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| 1 | +<?php |
| 2 | + |
| 3 | +// $ php examples/99-benchmark-download.php 8080 |
| 4 | +// $ curl http://localhost:8080/10g.bin > /dev/null |
| 5 | +// $ wget http://localhost:8080/10g.bin -O /dev/null |
| 6 | +// $ ab -n10 -c10 http://localhost:8080/1g.bin |
| 7 | +// $ docker run -it --rm --net=host jordi/ab ab -n10 -c10 http://localhost:8080/1g.bin |
| 8 | + |
| 9 | +use React\EventLoop\Factory; |
| 10 | +use React\Socket\Server; |
| 11 | +use React\Http\Response; |
| 12 | +use Psr\Http\Message\RequestInterface; |
| 13 | +use React\Stream\ReadableStream; |
| 14 | + |
| 15 | +require __DIR__ . '/../vendor/autoload.php'; |
| 16 | + |
| 17 | +$loop = Factory::create(); |
| 18 | +$socket = new Server(isset($argv[1]) ? $argv[1] : '0.0.0.0:0', $loop); |
| 19 | + |
| 20 | +/** A readable stream that can emit a lot of data */ |
| 21 | +class ChunkRepeater extends ReadableStream |
| 22 | +{ |
| 23 | + private $chunk; |
| 24 | + private $count; |
| 25 | + private $position = 0; |
| 26 | + private $paused = true; |
| 27 | + |
| 28 | + public function __construct($chunk, $count) |
| 29 | + { |
| 30 | + $this->chunk = $chunk; |
| 31 | + $this->count = $count; |
| 32 | + } |
| 33 | + |
| 34 | + public function pause() |
| 35 | + { |
| 36 | + $this->paused = true; |
| 37 | + } |
| 38 | + |
| 39 | + public function resume() |
| 40 | + { |
| 41 | + if (!$this->paused) { |
| 42 | + return; |
| 43 | + } |
| 44 | + |
| 45 | + // keep emitting until stream is paused |
| 46 | + $this->paused = false; |
| 47 | + while ($this->position < $this->count && !$this->paused) { |
| 48 | + ++$this->position; |
| 49 | + $this->emit('data', array($this->chunk)); |
| 50 | + } |
| 51 | + |
| 52 | + // end once the last chunk has been written |
| 53 | + if ($this->position >= $this->count) { |
| 54 | + $this->emit('end'); |
| 55 | + $this->close(); |
| 56 | + } |
| 57 | + } |
| 58 | + |
| 59 | + public function getSize() |
| 60 | + { |
| 61 | + return strlen($this->chunk) * $this->count; |
| 62 | + } |
| 63 | +} |
| 64 | + |
| 65 | +$server = new \React\Http\Server($socket, function (RequestInterface $request) use ($loop) { |
| 66 | + switch ($request->getUri()->getPath()) { |
| 67 | + case '/': |
| 68 | + return new Response( |
| 69 | + 200, |
| 70 | + array('Content-Type' => 'text/html'), |
| 71 | + '<html><a href="1g.bin">1g.bin</a><br/><a href="10g.bin">10g.bin</a></html>' |
| 72 | + ); |
| 73 | + case '/1g.bin': |
| 74 | + $stream = new ChunkRepeater(str_repeat('.', 1000000), 1000); |
| 75 | + break; |
| 76 | + case '/10g.bin': |
| 77 | + $stream = new ChunkRepeater(str_repeat('.', 1000000), 10000); |
| 78 | + break; |
| 79 | + default: |
| 80 | + return new Response(404); |
| 81 | + } |
| 82 | + |
| 83 | + $loop->addTimer(0, array($stream, 'resume')); |
| 84 | + |
| 85 | + return new Response( |
| 86 | + 200, |
| 87 | + array('Content-Type' => 'application/octet-data', 'Content-Length' => $stream->getSize()), |
| 88 | + $stream |
| 89 | + ); |
| 90 | +}); |
| 91 | + |
| 92 | +echo 'Listening on http://' . $socket->getAddress() . PHP_EOL; |
| 93 | + |
| 94 | +$loop->run(); |
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