| // Copyright 2014 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 MOJO_SERVICE_MANAGER_BACKGROUND_SERVICE_LOADER_H_ |
| #define MOJO_SERVICE_MANAGER_BACKGROUND_SERVICE_LOADER_H_ |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/threading/thread.h" |
| #include "mojo/service_manager/service_loader.h" |
| |
| namespace mojo { |
| |
| class ServiceManager; |
| |
| // ServiceLoader implementation that creates a background thread and issues load |
| // requests there. |
| class MOJO_SERVICE_MANAGER_EXPORT BackgroundServiceLoader |
| : public ServiceLoader { |
| public: |
| BackgroundServiceLoader(scoped_ptr<ServiceLoader> real_loader, |
| const char* thread_name, |
| base::MessageLoop::Type message_loop_type); |
| virtual ~BackgroundServiceLoader(); |
| |
| // ServiceLoader overrides: |
| virtual void LoadService(ServiceManager* manager, |
| const GURL& url, |
| ScopedMessagePipeHandle service_handle) OVERRIDE; |
| virtual void OnServiceError(ServiceManager* manager, |
| const GURL& url) OVERRIDE; |
| |
| private: |
| class BackgroundLoader; |
| |
| // These functions are exected on the background thread. They call through |
| // to |background_loader_| to do the actual loading. |
| // TODO: having this code take a |manager| is fragile (as ServiceManager isn't |
| // thread safe). |
| void LoadServiceOnBackgroundThread( |
| ServiceManager* manager, |
| const GURL& url, |
| ScopedMessagePipeHandle* service_provider_handle); |
| void OnServiceErrorOnBackgroundThread(ServiceManager* manager, |
| const GURL& url); |
| void ShutdownOnBackgroundThread(); |
| |
| scoped_ptr<ServiceLoader> loader_; |
| base::Thread thread_; |
| base::MessageLoop::Type message_loop_type_; |
| |
| // Lives on |thread_|. Trivial interface that calls through to |loader_|. |
| BackgroundLoader* background_loader_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BackgroundServiceLoader); |
| }; |
| |
| } // namespace mojo |
| |
| #endif // MOJO_SERVICE_MANAGER_BACKGROUND_SERVICE_LOADER_H_ |