public function testWaterfallWithTasks()
{
$loop = new \React\EventLoop\StreamSelectLoop();
$tasks = array(function ($callback, $errback) use($loop) {
$loop->addTimer(0.05, function () use($callback) {
$callback('foo');
});
}, function ($foo, $callback, $errback) use($loop) {
$loop->addTimer(0.05, function () use($callback, $foo) {
$callback($foo . 'bar');
});
}, function ($bar, $callback, $errback) use($loop) {
$loop->addTimer(0.05, function () use($callback, $bar) {
$callback($bar . 'baz');
});
});
$callback = $this->createCallableMock($this->once(), 'foobarbaz');
$errback = $this->createCallableMock($this->never());
Util::waterfall($tasks, $callback, $errback);
$timer = new Timer($this);
$timer->start();
$loop->run();
$timer->stop();
$timer->assertInRange(0.15, 0.3);
}
public function testParallelWithDelayedError()
{
$called = 0;
$loop = new \React\EventLoop\StreamSelectLoop();
$tasks = array(function ($callback, $errback) use(&$called) {
$callback('foo');
$called++;
}, function ($callback, $errback) use($loop) {
$loop->addTimer(0.001, function () use($errback) {
$e = new \RuntimeException('whoops');
$errback($e);
});
}, function ($callback, $errback) use(&$called) {
$callback('bar');
$called++;
});
$callback = $this->createCallableMock($this->never());
$errback = $this->createCallableMock($this->once());
Util::parallel($tasks, $callback, $errback);
$loop->run();
$this->assertSame(2, $called);
}
$t = isset($args['t']) ? $args['t'] : 1;
// passing file descriptors requires mapping paths (https://bugs.php.net/bug.php?id=53465)
$if = str_replace('/dev/fd/', 'php://fd/', $if);
$of = str_replace('/dev/fd/', 'php://fd/', $of);
$loop = new React\EventLoop\StreamSelectLoop();
// setup information stream
$info = new React\Stream\Stream(STDERR, $loop);
$info->pause();
if (extension_loaded('xdebug')) {
$info->write('NOTICE: The "xdebug" extension is loaded, this has a major impact on performance.' . PHP_EOL);
}
$info->write('piping from ' . $if . ' to ' . $of . ' (for max ' . $t . ' second(s)) ...' . PHP_EOL);
// setup input and output streams and pipe inbetween
$in = new React\Stream\Stream(fopen($if, 'r'), $loop);
$out = new React\Stream\Stream(fopen($of, 'w'), $loop);
$out->pause();
$in->pipe($out);
// stop input stream in $t seconds
$start = microtime(true);
$timeout = $loop->addTimer($t, function () use($in, &$bytes) {
$in->close();
});
// print stream position once stream closes
$in->on('close', function () use($in, $start, $timeout, $info) {
$t = microtime(true) - $start;
$timeout->cancel();
$bytes = ftell($in->stream);
$info->write('read ' . $bytes . ' byte(s) in ' . round($t, 3) . ' second(s) => ' . round($bytes / 1024 / 1024 / $t, 1) . ' MiB/s' . PHP_EOL);
$info->write('peak memory usage of ' . round(memory_get_peak_usage(true) / 1024 / 1024, 1) . ' MiB' . PHP_EOL);
});
$loop->run();
