EvWatcher::keepalive
EvWatcher::keepalive
(PECL ev >= 0.2.0)
EvWatcher::keepalive — Configures whether to keep the loop from returning
Description
public bool EvWatcher::keepalive ([ bool $value ] )
Configures whether to keep the loop from returning. With keepalive value set to FALSE the watcher won't keep Ev::run() / EvLoop::run() from returning even though the watcher is active.
Watchers have keepalive value TRUE by default.
Clearing keepalive status is useful when returning from Ev::run() / EvLoop::run() just because of the watcher is undesirable. It could be a long running UDP socket watcher or so.
Parameters
value
With keepalive value set to FALSE the watcher won't keep Ev::run() / EvLoop::run() from returning even though the watcher is active.
Return Values
Returns the previous state.
Examples
Example #1 Register an I/O watcher for some UDP socket but do not keep the event loop from running just because of that watcher.
<?php
$udp_socket = ...
$udp_watcher = new EvIo($udp_socket, Ev::READ, function () { /* ... */ }
$udp_watcher->keepalive(FALSE
?>
← EvWatcher::invoke
EvWatcher::setCallback →
© 1997–2017 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
