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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef IPC_BROKERABLE_ATTACHMENT_H_
#define IPC_BROKERABLE_ATTACHMENT_H_
#include <stdint.h>
#include "base/macros.h"
#include "ipc/ipc_export.h"
#include "ipc/ipc_message_attachment.h"
namespace IPC {
// This subclass of MessageAttachment requires an AttachmentBroker to be
// attached to a Chrome IPC message.
class IPC_EXPORT BrokerableAttachment : public MessageAttachment {
public:
// An id uniquely identifies an attachment sent via a broker.
struct IPC_EXPORT AttachmentId {
uint32_t nonce[4];
};
// The identifier is unique across all Chrome processes.
AttachmentId GetIdentifier() const;
protected:
BrokerableAttachment();
~BrokerableAttachment() override;
private:
// This member uniquely identifies a BrokerableAttachment across all Chrome
// processes.
AttachmentId id_;
DISALLOW_COPY_AND_ASSIGN(BrokerableAttachment);
};
} // namespace IPC
#endif // IPC_BROKERABLE_ATTACHMENT_H_
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