互拆机制

 // Global variable
CRITICAL_SECTION CriticalSection;

void main()
{
    ...

    // Initialize the critical section one time only.
    if (!InitializeCriticalSectionAndSpinCount(&CriticalSection,
        0x80000400) )
        return;
    ...

    // Release resources used by the critical section object.
    DeleteCriticalSection(&CriticalSection)
}

DWORD WINAPI ThreadProc( LPVOID lpParameter )
{
    ...

    // Request ownership of the critical section.
    EnterCriticalSection(&CriticalSection);

    // Access the shared resource.

    // Release ownership of the critical section.
    LeaveCriticalSection(&CriticalSection);

    ...
}