45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
// Copyright (c) 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef IPC_IPC_PLATFORM_FILE_ATTACHMENT_H_
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#define IPC_IPC_PLATFORM_FILE_ATTACHMENT_H_
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#include "ipc/ipc_message_attachment.h"
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#include "ipc/ipc_message_support_export.h"
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namespace IPC {
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namespace internal {
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// A platform file that is sent over |Channel| as a part of |Message|.
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// PlatformFileAttachment optionally owns the file and |owning_| is set in that
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// case. Also, |file_| is not cleared even after the ownership is taken.
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// Some old clients require this strange behavior.
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class IPC_MESSAGE_SUPPORT_EXPORT PlatformFileAttachment
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: public MessageAttachment {
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public:
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// Non-owning constructor
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explicit PlatformFileAttachment(base::PlatformFile file);
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// Owning constructor
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explicit PlatformFileAttachment(base::ScopedFD file);
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Type GetType() const override;
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base::PlatformFile TakePlatformFile();
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base::PlatformFile file() const { return file_; }
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bool Owns() const { return owning_.is_valid(); }
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private:
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~PlatformFileAttachment() override;
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base::PlatformFile file_;
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base::ScopedFD owning_;
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};
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base::PlatformFile GetPlatformFile(scoped_refptr<MessageAttachment> attachment);
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} // namespace internal
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} // namespace IPC
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#endif // IPC_IPC_PLATFORM_FILE_ATTACHMENT_H_
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