(PECL ev >= 0.2.0)
Ev::nowUpdate — Establishes the current time by querying the kernel, updating the time returned by Ev::now in the progress.
This method is rarely useful, but when some event callback runs for a very long time without entering the event loop, updating libev 's consideration of the current time is a good idea.
Esta função não possui parâmetros.
Não há valor retornado.