perations integrated with the scheduler.
This class offers support to implement I/O operations that switch execution for other threads until the I/O channel is ready.
This class is useful for implementation of I/O operations integrated with the cooperative scheduling mechanism in order to maximize the processing time.</p>

<p>The instances of this class have two more lists mapping I/O channels (<i>e.g.</i> socket or file) to the suspended threads that should be resumed when the channel becomes ready for rea