JD2022-TU1/main/tools/framework/JD.Statistics/TimerMetric.cs

129 lines
2.6 KiB
C#

using System;
using System.Diagnostics;
using System.Threading;
using JD.Kernel.Classes;
using JD.Kernel.StaticHelpers;
namespace JD.Statistics
{
public sealed class TimerMetric : IDisposable, IComparable<TimerMetric>, IComparable
{
#region Variables
private long m_ticks;
private readonly Stopwatch _stopwatch;
private int m_timerRunningCount;
private bool m_hasStarted = true;
#endregion
#region Constructor/Destructor
public TimerMetric()
: this(true, null)
{ }
public TimerMetric(bool autoStart)
: this(autoStart, null)
{ }
public TimerMetric(bool autoStart, Stopwatch timer)
{
_stopwatch = timer ?? new Stopwatch();
if (autoStart)
{
SafeStart(_stopwatch);
}
}
public void Dispose()
{
Stop(_stopwatch);
}
#endregion
#region Properties
public TimeSpan Time
{
get
{
return new TimeSpan(m_ticks);
}
}
#endregion
#region Methods
public IDisposable SafeStart()
{
var timer = new Stopwatch();
return SafeStart(timer);
}
internal IDisposable SafeStart(Stopwatch timer)
{
Interlocked.Increment(ref m_timerRunningCount);
timer.Start();
m_hasStarted = true;
return new DisposableHelper(() => Stop(timer));
}
private void Stop(Stopwatch timer)
{
if (timer.IsRunning)
{
timer.Stop();
Interlocked.Decrement(ref m_timerRunningCount);
Add(timer.Elapsed);
}
}
public int CompareTo(object obj)
{
TimerMetric metric = obj as TimerMetric;
if (metric != null)
{
return CompareTo(metric);
}
return 0;
}
public int CompareTo(TimerMetric metric)
{
return Time.CompareTo(metric.Time);
}
/// <summary>
/// Adds time to the metric.
/// </summary>
public void Add(TimeSpan time)
{
m_hasStarted = true;
InterlockedEx.Add(ref m_ticks, time.Ticks);
}
public override string ToString()
{
if (!m_hasStarted)
{
return "-";
}
return $"{(int) Time.TotalMilliseconds} ms";
}
#endregion
}
}