Refactor unsafe collections and benchmarks

Changed the `CollectionBenchmark` class to use unsafe code for improved memory operations and added benchmarks for stack-allocated arrays.
Changed the `ParallelNoiseBenchmark` class to remove the internal `NoiseJob` struct, promoting better organization.
Changed the `AllocationManager` class to remove the lock mechanism for thread safety and simplified the `Reset` method.
Changed the `Arena` and `DynamicArena` structs to include `Initialize` methods for better initialization control.
Changed the `UnsafeArray<T>`, `UnsafeHashSet<T>`, and `UnsafeList<T>` structs to improve element access and management.
Updated the `UnsafeCollectionExtensions` class to enhance usability with new methods for copying and converting collections.
Updated the `MemoryLeakException` class to provide more detailed stack trace information for better debugging.
Removed the usage of `UnsafeHashMap` in `Program.cs` and directly ran the `CollectionBenchmark`.
Added a new `NoiseJob` struct in `NoiseJob.cs` for generating gradient noise using `UnsafeArray<float>`.
Fixed minor typos and improved method signatures throughout the codebase for clarity.
This commit is contained in:
2025-04-11 15:53:11 +09:00
parent 463735a481
commit 691a336111
13 changed files with 217 additions and 160 deletions

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@@ -5,28 +5,45 @@ using Misaki.HighPerformance.Unsafe.Collections;
namespace Misaki.HighPerformance.Test; namespace Misaki.HighPerformance.Test;
[MemoryDiagnoser] [MemoryDiagnoser]
public class CollectionBenchmark public unsafe class CollectionBenchmark
{ {
[Params(10, 100, 1000)] [Params(10, 100, 1000)]
public int count = 100; public int count;
[GlobalSetup] [GlobalSetup]
public void Setup() public void Setup()
{ {
AllocationManager.Initialize(512_000); AllocationManager.Initialize();
} }
[Benchmark] [Benchmark]
public void Array() public void Array()
{ {
var array = new int[count]; var array = new int[count];
for (var i = 0; i < count; i++)
{
array[i] = i;
}
} }
[Benchmark] [Benchmark(Baseline = true)]
public void UnsafeArray() public void UnsafeArray()
{ {
var array = new UnsafeArray<int>(count, Allocator.Temp); var array = new UnsafeArray<int>(count, Allocator.Temp);
AllocationManager.Reset(); for (var i = 0; i < count; i++)
{
array[i] = i;
}
}
[Benchmark]
public void StackArray()
{
var array = stackalloc int[count];
for (var i = 0; i < count; i++)
{
array[i] = i;
}
} }
[GlobalCleanup] [GlobalCleanup]

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@@ -0,0 +1,50 @@
using Misaki.HighPerformance.Jobs;
using Misaki.HighPerformance.Unsafe.Collections;
using System.Numerics;
using System.Runtime.CompilerServices;
namespace Misaki.HighPerformance.Test.Jobs;
internal struct NoiseJob : IJobParallelFor
{
public UnsafeArray<float> buffers;
public int width;
public int height;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static float Frac(float x)
{
return x - MathF.Truncate(x);
}
private static Vector2 GradientNoiseDirect(Vector2 uv)
{
uv.X %= 289;
uv.Y %= 289;
var x = (34 * uv.X + 1) * uv.X % 289 + uv.Y;
x = (34 * x + 1) * x % 289;
x = Frac(x / 41) * 2 - 1;
return Vector2.Normalize(new Vector2(x - MathF.Floor(x + 0.5f), MathF.Abs(x) - 0.5f));
