Chromoting to report roundtrip latency

remoting/protocol/host_message_dispatcher.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/memory/ref_counted.h"
 #include "net/base/io_buffer.h"
 #include "remoting/proto/control.pb.h"
 #include "remoting/proto/event.pb.h"
 #include "remoting/proto/internal.pb.h"
 #include "remoting/protocol/connection_to_client.h"
 #include "remoting/protocol/host_message_dispatcher.h"
 #include "remoting/protocol/host_stub.h"
 #include "remoting/protocol/input_stub.h"
 #include "remoting/protocol/message_reader.h"
 #include "remoting/protocol/session.h"
 
 namespace remoting {
 namespace protocol {
 
 HostMessageDispatcher::HostMessageDispatcher() :
     host_stub_(NULL),
     input_stub_(NULL) {
 }
 
 HostMessageDispatcher::~HostMessageDispatcher() {
 }
 
 void HostMessageDispatcher::Initialize(
-    protocol::Session* session,
+    ConnectionToClient* connection,
     HostStub* host_stub, InputStub* input_stub) {
-  if (!session || !host_stub || !input_stub ||
-      !session->event_channel() || !session->control_channel()) {
+  if (!connection || !host_stub || !input_stub ||
+      !connection->session()->event_channel() ||
+      !connection->session()->control_channel()) {
     return;
   }
 
   control_message_reader_.reset(new ProtobufMessageReader<ControlMessage>());
   event_message_reader_.reset(new ProtobufMessageReader<EventMessage>());
+  connection_ = connection;
   host_stub_ = host_stub;
   input_stub_ = input_stub;
 
   // Initialize the readers on the sockets provided by channels.
   event_message_reader_->Init(
-      session->event_channel(),
+      connection->session()->event_channel(),
       NewCallback(this, &HostMessageDispatcher::OnEventMessageReceived));
   control_message_reader_->Init(
-      session->control_channel(),
+      connection->session()->control_channel(),
       NewCallback(this, &HostMessageDispatcher::OnControlMessageReceived));
 }
 
 void HostMessageDispatcher::OnControlMessageReceived(
     ControlMessage* message, Task* done_task) {
   // TODO(sergeyu): Add message validation.
   if (message->has_begin_session_request()) {
     host_stub_->BeginSessionRequest(
         &message->begin_session_request().credentials(), done_task);
     return;
   }
   if (message->has_suggest_resolution()) {
     host_stub_->SuggestResolution(&message->suggest_resolution(), done_task);
     return;
   }
   LOG(WARNING) << "Invalid control message received.";
   done_task->Run();
   delete done_task;
 }
 
 void HostMessageDispatcher::OnEventMessageReceived(
     EventMessage* message, Task* done_task) {
   // TODO(sergeyu): Add message validation.
+  connection_->UpdateSequenceNumber(message->sequence_number());
   if (message->has_key_event()) {
     input_stub_->InjectKeyEvent(&message->key_event(), done_task);
     return;
   }
   if (message->has_mouse_event()) {
     input_stub_->InjectMouseEvent(&message->mouse_event(), done_task);
     return;
   }
   LOG(WARNING) << "Invalid event message received.";
   done_task->Run();
   delete done_task;
 }
 
 }  // namespace protocol
 }  // namespace remoting