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Event::signal

(PECL event >= 1.2.6-beta)

Event::signal — Constructs signal event object

說(shuō)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.

參數

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.

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