}
public static float GradientNoise(Vector2 uv)
{
var ip = new Vector2(MathF.Floor(uv.X), MathF.Floor(uv.Y));
var fp = new Vector2(Frac(uv.X), Frac(uv.Y));
var d00 = Vector2.Dot(GradientNoiseDirect(ip), fp);
var d01 = Vector2.Dot(GradientNoiseDirect(ip + new Vector2(0, 1)), fp - new Vector2(0, 1));
var d10 = Vector2.Dot(GradientNoiseDirect(ip + new Vector2(1, 0)), fp - new Vector2(1, 0));
var d11 = Vector2.Dot(GradientNoiseDirect(ip + new Vector2(1, 1)), fp - new Vector2(1, 1));
fp = fp * fp * fp * (fp * (fp * new Vector2(6.0f) - new Vector2(15.0f)) + new Vector2(10.0f));
return float.Lerp(float.Lerp(d00, d10, fp.Y), float.Lerp(d01, d11, fp.Y), fp.X);
}
public void Execute(int index)
{
var x = index % width;
var y = index / height;
var uv = new Vector2(x, y);
buffers[index] = GradientNoise(uv);
}
}

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@@ -1,59 +1,14 @@
using BenchmarkDotNet.Attributes; using BenchmarkDotNet.Attributes;
using Misaki.HighPerformance.Jobs; using Misaki.HighPerformance.Jobs;
using Misaki.HighPerformance.Test.Jobs;
using Misaki.HighPerformance.Unsafe.Collections; using Misaki.HighPerformance.Unsafe.Collections;
using System.Numerics; using System.Numerics;
using System.Runtime.CompilerServices;
namespace Misaki.HighPerformance.Test; namespace Misaki.HighPerformance.Test;
[MemoryDiagnoser] [MemoryDiagnoser]
public class ParallelNoiseBenchmark public class ParallelNoiseBenchmark
{ {
private struct NoiseJob : IJobParallelFor
{
public UnsafeArray<float> buffers;
public int width;
public int height;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static float Frac(float x)
{
return x - MathF.Truncate(x);
}
private static Vector2 GradientNoiseDirect(Vector2 uv)
{
uv.X %= 289;
uv.Y %= 289;
var x = (34 * uv.X + 1) * uv.X % 289 + uv.Y;
x = (34 * x + 1) * x % 289;
x = Frac(x / 41) * 2 - 1;
return Vector2.Normalize(new Vector2(x - MathF.Floor(x + 0.5f), MathF.Abs(x) - 0.5f));
}
public static float GradientNoise(Vector2 uv)
{
var ip = new Vector2(MathF.Floor(uv.X), MathF.Floor(uv.Y));
var fp = new Vector2(Frac(uv.X), Frac(uv.Y));
var d00 = Vector2.Dot(GradientNoiseDirect(ip), fp);
var d01 = Vector2.Dot(GradientNoiseDirect(ip + new Vector2(0, 1)), fp - new Vector2(0, 1));
var d10 = Vector2.Dot(GradientNoiseDirect(ip + new Vector2(1, 0)), fp - new Vector2(1, 0));
var d11 = Vector2.Dot(GradientNoiseDirect(ip + new Vector2(1, 1)), fp - new Vector2(1, 1));
fp = fp * fp * fp * (fp * (fp * new Vector2(6.0f) - new Vector2(15.0f)) + new Vector2(10.0f));
return float.Lerp(float.Lerp(d00, d10, fp.Y), float.Lerp(d01, d11, fp.Y), fp.X);
}
public void Execute(int index)
{
var x = index % width;
var y = index / height;
var uv = new Vector2(x, y);
buffers[index] = GradientNoise(uv);
}
}
private const int _WIDTH = 512; private const int _WIDTH = 512;
private const int _HEIGHT = 512; private const int _HEIGHT = 512;
private const int _LENGTH = _WIDTH * _HEIGHT; private const int _LENGTH = _WIDTH * _HEIGHT;

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@@ -1,10 +1,4 @@
using Misaki.HighPerformance.Unsafe.Collections; using BenchmarkDotNet.Running;
using Misaki.HighPerformance.Unsafe.Helpers; using Misaki.HighPerformance.Test;
using System.Numerics;
