Add ability to change the socket id if it's not managed by object_pool nor single_socket_service.

include/ascs/socket.h

@@ -126,6 +126,10 @@ public:
 
 	uint_fast64_t id() const {return _id;}
 	bool is_equal_to(uint_fast64_t id) const {return _id == id;}
+	//the id can not be changed except this socket is not managed by object_pool,
+	//if this socket is managed by single_socket_service, you can change it freely via function void id(uint_fast64_t),
+	//otherwise, we have only one chance to change it via this function.
+	bool try_change_id(uint_fast64_t id) {if ((uint_fast64_t) -1 != _id) return false; _id = id; return true;}
 
 	Socket& next_layer() {return next_layer_;}
 	const Socket& next_layer() const {return next_layer_;}

include/ascs/tcp/ssl/ssl.h

@@ -109,9 +109,7 @@ protected:
 	virtual void on_unpack_error() {unified_out::info_out(ASCS_LLF " can not unpack msg.", this->id()); this->unpacker()->dump_left_data(); force_shutdown(this->is_reconnect());}
 	virtual void after_close()
 	{
-		if (this->is_reconnect())
-			this->reset_next_layer(this->get_context());
-
+		this->reset_next_layer(this->get_context());
 		super::after_close();
 	}