private void CancelOverlapped(SafeFileHandle handle, ManualResetEvent completedEvent)
{
lock (_cancelIOLock)
{
if (!completedEvent.WaitOne(OVERLAPPED_TIMEOUT) && handle != null && !handle.IsClosed && !handle.IsInvalid)
{
InteropKernel32.CancelIo(handle);
}
}
}
public void WriteClear(uint controlCode)
{
// cancel pending operations
lock (_cancelIOLock)
{
InteropKernel32.CancelIo(_readHandle);
InteropKernel32.CancelIo(_writeHandle);
}
WriteControl(controlCode, null);
}