Make P2PTransportChannel inherit from IceTransportInternal.

webrtc/p2p/base/dtlstransportchannel.h

 /*
  *  Copyright 2011 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_P2P_BASE_DTLSTRANSPORTCHANNEL_H_
 #define WEBRTC_P2P_BASE_DTLSTRANSPORTCHANNEL_H_
 
 #include <memory>
 #include <string>
 #include <vector>
 
-#include "webrtc/p2p/base/transportchannelimpl.h"
 #include "webrtc/base/buffer.h"
 #include "webrtc/base/bufferqueue.h"
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/base/sslstreamadapter.h"
 #include "webrtc/base/stream.h"
+#include "webrtc/p2p/base/icetransportinternal.h"
+#include "webrtc/p2p/base/transportchannelimpl.h"
 
 namespace rtc {
 class PacketTransportInterface;
 }
 
 namespace cricket {
 
-// A bridge between a packet-oriented/channel-type interface on
+// A bridge between a packet-oriented/transport-type interface on
 // the bottom and a StreamInterface on the top.
 class StreamInterfaceChannel : public rtc::StreamInterface {
  public:
-  explicit StreamInterfaceChannel(TransportChannel* channel);
+  explicit StreamInterfaceChannel(IceTransportInternal* channel);
 
   // Push in a packet; this gets pulled out from Read().
   bool OnPacketReceived(const char* data, size_t size);
 
   // Implementations of StreamInterface
   rtc::StreamState GetState() const override { return state_; }
   void Close() override;
   rtc::StreamResult Read(void* buffer,
                          size_t buffer_len,
                          size_t* read,
                          int* error) override;
   rtc::StreamResult Write(const void* data,
                           size_t data_len,
                           size_t* written,
                           int* error) override;
 
  private:
-  TransportChannel* channel_;  // owned by DtlsTransportChannelWrapper
+  IceTransportInternal* channel_;  // owned by DtlsTransportChannelWrapper
   rtc::StreamState state_;
   rtc::BufferQueue packets_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(StreamInterfaceChannel);
 };
 
 
 // This class provides a DTLS SSLStreamAdapter inside a TransportChannel-style
 // packet-based interface, wrapping an existing TransportChannel instance
 // (e.g a P2PTransportChannel)
@@ skipping 17 matching lines @@
 //   - Data written to DtlsTransportChannelWrapper is passed either to
 //      downward_ or directly to channel_, depending on whether DTLS is
 //     negotiated and whether the flags include PF_SRTP_BYPASS
 //
 //   - The SSLStreamAdapter writes to downward_->Write()
 //     which translates it into packet writes on channel_.
 class DtlsTransportChannelWrapper : public TransportChannelImpl {
  public:
   // The parameters here are:
   // channel -- the TransportChannel we are wrapping
-  explicit DtlsTransportChannelWrapper(TransportChannelImpl* channel);
+  explicit DtlsTransportChannelWrapper(IceTransportInternal* channel);
   ~DtlsTransportChannelWrapper() override;
 
   void SetIceRole(IceRole role) override { channel_->SetIceRole(role); }
   IceRole GetIceRole() const override { return channel_->GetIceRole(); }
   bool SetLocalCertificate(
       const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) override;
   rtc::scoped_refptr<rtc::RTCCertificate> GetLocalCertificate() const override;
 
   bool SetRemoteFingerprint(const std::string& digest_alg,
                             const uint8_t* digest,
@@ skipping 52 matching lines @@
                             uint8_t* result,
                             size_t result_len) override {
     return (dtls_.get()) ? dtls_->ExportKeyingMaterial(label, context,
                                                        context_len,
                                                        use_context,
                                                        result, result_len)
         : false;
   }
 
