61 lines
2.1 KiB
C#
61 lines
2.1 KiB
C#
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/* ****************************************************************************
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*
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* Copyright (c) Microsoft Corporation.
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*
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* This source code is subject to terms and conditions of the Apache License, Version 2.0. A
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* copy of the license can be found in the License.html file at the root of this distribution. If
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* you cannot locate the Apache License, Version 2.0, please send an email to
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* vspython@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
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* by the terms of the Apache License, Version 2.0.
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*
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* You must not remove this notice, or any other, from this software.
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*
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* ***************************************************************************/
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using System;
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using System.Diagnostics;
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namespace Microsoft.VisualStudio {
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struct DebugTimer : IDisposable {
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#if DEBUG
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public static Stopwatch _timer = MakeStopwatch();
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private readonly long _start, _minReportTime;
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private readonly string _description;
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private static Stopwatch MakeStopwatch() {
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var res = new Stopwatch();
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res.Start();
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return res;
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}
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#endif
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/// <summary>
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/// Creates a new DebugTimer which logs timing information from when it's created
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/// to when it's disposed.
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/// </summary>
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/// <param name="description">The message which is logged in addition to the timing information</param>
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/// <param name="minReportTime">The minimum amount of time (in milliseconds) which needs to elapse for a message to be logged</param>
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public DebugTimer(string description, long minReportTime = 0) {
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#if DEBUG
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_start = _timer.ElapsedMilliseconds;
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_description = description;
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_minReportTime = minReportTime;
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#endif
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}
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#region IDisposable Members
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public void Dispose() {
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#if DEBUG
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var elapsed = _timer.ElapsedMilliseconds - _start;
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if (elapsed >= _minReportTime) {
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Debug.WriteLine(String.Format("{0}: {1}ms elapsed", _description, elapsed));
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}
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#endif
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}
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#endregion
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}
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}
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