事件对象的使用

// 07 事件对象的使用.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include <windows.h>

int g_n;
HANDLE  hEvent;
DWORD WINAPI ThreadPro1(LPVOID lpThreadParameter){
    for (int i = 0; i < 10000000; i++)
    {
        WaitForSingleObject(hEvent, -1);
        g_n++;
        printf("我在线程1：%d\n", g_n);
        Sleep(100);
        SetEvent(hEvent);
    }
    return 0;
}
DWORD WINAPI ThreadPro2(LPVOID lpThreadParameter){
    for (int i = 0; i < 10000000; i++)
    {
        WaitForSingleObject(hEvent, -1);
        g_n++;
        printf("我在线程2：%d\n", g_n);
        Sleep(100);
        SetEvent(hEvent);
    }
    return 0;
}
int _tmain(int argc, _TCHAR* argv[]){

    HANDLE hThread1 = 0, hThread2;
    //创建一个事件对象
    hEvent = CreateEvent(
        NULL,   //安全属性
        FALSE,  //自动重置
        TRUE,   //初始状态为激发态（有信号状态）
        NULL    //事件对象的名字
        );



    hThread1 = CreateThread(NULL, NULL, ThreadPro1, NULL, NULL, NULL);
    hThread2 = CreateThread(NULL, NULL, ThreadPro2, NULL, NULL, NULL);
    WaitForSingleObject(hThread1, -1);
    WaitForSingleObject(hThread2, -1);
    printf("%d", g_n);
    return 0;
}