| // 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 <stddef.h> |
| #include <stdint.h> |
| |
| #include <algorithm> |
| |
| #include "base/macros.h" |
| #include "build/build_config.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: |
| enum BrokerableType { |
| PLACEHOLDER, |
| WIN_HANDLE, |
| MACH_PORT, |
| }; |
| |
| // Whether the attachment still needs information from the broker before it |
| // can be used. |
| bool NeedsBrokering() const; |
| |
| // Returns TYPE_BROKERABLE_ATTACHMENT |
| Type GetType() const override; |
| |
| virtual BrokerableType GetBrokerableType() const = 0; |
| |
| // MessageAttachment override. |
| #if defined(OS_POSIX) |
| base::PlatformFile TakePlatformFile() override; |
| #endif // OS_POSIX |
| |
| protected: |
| BrokerableAttachment(); |
| ~BrokerableAttachment() override; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(BrokerableAttachment); |
| }; |
| |
| } // namespace IPC |
| |
| #endif // IPC_BROKERABLE_ATTACHMENT_H_ |