#include "stdafx.h"
#include <windows.h>
HANDLE g_hEventA = nullptr;
HANDLE g_hEventB = nullptr;
DWORD WINAPI ThreadProcA(LPVOID lpParam)
{
   /*
    * 如果是自動狀態
    * WaitForSingleObject成功後會把等待物件變為無訊號狀態
    * 如果是手動
    * WaitForSingleObject返回，什麼都不幹，需要手動ResetEvent
    **/
    for (int i = 0; i < 10
 
;i+=2)
    {
        WaitForSingleObject(g_hEventA, INFINITE);
        printf("A === %d \n", i);
        SetEvent(g_hEventB);
    }
    return 0;
}
DWORD WINAPI ThreadProcB(LPVOID lpParam)
{
    for (int i = 1; i < 10; i += 2)
    {
        WaitForSingleObject(g_hEventB, INFINITE);
        printf("B ===  %d \n"
 
, i);
        SetEvent(g_hEventA);
    }
    return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
    /*
     * 建立事件物件
     * 引數1：安全屬性，預設
     * 引數2：TRUE手動,FALSE自動
     * 引數3：初始狀態，TRUE有訊號，FALSE無訊號
     * 引數4：事件物件有無名字
     **/
    if (!(g_hEventA = CreateEvent(NULL, FALSE, TRUE, NULL)))return 0;
    if (!(g_hEventB = CreateEvent(NULL
 
, FALSE, TRUE, NULL)))return 0;

    HANDLE hHandle[2] = {};
    hHandle[0] = CreateThread(NULL, 0, ThreadProcA, NULL, 0, NULL);
    hHandle[1] = CreateThread(NULL, 0, ThreadProcB, NULL, 0, NULL);
    // 等待所有執行緒全部返回
    WaitForMultipleObjects(2, hHandle, TRUE, INFINITE);
    system("pause");
    return 0;
}