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// Copyright 2018 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 BASE_TASK_TASK_SCHEDULER_SCHEDULER_WORKER_OBSERVER_H_
#define BASE_TASK_TASK_SCHEDULER_SCHEDULER_WORKER_OBSERVER_H_
namespace base {
// Interface to observe entry and exit of the main function of a TaskScheduler
// worker.
class SchedulerWorkerObserver {
public:
virtual ~SchedulerWorkerObserver() = default;
// Invoked at the beginning of the main function of a TaskScheduler worker,
// before any task runs.
virtual void OnSchedulerWorkerMainEntry() = 0;
// Invoked at the end of the main function of a TaskScheduler worker, when it
// can no longer run tasks.
virtual void OnSchedulerWorkerMainExit() = 0;
};
} // namespace base
#endif // BASE_TASK_TASK_SCHEDULER_SCHEDULER_WORKER_OBSERVER_H_