WaitForMultipleObjects

WaitForMultipleObjects

本文介绍了在WaitForMultipleObjects函数处退出程序?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

大家好,

程序运行到这段代码时出现错误:

I got an error when program ran into this piece of code :

while(!want_shutdown){
        dwWaitResult = WaitForMultipleObjects(NUM_EVENTS,hEvents,-----程序已在此处退出!!!
                             FALSE,INFINITE); ;                                          

        /*了解我们为什么退货*/

       如果(WaitSucceeded(dwWaitResult,NUM_EVENTS)){
            /*
              *返回是由于其中一个事件
              *收到信号
              */
           开关(WaitSucceededIndex(dwWaitResult)){
           案例RELOAD_EVENT:
                want_reload = ISC_TRUE;
               休息;

           案例SHUTDOWN_EVENT:
                want_shutdown = ISC_TRUE;
               休息;
            }
        }
        if(want_reload){
            want_reload = ISC_FALSE;
           返回(ISC_R_RELOAD);
        }

        if(want_shutdown&&被阻止)
            exit(-1);
    }

while (!want_shutdown) {
        dwWaitResult = WaitForMultipleObjects(NUM_EVENTS, hEvents, ----- Program has exited here !!!
                              FALSE, INFINITE);                                     

        /* See why we returned */

        if (WaitSucceeded(dwWaitResult, NUM_EVENTS)) {
            /*
             * The return was due to one of the events
             * being signaled
             */
            switch (WaitSucceededIndex(dwWaitResult)) {
            case RELOAD_EVENT:
                want_reload = ISC_TRUE;
                break;

            case SHUTDOWN_EVENT:
                want_shutdown = ISC_TRUE;
                break;
            }
        }
        if (want_reload) {
            want_reload = ISC_FALSE;
            return (ISC_R_RELOAD);
        }

        if (want_shutdown && blocked)
            exit(-1);
    }

请让我知道我遇到的问题以及解决方案.

Please let me know the problem i got, and solutions for that.

非常感谢

谢谢

Khoa Tran

Khoa Tran

推荐答案

 

确保在调用此函数之前,不要关闭传入WaitForMultipleObjects(在此示例中为hEvent)的句柄.根据MSDN,如果关闭,我们可能会有不确定的行为.  句柄必须具有SYNCHRONIZE访问权限.

Make sure the handle which passed in WaitForMultipleObjects ( hEvents in this example), should not close before this function call. As per MSDN, if it close, we might have undefined behavior.  The handles must have the SYNCHRONIZE access right.

 

 


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10-30 02:45