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diff --git a/libtransport/src/io_modules/loopback/loopback_module.h b/libtransport/src/io_modules/loopback/loopback_module.h
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+/*
+ * Copyright (c) 2017-2020 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <core/local_connector.h>
+#include <hicn/transport/core/io_module.h>
+#include <hicn/transport/core/prefix.h>
+
+#include <atomic>
+
+namespace transport {
+
+namespace core {
+
+class LoopbackModule : public IoModule {
+ static constexpr std::uint16_t interface_mtu = 1500;
+
+ public:
+ LoopbackModule();
+
+ ~LoopbackModule();
+
+ void connect(bool is_consumer) override;
+
+ void send(Packet &packet) override;
+ void send(const uint8_t *packet, std::size_t len) override;
+
+ bool isConnected() override;
+
+ void init(Connector::PacketReceivedCallback &&receive_callback,
+ Connector::OnReconnectCallback &&reconnect_callback,
+ asio::io_service &io_service,
+ const std::string &app_name = "Libtransport") override;
+
+ void registerRoute(const Prefix &prefix) override;
+
+ std::uint32_t getMtu() override;
+
+ bool isControlMessage(const uint8_t *message) override;
+
+ void processControlMessageReply(utils::MemBuf &packet_buffer) override;
+
+ void closeConnection() override;
+
+ private:
+ static std::vector<std::unique_ptr<LocalConnector>> local_faces_;
+ static std::atomic<uint32_t> global_counter_;
+
+ private:
+ uint32_t local_id_;
+};
+
+extern "C" IoModule *create_module(void);
+
+} // namespace core
+
+} // namespace transport