Php/docs/event.signal
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Event::signal
(PECL event >= 1.2.6-beta)
Event::signal — Constructs signal event object
说明
public
static
Event::signal
(
EventBase
$base
,
int
$signum
,
callable
$cb
[,
mixed
$arg
] ) : Event
Constructs signal event object. This is a straightforward method to create a signal event. Note, the generic Event::__construct() method can contruct signal event objects too.
参数
base
- The associated event base object.
signum
- The signal number.
cb
- The signal event callback. See Event callbacks .
arg
- Custom data. If specified, it will be passed to the callback when event triggers.
返回值
Returns Event object on success. Otherwise false
.