1 files changed, 113 insertions, 0 deletions
diff --git a/libtransport/src/protocols/rtc/rtc.h b/libtransport/src/protocols/rtc/rtc.h
new file mode 100644
index 000000000..596887067
--- /dev/null
+++ b/libtransport/src/protocols/rtc/rtc.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2017-2021 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 <protocols/datagram_reassembly.h>
+#include <protocols/rtc/rtc_ldr.h>
+#include <protocols/rtc/rtc_rc.h>
+#include <protocols/rtc/rtc_state.h>
+#include <protocols/transport_protocol.h>
+
+#include <unordered_set>
+#include <vector>
+
+namespace transport {
+
+namespace protocol {
+
+namespace rtc {
+
+class RTCTransportProtocol : public TransportProtocol,
+                             public DatagramReassembly {
+ public:
+  RTCTransportProtocol(implementation::ConsumerSocket *icnet_socket);
+
+  ~RTCTransportProtocol();
+
+  using TransportProtocol::start;
+
+  using TransportProtocol::stop;
+
+  void resume() override;
+
+ private:
+  enum class SyncState { catch_up = 0, in_sync = 1, last };
+
+ private:
+  // setup functions
+  void initParams();
+  void reset() override;
+
+  void inactiveProducer();
+
+  // protocol functions
+  void discoveredRtt();
+  void newRound();
+
+  // window functions
+  void computeMaxSyncWindow();
+  void updateSyncWindow();
+  void decreaseSyncWindow();
+
+  // packet functions
+  void sendInterest(Name *interest_name);
+  void sendRtxInterest(uint32_t seq);
+  void sendProbeInterest(uint32_t seq);
+  void scheduleNextInterests() override;
+  void onTimeout(Interest::Ptr &&interest) override;
+  void onNack(const ContentObject &content_object);
+  void onProbe(const ContentObject &content_object);
+  void reassemble(ContentObject &content_object) override;
+  void onContentObject(Interest &interest,
+                       ContentObject &content_object) override;
+  void onPacketDropped(Interest &interest,
+                       ContentObject &content_object) override {}
+  void onReassemblyFailed(std::uint32_t missing_segment) override {}
+
+  // interaction with app functions
+  void sendStatsToApp(uint32_t retx_count, uint32_t received_bytes,
+                      uint32_t sent_interests, uint32_t lost_data,
+                      uint32_t recovered_losses, uint32_t received_nacks);
+  // protocol state
+  bool start_send_interest_;
+  SyncState current_state_;
+  // cwin vars
+  uint32_t current_sync_win_;
+  uint32_t max_sync_win_;
+
+  // controller var
+  std::unique_ptr<asio::steady_timer> round_timer_;
+  std::unique_ptr<asio::steady_timer> scheduler_timer_;
+  bool scheduler_timer_on_;
+
+  // timeouts
+  std::unordered_set<uint32_t> timeouts_or_nacks_;
+
+  // names/packets var
+  uint32_t next_segment_;
+
+  std::shared_ptr<RTCState> state_;
+  std::shared_ptr<RTCRateControl> rc_;
+  std::shared_ptr<RTCLossDetectionAndRecovery> ldr_;
+
+  uint32_t number_;
+};
+
+}  // namespace rtc
+
+}  // namespace protocol
+
+}  // namespace transport