summaryrefslogtreecommitdiff
path: root/chromium/base/pending_task.cc
blob: 82ac835da4eab8f19fdfbf25765354ecd7c3ad74 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
// Copyright (c) 2011 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.

#include "base/pending_task.h"


namespace base {

PendingTask::PendingTask() = default;

PendingTask::PendingTask(const Location& posted_from,
                         OnceClosure task,
                         TimeTicks delayed_run_time,
                         Nestable nestable)
    : task(std::move(task)),
      posted_from(posted_from),
      delayed_run_time(delayed_run_time),
      nestable(nestable) {}

PendingTask::PendingTask(PendingTask&& other) = default;

PendingTask::~PendingTask() = default;

PendingTask& PendingTask::operator=(PendingTask&& other) = default;

bool PendingTask::operator<(const PendingTask& other) const {
  // Since the top of a priority queue is defined as the "greatest" element, we
  // need to invert the comparison here.  We want the smaller time to be at the
  // top of the heap.

  if (delayed_run_time < other.delayed_run_time)
    return false;

  if (delayed_run_time > other.delayed_run_time)
    return true;

  // If the times happen to match, then we use the sequence number to decide.
  // Compare the difference to support integer roll-over.
  return (sequence_num - other.sequence_num) > 0;
}

}  // namespace base