateEvent(NULL,TRUE,FALSE,NULL);
if (m_hEvent != NULL)
{
m_hThread = CreateThread(NULL,0,CDaemonThread::ThreadProc,this,0,NULL);
}
}

CDaemonThread::~CDaemonThread(void)
{
if (m_hEvent != NULL)
{
SetEvent(m_hEvent);

  if (m_hThread != NULL)
  {
   if (WaitForSingleObject(m_hThread,1000) == WAIT_TIMEOUT)
    TerminateThread(m_hThread,0);
   CloseHandle(m_hThread);
  }

  CloseHandle(m_hEvent);
}
}

DWORD WINAPI CDaemonThread::ThreadProc(LPVOID lpParameter)
{
CDaemonThread* pThis = (CDaemonThread*)lpParameter;
DWORD dwRet = 0;
while(TRUE)
{
  dwRet = WaitForSingleObject(pThis->m_hEvent,100);
  if (dwRet == WAIT_OBJECT_0)
   return 0;
}
return 0;
}