EventConfig::requireFeatures

(PECL event >= 1.2.6-beta)

EventConfig::requireFeatures — Enters a required event method feature that the application demands

说明

public EventConfig::requireFeatures ( int $feature ) : bool

Enters a required event method feature that the application demands

参数

feature

Bitmask of required features. See EventConfig::FEATURE_* constants

返回值

范例

Example #1 EventConfig::requireFeatures() example

<?php
$cfg = new EventConfig();

// Create event_base associated with the config
$base = new EventBase($cfg);

// Require FDS feature
if ($cfg->requireFeatures(EventConfig::FEATURE_FDS)) {
    echo "FDS feature is now requried\n";

    $base = new EventBase($cfg);
    ($base->getFeatures() & EventConfig::FEATURE_FDS)
        and print("FDS - arbitrary file descriptor types, and not just sockets\n");
}
?>

以上例程的输出类似于：

FDS feature is now requried
FDS - arbitrary file descriptor types, and not just sockets

参见