Create //webrtc/api:libjingle_peerconnection_api + refactorings.

webrtc/api/quicdatatransport.h

-/*
- *  Copyright 2016 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_API_QUICDATATRANSPORT_H_
-#define WEBRTC_API_QUICDATATRANSPORT_H_
-
-#include <string>
-#include <unordered_map>
-
-#include "webrtc/api/datachannelinterface.h"
-#include "webrtc/api/quicdatachannel.h"
-#include "webrtc/base/scoped_ref_ptr.h"
-#include "webrtc/base/sigslot.h"
-#include "webrtc/base/thread.h"
-#include "webrtc/p2p/base/transportcontroller.h"
-
-namespace cricket {
-class QuicTransportChannel;
-class ReliableQuicStream;
-}  // namepsace cricket
-
-namespace webrtc {
-
-// QuicDataTransport creates QuicDataChannels for the PeerConnection. It also
-// handles QUIC stream demuxing by distributing incoming QUIC streams from the
-// QuicTransportChannel among the QuicDataChannels that it has created.
-//
-// QuicDataTransport reads the data channel ID from the incoming QUIC stream,
-// then looks it up in a map of ID => QuicDataChannel. If the data channel
-// exists, it sends the QUIC stream to the QuicDataChannel.
-class QuicDataTransport : public sigslot::has_slots<> {
- public:
-  QuicDataTransport(rtc::Thread* signaling_thread,
-                    rtc::Thread* worker_thread,
-                    rtc::Thread* network_thread,
-                    cricket::TransportController* transport_controller);
-  ~QuicDataTransport() override;
-
-  // The QuicDataTransport acts like a BaseChannel with these functions.
-  bool SetTransport(const std::string& transport_name);
-  const std::string& transport_name() const { return transport_name_; }
-  const std::string& content_name() const { return content_name_; }
-  void set_content_name(const std::string& content_name) {
-    content_name_ = content_name;
-  }
-
-  // Creates a QuicDataChannel that uses this QuicDataTransport.
-  rtc::scoped_refptr<DataChannelInterface> CreateDataChannel(
-      const std::string& label,
-      const DataChannelInit* config);
-
-  // Removes a QuicDataChannel with the given ID from the QuicDataTransport's
-  // data channel map.
-  void DestroyDataChannel(int id);
-
-  // True if the QuicDataTransport has a data channel with the given ID.
-  bool HasDataChannel(int id) const;
-
-  // True if the QuicDataTransport has data channels.
-  bool HasDataChannels() const;
-
-  cricket::QuicTransportChannel* quic_transport_channel() {
-    return quic_transport_channel_;
-  }
-
- private:
-  // Sets the QUIC transport channel for the QuicDataChannels and the
-  // QuicDataTransport. Returns false if a different QUIC transport channel is
-  // already set, the QUIC transport channel cannot be set for any of the
-  // QuicDataChannels, or |channel| is NULL.
-  bool SetTransportChannel(cricket::QuicTransportChannel* channel);
-
-  // Called from the QuicTransportChannel when a ReliableQuicStream is created
-  // to receive incoming data.
-  void OnIncomingStream(cricket::ReliableQuicStream* stream);
-  // Called from the ReliableQuicStream when the first QUIC stream frame is
-  // received for incoming data. The QuicDataTransport reads the data channel ID
-  // and message ID from the incoming data, then dispatches the
-  // ReliableQuicStream to the QuicDataChannel with the same data channel ID.
-  void OnDataReceived(net::QuicStreamId stream_id,
-                      const char* data,
-                      size_t len);
-
-  cricket::QuicTransportChannel* CreateTransportChannel(
-      const std::string& transport_name);
-  void DestroyTransportChannel(cricket::TransportChannel* transport_channel);
-
-  // Map of data channel ID => QUIC data channel values.
-  std::unordered_map<int, rtc::scoped_refptr<QuicDataChannel>>
-      data_channel_by_id_;
-  // Map of QUIC stream ID => ReliableQuicStream* values.
-  std::unordered_map<net::QuicStreamId, cricket::ReliableQuicStream*>
-      quic_stream_by_id_;
-  // QuicTransportChannel for sending/receiving data.
-  cricket::QuicTransportChannel* quic_transport_channel_ = nullptr;
-  // Threads for the QUIC data channel.
-  rtc::Thread* const signaling_thread_;
-  rtc::Thread* const worker_thread_;
-  rtc::Thread* const network_thread_;
-
-  cricket::TransportController* transport_controller_;
-  std::string content_name_;
-  std::string transport_name_;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_API_QUICDATATRANSPORT_H_