Ev::supportedBackends

    (PECL ev >= 0.2.0)

    Ev::supportedBackends — Returns the set of backends supported by current libev configuration

    Description

    finalpublicstaticEv::supportedBackends(): int

    Returns the set of backends supported by current libev configuration.

    Parameters

    This function has no parameters.

    Return Values

    Returns a bit mask which can containing backend flags combined using bitwise OR operator.

    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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