A game about forced loneliness, made by TACStudios
tacstudios.tngl.sh
1using System;
2using System.Diagnostics;
3using System.Diagnostics.CodeAnalysis;
4using System.Threading;
5using Unity.Collections.LowLevel.Unsafe;
6
7namespace UnityEditor.Rendering
8{
9 /// <summary>
10 /// Allows time measurements
11 /// </summary>
12 /// <example>
13 /// double duration = 0;
14 /// using (TimedScope.FromPtr(&duration))
15 /// {
16 /// // something to get the time
17 /// }
18 /// Debug.Log($"Duration: {duration}")
19 /// </example>
20 public unsafe struct TimedScope : IDisposable
21 {
22 static readonly ThreadLocal<Stopwatch> s_StopWatch = new ThreadLocal<Stopwatch>(() => new Stopwatch());
23
24 double* m_DurationMsPtr;
25
26 TimedScope(double* durationMsPtr)
27 {
28 m_DurationMsPtr = durationMsPtr;
29 s_StopWatch.Value.Start();
30 }
31
32 /// <summary>
33 /// Dispose method to retrieve the time
34 /// </summary>
35 void IDisposable.Dispose()
36 {
37 s_StopWatch.Value.Stop();
38 *m_DurationMsPtr = s_StopWatch.Value.Elapsed.TotalMilliseconds;
39 s_StopWatch.Value.Reset();
40 }
41
42 /// <summary>
43 /// Obtains a <see cref="TimedScope"/>.
44 ///
45 /// Safety: <paramref name="durationMsPtr"/> must be a non-null pointer to a valid memory location for a double.
46 /// </summary>
47 /// <param name="durationMsPtr">The location to write the duration in milliseconds to.</param>
48 /// <returns>A <see cref="TimedScope"/></returns>
49 public static unsafe TimedScope FromPtr([DisallowNull] double* durationMsPtr)
50 {
51 return new TimedScope(durationMsPtr);
52 }
53
54 /// <summary>
55 /// Obtains a <see cref="TimedScope"/>
56 /// </summary>
57 /// <param name="durationMs">The location to write the duration in milliseconds to.</param>
58 /// <returns>A <see cref="TimedScope"/></returns>
59 public static TimedScope FromRef(ref double durationMs)
60 {
61 return new TimedScope((double*)UnsafeUtility.AddressOf(ref durationMs));
62 }
63 }
64}