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Mini Shell
Mini Shell
<?php
namespace Pheanstalk\Socket;
use Pheanstalk\Contract\SocketInterface;
use Pheanstalk\Exception\SocketException;
/**
* A Socket implementation using the standard file functions.
*/
abstract class FileSocket implements SocketInterface
{
/** @var ?resource */
protected $socket;
/**
* Writes data to the socket.
*
* @param string $data
*
* @return void
*/
public function write(string $data): void
{
$this->checkClosed();
$retries = 0;
error_clear_last();
while (!empty($data) && $retries < 10) {
$written = fwrite($this->socket, $data);
if ($written === false) {
$this->throwException();
} elseif ($written === 0) {
$retries++;
continue;
}
$data = substr($data, $written);
}
if (!empty($data)) {
throw new SocketException('Write failed');
}
}
private function throwException()
{
if (null === $error = error_get_last()) {
throw new SocketException('Unknown error');
}
throw new SocketException($error['message'], $error['type']);
}
private function checkClosed()
{
if (!isset($this->socket)) {
throw new SocketException('The connection was closed');
}
}
/**
* Reads up to $length bytes from the socket.
*
* @return string
*/
public function read(int $length): string
{
$this->checkClosed();
$buffer = '';
while (mb_strlen($buffer, '8bit') < $length) {
$result = fread($this->socket, $length - mb_strlen($buffer, '8bit'));
if ($result === false) {
$this->throwException();
}
$buffer .= $result;
}
return $buffer;
}
/**
* Reads up to the next new-line.
* Trailing whitespace is trimmed.
*
* @param int
*/
public function getLine(): string
{
$this->checkClosed();
$result = fgets($this->socket, 8192);
if ($result === false) {
$this->throwException();
}
return rtrim($result);
}
/**
* Disconnect the socket; subsequent usage of the socket will fail.
*/
public function disconnect(): void
{
$this->checkClosed();
fclose($this->socket);
$this->socket = null;
}
}
Zerion Mini Shell 1.0