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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef IPC_IPC_MESSAGE_H_ | 5 #ifndef IPC_IPC_MESSAGE_H_ |
6 #define IPC_IPC_MESSAGE_H_ | 6 #define IPC_IPC_MESSAGE_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
12 #include "base/pickle.h" | 12 #include "base/pickle.h" |
13 #include "ipc/ipc_export.h" | 13 #include "ipc/ipc_export.h" |
14 | 14 |
| 15 // TODO(brettw) remove this when the "typedef Sender" is removed below. |
| 16 #include "ipc/ipc_sender.h" |
| 17 |
15 // Ipc logging adds a dependency from the 'chrome' target on all ipc message | 18 // Ipc logging adds a dependency from the 'chrome' target on all ipc message |
16 // classes. In a component build, this would require exporting all message | 19 // classes. In a component build, this would require exporting all message |
17 // classes, so don't support ipc logging in the components build. | 20 // classes, so don't support ipc logging in the components build. |
18 #if !defined(NDEBUG) && !defined(COMPONENT_BUILD) | 21 #if !defined(NDEBUG) && !defined(COMPONENT_BUILD) |
19 #define IPC_MESSAGE_LOG_ENABLED | 22 #define IPC_MESSAGE_LOG_ENABLED |
20 #endif | 23 #endif |
21 | 24 |
22 #if defined(OS_POSIX) | 25 #if defined(OS_POSIX) |
23 #include "base/memory/ref_counted.h" | 26 #include "base/memory/ref_counted.h" |
24 #endif | 27 #endif |
25 | 28 |
26 namespace base { | 29 namespace base { |
27 struct FileDescriptor; | 30 struct FileDescriptor; |
28 } | 31 } |
29 | 32 |
30 class FileDescriptorSet; | 33 class FileDescriptorSet; |
31 | 34 |
32 namespace IPC { | 35 namespace IPC { |
33 | 36 |
34 //------------------------------------------------------------------------------ | 37 //------------------------------------------------------------------------------ |
35 | 38 |
36 class Channel; | 39 class Channel; |
37 class Message; | 40 class Message; |
38 struct LogData; | 41 struct LogData; |
39 | 42 |
40 class IPC_EXPORT Message : public Pickle { | 43 class IPC_EXPORT Message : public Pickle { |
41 public: | 44 public: |
42 // Implemented by objects that can send IPC messages across a channel. | 45 // IPC::Sender used to be IPC::Message::Sender which prevented forward |
43 class IPC_EXPORT Sender { | 46 // declarations. To keep existing code compiling, we provide this backwards- |
44 public: | 47 // compatible definition. New code should use IPC::Sender. |
45 virtual ~Sender() {} | 48 // TODO(brettw) convert users of this and delete. |
46 | 49 typedef IPC::Sender Sender; |
47 // Sends the given IPC message. The implementor takes ownership of the | |
48 // given Message regardless of whether or not this method succeeds. This | |
49 // is done to make this method easier to use. Returns true on success and | |
50 // false otherwise. | |
51 virtual bool Send(Message* msg) = 0; | |
52 }; | |
53 | 50 |
54 enum PriorityValue { | 51 enum PriorityValue { |
55 PRIORITY_LOW = 1, | 52 PRIORITY_LOW = 1, |
56 PRIORITY_NORMAL, | 53 PRIORITY_NORMAL, |
57 PRIORITY_HIGH | 54 PRIORITY_HIGH |
58 }; | 55 }; |
59 | 56 |
60 // Bit values used in the flags field. | 57 // Bit values used in the flags field. |
61 enum { | 58 enum { |
62 PRIORITY_MASK = 0x0003, // Low 2 bits of store the priority value. | 59 PRIORITY_MASK = 0x0003, // Low 2 bits of store the priority value. |
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282 MSG_ROUTING_NONE = -2, | 279 MSG_ROUTING_NONE = -2, |
283 | 280 |
284 // indicates a general message not sent to a particular tab. | 281 // indicates a general message not sent to a particular tab. |
285 MSG_ROUTING_CONTROL = kint32max, | 282 MSG_ROUTING_CONTROL = kint32max, |
286 }; | 283 }; |
287 | 284 |
288 #define IPC_REPLY_ID 0xFFFFFFF0 // Special message id for replies | 285 #define IPC_REPLY_ID 0xFFFFFFF0 // Special message id for replies |
289 #define IPC_LOGGING_ID 0xFFFFFFF1 // Special message id for logging | 286 #define IPC_LOGGING_ID 0xFFFFFFF1 // Special message id for logging |
290 | 287 |
291 #endif // IPC_IPC_MESSAGE_H_ | 288 #endif // IPC_IPC_MESSAGE_H_ |
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