1.2.1495. ext/ev

Extension ev.

ext/ev is a high performance full-featured event loop written in C.

<?php
// Create and start timer firing after 2 seconds
$w1 = new EvTimer(2, 0, function () {
    echo '2 seconds elapsed'.PHP_EOL;
});

// Create and launch timer firing after 2 seconds repeating each second
// until we manually stop it
$w2 = new EvTimer(2, 1, function ($w) {
    echo 'is called every second, is launched after 2 seconds'.PHP_EOL;
    echo 'iteration = ', Ev::iteration(), PHP_EOL;

    // Stop the watcher after 5 iterations
    Ev::iteration() == 5 and $w->stop();
    // Stop the watcher if further calls cause more than 10 iterations
    Ev::iteration() >= 10 and $w->stop();
});

// Create stopped timer. It will be inactive until we start it ourselves
$w_stopped = EvTimer::createStopped(10, 5, function($w) {
    echo 'Callback of a timer created as stopped'.PHP_EOL;

    // Stop the watcher after 2 iterations
    Ev::iteration() >= 2 and $w->stop();
});

// Loop until Ev::stop() is called or all of watchers stop
Ev::run();

// Start and look if it works
$w_stopped->start();
echo 'Run single iteration'.PHP_EOL;
Ev::run(Ev::RUN_ONCE);

echo 'Restart the second watcher and try to handle the same events, but don\'t block'.PHP_EOL;
$w2->again();
Ev::run(Ev::RUN_NOWAIT);

$w = new EvTimer(10, 0, function() {});
echo 'Running a blocking loop'.PHP_EOL;
Ev::run();
echo 'END'.PHP_EOL;
?>

See also Ev and libev.

1.2.1495.1. Specs

Short name	Extensions/Extev
Rulesets	All, Appinfo, CE
Exakat since	0.8.4
PHP Version	All
Severity
Time To Fix
Precision	Very high
Features	event-loop
Available in	Entreprise Edition, Community Edition, Exakat Cloud