protected function connectSocket(Uri $uri) : Awaitable
{
$host = $uri->getHost();
if (Address::isResolved($host)) {
$factory = new SocketFactory(new Address($host) . ':' . $uri->getPort(), 'tcp');
} else {
$factory = new SocketFactory($uri->getHostWithPort(true), 'tcp');
}
$factory->setTcpNoDelay(true);
if ($this->protocols && Socket::isAlpnSupported()) {
$factory->setOption('ssl', 'alpn_protocols', \implode(',', $this->protocols));
}
return $factory->createSocketStream(5, $uri->getScheme() === 'https');
}
public function releaseConnection(Uri $uri, ConnectorContext $context, int $ttl = null, int $remaining = null)
{
$key = \sprintf('%s://%s', $uri->getScheme(), $uri->getHostWithPort(true));
if ($ttl === null) {
$ttl = $this->maxLifetime;
} else {
$ttl = \min($ttl, $this->maxLifetime);
}
if ($remaining === null) {
$remaining = $this->max;
} else {
$remaining = \min($remaining, $this->max);
}
if ($remaining > 0 && $ttl > 0 && $context->socket->isAlive()) {
$context->connected = true;
if (empty($this->conns[$key])) {
$this->conns[$key] = new \SplQueue();
}
if (!empty($this->connecting[$key])) {
$defer = \array_shift($this->connecting[$key]);
return $defer->resolve($context);
}
$context->expires = \time() + $ttl;
$context->remaining = $remaining;
$this->conns[$key]->enqueue($context);
return;
}
$context->socket->close();
$this->connectionDisposed($key);
}
/**
* {@inheritdoc}
*/
public function getConnectorContext(Uri $uri) : Awaitable
{
$key = \sprintf('%s://%s', $uri->getScheme(), $uri->getHostWithPort(true));
if (isset($this->connections[$key])) {
if ($this->connections[$key]->isAlive()) {
$context = new ConnectorContext();
$context->connected = true;
$context->conn = $this->connections[$key];
return new Success($context);
}
unset($this->connections[$key]);
}
if (isset($this->connecting[$key])) {
$defer = new Deferred();
$this->connecting[$key]->enqueue($defer);
return $defer;
}
$this->connecting[$key] = new \SplQueue();
$context = new ConnectorContext(function ($context) use($key) {
if ($this->connecting[$key]->isEmpty()) {
unset($this->connecting[$key]);
} else {
$this->connecting[$key]->dequeue()->resolve($context);
}
});
return new Success($context);
}
