86 lines
1.7 KiB
PHP
86 lines
1.7 KiB
PHP
<?php
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namespace NoccyLabs\Ipc\Interop\Channel;
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/**
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* Channel based on streams
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*
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*/
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class StreamChannel implements ChannelInterface
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{
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protected $stream;
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/**
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* Constructor
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*
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* @param resource|string $stream
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*/
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public function __construct($stream)
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{
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if (!is_resource($stream)) {
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if (!is_string($stream)) {
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throw new \LogicException("Invalid stream");
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}
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$stream = stream_socket_client($stream, $errno, $errstr);
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if (!$stream) {
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throw new \RuntimeException(sprintf("%d %s", $errno, $errstr));
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}
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}
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$this->stream = $stream;
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stream_set_blocking($stream, false);
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}
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/**
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* {@inheritDoc}
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*
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* @param mixed $data
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* @return void
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*/
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public function send($data)
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{
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fwrite($this->stream, json_encode($data)."\0");
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}
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/**
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* {@inheritDoc}
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*
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* @return mixed
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*/
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public function receive()
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{
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$buf = fread($this->stream, 8192);
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if (!$buf) {
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return false;
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}
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return json_decode(rtrim($buf, "\0"), true);
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}
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/**
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* {@inheritDoc}
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*
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* @return boolean
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*/
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public function isOpen(): bool
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{
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return is_resource($this->stream);
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}
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/**
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* Create a pair of connected StreamChannel instances
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*
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* @return StreamChannel[]
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*/
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public static function createPair()
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{
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$fd = stream_socket_pair(STREAM_PF_UNIX, STREAM_SOCK_STREAM, STREAM_IPPROTO_IP);
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return [
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new StreamChannel($fd[0]),
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new StreamChannel($fd[1])
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];
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}
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} |