45 lines
1.1 KiB
PHP
45 lines
1.1 KiB
PHP
<?php
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use React\EventLoop\Factory;
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use React\ChildProcess\Process;
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use React\Stream\Stream;
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require __DIR__ . '/../vendor/autoload.php';
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$loop = Factory::create();
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$info = new React\Stream\WritableResourceStream(STDERR, $loop);
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$info->write('Pipes data to process STDIN' . PHP_EOL);
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if (extension_loaded('xdebug')) {
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$info->write('NOTICE: The "xdebug" extension is loaded, this has a major impact on performance.' . PHP_EOL);
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}
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$process = new Process('dd of=/dev/zero');
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$process->start($loop);
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// 10000 * 100 KB => 1 GB
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$i = 10000;
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$chunk = str_repeat("\0", 100 * 1000);
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$write = function () use ($chunk, $process, &$i, &$write) {
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do {
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--$i;
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$continue = $process->stdin->write($chunk);
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} while ($i && $continue);
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if ($i > 0) {
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// buffer full => wait for drain to continue
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$process->stdin->once('drain', $write);
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} else {
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$process->stdin->end();
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}
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};
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$write();
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// report any other output/errors
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$process->stdout->on('data', 'printf');
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$process->stdout->on('error', 'printf');
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$process->stderr->on('data', 'printf');
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$process->stdout->on('error', 'printf');
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$loop->run();
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