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Replace and remove obsolete ByteMemoryPool type (#7155)

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* refactor: replace usage of ByteMemoryPool with MemoryOwner<byte>

* refactor: delete unused ByteMemoryPool and ByteMemoryPool.ByteMemoryPoolBuffer types

* refactor: change IMemoryOwner<byte> return types to MemoryOwner<byte>

* fix(perf): get span via `MemoryOwner<T>.Span` directly instead of `MemoryOwner<T>.Memory.Span`

* fix(perf): get span via MemoryOwner<T>.Span directly instead of `MemoryOwner<T>.Memory.Span`

* fix(perf): get span via MemoryOwner<T>.Span directly instead of `MemoryOwner<T>.Memory.Span`
This commit is contained in:
jhorv 2024-08-05 20:09:08 -04:00 committed by GitHub
parent 4a4b11871e
commit 7969fb6bba
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6 changed files with 13 additions and 171 deletions
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51
src/Ryujinx.Common/Memory/ByteMemoryPool.ByteMemoryPoolBuffer.cs
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@ -1,51 +0,0 @@
using System;
using System.Buffers;
using System.Threading;
namespace Ryujinx.Common.Memory
{
public partial class ByteMemoryPool
{
/// <summary>
/// Represents a <see cref="IMemoryOwner{Byte}"/> that wraps an array rented from
/// <see cref="ArrayPool{Byte}.Shared"/> and exposes it as <see cref="Memory{Byte}"/>
/// with a length of the requested size.
/// </summary>
private sealed class ByteMemoryPoolBuffer : IMemoryOwner<byte>
{
private byte[] _array;
private readonly int _length;
public ByteMemoryPoolBuffer(int length)
{
_array = ArrayPool<byte>.Shared.Rent(length);
_length = length;
}
/// <summary>
/// Returns a <see cref="Memory{Byte}"/> belonging to this owner.
/// </summary>
public Memory<byte> Memory
{
get
{
byte[] array = _array;
ObjectDisposedException.ThrowIf(array is null, this);
return new Memory<byte>(array, 0, _length);
}
}
public void Dispose()
{
var array = Interlocked.Exchange(ref _array, null);
if (array != null)
{
ArrayPool<byte>.Shared.Return(array);
}
}
}
}
}

106
src/Ryujinx.Common/Memory/ByteMemoryPool.cs
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@ -1,106 +0,0 @@
using System;
using System.Buffers;
namespace Ryujinx.Common.Memory
{
/// <summary>
/// Provides a pool of re-usable byte array instances.
/// </summary>
public static partial class ByteMemoryPool
{
/// <summary>
/// Returns the maximum buffer size supported by this pool.
/// </summary>
public static int MaxBufferSize => Array.MaxLength;
/// <summary>
/// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
/// The buffer may contain data from a prior use.
/// </summary>
/// <param name="length">The buffer's required length in bytes</param>
/// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
/// <exception cref="ArgumentOutOfRangeException"></exception>
public static IMemoryOwner<byte> Rent(long length)
=> RentImpl(checked((int)length));
/// <summary>
/// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
/// The buffer may contain data from a prior use.
/// </summary>
/// <param name="length">The buffer's required length in bytes</param>
/// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
/// <exception cref="ArgumentOutOfRangeException"></exception>
public static IMemoryOwner<byte> Rent(ulong length)
=> RentImpl(checked((int)length));
/// <summary>
/// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
/// The buffer may contain data from a prior use.
/// </summary>
/// <param name="length">The buffer's required length in bytes</param>
/// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
/// <exception cref="ArgumentOutOfRangeException"></exception>
public static IMemoryOwner<byte> Rent(int length)
=> RentImpl(length);
/// <summary>
/// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
/// The buffer's contents are cleared (set to all 0s) before returning.
/// </summary>
/// <param name="length">The buffer's required length in bytes</param>
/// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
/// <exception cref="ArgumentOutOfRangeException"></exception>
public static IMemoryOwner<byte> RentCleared(long length)
=> RentCleared(checked((int)length));
/// <summary>
/// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
/// The buffer's contents are cleared (set to all 0s) before returning.
/// </summary>
/// <param name="length">The buffer's required length in bytes</param>
/// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
/// <exception cref="ArgumentOutOfRangeException"></exception>
public static IMemoryOwner<byte> RentCleared(ulong length)
=> RentCleared(checked((int)length));
/// <summary>
/// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
/// The buffer's contents are cleared (set to all 0s) before returning.
/// </summary>
/// <param name="length">The buffer's required length in bytes</param>
/// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
/// <exception cref="ArgumentOutOfRangeException"></exception>
public static IMemoryOwner<byte> RentCleared(int length)
{
var buffer = RentImpl(length);
buffer.Memory.Span.Clear();
return buffer;
}
/// <summary>
/// Copies <paramref name="buffer"/> into a newly rented byte memory buffer.
/// </summary>
/// <param name="buffer">The byte buffer to copy</param>
/// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory with <paramref name="buffer"/> copied to it</returns>
public static IMemoryOwner<byte> RentCopy(ReadOnlySpan<byte> buffer)
{
var copy = RentImpl(buffer.Length);
buffer.CopyTo(copy.Memory.Span);
return copy;
}
private static ByteMemoryPoolBuffer RentImpl(int length)
{
if ((uint)length > Array.MaxLength)
{
throw new ArgumentOutOfRangeException(nameof(length), length, null);
}
return new ByteMemoryPoolBuffer(length);
}
}
}

