请教WaitForSingleObject（）函数的用法！

[zshuc]

WaitForSingleObject（）究竟等待的是什么信号，这个确认的信号态我可不可以不用windows自带的函数而自己写函数来实现呢？
谢谢!
自己实现该怎么实现？

[zshuc]

对了，创建一个事件由CreatEvent()函数实现，剩下的触发事件信号由我自己来完成，而不用windows的函数。。。。

[用户 昵称]

HANDLE hMutex;

// Create a mutex with no initial owner.

hMutex = CreateMutex(
NULL, // no security attributes
FALSE, // initially not owned
"MutexToProtectDatabase"); // name of mutex

if (hMutex == NULL)
{
// Check for error.
}
When a thread of this process writes to the database, as in the next example, it first requests ownership of the mutex. If it gets ownership, the thread writes to the database and then releases its ownership.

The example uses structured exception-handling syntax to ensure that the thread properly releases the mutex object. The __finally block of code is executed no matter how the __try block terminates (unless the __try block includes a call to the TerminateThread function). This prevents the mutex object from being abandoned inadvertently.

BOOL FunctionToWriteToDatabase(HANDLE hMutex)
{
DWORD dwWaitResult;

// Request ownership of mutex.

dwWaitResult = WaitForSingleObject(
hMutex, // handle to mutex
5000L); // five-second time-out interval

switch (dwWaitResult)
{
// The thread got mutex ownership.
case WAIT_OBJECT_0:
__try {
// Write to the database.
}

__finally {
// Release ownership of the mutex object.
if (! ReleaseMutex(hMutex)) {
// Deal with error.
}

break;
}

// Cannot get mutex ownership due to time-out.
case WAIT_TIMEOUT:
return FALSE;

// Got ownership of the abandoned mutex object.
case WAIT_ABANDONED:
return FALSE;
}

return TRUE;
}
----------------------------
我想应该可以，关键是如何修改那个event/mutex...还有如何通知别的对象。

[fangcheng]

WaitForSingleObject 设置成手动恢复信号，触发不就是由你做吗？