void Net_Server_Handler::onIdle (
This handler is called whenever the server is idle (has nothing to do), and that for a given number of seconds (timeout). Currently, only the sequential driver supports this handler.
The timeout can be specified by passing the desired number of seconds to
setIdleTimeout(). By default, the timeout is set to
NULL, which means that the handler is deactivated.
This function can not be called statically.