unsafe BenchmarkRunner.Run<CollectionBenchmark>();
{
Console.WriteLine(sizeof(UnsafeHashMap<int, float>));
Console.WriteLine(MemoryUtilities.AlignOf<UnsafeHashMap<int, float>>());
Console.WriteLine(1 << Math.Min(3, BitOperations.TrailingZeroCount(sizeof(UnsafeHashMap<int, float>))));
}

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@@ -1,4 +1,4 @@
#define UNSAFE_COLLECTION_CHECK //#define UNSAFE_COLLECTION_CHECK
using Misaki.HighPerformance.Unsafe.Collections; using Misaki.HighPerformance.Unsafe.Collections;
#if UNSAFE_COLLECTION_CHECK #if UNSAFE_COLLECTION_CHECK
@@ -21,7 +21,7 @@ public static unsafe class AllocationManager
private static Dictionary<IntPtr, MemoryLeakExceptionInfo> _allocated = null!; private static Dictionary<IntPtr, MemoryLeakExceptionInfo> _allocated = null!;
#endif #endif
private static readonly Lock _lock = new(); //private static readonly Lock _lock = new();
/// <summary> /// <summary>
/// Initializes the AllocationManager with a specified initial size for the memory arena. /// Initializes the AllocationManager with a specified initial size for the memory arena.
@@ -42,7 +42,7 @@ public static unsafe class AllocationManager
_initialized = true; _initialized = true;
} }
internal static T* Allocate<T>(uint size, uint alignSize, Allocator allocator, AllocationOption allocationOption) public static T* Allocate<T>(uint size, uint alignSize, Allocator allocator, AllocationOption allocationOption)
where T : unmanaged where T : unmanaged
{ {
if (allocationOption.HasFlag(AllocationOption.UnTracked)) if (allocationOption.HasFlag(AllocationOption.UnTracked))
@@ -55,8 +55,8 @@ public static unsafe class AllocationManager
Initialize(); Initialize();
} }
lock (_lock) //lock (_lock)
{ //{
T* buffer; T* buffer;
switch (allocator) switch (allocator)
{ {
@@ -90,10 +90,10 @@ public static unsafe class AllocationManager
} }
return buffer; return buffer;
} //}
} }
internal static T* Realloc<T>(T* buffer, uint size, uint alignSize, Allocator allocator) public static T* Realloc<T>(T* buffer, uint size, uint alignSize, Allocator allocator)
where T : unmanaged where T : unmanaged
{ {
if (!_initialized) if (!_initialized)
@@ -101,8 +101,8 @@ public static unsafe class AllocationManager
throw new InvalidOperationException("The AllocationManager has not been initialized."); throw new InvalidOperationException("The AllocationManager has not been initialized.");
} }
lock (_lock) //lock (_lock)
{ //{
T* newBuffer; T* newBuffer;
switch (allocator) switch (allocator)
{ {
@@ -134,13 +134,13 @@ public static unsafe class AllocationManager
} }
return newBuffer; return newBuffer;
} //}
} }
internal static void Free(void* ptr, Allocator allocator) public static void Free(void* ptr, Allocator allocator)
{
lock (_lock)
{ {
//lock (_lock)
//{
if (allocator == Allocator.Persistent) if (allocator == Allocator.Persistent)
{ {
AlignedFree(ptr); AlignedFree(ptr);
@@ -148,21 +148,15 @@ public static unsafe class AllocationManager
_allocated.Remove((IntPtr)ptr); _allocated.Remove((IntPtr)ptr);
#endif #endif
} }
} //}
} }
/// <summary> /// <summary>
/// Resets the memory arena, optionally clearing the allocated memory. /// Resets the memory arena, optionally clearing the allocated memory.
