| // 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 CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DATABASE_TASK_MANAGER_H_ |
| #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DATABASE_TASK_MANAGER_H_ |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/threading/sequenced_worker_pool.h" |
| #include "content/common/content_export.h" |
| |
| namespace base { |
| class SequencedTaskRunner; |
| } |
| |
| namespace content { |
| |
| // Used to sequence ServiceWorkerDatabase tasks. Vends two task runners: one |
| // that blocks shutdown and one that doesn't. The task runners use the same |
| // sequence token, so no matter which runner you post to, the tasks run in the |
| // order they are posted. This lets you post sequenced tasks with mixed shutdown |
| // behaviors. |
| class ServiceWorkerDatabaseTaskManager { |
| public: |
| virtual ~ServiceWorkerDatabaseTaskManager() {} |
| virtual std::unique_ptr<ServiceWorkerDatabaseTaskManager> Clone() = 0; |
| virtual base::SequencedTaskRunner* GetTaskRunner() = 0; |
| virtual base::SequencedTaskRunner* GetShutdownBlockingTaskRunner() = 0; |
| }; |
| |
| class ServiceWorkerDatabaseTaskManagerImpl |
| : public ServiceWorkerDatabaseTaskManager { |
| public: |
| explicit ServiceWorkerDatabaseTaskManagerImpl( |
| base::SequencedWorkerPool* pool); |
| ~ServiceWorkerDatabaseTaskManagerImpl() override; |
| |
| protected: |
| std::unique_ptr<ServiceWorkerDatabaseTaskManager> Clone() override; |
| base::SequencedTaskRunner* GetTaskRunner() override; |
| base::SequencedTaskRunner* GetShutdownBlockingTaskRunner() override; |
| |
| private: |
| ServiceWorkerDatabaseTaskManagerImpl( |
| const scoped_refptr<base::SequencedTaskRunner>& task_runner, |
| const scoped_refptr<base::SequencedTaskRunner>& |
| shutdown_blocking_task_runner); |
| |
| scoped_refptr<base::SequencedTaskRunner> task_runner_; |
| scoped_refptr<base::SequencedTaskRunner> shutdown_blocking_task_runner_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDatabaseTaskManagerImpl); |
| }; |
| |
| // Dummy implementation for testing. It vends whatever you give it in the ctor. |
| class CONTENT_EXPORT MockServiceWorkerDatabaseTaskManager |
| : public NON_EXPORTED_BASE(ServiceWorkerDatabaseTaskManager) { |
| public: |
| explicit MockServiceWorkerDatabaseTaskManager( |
| const scoped_refptr<base::SequencedTaskRunner>& task_runner); |
| ~MockServiceWorkerDatabaseTaskManager() override; |
| |
| protected: |
| std::unique_ptr<ServiceWorkerDatabaseTaskManager> Clone() override; |
| base::SequencedTaskRunner* GetTaskRunner() override; |
| base::SequencedTaskRunner* GetShutdownBlockingTaskRunner() override; |
| |
| private: |
| scoped_refptr<base::SequencedTaskRunner> task_runner_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MockServiceWorkerDatabaseTaskManager); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DATABASE_TASK_MANAGER_H_ |