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// 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)
: PendingTask(posted_from, std::move(task), TimeTicks(), TimeTicks()) {}
PendingTask::PendingTask(const Location& posted_from,
OnceClosure task,
TimeTicks queue_time,
TimeTicks delayed_run_time)
: task(std::move(task)),
posted_from(posted_from),
queue_time(queue_time),
delayed_run_time(delayed_run_time) {}
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;
}
TimeTicks PendingTask::GetDesiredExecutionTime() const {
if (!delayed_run_time.is_null())
return delayed_run_time;
return queue_time;
}
} // namespace base
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