Event::signal

Constructs signal event object

説明

public static Event Event::signal(
     EventBase $base ,
     int $signum ,
     callable $cb ,
     mixed $arg = ?
)

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.

パラメータ

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.

戻り値

Returns Event object on success. Otherwise false.