message_router.cc 1.5 KB

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  1. // Copyright (c) 2011 The Chromium Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style license that can be
  3. // found in the LICENSE file.
  4. #include "ipc/message_router.h"
  5. #include "base/logging.h"
  6. #include "ipc/ipc_message.h"
  7. namespace IPC {
  8. MessageRouter::MessageRouter() = default;
  9. MessageRouter::~MessageRouter() = default;
  10. bool MessageRouter::OnControlMessageReceived(const IPC::Message& msg) {
  11. NOTREACHED()
  12. << "should override in subclass if you care about control messages";
  13. return false;
  14. }
  15. bool MessageRouter::Send(IPC::Message* msg) {
  16. NOTREACHED()
  17. << "should override in subclass if you care about sending messages";
  18. return false;
  19. }
  20. bool MessageRouter::AddRoute(int32_t routing_id, IPC::Listener* listener) {
  21. if (routes_.Lookup(routing_id)) {
  22. DLOG(ERROR) << "duplicate routing ID";
  23. return false;
  24. }
  25. routes_.AddWithID(listener, routing_id);
  26. return true;
  27. }
  28. void MessageRouter::RemoveRoute(int32_t routing_id) {
  29. routes_.Remove(routing_id);
  30. }
  31. Listener* MessageRouter::GetRoute(int32_t routing_id) {
  32. return routes_.Lookup(routing_id);
  33. }
  34. bool MessageRouter::OnMessageReceived(const IPC::Message& msg) {
  35. if (msg.routing_id() == MSG_ROUTING_CONTROL)
  36. return OnControlMessageReceived(msg);
  37. return RouteMessage(msg);
  38. }
  39. bool MessageRouter::RouteMessage(const IPC::Message& msg) {
  40. IPC::Listener* listener = routes_.Lookup(msg.routing_id());
  41. if (!listener)
  42. return false;
  43. return listener->OnMessageReceived(msg);
  44. }
  45. } // namespace IPC