abstract_tcp_server2: restart async accept on error

contrib/epee/include/net/abstract_tcp_server2.inl

@@ -1029,7 +1029,8 @@ POP_WARNINGS
   void boosted_tcp_server<t_protocol_handler>::handle_accept(const boost::system::error_code& e)
   {
     MDEBUG("handle_accept");
-    TRY_ENTRY();
+    try
+    {
     if (!e)
     {
 		if (m_connection_type == e_connection_type_RPC) {
@@ -1047,11 +1048,25 @@ POP_WARNINGS
 
       conn->start(true, 1 < m_threads_count);
       conn->save_dbg_log();
-    }else
+      return;
+    }
+    else
+    {
+      MERROR("Error in boosted_tcp_server<t_protocol_handler>::handle_accept: " << e);
+    }
+    }
+    catch (const std::exception &e)
     {
-      _erro("Some problems at accept: " << e.message() << ", connections_count = " << m_sock_count);
+      MERROR("Exception in boosted_tcp_server<t_protocol_handler>::handle_accept: " << e.what());
     }
-    CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::handle_accept", void());
+
+    // error path, if e or exception
+    _erro("Some problems at accept: " << e.message() << ", connections_count = " << m_sock_count);
+    misc_utils::sleep_no_w(100);
+    new_connection_.reset(new connection<t_protocol_handler>(io_service_, m_config, m_sock_count, m_sock_number, m_pfilter, m_connection_type));
+    acceptor_.async_accept(new_connection_->socket(),
+      boost::bind(&boosted_tcp_server<t_protocol_handler>::handle_accept, this,
+      boost::asio::placeholders::error));
   }
   //---------------------------------------------------------------------------------
   template<class t_protocol_handler>