TrackManiaControl/libs/React/Stream/Buffer.php

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<?php
namespace React\Stream;
use Evenement\EventEmitter;
use React\EventLoop\LoopInterface;
/** @event full-drain */
class Buffer extends EventEmitter implements WritableStreamInterface
{
public $stream;
public $listening = false;
public $softLimit = 2048;
private $writable = true;
private $loop;
private $data = '';
private $lastError = array(
'number' => 0,
'message' => '',
'file' => '',
'line' => 0,
);
public function __construct($stream, LoopInterface $loop)
{
$this->stream = $stream;
$this->loop = $loop;
}
public function isWritable()
{
return $this->writable;
}
public function write($data)
{
if (!$this->writable) {
return;
}
$this->data .= $data;
if (!$this->listening) {
$this->listening = true;
$this->loop->addWriteStream($this->stream, array($this, 'handleWrite'));
}
$belowSoftLimit = strlen($this->data) < $this->softLimit;
return $belowSoftLimit;
}
public function end($data = null)
{
if (null !== $data) {
$this->write($data);
}
$this->writable = false;
if ($this->listening) {
$this->on('full-drain', array($this, 'close'));
} else {
$this->close();
}
}
public function close()
{
$this->writable = false;
$this->listening = false;
$this->data = '';
$this->emit('close', [$this]);
}
public function handleWrite()
{
if (!is_resource($this->stream)) {
$this->emit('error', array(new \RuntimeException('Tried to write to invalid stream.'), $this));
return;
}
set_error_handler(array($this, 'errorHandler'));
$sent = fwrite($this->stream, $this->data);
restore_error_handler();
if (false === $sent) {
$this->emit('error', array(
new \ErrorException(
$this->lastError['message'],
0,
$this->lastError['number'],
$this->lastError['file'],
$this->lastError['line']
),
$this
));
return;
}
if (0 === $sent && feof($this->stream)) {
$this->emit('error', array(new \RuntimeException('Tried to write to closed stream.'), $this));
return;
}
$len = strlen($this->data);
if ($len >= $this->softLimit && $len - $sent < $this->softLimit) {
$this->emit('drain', [$this]);
}
$this->data = (string) substr($this->data, $sent);
if (0 === strlen($this->data)) {
$this->loop->removeWriteStream($this->stream);
$this->listening = false;
$this->emit('full-drain', [$this]);
}
}
private function errorHandler($errno, $errstr, $errfile, $errline)
{
$this->lastError['number'] = $errno;
$this->lastError['message'] = $errstr;
$this->lastError['file'] = $errfile;
$this->lastError['line'] = $errline;
}
}