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216 lines (177 loc) · 5.17 KB
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<?php
declare(strict_types=1);
/**
* This file is part of Hyperf.
*
* @link https://www.hyperf.io
* @document https://hyperf.wiki
* @contact [email protected]
* @license https://github.com/hyperf/hyperf/blob/master/LICENSE
*/
namespace Hyperf\Pool;
use Closure;
use Hyperf\Contract\ConnectionInterface;
use Hyperf\Contract\StdoutLoggerInterface;
use Hyperf\Coordinator\Timer;
use Hyperf\Engine\Channel;
use Hyperf\Pool\Exception\InvalidArgumentException;
use Hyperf\Pool\Exception\SocketPopException;
use Psr\Container\ContainerInterface;
use Psr\Log\LoggerInterface;
use Throwable;
abstract class KeepaliveConnection implements ConnectionInterface
{
protected Timer $timer;
protected Channel $channel;
protected float $lastUseTime = 0.0;
protected ?int $timerId = null;
protected bool $connected = false;
protected string $name = 'keepalive.connection';
public function __construct(protected ContainerInterface $container, protected Pool $pool)
{
$this->timer = new Timer();
}
public function __destruct()
{
$this->clear();
}
public function release(): void
{
$this->pool->release($this);
}
public function getConnection()
{
throw new InvalidArgumentException('Please use call instead of getConnection.');
}
public function check(): bool
{
return $this->isConnected();
}
public function reconnect(): bool
{
$this->close();
$connection = $this->getActiveConnection();
$channel = new Channel(1);
$channel->push($connection);
$this->channel = $channel;
$this->lastUseTime = microtime(true);
$this->addHeartbeat();
return true;
}
/**
* @param bool $refresh refresh last use time or not
* @return mixed
*/
public function call(Closure $closure, bool $refresh = true)
{
if (! $this->isConnected()) {
$this->reconnect();
}
$connection = $this->channel->pop($this->pool->getOption()->getWaitTimeout());
if ($connection === false) {
throw new SocketPopException(sprintf('Socket of %s is exhausted. Cannot establish socket before timeout.', $this->name));
}
try {
$result = $closure($connection);
if ($refresh) {
$this->lastUseTime = microtime(true);
}
} finally {
if ($this->isConnected()) {
$this->channel->push($connection, 0.001);
} else {
// Unset and drop the connection.
unset($connection);
}
}
return $result;
}
public function isConnected(): bool
{
return $this->connected;
}
public function close(): bool
{
if ($this->isConnected()) {
$this->call(function ($connection) {
try {
if ($this->isConnected()) {
$this->sendClose($connection);
}
} finally {
$this->clear();
}
}, false);
}
return true;
}
public function isTimeout(): bool
{
return $this->lastUseTime < microtime(true) - $this->pool->getOption()->getMaxIdleTime()
&& $this->channel->getLength() > 0;
}
protected function addHeartbeat()
{
$this->connected = true;
$this->timerId = $this->timer->tick($this->getHeartbeatSeconds(), function () {
try {
if (! $this->isConnected()) {
return;
}
if ($this->isTimeout()) {
// The socket does not use in double of heartbeat.
$this->close();
return;
}
$this->heartbeat();
} catch (Throwable $throwable) {
$this->clear();
if ($logger = $this->getLogger()) {
$message = sprintf('Socket of %s heartbeat failed, %s', $this->name, $throwable);
$logger->error($message);
}
}
});
}
/**
* @return int seconds
*/
protected function getHeartbeatSeconds(): int
{
$heartbeat = $this->pool->getOption()->getHeartbeat();
if ($heartbeat > 0) {
return intval($heartbeat);
}
return 10;
}
protected function clear()
{
$this->connected = false;
if ($this->timerId) {
$this->timer->clear($this->timerId);
$this->timerId = null;
}
}
protected function getLogger(): ?LoggerInterface
{
if ($this->container->has(StdoutLoggerInterface::class)) {
return $this->container->get(StdoutLoggerInterface::class);
}
return null;
}
protected function heartbeat(): void
{
}
/**
* Send close protocol.
* @param mixed $connection
*/
protected function sendClose($connection): void
{
}
/**
* Connect and return the active connection.
* @return mixed
*/
abstract protected function getActiveConnection();
}