summaryrefslogtreecommitdiffstats
path: root/content/common/message_router.cc
blob: 469d85e9f1bcb4f7114ef2c341d3db6b11f39a17 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
// 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 "content/common/message_router.h"

#include "ipc/ipc_message.h"

namespace content {

MessageRouter::MessageRouter() {
}

MessageRouter::~MessageRouter() {
}

bool MessageRouter::OnControlMessageReceived(const IPC::Message& msg) {
  NOTREACHED() <<
      "should override in subclass if you care about control messages";
  return false;
}

bool MessageRouter::Send(IPC::Message* msg) {
  NOTREACHED() <<
      "should override in subclass if you care about sending messages";
  return false;
}

bool MessageRouter::AddRoute(int32 routing_id, IPC::Listener* listener) {
  if (routes_.Lookup(routing_id)) {
    DLOG(ERROR) << "duplicate routing ID";
    return false;
  }
  routes_.AddWithID(listener, routing_id);
  return true;
}

void MessageRouter::RemoveRoute(int32 routing_id) {
  routes_.Remove(routing_id);
}

bool MessageRouter::OnMessageReceived(const IPC::Message& msg) {
  if (msg.routing_id() == MSG_ROUTING_CONTROL)
    return OnControlMessageReceived(msg);

  return RouteMessage(msg);
}

bool MessageRouter::RouteMessage(const IPC::Message& msg) {
  IPC::Listener* listener = routes_.Lookup(msg.routing_id());
  if (!listener)
    return false;

  listener->OnMessageReceived(msg);
  return true;
}

}  // namespace content