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<?php |
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/* |
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* This file is part of JSON RPC Client. |
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* |
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* (c) Igor Lazarev <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Strider2038\JsonRpcClient\Transport\Socket; |
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use Strider2038\JsonRpcClient\Exception\ConnectionLostException; |
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use Strider2038\JsonRpcClient\Exception\RemoteProcedureCallFailedException; |
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/** |
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* @internal |
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* |
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* @author Igor Lazarev <[email protected]> |
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*/ |
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class SocketConnection |
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{ |
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/** @var resource */ |
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private $stream; |
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private string $url; |
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private int $requestTimeoutUs; |
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public function __construct($stream, string $url, int $requestTimeoutUs) |
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{ |
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$this->stream = $stream; |
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$this->url = $url; |
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$this->requestTimeoutUs = $requestTimeoutUs; |
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} |
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public function __destruct() |
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{ |
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if (is_resource($this->stream)) { |
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fclose($this->stream); |
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} |
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} |
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/** |
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* @throws ConnectionLostException |
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*/ |
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public function sendRequest(string $request): void |
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{ |
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if (false === fwrite($this->stream, $request."\n")) { |
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throw new ConnectionLostException($this->url, 'failed to write data into stream'); |
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} |
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fflush($this->stream); |
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} |
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/** |
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* @throws RemoteProcedureCallFailedException |
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*/ |
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public function receiveResponse(): string |
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{ |
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$response = fgets($this->stream); |
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if (false === $response) { |
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$this->checkForTimeout($this->stream); |
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throw new RemoteProcedureCallFailedException(sprintf('Failed to get response from %s.', $this->url)); |
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} |
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return $response; |
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} |
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public function isClosed(): bool |
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{ |
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return feof($this->stream); |
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} |
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/** |
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* @param resource $stream |
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* |
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* @throws RemoteProcedureCallFailedException |
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*/ |
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private function checkForTimeout($stream): void |
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{ |
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$info = stream_get_meta_data($stream); |
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if ($info['timed_out']) { |
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$error = sprintf('Request to %s failed by timeout %d us.', $this->url, $this->requestTimeoutUs); |
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throw new RemoteProcedureCallFailedException($error); |
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} |
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} |
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} |
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strider2038 /
json-rpc-client
