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 GroupLicensed under the Creative Commons Attribution License v3.0 or later.
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