/// </summary> /// </summary>
/// <param name="clear">If true, the allocated memory will be cleared; otherwise, it will not be cleared.</param> public static void Reset()
public static void Reset(bool clear = false)
{ {
if (!_initialized) _arena.Reset();
{
throw new InvalidOperationException("The AllocationManager has not been initialized.");
}
_arena.Reset(clear);
} }
/// <summary> /// <summary>

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@@ -15,6 +15,16 @@ public unsafe struct Arena : IDisposable
public Arena(uint size) public Arena(uint size)
{ {
Initialize(size);
}
public void Initialize(uint size)
{
if (_buffer != null)
{
return;
}
_buffer = (byte*)Malloc(size); _buffer = (byte*)Malloc(size);
_size = size; _size = size;
_offset = 0; _offset = 0;
@@ -32,7 +42,10 @@ public unsafe struct Arena : IDisposable
/// <exception cref="ObjectDisposedException">Thrown if the arena has been disposed.</exception> /// <exception cref="ObjectDisposedException">Thrown if the arena has been disposed.</exception>
public void* Allocate(uint size, uint alignSize, AllocationOption allocationOption) public void* Allocate(uint size, uint alignSize, AllocationOption allocationOption)
{ {
ObjectDisposedException.ThrowIf(_disposed, this); if (_disposed)
{
throw new ObjectDisposedException(nameof(DynamicArena));
}
var offset = (_offset + alignSize - 1) & ~(alignSize - 1); var offset = (_offset + alignSize - 1) & ~(alignSize - 1);
if (offset + size > _size) if (offset + size > _size)
@@ -56,13 +69,11 @@ public unsafe struct Arena : IDisposable
/// </summary> /// </summary>
/// <param name="clear">If true, the allocated memory will be cleared; otherwise, it will not be cleared.</param> /// <param name="clear">If true, the allocated memory will be cleared; otherwise, it will not be cleared.</param>
/// <exception cref="ObjectDisposedException">Thrown if the arena has been disposed.</exception> /// <exception cref="ObjectDisposedException">Thrown if the arena has been disposed.</exception>
public void Reset(bool clear = false) public void Reset()
{ {
ObjectDisposedException.ThrowIf(_disposed, this); if (_disposed)
if (clear)
{ {
MemClear(_buffer, _size); throw new ObjectDisposedException(nameof(DynamicArena));
} }
_offset = 0; _offset = 0;

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@@ -16,8 +16,7 @@ public unsafe struct DynamicArena : IDisposable
private ArenaNode* _root; private ArenaNode* _root;
private ArenaNode* _current; private ArenaNode* _current;
private readonly uint _initialSize; private uint _initialSize;
private bool _disposed;
/// <summary> /// <summary>
/// Initializes a new instance of DynamicArena with the specified initial size. /// Initializes a new instance of DynamicArena with the specified initial size.
@@ -32,11 +31,25 @@ public unsafe struct DynamicArena : IDisposable
_current = _root; _current = _root;
} }
public void Initialize(uint initialSize)
{
if (_root != null)
{
return;
}
_initialSize = initialSize;
_root = (ArenaNode*)Malloc(SizeOf<ArenaNode>());
_root->arena = new Arena(initialSize);
_root->next = null;
_current = _root;
}
private bool CreateNewNode(uint size) private bool CreateNewNode(uint size)
{ {
var newNode = (ArenaNode*)Malloc(SizeOf<ArenaNode>());
try try
{ {
var newNode = (ArenaNode*)Malloc(SizeOf<ArenaNode>());
newNode->arena = new Arena(size); newNode->arena = new Arena(size);
newNode->next = null; newNode->next = null;
@@ -46,6 +59,7 @@ public unsafe struct DynamicArena : IDisposable
} }
catch catch
{ {
Free(newNode);
return false; return false;
} }
} }
@@ -59,7 +73,10 @@ public unsafe struct DynamicArena : IDisposable
/// <exception cref="ObjectDisposedException">Thrown if the arena has been disposed.</exception> /// <exception cref="ObjectDisposedException">Thrown if the arena has been disposed.</exception>
public void* Allocate(uint size, uint alignSize, AllocationOption allocationType) public void* Allocate(uint size, uint alignSize, AllocationOption allocationType)
