dmichael@chromium.org | c0c370e | 2014-04-25 09:07:30 +0900 | [diff] [blame] | 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 | |
| 12 | namespace IPC { |
| 13 | |
| 14 | class Message; |
| 15 | class MessageFilter; |
| 16 | |
| 17 | class 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_ |