   // TransportChannelImpl calls.
-  TransportChannelState GetState() const override {
-    return channel_->GetState();
-  }
+  IceTransportState GetState() const override { return channel_->GetState(); }
   void SetIceTiebreaker(uint64_t tiebreaker) override {
     channel_->SetIceTiebreaker(tiebreaker);
   }
   void SetIceParameters(const IceParameters& ice_params) override {
     channel_->SetIceParameters(ice_params);
   }
   void SetRemoteIceParameters(const IceParameters& ice_params) override {
     channel_->SetRemoteIceParameters(ice_params);
   }
   void SetRemoteIceMode(IceMode mode) override {
@@ skipping 15 matching lines @@
 
   void SetMetricsObserver(webrtc::MetricsObserverInterface* observer) override {
     channel_->SetMetricsObserver(observer);
   }
 
   void SetIceConfig(const IceConfig& config) override {
     channel_->SetIceConfig(config);
   }
 
   // Needed by DtlsTransport.
-  TransportChannelImpl* channel() { return channel_; }
+  IceTransportInternal* channel() { return channel_; }
 
   // For informational purposes. Tells if the DTLS handshake has finished.
   // This may be true even if writable() is false, if the remote fingerprint
   // has not yet been verified.
   bool IsDtlsConnected();
 
  private:
   void OnWritableState(rtc::PacketTransportInterface* transport);
   void OnReadPacket(rtc::PacketTransportInterface* transport,
                     const char* data,
                     size_t size,
                     const rtc::PacketTime& packet_time,
                     int flags);
   void OnSentPacket(rtc::PacketTransportInterface* transport,
                     const rtc::SentPacket& sent_packet);
   void OnReadyToSend(rtc::PacketTransportInterface* transport);
   void OnReceivingState(rtc::PacketTransportInterface* transport);
   void OnDtlsEvent(rtc::StreamInterface* stream_, int sig, int err);
   bool SetupDtls();
   void MaybeStartDtls();
   bool HandleDtlsPacket(const char* data, size_t size);
-  void OnGatheringState(TransportChannelImpl* channel);
-  void OnCandidateGathered(TransportChannelImpl* channel, const Candidate& c);
-  void OnCandidatesRemoved(TransportChannelImpl* channel,
+  void OnGatheringState(IceTransportInternal* channel);
+  void OnCandidateGathered(IceTransportInternal* channel, const Candidate& c);
+  void OnCandidatesRemoved(IceTransportInternal* channel,
                            const Candidates& candidates);
-  void OnRoleConflict(TransportChannelImpl* channel);
-  void OnRouteChange(TransportChannel* channel, const Candidate& candidate);
+  void OnRoleConflict(IceTransportInternal* channel);
+  void OnRouteChange(IceTransportInternal* channel, const Candidate& candidate);
   void OnSelectedCandidatePairChanged(
-      TransportChannel* channel,
+      IceTransportInternal* channel,
       CandidatePairInterface* selected_candidate_pair,
       int last_sent_packet_id,
       bool ready_to_send);
-  void OnChannelStateChanged(TransportChannelImpl* channel);
+  void OnChannelStateChanged(IceTransportInternal* channel);
   void OnDtlsHandshakeError(rtc::SSLHandshakeError error);
 
   rtc::Thread* network_thread_;  // Everything should occur on this thread.
   // Underlying channel, not owned by this class.
-  TransportChannelImpl* const channel_;
+  IceTransportInternal* const channel_;
   std::unique_ptr<rtc::SSLStreamAdapter> dtls_;  // The DTLS stream
   StreamInterfaceChannel* downward_;  // Wrapper for channel_, owned by dtls_.
   std::vector<int> srtp_ciphers_;     // SRTP ciphers to use with DTLS.
   bool dtls_active_ = false;
   rtc::scoped_refptr<rtc::RTCCertificate> local_certificate_;
   rtc::SSLRole ssl_role_;
   rtc::SSLProtocolVersion ssl_max_version_;
   rtc::Buffer remote_fingerprint_value_;
   std::string remote_fingerprint_algorithm_;
 
   // Cached DTLS ClientHello packet that was received before we started the
   // DTLS handshake. This could happen if the hello was received before the
   // transport channel became writable, or before a remote fingerprint was
   // received.
   rtc::Buffer cached_client_hello_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(DtlsTransportChannelWrapper);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_DTLSTRANSPORTCHANNEL_H_