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base / task / scoped_set_task_priority_for_current_thread.h [blame]
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_TASK_SCOPED_SET_TASK_PRIORITY_FOR_CURRENT_THREAD_H_
#define BASE_TASK_SCOPED_SET_TASK_PRIORITY_FOR_CURRENT_THREAD_H_
#include "base/auto_reset.h"
#include "base/base_export.h"
#include "base/task/task_traits.h"
namespace base {
namespace internal {
class BASE_EXPORT
[[maybe_unused, nodiscard]] ScopedSetTaskPriorityForCurrentThread {
public:
// Within the scope of this object, GetTaskPriorityForCurrentThread() will
// return |priority|.
explicit ScopedSetTaskPriorityForCurrentThread(TaskPriority priority);
ScopedSetTaskPriorityForCurrentThread(
const ScopedSetTaskPriorityForCurrentThread&) = delete;
ScopedSetTaskPriorityForCurrentThread& operator=(
const ScopedSetTaskPriorityForCurrentThread&) = delete;
~ScopedSetTaskPriorityForCurrentThread();
private:
const AutoReset<TaskPriority> resetter_;
};
// Returns the priority of the task running on the current thread,
// or TaskPriority::USER_BLOCKING by default if none.
BASE_EXPORT TaskPriority GetTaskPriorityForCurrentThread();
} // namespace internal
} // namespace base
#endif // BASE_TASK_SCOPED_SET_TASK_PRIORITY_FOR_CURRENT_THREAD_H_