1*6777b538SAndroid Build Coastguard Worker // Copyright 2015 The Chromium Authors 2*6777b538SAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be 3*6777b538SAndroid Build Coastguard Worker // found in the LICENSE file. 4*6777b538SAndroid Build Coastguard Worker 5*6777b538SAndroid Build Coastguard Worker #ifndef IPC_IPC_MOJO_HANDLE_ATTACHMENT_H_ 6*6777b538SAndroid Build Coastguard Worker #define IPC_IPC_MOJO_HANDLE_ATTACHMENT_H_ 7*6777b538SAndroid Build Coastguard Worker 8*6777b538SAndroid Build Coastguard Worker #include "build/build_config.h" 9*6777b538SAndroid Build Coastguard Worker #include "ipc/ipc_message_attachment.h" 10*6777b538SAndroid Build Coastguard Worker #include "ipc/ipc_message_support_export.h" 11*6777b538SAndroid Build Coastguard Worker #include "mojo/public/cpp/system/handle.h" 12*6777b538SAndroid Build Coastguard Worker 13*6777b538SAndroid Build Coastguard Worker namespace IPC { 14*6777b538SAndroid Build Coastguard Worker 15*6777b538SAndroid Build Coastguard Worker namespace internal { 16*6777b538SAndroid Build Coastguard Worker 17*6777b538SAndroid Build Coastguard Worker // A MessageAttachment that holds a MojoHandle. 18*6777b538SAndroid Build Coastguard Worker // This can hold any type of transferrable Mojo handle (i.e. message pipe, data 19*6777b538SAndroid Build Coastguard Worker // pipe, etc), but the receiver is expected to know what type of handle to 20*6777b538SAndroid Build Coastguard Worker // expect. 21*6777b538SAndroid Build Coastguard Worker class IPC_MESSAGE_SUPPORT_EXPORT MojoHandleAttachment 22*6777b538SAndroid Build Coastguard Worker : public MessageAttachment { 23*6777b538SAndroid Build Coastguard Worker public: 24*6777b538SAndroid Build Coastguard Worker explicit MojoHandleAttachment(mojo::ScopedHandle handle); 25*6777b538SAndroid Build Coastguard Worker 26*6777b538SAndroid Build Coastguard Worker MojoHandleAttachment(const MojoHandleAttachment&) = delete; 27*6777b538SAndroid Build Coastguard Worker MojoHandleAttachment& operator=(const MojoHandleAttachment&) = delete; 28*6777b538SAndroid Build Coastguard Worker 29*6777b538SAndroid Build Coastguard Worker Type GetType() const override; 30*6777b538SAndroid Build Coastguard Worker 31*6777b538SAndroid Build Coastguard Worker // Returns the owning handle transferring the ownership. 32*6777b538SAndroid Build Coastguard Worker mojo::ScopedHandle TakeHandle(); 33*6777b538SAndroid Build Coastguard Worker 34*6777b538SAndroid Build Coastguard Worker private: 35*6777b538SAndroid Build Coastguard Worker ~MojoHandleAttachment() override; 36*6777b538SAndroid Build Coastguard Worker mojo::ScopedHandle handle_; 37*6777b538SAndroid Build Coastguard Worker }; 38*6777b538SAndroid Build Coastguard Worker 39*6777b538SAndroid Build Coastguard Worker } // namespace internal 40*6777b538SAndroid Build Coastguard Worker } // namespace IPC 41*6777b538SAndroid Build Coastguard Worker 42*6777b538SAndroid Build Coastguard Worker #endif // IPC_IPC_MOJO_HANDLE_ATTACHMENT_H_ 43