{ {
ObjectDisposedException.ThrowIf(_disposed, this); if (_root == null)
{
return null;
}
void* result = null; void* result = null;
var current = _current; var current = _current;
@@ -89,14 +106,12 @@ public unsafe struct DynamicArena : IDisposable
/// </summary> /// </summary>
/// <param name="clear">If true, memory will be cleared during reset.</param> /// <param name="clear">If true, memory will be cleared during reset.</param>
/// <exception cref="ObjectDisposedException">Thrown if the arena has been disposed.</exception> /// <exception cref="ObjectDisposedException">Thrown if the arena has been disposed.</exception>
public void Reset(bool clear = false) public void Reset()
{ {
ObjectDisposedException.ThrowIf(_disposed, this);
var current = _root; var current = _root;
while (current != null) while (current != null)
{ {
current->arena.Reset(clear); current->arena.Reset();
current = current->next; current = current->next;
} }
@@ -108,7 +123,7 @@ public unsafe struct DynamicArena : IDisposable
/// </summary> /// </summary>
public void Dispose() public void Dispose()
{ {
if (_disposed) if (_root == null)
{ {
return; return;
} }
@@ -124,6 +139,5 @@ public unsafe struct DynamicArena : IDisposable
_root = null; _root = null;
_current = null; _current = null;
_disposed = true;
} }
} }

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@@ -73,7 +73,7 @@ public unsafe struct UnsafeArray<T> : IUnsafeCollection<T>
public readonly ref T this[int index] public readonly ref T this[int index]
{ {
[MethodImpl(MethodImplOptions.AggressiveInlining)] [MethodImpl(MethodImplOptions.AggressiveInlining)]
get => ref UnsafeUtilities.ReadArrayElementRef<T>(_buffer, index); get => ref _buffer[index];
} }
public readonly bool IsCreated public readonly bool IsCreated
@@ -128,6 +128,7 @@ public unsafe struct UnsafeArray<T> : IUnsafeCollection<T>
_allocator = Allocator.External; _allocator = Allocator.External;
} }
/// <inheritdoc/>
public void Resize(int newSize) public void Resize(int newSize)
{ {
if (newSize == _count) if (newSize == _count)
@@ -139,20 +140,28 @@ public unsafe struct UnsafeArray<T> : IUnsafeCollection<T>
_count = newSize; _count = newSize;
} }
/// <inheritdoc/>
[MethodImpl(MethodImplOptions.AggressiveInlining)] [MethodImpl(MethodImplOptions.AggressiveInlining)]
public readonly void Clear() public readonly void Clear()
{ {
MemClear(_buffer, (nuint)(_count * sizeof(T))); MemClear(_buffer, (nuint)(_count * sizeof(T)));
} }
/// <inheritdoc/>
[MethodImpl(MethodImplOptions.AggressiveInlining)] [MethodImpl(MethodImplOptions.AggressiveInlining)]
public readonly void* GetUnsafePtr() public readonly void* GetUnsafePtr()
{ {
return _buffer; return _buffer;
} }
/// <inheritdoc/>
public void Dispose() public void Dispose()
{ {
if (!IsCreated)
{
return;
}
AllocationManager.Free(_buffer, _allocator); AllocationManager.Free(_buffer, _allocator);
_buffer = null; _buffer = null;

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@@ -49,7 +49,7 @@ public unsafe struct UnsafeHashSet<T> : IUnsafeCollection<T>, IEnumerable<T>
public IEnumerator<T> GetEnumerator() => new Enumerator((HashMapHelper<T>*)UnsafeUtilities.AddressOf(ref _hashMap)); public IEnumerator<T> GetEnumerator() => new Enumerator((HashMapHelper<T>*)UnsafeUtilities.AddressOf(ref _hashMap));
IEnumerator IEnumerable.GetEnumerator() => GetEnumerator(); IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
public UnsafeHashSet(int capacity, Allocator allocator, AllocationOption allocationOption) public UnsafeHashSet(int capacity, Allocator allocator, AllocationOption allocationOption = AllocationOption.None)
{ {
_hashMap = new HashMapHelper<T>(capacity, 0, HashMapHelper<T>.MINIMAL_CAPACITY, allocator, allocationOption); _hashMap = new HashMapHelper<T>(capacity, 0, HashMapHelper<T>.MINIMAL_CAPACITY, allocator, allocationOption);
} }

