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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_ | 5 #ifndef CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_ |
| 6 #define CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_ | 6 #define CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 | 9 |
| 10 #include "base/process/process.h" | 10 #include "base/process/process.h" |
| 11 #include "content/common/content_export.h" | 11 #include "content/common/content_export.h" |
| 12 #include "ipc/ipc_listener.h" | 12 #include "ipc/ipc_listener.h" |
| 13 #include "mojo/public/cpp/system/message_pipe.h" |
| 13 | 14 |
| 14 namespace IPC { | 15 namespace IPC { |
| 15 class Channel; | 16 class Channel; |
| 16 } | 17 } |
| 17 | 18 |
| 18 namespace service_manager { | |
| 19 class InterfaceProvider; | |
| 20 } | |
| 21 | |
| 22 namespace content { | 19 namespace content { |
| 23 | 20 |
| 24 // Interface that all users of ChildProcessHost need to provide. | 21 // Interface that all users of ChildProcessHost need to provide. |
| 25 class ChildProcessHostDelegate : public IPC::Listener { | 22 class ChildProcessHostDelegate : public IPC::Listener { |
| 26 public: | 23 public: |
| 27 ~ChildProcessHostDelegate() override {} | 24 ~ChildProcessHostDelegate() override {} |
| 28 | 25 |
| 29 // Delegates return true if it's ok to shut down the child process (which is | 26 // Delegates return true if it's ok to shut down the child process (which is |
| 30 // the default return value). The exception is if the host is in the middle of | 27 // the default return value). The exception is if the host is in the middle of |
| 31 // sending a request to the process, in which case the other side might think | 28 // sending a request to the process, in which case the other side might think |
| 32 // it's ok to shutdown, when really it's not. | 29 // it's ok to shutdown, when really it's not. |
| 33 CONTENT_EXPORT virtual bool CanShutdown(); | 30 CONTENT_EXPORT virtual bool CanShutdown(); |
| 34 | 31 |
| 35 // Called when the IPC channel for the child process is initialized. | 32 // Called when the IPC channel for the child process is initialized. |
| 36 virtual void OnChannelInitialized(IPC::Channel* channel) {} | 33 virtual void OnChannelInitialized(IPC::Channel* channel) {} |
| 37 | 34 |
| 38 // Called when the child process unexpected closes the IPC channel. Delegates | 35 // Called when the child process unexpected closes the IPC channel. Delegates |
| 39 // would normally delete the object in this case. | 36 // would normally delete the object in this case. |
| 40 virtual void OnChildDisconnected() {} | 37 virtual void OnChildDisconnected() {} |
| 41 | 38 |
| 42 // Returns a reference to the child process. This can be called only after | 39 // Returns a reference to the child process. This can be called only after |
| 43 // OnProcessLaunched is called or it will be invalid and may crash. | 40 // OnProcessLaunched is called or it will be invalid and may crash. |
| 44 virtual const base::Process& GetProcess() const = 0; | 41 virtual const base::Process& GetProcess() const = 0; |
| 45 | 42 |
| 46 // Returns the service_manager::InterfaceProvider the process host can use to | 43 // Binds an interface in the child process. |
| 47 // bind interfaces exposed to it from the child. | 44 virtual void BindInterface(const std::string& interface_name, |
| 48 CONTENT_EXPORT virtual service_manager::InterfaceProvider* | 45 mojo::ScopedMessagePipeHandle interface_pipe) {} |
| 49 GetRemoteInterfaces(); | |
| 50 }; | 46 }; |
| 51 | 47 |
| 52 }; // namespace content | 48 }; // namespace content |
| 53 | 49 |
| 54 #endif // CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_ | 50 #endif // CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_DELEGATE_H_ |
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