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42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/pending_task.h"
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namespace base {
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PendingTask::PendingTask(const Location& posted_from,
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OnceClosure task,
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TimeTicks delayed_run_time,
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Nestable nestable)
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: task(std::move(task)),
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posted_from(posted_from),
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delayed_run_time(delayed_run_time),
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nestable(nestable) {}
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PendingTask::PendingTask(PendingTask&& other) = default;
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PendingTask::~PendingTask() = default;
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PendingTask& PendingTask::operator=(PendingTask&& other) = default;
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bool PendingTask::operator<(const PendingTask& other) const {
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// Since the top of a priority queue is defined as the "greatest" element, we
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// need to invert the comparison here. We want the smaller time to be at the
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// top of the heap.
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if (delayed_run_time < other.delayed_run_time)
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return false;
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if (delayed_run_time > other.delayed_run_time)
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return true;
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// If the times happen to match, then we use the sequence number to decide.
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// Compare the difference to support integer roll-over.
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return (sequence_num - other.sequence_num) > 0;
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}
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} // namespace base
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