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@@ -118,10 +118,12 @@ public unsafe struct UnsafeList<T> : IUnsafeCollection<T>
public readonly int Capacity => _array.Count; public readonly int Capacity => _array.Count;
public readonly bool IsCreated => _array.IsCreated; public readonly bool IsCreated => _array.IsCreated;
public readonly ref T this[int index] public readonly T this[int index]
{ {
[MethodImpl(MethodImplOptions.AggressiveInlining)] [MethodImpl(MethodImplOptions.AggressiveInlining)]
get => ref _array[index]; get => _array[index];
[MethodImpl(MethodImplOptions.AggressiveInlining)]
set => _array[index] = value;
} }
public IEnumerator<T> GetEnumerator() => new Enumerator((UnsafeList<T>*)UnsafeUtilities.AddressOf(ref this)); public IEnumerator<T> GetEnumerator() => new Enumerator((UnsafeList<T>*)UnsafeUtilities.AddressOf(ref this));

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@@ -70,10 +70,12 @@ public unsafe struct UnsafeQueue<T> : IUnsafeCollection<T>
public readonly int Capacity => _array.Count; public readonly int Capacity => _array.Count;
public readonly bool IsCreated => _array.IsCreated; public readonly bool IsCreated => _array.IsCreated;
public readonly ref T this[int index] public readonly T this[int index]
{ {
[MethodImpl(MethodImplOptions.AggressiveInlining)] [MethodImpl(MethodImplOptions.AggressiveInlining)]
get => ref _array[index]; get => _array[index];
[MethodImpl(MethodImplOptions.AggressiveInlining)]
set => _array[index] = value;
} }
public IEnumerator<T> GetEnumerator() => new Enumerator((UnsafeQueue<T>*)UnsafeUtilities.AddressOf(ref this)); public IEnumerator<T> GetEnumerator() => new Enumerator((UnsafeQueue<T>*)UnsafeUtilities.AddressOf(ref this));

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@@ -37,7 +37,7 @@ public class MemoryLeakException(params MemoryLeakExceptionInfo[] Infos) : Excep
var frame = stackTrace.GetFrame(i); var frame = stackTrace.GetFrame(i);
if (frame != null) if (frame != null)
{ {
stringBuilder.AppendLine($"File: {frame.GetFileName()}, Line: {frame.GetFileLineNumber()}"); stringBuilder.AppendLine($"File: {frame.GetFileName()}, Method: {DiagnosticMethodInfo.Create(frame)?.Name}, Line: {frame.GetFileLineNumber()}");
} }
} }

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@@ -15,7 +15,8 @@ public unsafe static class UnsafeCollectionExtensions
/// <param name="source">Represents the source collection from which elements are copied.</param> /// <param name="source">Represents the source collection from which elements are copied.</param>
/// <param name="destination">Represents the target span where elements are copied to.</param> /// <param name="destination">Represents the target span where elements are copied to.</param>
/// <exception cref="ArgumentException">Thrown when the sizes of the source collection and destination span do not match.</exception> /// <exception cref="ArgumentException">Thrown when the sizes of the source collection and destination span do not match.</exception>
public static void CopyTo<T>(this IUnsafeCollection<T> source, Span<T> destination) where T : unmanaged public static void CopyTo<T>(this IUnsafeCollection<T> source, Span<T> destination)
where T : unmanaged
{ {
if (source.Count > destination.Length) if (source.Count > destination.Length)
{ {
@@ -38,7 +39,8 @@ public unsafe static class UnsafeCollectionExtensions
/// <param name="destinationIndex">The starting index in the destination span where the elements will be placed.</param> /// <param name="destinationIndex">The starting index in the destination span where the elements will be placed.</param>
/// <param name="length">The number of elements to copy from the source to the destination.</param> /// <param name="length">The number of elements to copy from the source to the destination.</param>
