diff --git a/a8/tcpsession.cc b/a8/tcpsession.cc
index 210a07f..24fb1fb 100644
--- a/a8/tcpsession.cc
+++ b/a8/tcpsession.cc
@@ -74,7 +74,6 @@ namespace a8
             memmove(p->buff, buff, bufflen);
             p->bufflen = bufflen;
             send_buffer_mutex_.lock();
-#if 1
             if (bot_node_) {
                 bot_node_->next = p;
                 bot_node_ = p;
@@ -85,50 +84,6 @@ namespace a8
             if (!sending_) {
                 NotifyEpollSend();
             }
-#else
-            if (sending_) {
-                if (bot_node_) {
-                    bot_node_->next = p;
-                    bot_node_ = p;
-                } else {
-                    top_node_ = p;
-                    bot_node_ = p;
-                }
-                NotifyEpollSend();
-            } else {
-                if (work_node_) {
-                    abort();
-                }
-                if (top_node_ || bot_node_) {
-                    abort();
-                }
-                int ret = DirectSend(p);
-                switch (ret) {
-                case 0:
-                case -2:
-                    {
-                        assert(ret == 0);
-                        if (p->buff) {
-                            free(p->buff);
-                        }
-                        free(p);
-                    }
-                    break;
-                case -1:
-                    {
-                        if (top_node_ || bot_node_) {
-                            abort();
-                        }
-                        top_node_ = p;
-                        bot_node_ = p;
-                        NotifyEpollSend();
-                    }
-                    break;
-                default:
-                    abort();
-                }
-            }
-#endif
             send_buffer_mutex_.unlock();
             ++master->send_node_num;
         }
@@ -410,4 +365,3 @@ namespace a8
     }
 
 }
-