Luis Hector Chavez | 645501c | 2016-12-28 10:56:26 -0800 | [diff] [blame] | 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 |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef IPC_IPC_PLATFORM_FILE_ATTACHMENT_H_ |
| 6 | #define IPC_IPC_PLATFORM_FILE_ATTACHMENT_H_ |
| 7 | |
| 8 | #include "ipc/ipc_export.h" |
| 9 | #include "ipc/ipc_message_attachment.h" |
| 10 | |
| 11 | namespace IPC { |
| 12 | namespace internal { |
| 13 | |
| 14 | // A platform file that is sent over |Channel| as a part of |Message|. |
| 15 | // PlatformFileAttachment optionally owns the file and |owning_| is set in that |
| 16 | // case. Also, |file_| is not cleared even after the ownership is taken. |
| 17 | // Some old clients require this strange behavior. |
| 18 | class IPC_EXPORT PlatformFileAttachment : public MessageAttachment { |
| 19 | public: |
| 20 | // Non-owning constructor |
| 21 | explicit PlatformFileAttachment(base::PlatformFile file); |
| 22 | // Owning constructor |
| 23 | explicit PlatformFileAttachment(base::ScopedFD file); |
| 24 | |
| 25 | Type GetType() const override; |
Jay Civelli | cfc1eaa | 2017-08-21 17:18:10 -0700 | [diff] [blame] | 26 | base::PlatformFile TakePlatformFile(); |
Luis Hector Chavez | 645501c | 2016-12-28 10:56:26 -0800 | [diff] [blame] | 27 | |
| 28 | base::PlatformFile file() const { return file_; } |
| 29 | bool Owns() const { return owning_.is_valid(); } |
| 30 | |
| 31 | private: |
| 32 | ~PlatformFileAttachment() override; |
| 33 | |
| 34 | base::PlatformFile file_; |
| 35 | base::ScopedFD owning_; |
| 36 | }; |
| 37 | |
| 38 | base::PlatformFile GetPlatformFile(scoped_refptr<MessageAttachment> attachment); |
| 39 | |
| 40 | } // namespace internal |
| 41 | } // namespace IPC |
| 42 | |
| 43 | #endif // IPC_IPC_PLATFORM_FILE_ATTACHMENT_H_ |