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stgsharp/StgSharp.Common/HighPerformance/Memory/SlabAllocator.cs
T
2025-08-25 09:50:30 +08:00

81 lines
2.7 KiB
C#

//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="SlabAllocator.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using StgSharp.HighPerformance.Memory;
using StgSharp.Threading;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace StgSharp.HighPerformance.Memory
{
public abstract class SlabAllocator<T> : IDisposable where T: unmanaged
{
public abstract nuint Allocate();
public static SlabAllocator<T> Create(nuint count, BufferLayout layout)
{
return layout switch
{
BufferLayout.Sequential => new SequentialSlabAllocator<T>(count),
BufferLayout.Chunked => new ChunkedSlabAllocator<T>(count),
_ => throw new ArgumentOutOfRangeException(nameof(layout), layout, null)
};
}
public abstract void Dispose();
public abstract void EnterBufferReading();
public abstract void ExitBufferReading();
public abstract void Free(nuint index);
public abstract SlabAllocationHandle<T> ReadAllocation();
}
public enum BufferLayout
{
Sequential,
Chunked,
HybridLayerSegregatedFit
}
}