Fix connection closing

src/Socket/Client.php

@@ -40,10 +40,17 @@ public function __destruct()
         } catch (\Throwable) {
             // Do nothing.
         } finally {
-            ($this->onClose)();
+            isset($this->onClose) and ($this->onClose)();
         }
     }
 
+    public function close(): void
+    {
+        isset($this->onClose) and ($this->onClose)();
+        // Unlink all closures and free resources.
+        unset($this->onClose, $this->onPayload, $this->readBuffer);
+    }
+
     public function disconnect(): void
     {
         $this->toDisconnect = true;
@@ -86,7 +93,7 @@ public function process(): void
                 throw new \RuntimeException('Socket exception.');
             }
 
-            if ($this->toDisconnect && $this->writeQueue !== []) {
+            if ($this->toDisconnect && $this->writeQueue === []) {
                 throw new DisconnectClient();
             }
             Fiber::suspend();

src/Socket/Server.php

@@ -54,7 +54,7 @@ public function __destruct()
             \socket_close($this->socket);
         } finally {
             foreach ($this->clients as $client) {
-                $client->__destruct();
+                $client->close();
             }
             unset($this->socket, $this->clients, $this->fibers);
         }
@@ -76,17 +76,16 @@ public static function init(
 
     public function process(): void
     {
-        $socket = @\socket_accept($this->socket);
-        if ($socket !== false) {
-            $key = (int)\array_key_last($this->clients) + 1;
+        while (false !== ($socket = \socket_accept($this->socket))) {
             $client = null;
             try {
                 $client = Client::init($socket, $this->payloadSize);
+                $key = (int)\array_key_last($this->clients) + 1;
                 $this->clients[$key] = $client;
                 $this->clientInflector !== null and ($this->clientInflector)($client, $key);
                 $this->fibers[$key] = new Fiber($client->process(...));
             } catch (\Throwable) {
-                $client?->__destruct();
+                $client?->close();
                 unset($client, $this->clients[$key], $this->fibers[$key]);
             }
         }
@@ -102,7 +101,7 @@ public function process(): void
                 if ($e instanceof DisconnectClient) {
                     $this->logger->info('Custom disconnect.');
                 }
-                $this->clients[$key]->__destruct();
+                $this->clients[$key]->close();
                 // Logger::exception($e, 'Client fiber.');
                 unset($this->clients[$key], $this->fibers[$key]);
             }

src/Socket/SocketStream.php

@@ -26,7 +26,7 @@ final class SocketStream implements IteratorAggregate, StreamClient
     private readonly DateTimeImmutable $createdAt;
 
     private function __construct(
-        private readonly Client $client,
+        private Client $client,
         public readonly int $clientId,
     ) {
         $this->queue = new \SplQueue();
@@ -41,6 +41,7 @@ public static function create(Client $client, int $id): self
         });
         $client->setOnClose(function () use ($self): void {
             $self->disconnected = true;
+            unset($self->client);
         });
 
         return $self;