1*635a8641SAndroid Build Coastguard Worker // Copyright (c) 2015 The Chromium Authors. All rights reserved. 2*635a8641SAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be 3*635a8641SAndroid Build Coastguard Worker // found in the LICENSE file. 4*635a8641SAndroid Build Coastguard Worker 5*635a8641SAndroid Build Coastguard Worker #ifndef IPC_IPC_MESSAGE_ATTACHMENT_H_ 6*635a8641SAndroid Build Coastguard Worker #define IPC_IPC_MESSAGE_ATTACHMENT_H_ 7*635a8641SAndroid Build Coastguard Worker 8*635a8641SAndroid Build Coastguard Worker #include "base/files/file.h" 9*635a8641SAndroid Build Coastguard Worker #include "base/macros.h" 10*635a8641SAndroid Build Coastguard Worker #include "base/memory/ref_counted.h" 11*635a8641SAndroid Build Coastguard Worker #include "base/pickle.h" 12*635a8641SAndroid Build Coastguard Worker #include "build/build_config.h" 13*635a8641SAndroid Build Coastguard Worker #include "ipc/ipc_message_support_export.h" 14*635a8641SAndroid Build Coastguard Worker #include "mojo/public/cpp/system/handle.h" 15*635a8641SAndroid Build Coastguard Worker 16*635a8641SAndroid Build Coastguard Worker namespace IPC { 17*635a8641SAndroid Build Coastguard Worker 18*635a8641SAndroid Build Coastguard Worker // Auxiliary data sent with |Message|. This can be a platform file descriptor 19*635a8641SAndroid Build Coastguard Worker // or a mojo |MessagePipe|. |GetType()| returns the type of the subclass. 20*635a8641SAndroid Build Coastguard Worker class IPC_MESSAGE_SUPPORT_EXPORT MessageAttachment 21*635a8641SAndroid Build Coastguard Worker : public base::Pickle::Attachment { 22*635a8641SAndroid Build Coastguard Worker public: 23*635a8641SAndroid Build Coastguard Worker enum class Type { 24*635a8641SAndroid Build Coastguard Worker MOJO_HANDLE, 25*635a8641SAndroid Build Coastguard Worker PLATFORM_FILE, 26*635a8641SAndroid Build Coastguard Worker WIN_HANDLE, 27*635a8641SAndroid Build Coastguard Worker MACH_PORT, 28*635a8641SAndroid Build Coastguard Worker FUCHSIA_HANDLE, 29*635a8641SAndroid Build Coastguard Worker }; 30*635a8641SAndroid Build Coastguard Worker 31*635a8641SAndroid Build Coastguard Worker static scoped_refptr<MessageAttachment> CreateFromMojoHandle( 32*635a8641SAndroid Build Coastguard Worker mojo::ScopedHandle handle, 33*635a8641SAndroid Build Coastguard Worker Type type); 34*635a8641SAndroid Build Coastguard Worker 35*635a8641SAndroid Build Coastguard Worker virtual Type GetType() const = 0; 36*635a8641SAndroid Build Coastguard Worker 37*635a8641SAndroid Build Coastguard Worker mojo::ScopedHandle TakeMojoHandle(); 38*635a8641SAndroid Build Coastguard Worker 39*635a8641SAndroid Build Coastguard Worker protected: 40*635a8641SAndroid Build Coastguard Worker friend class base::RefCountedThreadSafe<MessageAttachment>; 41*635a8641SAndroid Build Coastguard Worker MessageAttachment(); 42*635a8641SAndroid Build Coastguard Worker ~MessageAttachment() override; 43*635a8641SAndroid Build Coastguard Worker 44*635a8641SAndroid Build Coastguard Worker DISALLOW_COPY_AND_ASSIGN(MessageAttachment); 45*635a8641SAndroid Build Coastguard Worker }; 46*635a8641SAndroid Build Coastguard Worker 47*635a8641SAndroid Build Coastguard Worker } // namespace IPC 48*635a8641SAndroid Build Coastguard Worker 49*635a8641SAndroid Build Coastguard Worker #endif // IPC_IPC_MESSAGE_ATTACHMENT_H_ 50