6
src/Ryujinx.Common/Utilities/EmbeddedResources.cs
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@ -1,6 +1,6 @@
using Ryujinx.Common.Memory;
using Ryujinx.Common.Utilities;
using System;
using System.Buffers;
using System.IO;
using System.Linq;
using System.Reflection;
@ -42,14 +42,14 @@ namespace Ryujinx.Common
return StreamUtils.StreamToBytes(stream);
}
public static IMemoryOwner<byte> ReadFileToRentedMemory(string filename)
public static MemoryOwner<byte> ReadFileToRentedMemory(string filename)
{
var (assembly, path) = ResolveManifestPath(filename);
return ReadFileToRentedMemory(assembly, path);
}
public static IMemoryOwner<byte> ReadFileToRentedMemory(Assembly assembly, string filename)
public static MemoryOwner<byte> ReadFileToRentedMemory(Assembly assembly, string filename)
{
using var stream = GetStream(assembly, filename);

13
src/Ryujinx.Common/Utilities/StreamUtils.cs
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@ -1,6 +1,5 @@
using Microsoft.IO;
using Ryujinx.Common.Memory;
using System.Buffers;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
@ -16,7 +15,7 @@ namespace Ryujinx.Common.Utilities
return output.ToArray();
}
public static IMemoryOwner<byte> StreamToRentedMemory(Stream input)
public static MemoryOwner<byte> StreamToRentedMemory(Stream input)
{
if (input is MemoryStream inputMemoryStream)
{
@ -26,9 +25,9 @@ namespace Ryujinx.Common.Utilities
{
long bytesExpected = input.Length;
IMemoryOwner<byte> ownedMemory = ByteMemoryPool.Rent(bytesExpected);
MemoryOwner<byte> ownedMemory = MemoryOwner<byte>.Rent(checked((int)bytesExpected));
var destSpan = ownedMemory.Memory.Span;
var destSpan = ownedMemory.Span;
int totalBytesRead = 0;
@ -66,14 +65,14 @@ namespace Ryujinx.Common.Utilities
return stream.ToArray();
}
private static IMemoryOwner<byte> MemoryStreamToRentedMemory(MemoryStream input)
private static MemoryOwner<byte> MemoryStreamToRentedMemory(MemoryStream input)
{
input.Position = 0;
IMemoryOwner<byte> ownedMemory = ByteMemoryPool.Rent(input.Length);
MemoryOwner<byte> ownedMemory = MemoryOwner<byte>.Rent(checked((int)input.Length));
// Discard the return value because we assume reading a MemoryStream always succeeds completely.
_ = input.Read(ownedMemory.Memory.Span);
_ = input.Read(ownedMemory.Span);
return ownedMemory;
}

4
src/Ryujinx.Cpu/Jit/MemoryManagerHostTracked.cs
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@ -303,9 +303,9 @@ namespace Ryujinx.Cpu.Jit
}
else
{
IMemoryOwner<byte> memoryOwner = ByteMemoryPool.Rent(size);
MemoryOwner<byte> memoryOwner = MemoryOwner<byte>.Rent(size);
Read(va, memoryOwner.Memory.Span);
Read(va, memoryOwner.Span);
return new WritableRegion(this, va, memoryOwner);
}

4
src/Ryujinx.Memory/VirtualMemoryManagerBase.cs
View File

@ -130,9 +130,9 @@ namespace Ryujinx.Memory
}
else
{
IMemoryOwner<byte> memoryOwner = ByteMemoryPool.Rent(size);
MemoryOwner<byte> memoryOwner = MemoryOwner<byte>.Rent(size);
Read(va, memoryOwner.Memory.Span);
Read(va, memoryOwner.Span);
return new WritableRegion(this, va, memoryOwner);
}