1// Copyright 2014 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
5#ifndef IPC_MESSAGE_FILTER_ROUTER_H_
6#define IPC_MESSAGE_FILTER_ROUTER_H_
7
8#include <vector>
9
10#include "ipc/ipc_message_start.h"
11
12namespace IPC {
13
14class Message;
15class MessageFilter;
16
17class MessageFilterRouter {
18 public:
19  typedef std::vector<MessageFilter*> MessageFilters;
20
21  MessageFilterRouter();
22  ~MessageFilterRouter();
23
24  void AddFilter(MessageFilter* filter);
25  void RemoveFilter(MessageFilter* filter);
26  bool TryFilters(const Message& message);
27  void Clear();
28
29 private:
30  // List of global and selective filters; a given filter will exist in either
31  // |message_global_filters_| OR |message_class_filters_|, but not both.
32  // Note that |message_global_filters_| will be given first offering of any
33  // given message.  It's the filter implementer and installer's
34  // responsibility to ensure that a filter is either global or selective to
35  // ensure proper message filtering order.
36  MessageFilters global_filters_;
37  MessageFilters message_class_filters_[LastIPCMsgStart];
38};
39
40}  // namespace IPC
41
42#endif  // IPC_MESSAGE_FILTER_ROUTER_H_
43