| // Copyright 2012 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef REMOTING_HOST_CHROMOTING_HOST_CONTEXT_H_ |
| #define REMOTING_HOST_CHROMOTING_HOST_CONTEXT_H_ |
| |
| #include <memory> |
| |
| #include "base/memory/scoped_refptr.h" |
| #include "build/build_config.h" |
| #include "build/chromeos_buildflags.h" |
| #include "components/policy/core/common/management/platform_management_service.h" |
| |
| namespace base { |
| class SingleThreadTaskRunner; |
| } // namespace base |
| |
| namespace net { |
| class URLRequestContextGetter; |
| } // namespace net |
| |
| namespace network { |
| class SharedURLLoaderFactory; |
| } // namespace network |
| |
| namespace remoting { |
| |
| class AutoThreadTaskRunner; |
| |
| // A class that manages threads and running context for the chromoting host |
| // process. This class is virtual to allow for platform specialization and |
| // testing purposes. |
| class ChromotingHostContext { |
| public: |
| #if BUILDFLAG(IS_CHROMEOS_ASH) |
| // Attaches task runners to the relevant browser threads for the chromoting |
| // host. Must be called on the UI thread of the browser process. |
| static std::unique_ptr<ChromotingHostContext> CreateForChromeOS( |
| scoped_refptr<base::SingleThreadTaskRunner> io_task_runner, |
| scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner, |
| scoped_refptr<base::SingleThreadTaskRunner> file_task_runner, |
| scoped_refptr<network::SharedURLLoaderFactory> shared_url_loader_factory); |
| #else |
| // Create threads and URLRequestContextGetter for use by a host. |
| // During shutdown the caller should tear-down the ChromotingHostContext and |
| // then continue to run until |ui_task_runner| is no longer referenced. |
| // nullptr is returned if any threads fail to start. |
| static std::unique_ptr<ChromotingHostContext> Create( |
| scoped_refptr<AutoThreadTaskRunner> ui_task_runner); |
| #endif // BUILDFLAG(IS_CHROMEOS_ASH) |
| static std::unique_ptr<ChromotingHostContext> CreateForTesting( |
| scoped_refptr<AutoThreadTaskRunner> ui_task_runner, |
| scoped_refptr<network::SharedURLLoaderFactory> shared_url_loader_factory); |
| |
| ChromotingHostContext(const ChromotingHostContext&) = delete; |
| ChromotingHostContext& operator=(const ChromotingHostContext&) = delete; |
| |
| virtual ~ChromotingHostContext(); |
| |
| // Per-platform classes must implement these methods. |
| virtual std::unique_ptr<ChromotingHostContext> Copy() = 0; |
| virtual scoped_refptr<net::URLRequestContextGetter> |
| url_request_context_getter() const = 0; |
| virtual scoped_refptr<network::SharedURLLoaderFactory> |
| url_loader_factory() = 0; |
| |
| // Task runner for the thread that is used for the UI. |
| scoped_refptr<AutoThreadTaskRunner> ui_task_runner() const; |
| |
| // Task runner for the thread used for audio capture and encoding. |
| scoped_refptr<AutoThreadTaskRunner> audio_task_runner() const; |
| |
| // Task runner for the thread that is used for blocking file |
| // IO. This thread is used by the URLRequestContext to read proxy |
| // configuration and by NatConfig to read policy configs. |
| scoped_refptr<AutoThreadTaskRunner> file_task_runner() const; |
| |
| // Task runner for the thread that is used by the InputInjector. |
| // |
| // TODO(sergeyu): Do we need a separate thread for InputInjector? |
| // Can we use some other thread instead? |
| scoped_refptr<AutoThreadTaskRunner> input_task_runner() const; |
| |
| // Task runner for the thread used for network IO. This thread runs |
| // a libjingle message loop, and is the only thread on which |
| // libjingle code may be run. |
| scoped_refptr<AutoThreadTaskRunner> network_task_runner() const; |
| |
| // Task runner for the thread used by the ScreenRecorder to capture |
| // the screen. |
| scoped_refptr<AutoThreadTaskRunner> video_capture_task_runner() const; |
| |
| // Task runner for the thread used to encode video streams. |
| scoped_refptr<AutoThreadTaskRunner> video_encode_task_runner() const; |
| |
| policy::ManagementService* management_service(); |
| |
| protected: |
| ChromotingHostContext( |
| scoped_refptr<AutoThreadTaskRunner> ui_task_runner, |
| scoped_refptr<AutoThreadTaskRunner> audio_task_runner, |
| scoped_refptr<AutoThreadTaskRunner> file_task_runner, |
| scoped_refptr<AutoThreadTaskRunner> input_task_runner, |
| scoped_refptr<AutoThreadTaskRunner> network_task_runner, |
| scoped_refptr<AutoThreadTaskRunner> video_capture_task_runner, |
| scoped_refptr<AutoThreadTaskRunner> video_encode_task_runner); |
| |
| private: |
| // Caller-supplied UI thread. This is usually the application main thread. |
| scoped_refptr<AutoThreadTaskRunner> ui_task_runner_; |
| |
| // Thread for audio capture and encoding. |
| scoped_refptr<AutoThreadTaskRunner> audio_task_runner_; |
| |
| // Thread for I/O operations. |
| scoped_refptr<AutoThreadTaskRunner> file_task_runner_; |
| |
| // Thread for input injection. |
| scoped_refptr<AutoThreadTaskRunner> input_task_runner_; |
| |
| // Thread for network operations. |
| scoped_refptr<AutoThreadTaskRunner> network_task_runner_; |
| |
| // Thread for screen capture. |
| scoped_refptr<AutoThreadTaskRunner> video_capture_task_runner_; |
| |
| // Thread for video encoding. |
| scoped_refptr<AutoThreadTaskRunner> video_encode_task_runner_; |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_HOST_CHROMOTING_HOST_CONTEXT_H_ |