54 lines
1.5 KiB
C#
54 lines
1.5 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2020 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System.Diagnostics;
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using OpenRA.Activities;
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using OpenRA.Support;
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namespace OpenRA.Traits
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{
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public static class ActivityUtils
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{
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public static Activity RunActivity(Actor self, Activity act)
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{
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// PERF: If there are no activities we can bail straight away and save ourselves a call to
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// Stopwatch.GetTimestamp.
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if (act == null)
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return act;
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// PERF: This is a hot path and must run with minimal added overhead.
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// Calling Stopwatch.GetTimestamp is a bit expensive, so we enumerate manually to allow us to call it only
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// once per iteration in the normal case.
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// See also: DoTimed
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var longTickThresholdInStopwatchTicks = PerfTimer.LongTickThresholdInStopwatchTicks;
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var start = Stopwatch.GetTimestamp();
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while (act != null)
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{
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var prev = act;
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act = act.TickOuter(self);
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var current = Stopwatch.GetTimestamp();
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if (current - start > longTickThresholdInStopwatchTicks)
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{
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PerfTimer.LogLongTick(start, current, "Activity", prev);
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start = Stopwatch.GetTimestamp();
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}
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else
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start = current;
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if (act == prev)
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break;
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}
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return act;
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}
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}
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}
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