46 lines
1.2 KiB
PHP
46 lines
1.2 KiB
PHP
<?php
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namespace React\Stream;
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// TODO: move to a trait
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class Util
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{
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public static function pipe(ReadableStreamInterface $source, WritableStreamInterface $dest, array $options = array())
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{
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// TODO: use stream_copy_to_stream
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// it is 4x faster than this
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// but can lose data under load with no way to recover it
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$dest->emit('pipe', array($source));
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$source->on('data', function ($data) use ($source, $dest) {
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$feedMore = $dest->write($data);
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if (false === $feedMore) {
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$source->pause();
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}
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});
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$dest->on('drain', function () use ($source) {
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$source->resume();
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});
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$end = isset($options['end']) ? $options['end'] : true;
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if ($end && $source !== $dest) {
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$source->on('end', function () use ($dest) {
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$dest->end();
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});
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}
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}
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public static function forwardEvents($source, $target, array $events)
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{
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foreach ($events as $event) {
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$source->on($event, function () use ($event, $target) {
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$target->emit($event, func_get_args());
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});
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}
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}
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}
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