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<?php |
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namespace Tarantool\Connection; |
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use Tarantool\Exception\ConnectionException; |
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use Tarantool\IProto; |
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use Tarantool\Packer\PackUtils; |
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class SocketConnection implements Connection |
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{ |
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const DEFAULT_HOST = '127.0.0.1'; |
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const DEFAULT_PORT = 3301; |
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private $host; |
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private $port; |
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private $socket; |
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/** |
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* @param string|null $host Default to 'localhost'. |
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* @param int|null $port Default to 3301. |
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*/ |
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public function __construct($host = null, $port = null) |
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{ |
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$this->host = null === $host ? self::DEFAULT_HOST : $host; |
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$this->port = null === $port ? self::DEFAULT_PORT : $port; |
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} |
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public function open() |
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{ |
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$this->close(); |
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if (false === $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) { |
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throw new ConnectionException(sprintf( |
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'Unable to create socket: %s.', socket_strerror(socket_last_error()) |
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)); |
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} |
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if (false === @socket_connect($socket, $this->host, $this->port)) { |
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throw new ConnectionException(sprintf( |
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'Unable to connect: %s.', socket_strerror(socket_last_error($socket)) |
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)); |
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} |
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$this->socket = $socket; |
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$greeting = socket_read($socket, IProto::GREETING_SIZE); |
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return IProto::parseSalt($greeting); |
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} |
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public function close() |
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{ |
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if ($this->socket) { |
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socket_close($this->socket); |
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$this->socket = null; |
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} |
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} |
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public function isClosed() |
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{ |
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return null === $this->socket; |
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} |
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public function send($data) |
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{ |
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if (false === socket_write($this->socket, $data, strlen($data))) { |
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throw $this->createConnectionException(); |
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} |
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$length = null; |
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if (false === socket_recv($this->socket, $length, IProto::LENGTH_SIZE, MSG_WAITALL)) { |
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throw $this->createConnectionException(); |
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} |
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$length = PackUtils::unpackLength($length); |
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$data = null; |
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if (false === socket_recv($this->socket, $data, $length, MSG_WAITALL)) { |
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throw $this->createConnectionException(); |
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} |
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return $data; |
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} |
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private function createConnectionException() |
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{ |
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$errorCode = socket_last_error($this->socket); |
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return new ConnectionException(socket_strerror($errorCode), $errorCode); |
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} |
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} |
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tarantool-php /
client
