EvEmbed::__construct

    (PECL ev >= 0.2.0)

    EvEmbed::__construct — Constructs the EvEmbed object

    Description

    publicEvEmbed::__construct(
        object$other,
        callable$callback = ?,
        mixed$data = ?,
        int$priority = ?
    )

    This is a rather advanced watcher type that lets to embed one event loop into another(currently only IO events are supported in the embedded loop, other types of watchers might be handled in a delayed or incorrect fashion and must not be used).

    See » the libev documentation for details.

    This watcher is most useful on BSD systems without working kqueue to still be able to handle a large number of sockets. See example below.

    Parameters

    other

    Instance of EvLoop . The loop to embed, this loop must be embeddable(see Ev::embeddableBackends() ).

    callback

    See Watcher callbacks .

    data

    Custom data associated with the watcher.

    priority

    Watcher priority

    Examples

    Example #1 Embedding loop created with kqueue backend into the default loop

    <?php

    $loop = EvLoop::defaultLoop();
    $socket_loop = NULL;
    $embed = NULL;

    if (    Ev::supportedBackends() & ~Ev::recommendedBackends() & Ev::BACKEND_KQUEUE) {
    if ((    $socket_loop = new EvLoop(Ev::BACKEND_KQUEUE))) {
    $embed = new EvEmbed($loop);
    }
    }

    if (!    $socket_loop) {
    $socket_loop = $loop;
    }

    // Now use $socket_loop for all sockets, and $loop for anything else
    ?>

    See Also

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