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.

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