/// <exception cref="ArgumentException">Thrown when the specified range exceeds the bounds of the source collection or destination span.</exception> /// <exception cref="ArgumentException">Thrown when the specified range exceeds the bounds of the source collection or destination span.</exception>
public static void CopyTo<T>(this IUnsafeCollection<T> source, Span<T> destination, int sourceIndex, int destinationIndex, int length) where T : unmanaged public static void CopyTo<T>(this IUnsafeCollection<T> source, Span<T> destination, int sourceIndex, int destinationIndex, int length)
where T : unmanaged
{ {
if (sourceIndex + length > source.Count || destinationIndex + length > destination.Length) if (sourceIndex + length > source.Count || destinationIndex + length > destination.Length)
{ {
@@ -58,7 +60,8 @@ public unsafe static class UnsafeCollectionExtensions
/// <param name="destination">Represents the unsafe collection that will receive the copied elements.</param> /// <param name="destination">Represents the unsafe collection that will receive the copied elements.</param>
/// <param name="source">Represents the span containing the elements to be copied to the unsafe collection.</param> /// <param name="source">Represents the span containing the elements to be copied to the unsafe collection.</param>
/// <exception cref="ArgumentException">Thrown when the source span and destination collection have different sizes.</exception> /// <exception cref="ArgumentException">Thrown when the source span and destination collection have different sizes.</exception>
public static void CopyFrom<T>(this IUnsafeCollection<T> destination, Span<T> source) where T : unmanaged public static void CopyFrom<T>(this IUnsafeCollection<T> destination, Span<T> source)
where T : unmanaged
{ {
if (destination.Count > source.Length) if (destination.Count > source.Length)
{ {
@@ -81,7 +84,8 @@ public unsafe static class UnsafeCollectionExtensions
/// <param name="destinationIndex">The starting index in the destination collection where the elements will be placed.</param> /// <param name="destinationIndex">The starting index in the destination collection where the elements will be placed.</param>
/// <param name="length">The number of elements to copy from the source span to the destination collection.</param> /// <param name="length">The number of elements to copy from the source span to the destination collection.</param>
/// <exception cref="ArgumentException">Thrown when the specified range exceeds the bounds of the source span or destination collection.</exception> /// <exception cref="ArgumentException">Thrown when the specified range exceeds the bounds of the source span or destination collection.</exception>
public static void CopyFrom<T>(this IUnsafeCollection<T> destination, Span<T> source, int sourceIndex, int destinationIndex, int length) where T : unmanaged public static void CopyFrom<T>(this IUnsafeCollection<T> destination, Span<T> source, int sourceIndex, int destinationIndex, int length)
where T : unmanaged
{ {
if (sourceIndex + length > source.Length || destinationIndex + length > destination.Count) if (sourceIndex + length > source.Length || destinationIndex + length > destination.Count)
{ {
@@ -100,7 +104,8 @@ public unsafe static class UnsafeCollectionExtensions
/// <typeparam name="T">Represents a type that is unmanaged, allowing for direct memory manipulation.</typeparam> /// <typeparam name="T">Represents a type that is unmanaged, allowing for direct memory manipulation.</typeparam>
/// <param name="source">The UnsafeCollection instance that contains the data to be converted.</param> /// <param name="source">The UnsafeCollection instance that contains the data to be converted.</param>
/// <returns>A new collection containing the elements from the UnsafeCollection.</returns> /// <returns>A new collection containing the elements from the UnsafeCollection.</returns>
public static T[] ToArray<T>(this IUnsafeCollection<T> source) where T : unmanaged public static T[] ToArray<T>(this IUnsafeCollection<T> source)
