Using Critical Section Objects

The following example shows how a thread initializes, enters, and leaves a critical section. As with the mutex example (see Using Mutex Objects), this example uses the try-finally structured exception-handling syntax to ensure that the thread calls the LeaveCriticalSection function to release its ownership of the critical section object.

CRITICAL_SECTION GlobalCriticalSection;

// Initialize the critical section.

InitializeCriticalSection(&GlobalCriticalSection);

// Request ownership of the critical section.

try

{

EnterCriticalSection(&GlobalCriticalSection);

// Access the shared resource.

}

finally

{

// Release ownership of the critical section.

LeaveCriticalSection(&GlobalCriticalSection);

}

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