scoped_defer_task_posting.h | Explore in Territory

// Copyright 2019 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_COMMON_SCOPED_DEFER_TASK_POSTING_H_
#define BASE_TASK_COMMON_SCOPED_DEFER_TASK_POSTING_H_

#include <vector>

#include "base/base_export.h"
#include "base/location.h"
#include "base/task/sequenced_task_runner.h"
#include "base/time/time.h"

namespace base {

// Tracing wants to post tasks from within a trace event within PostTask, but
// this can lead to a deadlock. Create a scope to ensure that we are posting
// the tasks in question outside of the scope of the lock.
// NOTE: This scope affects only the thread it is created on. All other threads
// still can post tasks.
//
// TODO(altimin): It should be possible to get rid of this scope, but this
// requires refactoring TimeDomain to ensure that TimeDomain never changes and
// we can read current time without grabbing a lock.
class BASE_EXPORT [[maybe_unused, nodiscard]] ScopedDeferTaskPosting { … };

}  // namespace base

#endif  // BASE_TASK_COMMON_SCOPED_DEFER_TASK_POSTING_H_
chromium/base/task/common/scoped_defer_task_posting.h
