diff --git a/src/HttpClient.php b/src/HttpClient.php
index aefc877..5cf1d58 100644
--- a/src/HttpClient.php
+++ b/src/HttpClient.php
@@ -202,6 +202,9 @@ private function createClient():Client
 
     private function getUri(?string $path, ?string $query): string
     {
+        if($path == null){
+            $path = '/';
+        }
         return !empty($query) ? $path . '?' . $query : $path;
     }
 }
\ No newline at end of file
diff --git a/src/Multi.php b/src/Multi.php
index fac929d..3418585 100644
--- a/src/Multi.php
+++ b/src/Multi.php
@@ -33,11 +33,15 @@ function exec(float $timeout = 1.0):array
             });
         }
         $ret = [];
+        $all = count($this->list);
         $start = microtime(true);
         while (1){
             if(round(microtime(true) - $start,3) > $timeout ){
                 break;
             }
+            if(count($ret) == $all){
+                break;
+            }
             $temp = $channel->pop(0.01);
             if(is_array($temp)){
                 $ret = $ret+$temp;