GoLang event_set

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PHP event_set

PHP original manual for event_set [ show | php.net ]

event_set

(PECL libevent >= 0.0.1)

event_set — Prepare an event

Description

bool event_set ( resource $event , mixed $fd , int $events , mixed $callback [, mixed $arg ] )

Prepares the event to be used in event_add(). The event is prepared to call the function specified by the callback on the events specified in parameter events, which is a set of the following flags: EV_TIMEOUT, EV_SIGNAL, EV_READ, EV_WRITE and EV_PERSIST.

If EV_SIGNAL bit is set in parameter events, the fd is interpreted as signal number.

After initializing the event, use event_base_set() to associate the event with its event base.

In case of matching event, these three arguments are passed to the callback function:

fd

Signal number or resource indicating the stream.

events

A flag indicating the event. Consists of the following flags: EV_TIMEOUT, EV_SIGNAL, EV_READ, EV_WRITE and EV_PERSIST.

arg

Optional parameter, previously passed to event_set() as arg.

Parameters

event

Valid event resource.

fd

Valid PHP stream resource. The stream must be castable to file descriptor, so you most likely won't be able to use any of filtered streams.

events

A set of flags indicating the desired event, can be EV_READ and/or EV_WRITE. The additional flag EV_PERSIST makes the event to persist until event_del() is called, otherwise the callback is invoked only once.

callback

Callback function to be called when the matching event occurs.

arg

Optional callback parameter.

Return Values

event_set() returns TRUE on success or FALSE on error.

Changelog

Version Description
0.0.4 EV_SIGNAL support was added.