EventBase::getFeatures
(PECL event >= 1.2.6-beta)
EventBase :: getFeatures - 返回支持的功能的位掩码
描述
public int EventBase::getFeatures ( void )返回支持的功能的位掩码。
参数
该功能没有参数。
返回值
返回表示支持的要素的位掩码的整数。请参阅EventConfig :: FEATURE_ *常量。
例子
示例＃1 EventBase :: getFeatures（）示例
<?php
// Avoiding "select" method
$cfg = new EventConfig();
if ($cfg->avoidMethod("select")) {
echo "`select' method avoided\n";
}
$base = new EventBase($cfg);
echo "Features:\n";
$features = $base->getFeatures();
($features & EventConfig::FEATURE_ET) and print("ET - edge-triggered IO\n");
($features & EventConfig::FEATURE_O1) and print("O1 - O(1) operation for adding/deletting events\n");
($features & EventConfig::FEATURE_FDS) and print("FDS - arbitrary file descriptor types, and not just sockets\n");
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