Remove the dependency of TransportChannel and TransportChannelImpl.

webrtc/p2p/base/p2ptransportchannel.cc

 /*
  *  Copyright 2004 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.
  */
 
@@ skipping 83 matching lines @@
 static const int DEFAULT_REGATHER_ON_FAILED_NETWORKS_INTERVAL = 5 * 60 * 1000;
 
 static constexpr int DEFAULT_BACKUP_CONNECTION_PING_INTERVAL = 25 * 1000;
 
 static constexpr int a_is_better = 1;
 static constexpr int b_is_better = -1;
 
 P2PTransportChannel::P2PTransportChannel(const std::string& transport_name,
                                          int component,
                                          PortAllocator* allocator)
-    : TransportChannelImpl(transport_name, component),
+    : transport_name_(transport_name),
+      component_(component),
       allocator_(allocator),
       network_thread_(rtc::Thread::Current()),
       incoming_only_(false),
       error_(0),
       sort_dirty_(false),
       remote_ice_mode_(ICEMODE_FULL),
       ice_role_(ICEROLE_UNKNOWN),
       tiebreaker_(0),
       gathering_state_(kIceGatheringNew),
       check_receiving_interval_(MIN_CHECK_RECEIVING_INTERVAL * 5),
@@ skipping 150 matching lines @@
   RTC_DCHECK(network_thread_ == rtc::Thread::Current());
   if (!ports_.empty() || !pruned_ports_.empty()) {
     LOG(LS_ERROR)
         << "Attempt to change tiebreaker after Port has been allocated.";
     return;
   }
 
   tiebreaker_ = tiebreaker;
 }
 
-TransportChannelState P2PTransportChannel::GetState() const {
+IceTransportState P2PTransportChannel::GetState() const {
   return state_;
 }
 
 // A channel is considered ICE completed once there is at most one active
 // connection per network and at least one active connection.
-TransportChannelState P2PTransportChannel::ComputeState() const {
+IceTransportState P2PTransportChannel::ComputeState() const {
   if (!had_connection_) {
-    return TransportChannelState::STATE_INIT;
+    return IceTransportState::STATE_INIT;
   }
 
   std::vector<Connection*> active_connections;
   for (Connection* connection : connections_) {
     if (connection->active()) {
       active_connections.push_back(connection);
     }
   }
   if (active_connections.empty()) {
-    return TransportChannelState::STATE_FAILED;
+    return IceTransportState::STATE_FAILED;
   }
 
   std::set<rtc::Network*> networks;
   for (Connection* connection : active_connections) {
     rtc::Network* network = connection->port()->Network();
     if (networks.find(network) == networks.end()) {
       networks.insert(network);
     } else {
       LOG_J(LS_VERBOSE, this) << "Ice not completed yet for this channel as "
                               << network->ToString()
                               << " has more than 1 connection.";
-      return TransportChannelState::STATE_CONNECTING;
+      return IceTransportState::STATE_CONNECTING;
     }
   }
 
-  return TransportChannelState::STATE_COMPLETED;
+  return IceTransportState::STATE_COMPLETED;
 }
 
 void P2PTransportChannel::SetIceParameters(const IceParameters& ice_params) {
   RTC_DCHECK(network_thread_ == rtc::Thread::Current());
   LOG(LS_INFO) << "Set ICE ufrag: " << ice_params.ufrag
                << " pwd: " << ice_params.pwd << " on transport "
                << transport_name();
   ice_parameters_ = ice_params;
   // Note: Candidate gathering will restart when MaybeStartGathering is next
   // called.
@@ skipping 1064 matching lines @@
                                      ReadyToSend(selected_connection_));
 }
 
