c - WaitForSingleObject 无限等待线程终止

Question

我有两个功能:

Fl_Thread n_create_thread(Fl_Thread &t, void *(*f) (void *), void *p) 
{
    return t = (Fl_Thread)_beginthread((void(__cdecl *)(void *))f, 0, p);    
}

void n_wait_end_thread(Fl_Thread t) 
{
    WaitForSingleObject((HANDLE)t, INFINITE);    
}

创建线程，给出指向线程函数的指针，但是如果我等待通过WaitForSingleObject终止线程，它会挂起并且无法停止等待。

Answer 1

当您等待时，您的线程句柄可能无效 - 请改用 _beginthreadex - see the MSDN page :

It's safer to use _beginthreadex than _beginthread. If the thread that's generated by _beginthread exits quickly, the handle that's returned to the caller of _beginthread might be invalid or point to another thread. However, the handle that's returned by _beginthreadex has to be closed by the caller of _beginthreadex, so it is guaranteed to be a valid handle if _beginthreadex did not return an error.