| // Copyright 2015 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 THIRD_PARTY_BLINK_PUBLIC_PLATFORM_SCHEDULER_WEB_THREAD_SCHEDULER_H_ |
| #define THIRD_PARTY_BLINK_PUBLIC_PLATFORM_SCHEDULER_WEB_THREAD_SCHEDULER_H_ |
| |
| #include "base/macros.h" |
| #include "base/single_thread_task_runner.h" |
| #include "third_party/blink/public/platform/scheduler/single_thread_idle_task_runner.h" |
| #include "third_party/blink/public/platform/web_common.h" |
| |
| namespace blink { |
| namespace scheduler { |
| |
| class BLINK_PLATFORM_EXPORT WebThreadScheduler { |
| public: |
| virtual ~WebThreadScheduler() = default; |
| |
| // Returns the default task runner. |
| virtual scoped_refptr<base::SingleThreadTaskRunner> DefaultTaskRunner() = 0; |
| |
| // Returns the idle task runner. Tasks posted to this runner may be reordered |
| // relative to other task types and may be starved for an arbitrarily long |
| // time if no idle time is available. |
| virtual scoped_refptr<SingleThreadIdleTaskRunner> IdleTaskRunner() = 0; |
| |
| virtual scoped_refptr<base::SingleThreadTaskRunner> IPCTaskRunner() = 0; |
| |
| // Shuts down the scheduler by dropping any remaining pending work in the work |
| // queues. After this call any work posted to the task runners will be |
| // silently dropped. |
| virtual void Shutdown() = 0; |
| |
| protected: |
| WebThreadScheduler() = default; |
| DISALLOW_COPY_AND_ASSIGN(WebThreadScheduler); |
| }; |
| |
| } // namespace scheduler |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_PUBLIC_PLATFORM_SCHEDULER_WEB_THREAD_SCHEDULER_H_ |