转：CreateEvent函数在多线程中使用及实例

最新推荐文章于 2025-05-22 10:01:04 发布

转载最新推荐文章于 2025-05-22 10:01:04 发布 · 82 阅读

0 ·

CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/killer-xc/p/6612220.html

本文提供了一个使用Windows API中的CreateEvent函数创建手动重置事件的例子，并演示了如何通过两个线程对该事件进行等待和响应。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

测试1：

bManualReset：TRUE
bInitialState：TRUE

CreateEvent(NULL, TRUE, TRUE, NULL); //使用手动重置为无信号状态，初始化时有信号状态

example.cpp

#include "iostream"
#include "windows.h"
using namespace std;

DWORD WINAPI ThreadProc1(LPVOID lpParam);
DWORD WINAPI ThreadProc2(LPVOID lpParam);
HANDLE hEvent = NULL;
HANDLE hThread1 = NULL;
HANDLE hThread2 = NULL;
int main(int argc, char *args[])
{
    <span style="color:#ff0000;">hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)</span>; //使用手动重置为无信号状态，初始化时有信号状态
    //hEvent = CreateEvent(NULL, FALSE, TRUE, NULL); //当一个等待线程被释放时，自动重置为无信号状态，初始是有信号状态
    //if (SetEvent(hEvent))
    //{
    //    cout << "setEvent 成功" <<endl;
    //}
    hThread1 = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)ThreadProc1, NULL, 0,NULL);
    Sleep(200);
    hThread2 = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)ThreadProc2, NULL, 0,NULL);
    Sleep(200);
    if ( NULL == hThread1)
    {
        cout <<"create thread fail!";
    }
    //DWORD dCount = ResumeThread(hThread);
    //cout << LOWORD(dCount) << endl;
    return 0;
}
DWORD WINAPI ThreadProc1(LPVOID lpParam)
{
    cout <<"in thread1@!"<<endl;
    
    DWORD dReturn = WaitForSingleObject(hEvent,INFINITE);
    
    if ( WAIT_OBJECT_0 == dReturn)
    {
        cout <<" thread1 signaled ! "<<endl;
    }
    cout <<"in thread1 --signal"<<endl;
    
    //SetEvent(hEvent);
    return 0;
}
DWORD WINAPI ThreadProc2(LPVOID lpParam)
{
    cout <<"in thread2@!"<<endl;
    
    DWORD dReturn = WaitForSingleObject(hEvent,INFINITE);
    
    if ( WAIT_OBJECT_0 == dReturn)
    {
        cout <<"thread2 signaled ! "<<endl;
    }
    cout <<"in thread2--signal"<<endl;
    
    return 0;
}

转载于:https://www.cnblogs.com/killer-xc/p/6612220.html