where T : unmanaged
{ {
var array = new T[source.Count]; var array = new T[source.Count];
fixed (T* ptr = array) fixed (T* ptr = array)
@@ -117,7 +122,8 @@ public unsafe static class UnsafeCollectionExtensions
/// <typeparam name="T">Represents a type that is unmanaged, allowing for direct memory manipulation.</typeparam> /// <typeparam name="T">Represents a type that is unmanaged, allowing for direct memory manipulation.</typeparam>
/// <param name="source">The collection from which elements are copied to create the new list.</param> /// <param name="source">The collection from which elements are copied to create the new list.</param>
/// <returns>A list containing the elements from the specified unmanaged collection.</returns> /// <returns>A list containing the elements from the specified unmanaged collection.</returns>
public static List<T> ToList<T>(this IUnsafeCollection<T> source) where T : unmanaged public static List<T> ToList<T>(this IUnsafeCollection<T> source)
where T : unmanaged
{ {
var list = new List<T>(source.Count); var list = new List<T>(source.Count);
fixed (T* ptr = list.ToArray()) fixed (T* ptr = list.ToArray())
@@ -133,7 +139,8 @@ public unsafe static class UnsafeCollectionExtensions
/// <typeparam name="T">Represents a type that can be stored in unmanaged memory.</typeparam> /// <typeparam name="T">Represents a type that can be stored in unmanaged memory.</typeparam>
/// <param name="source">The UnsafeCollection instance to be converted into a Span.</param> /// <param name="source">The UnsafeCollection instance to be converted into a Span.</param>
/// <returns>A Span that provides a view over the elements of the UnsafeCollection.</returns> /// <returns>A Span that provides a view over the elements of the UnsafeCollection.</returns>
public static Span<T> AsSpan<T>(this IUnsafeCollection<T> source) where T : unmanaged public static Span<T> AsSpan<T>(this IUnsafeCollection<T> source)
where T : unmanaged
{ {
return new(source.GetUnsafePtr(), source.Count); return new(source.GetUnsafePtr(), source.Count);
} }
@@ -145,7 +152,8 @@ public unsafe static class UnsafeCollectionExtensions
/// <param name="source">The collection to search for the specified value.</param> /// <param name="source">The collection to search for the specified value.</param>
/// <param name="value">The value to locate within the collection.</param> /// <param name="value">The value to locate within the collection.</param>
/// <param name="index">Outputs the index of the found value or -1 if not found.</param> /// <param name="index">Outputs the index of the found value or -1 if not found.</param>
public static void IndexOf<T>(this IUnsafeCollection<T> source, T value, out int index) where T : unmanaged, IEquatable<T> public static void IndexOf<T>(this IUnsafeCollection<T> source, T value, out int index)
where T : unmanaged, IEquatable<T>
{ {
for (var i = 0; i < source.Count; i++) for (var i = 0; i < source.Count; i++)
{ {
@@ -165,7 +173,8 @@ public unsafe static class UnsafeCollectionExtensions
/// <param name="source">The collection being searched for the specified value.</param> /// <param name="source">The collection being searched for the specified value.</param>
/// <param name="value">The value being searched for within the collection.</param> /// <param name="value">The value being searched for within the collection.</param>
/// <returns>Returns true if the value is found; otherwise, returns false.</returns> /// <returns>Returns true if the value is found; otherwise, returns false.</returns>
public static bool Conations<T>(this IUnsafeCollection<T> source, T value) where T : unmanaged, IEquatable<T> public static bool Conations<T>(this IUnsafeCollection<T> source, T value)
where T : unmanaged, IEquatable<T>
{ {
source.IndexOf(value, out var index); source.IndexOf(value, out var index);
return index != -1; return index != -1;