 // Warning: UpdateState should eventually be called whenever a connection
 // is added, deleted, or the write state of any connection changes so that the
 // transport controller will get the up-to-date channel state. However it
 // should not be called too often; in the case that multiple connection states
 // change, it should be called after all the connection states have changed. For
 // example, we call this at the end of SortConnectionsAndUpdateState.
 void P2PTransportChannel::UpdateState() {
-  TransportChannelState state = ComputeState();
+  IceTransportState state = ComputeState();
   if (state_ != state) {
-    LOG_J(LS_INFO, this) << "Transport channel state changed from " << state_
-                         << " to " << state;
+    LOG_J(LS_INFO, this) << "Transport channel state changed from "
+                         << static_cast<int>(state_) << " to "
+                         << static_cast<int>(state);
     // Check that the requested transition is allowed. Note that
     // P2PTransportChannel does not (yet) implement a direct mapping of the ICE
     // states from the standard; the difference is covered by
     // TransportController and PeerConnection.
     switch (state_) {
-      case STATE_INIT:
+      case IceTransportState::STATE_INIT:
         // TODO(deadbeef): Once we implement end-of-candidates signaling,
         // we shouldn't go from INIT to COMPLETED.
-        RTC_DCHECK(state == STATE_CONNECTING || state == STATE_COMPLETED);
+        RTC_DCHECK(state == IceTransportState::STATE_CONNECTING ||
+                   state == IceTransportState::STATE_COMPLETED);
         break;
-      case STATE_CONNECTING:
-        RTC_DCHECK(state == STATE_COMPLETED || state == STATE_FAILED);
+      case IceTransportState::STATE_CONNECTING:
+        RTC_DCHECK(state == IceTransportState::STATE_COMPLETED ||
+                   state == IceTransportState::STATE_FAILED);
         break;
-      case STATE_COMPLETED:
+      case IceTransportState::STATE_COMPLETED:
         // TODO(deadbeef): Once we implement end-of-candidates signaling,
         // we shouldn't go from COMPLETED to CONNECTING.
         // Though we *can* go from COMPlETED to FAILED, if consent expires.
-        RTC_DCHECK(state == STATE_CONNECTING || state == STATE_FAILED);
+        RTC_DCHECK(state == IceTransportState::STATE_CONNECTING ||
+                   state == IceTransportState::STATE_FAILED);
         break;
-      case STATE_FAILED:
+      case IceTransportState::STATE_FAILED:
         // TODO(deadbeef): Once we implement end-of-candidates signaling,
         // we shouldn't go from FAILED to CONNECTING or COMPLETED.
-        RTC_DCHECK(state == STATE_CONNECTING || state == STATE_COMPLETED);
+        RTC_DCHECK(state == IceTransportState::STATE_CONNECTING ||
+                   state == IceTransportState::STATE_COMPLETED);
         break;
       default:
         RTC_NOTREACHED();
         break;
     }
     state_ = state;
     SignalStateChanged(this);
   }
 
   // If our selected connection is "presumed writable" (TURN-TURN with no
@@ skipping 95 matching lines @@
       MarkConnectionPinged(conn);
     }
   }
   int delay = std::min(ping_interval, check_receiving_interval_);
   thread()->PostDelayed(RTC_FROM_HERE, delay, this, MSG_CHECK_AND_PING);
 }
 
 // A connection is considered a backup connection if the channel state
 // is completed, the connection is not the selected connection and it is active.
 bool P2PTransportChannel::IsBackupConnection(const Connection* conn) const {
-  return state_ == STATE_COMPLETED && conn != selected_connection_ &&
-         conn->active();
+  return state_ == IceTransportState::STATE_COMPLETED &&
+         conn != selected_connection_ && conn->active();
 }
 
 // Is the connection in a state for us to even consider pinging the other side?
 // We consider a connection pingable even if it's not connected because that's
 // how a TCP connection is kicked into reconnecting on the active side.
 bool P2PTransportChannel::IsPingable(const Connection* conn,
                                      int64_t now) const {
   const Candidate& remote = conn->remote_candidate();
   // We should never get this far with an empty remote ufrag.
   RTC_DCHECK(!remote.username().empty());
@@ skipping 459 matching lines @@
   }
 
   // During the initial state when nothing has been pinged yet, return the first
   // one in the ordered |connections_|.
   return *(std::find_if(connections_.begin(), connections_.end(),
                         [conn1, conn2](Connection* conn) {
                           return conn == conn1 || conn == conn2;
                         }));
 }
 
+void P2PTransportChannel::set_writable(bool writable) {
+  if (writable_ == writable) {
+    return;
+  }
+  LOG_J(LS_VERBOSE, this) << "set_writable from:" << writable_ << " to "
+                          << writable;
+  writable_ = writable;
+  if (writable_) {
+    SignalReadyToSend(this);
+  }
+  SignalWritableState(this);
+}
+
+void P2PTransportChannel::set_receiving(bool receiving) {
+  if (receiving_ == receiving) {
+    return;
+  }
+  receiving_ = receiving;
+  SignalReceivingState(this);
+}
+
 }  // namespace cricket