delayed_task.h

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// Copyright 2013 The Flutter 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 FLUTTER_FML_DELAYED_TASK_H_
#define FLUTTER_FML_DELAYED_TASK_H_
 
#include <queue>
 
#include "flutter/fml/closure.h"
#include "flutter/fml/task_source_grade.h"
#include "flutter/fml/time/time_point.h"
 
namespace fml {
 
class DelayedTask {
 public:
  DelayedTask(size_t order,
              const fml::closure& task,
              fml::TimePoint target_time,
              fml::TaskSourceGrade task_source_grade);
 
  DelayedTask(const DelayedTask& other);
 
  ~DelayedTask();
 
  const fml::closure& GetTask() const;
 
  fml::TimePoint GetTargetTime() const;
 
  fml::TaskSourceGrade GetTaskSourceGrade() const;
 
  bool operator>(const DelayedTask& other) const;
 
 private:
  size_t order_;
  fml::closure task_;
  fml::TimePoint target_time_;
  fml::TaskSourceGrade task_source_grade_;
};
 
using DelayedTaskQueue = std::priority_queue<DelayedTask,
                                             std::deque<DelayedTask>,
                                             std::greater<DelayedTask>>;
 
}  // namespace fml
 
#endif  // FLUTTER_FML_DELAYED_TASK_H_