remove event_init for old version

helper/event/buffer_looper.php

@@ -38,7 +38,7 @@ class buffer_looper
         $this->mEvTimeouts = [];
 
         $this->mBufferID = 1;
-        event_init();
+//        event_init(); //for libevent C 库 2.16 版本
         $this->mEvBase   = event_base_new();
     }
 

helper/event/event_looper.php

@@ -36,7 +36,7 @@ class event_looper
 
         $this->mEvTimeouts = [];
 
-        event_init();
+//        event_init(); //for libevent C 库 2.16 版本
         $this->mEvBase   = event_base_new();
     }