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1 // Copyright (c) 2015 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2015 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_ATTACHMENT_H_ | 5 #ifndef IPC_IPC_MESSAGE_ATTACHMENT_H_ |
6 #define IPC_IPC_MESSAGE_ATTACHMENT_H_ | 6 #define IPC_IPC_MESSAGE_ATTACHMENT_H_ |
7 | 7 |
8 #include "base/files/file.h" | 8 #include "base/files/file.h" |
9 #include "base/macros.h" | 9 #include "base/macros.h" |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
| 11 #include "base/pickle.h" |
11 #include "build/build_config.h" | 12 #include "build/build_config.h" |
12 #include "ipc/ipc_export.h" | 13 #include "ipc/ipc_export.h" |
13 | 14 |
14 namespace IPC { | 15 namespace IPC { |
15 | 16 |
16 // Auxiliary data sent with |Message|. This can be a platform file descriptor | 17 // Auxiliary data sent with |Message|. This can be a platform file descriptor |
17 // or a mojo |MessagePipe|. |GetType()| returns the type of the subclass. | 18 // or a mojo |MessagePipe|. |GetType()| returns the type of the subclass. |
18 class IPC_EXPORT MessageAttachment | 19 class IPC_EXPORT MessageAttachment : public base::Pickle::Attachment { |
19 : public base::RefCountedThreadSafe<MessageAttachment> { | |
20 public: | 20 public: |
21 enum Type { | 21 enum Type { |
22 TYPE_PLATFORM_FILE, // The instance is |PlatformFileAttachment|. | 22 TYPE_PLATFORM_FILE, // The instance is |PlatformFileAttachment|. |
23 TYPE_MOJO_HANDLE, // The instance is |MojoHandleAttachment|. | 23 TYPE_MOJO_HANDLE, // The instance is |MojoHandleAttachment|. |
24 TYPE_BROKERABLE_ATTACHMENT, // The instance is |BrokerableAttachment|. | 24 TYPE_BROKERABLE_ATTACHMENT, // The instance is |BrokerableAttachment|. |
25 }; | 25 }; |
26 | 26 |
27 virtual Type GetType() const = 0; | 27 virtual Type GetType() const = 0; |
28 | 28 |
29 #if defined(OS_POSIX) | 29 #if defined(OS_POSIX) |
30 virtual base::PlatformFile TakePlatformFile() = 0; | 30 virtual base::PlatformFile TakePlatformFile() = 0; |
31 #endif // OS_POSIX | 31 #endif // OS_POSIX |
32 | 32 |
33 protected: | 33 protected: |
34 friend class base::RefCountedThreadSafe<MessageAttachment>; | 34 friend class base::RefCountedThreadSafe<MessageAttachment>; |
35 MessageAttachment(); | 35 MessageAttachment(); |
36 virtual ~MessageAttachment(); | 36 ~MessageAttachment() override; |
37 | 37 |
38 DISALLOW_COPY_AND_ASSIGN(MessageAttachment); | 38 DISALLOW_COPY_AND_ASSIGN(MessageAttachment); |
39 }; | 39 }; |
40 | 40 |
41 } // namespace IPC | 41 } // namespace IPC |
42 | 42 |
43 #endif // IPC_IPC_MESSAGE_ATTACHMENT_H_ | 43 #endif // IPC_IPC_MESSAGE_ATTACHMENT_H_ |
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