CreateEvent 自动/手动重置的测试

{
HANDLE hEvent = CreateEvent(NULL,
FALSE, //automatically resets
TRUE, //flag for initial state
NULL);

WaitForSingleObject(hEvent, -1); //此处正常退出，因为前面的初始值是TRUE
SetEvent(hEvent); //设置事件
WaitForSingleObject(hEvent, -1); //此处正常退出，因为前面的SetEvent
WaitForSingleObject(hEvent, 2000); //此处会超时退出

CloseHandle(hEvent);
}

{
HANDLE hEvent = CreateEvent(NULL,
TRUE, //manual-reset
TRUE, //flag for initial state
NULL);

WaitForSingleObject(hEvent, -1); //此处正常退出，因为前面的初始值是TRUE
WaitForSingleObject(hEvent, -1); //此处正常退出，因为需要手动复位
ResetEvent(hEvent); //重置事件
WaitForSingleObject(hEvent, 2000); //此处会超时退出
SetEvent(hEvent);
WaitForSingleObject(hEvent, -1); //此处正常退出，因为前面的SetEvent

CloseHandle(hEvent);
}