| // Copyright (c) 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_IPC_MOJO_HANDLE_ATTACHMENT_H_ |
| #define IPC_IPC_MOJO_HANDLE_ATTACHMENT_H_ |
| |
| #include "build/build_config.h" |
| #include "ipc/ipc_message_attachment.h" |
| #include "ipc/ipc_message_support_export.h" |
| #include "mojo/public/cpp/system/handle.h" |
| |
| namespace IPC { |
| |
| namespace internal { |
| |
| // A MessageAttachment that holds a MojoHandle. |
| // This can hold any type of transferrable Mojo handle (i.e. message pipe, data |
| // pipe, etc), but the receiver is expected to know what type of handle to |
| // expect. |
| class IPC_MESSAGE_SUPPORT_EXPORT MojoHandleAttachment |
| : public MessageAttachment { |
| public: |
| explicit MojoHandleAttachment(mojo::ScopedHandle handle); |
| |
| MojoHandleAttachment(const MojoHandleAttachment&) = delete; |
| MojoHandleAttachment& operator=(const MojoHandleAttachment&) = delete; |
| |
| Type GetType() const override; |
| |
| // Returns the owning handle transferring the ownership. |
| mojo::ScopedHandle TakeHandle(); |
| |
| private: |
| ~MojoHandleAttachment() override; |
| mojo::ScopedHandle handle_; |
| }; |
| |
| } // namespace internal |
| } // namespace IPC |
| |
| #endif // IPC_IPC_MOJO_HANDLE_ATTACHMENT_H_ |