diff --git a/src/Transporter/GuzzleHttpTransporter.php b/src/Transporter/GuzzleHttpTransporter.php
index 509f541..57af769 100644
--- a/src/Transporter/GuzzleHttpTransporter.php
+++ b/src/Transporter/GuzzleHttpTransporter.php
@@ -35,8 +35,8 @@ class GuzzleHttpTransporter extends AbstractTransporter
 
     public function __construct(string $host = '', int $port = 9501, array $config = [])
     {
-        $this->host = $host;
-        $this->port = $port;
+        parent::__construct($host, $port);
+
         $this->config = array_merge_recursive($config, [
             'headers' => [
                 'Content-Type' => 'application/json',
diff --git a/src/Transporter/StreamSocketTransporter.php b/src/Transporter/StreamSocketTransporter.php
index 396962f..b9a0f51 100644
--- a/src/Transporter/StreamSocketTransporter.php
+++ b/src/Transporter/StreamSocketTransporter.php
@@ -24,11 +24,6 @@ class StreamSocketTransporter extends AbstractTransporter
      */
     protected $client;
 
-    /**
-     * @var int
-     */
-    protected $timeout;
-
     /**
      * @var bool
      */
@@ -69,19 +64,19 @@ public function recv()
     public function receive()
     {
         $buf = '';
-        $timeout = 1000;
+        $timeoutMs = $this->timeout > 0 ? $this->timeout * 1000 : 1000;
 
         stream_set_blocking($this->client, false);
 
         // The maximum number of retries is 12, and 1000 microseconds is the minimum waiting time.
         // The waiting time is doubled each time until the server writes data to the buffer.
         // Usually, the data can be obtained within 1 microsecond.
-        $result = retry(12, function () use (&$buf, &$timeout) {
+        $result = retry(12, function () use (&$buf, &$timeoutMs) {
             $read = [$this->client];
             $write = null;
             $except = null;
 
-            while (stream_select($read, $write, $except, 0, $timeout)) {
+            while (stream_select($read, $write, $except, 0, $timeoutMs)) {
                 foreach ($read as $r) {
                     $res = fread($r, 8192);
                     if (feof($r)) {
@@ -92,7 +87,7 @@ public function receive()
             }
 
             if (! $buf) {
-                $timeout *= 2;
+                $timeoutMs *= 2;
 
                 throw new RecvFailedException('No data was received');
             }