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add a scanner, but this seems to be a wrong solution. Change open-source head

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This commit is contained in:
Youmu Liu
2026-07-07 18:20:38 +08:00
parent b053567eb7
commit 1705d7c245
276 changed files with 3468 additions and 7205 deletions
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StgSharp.Common/Collections/SwissTable.cs
+50 -38
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@@ -1,33 +1,10 @@
//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="SwissTable.cs"
// -----------------------------------------------------------------------------
// file="SwissTable"
// 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.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
// Copyright (c) Nitload.
// SPDX-License-Identifier: MIT
// -----------------------------------------------------------------------------
using System;
using System.Numerics;
using System.Runtime.CompilerServices;
@@ -55,7 +32,10 @@ namespace StgSharp.Collections
private readonly Action<nuint> _freeHandle;
private bool _disposed;
private SwissTable(Entry* buffer, Action<nuint> freeHandle)
private SwissTable(
Entry* buffer,
Action<nuint> freeHandle
)
{
_entries = buffer;
_freeHandle = freeHandle;
@@ -72,7 +52,10 @@ namespace StgSharp.Collections
return new SwissTable(buffer, handle => NativeMemory.AlignedFree((void*)handle));
}
public static SwissTable Create(Func<nuint, nuint> allocator, Action<nuint> freeHandle)
public static SwissTable Create(
Func<nuint, nuint> allocator,
Action<nuint> freeHandle
)
{
Entry* buffer = (Entry*)allocator(RequestedNativeMemorySize);
for (int i = 0; i < BucketCount; i++)
@@ -93,7 +76,11 @@ namespace StgSharp.Collections
GC.SuppressFinalize(this);
}
public bool TryAddOrSet(nuint key, nuint value, out bool isNewKey)
public bool TryAddOrSet(
nuint key,
nuint value,
out bool isNewKey
)
{
uint hash = BitOperations.Crc32C(CrcMagic, (ulong)key);
ushort entry = (ushort)(hash & (BucketCount - 1));
@@ -101,7 +88,10 @@ namespace StgSharp.Collections
return IBucketScanner.Current.TrySet(key, hash, bucket, value, out isNewKey);
}
public bool TryGet(nuint key, out nuint value)
public bool TryGet(
nuint key,
out nuint value
)
{
uint hash = BitOperations.Crc32C(CrcMagic, key);
ushort entry = (ushort)(hash & (BucketCount - 1));
@@ -116,7 +106,10 @@ namespace StgSharp.Collections
*/
}
public bool TryRemove(nuint key, out nuint value)
public bool TryRemove(
nuint key,
out nuint value
)
{
uint hash = BitOperations.Crc32C(CrcMagic, key);
ushort entry = (ushort)(hash & (BucketCount - 1));
@@ -124,7 +117,10 @@ namespace StgSharp.Collections
return IBucketScanner.Current.TryRemove(key, hash, bucket, out value);
}
internal static SwissTable Create(nuint bufferPtr, Action<nuint> FreeHandle)
internal static SwissTable Create(
nuint bufferPtr,
Action<nuint> FreeHandle
)
{
Entry* buffer = (Entry*)bufferPtr;
for (int i = 0; i < BucketCount; i++)
@@ -162,11 +158,27 @@ namespace StgSharp.Collections
static IBucketScanner Current { get; } = Create();
bool TryFind(nuint key, uint Hash, Bucket* bucket, out nuint value);
bool TryFind(
nuint key,
uint Hash,
Bucket* bucket,
out nuint value
);
unsafe bool TryRemove(nuint key, uint hash, Bucket* bucket, out nuint value);
unsafe bool TryRemove(
nuint key,
uint hash,
Bucket* bucket,
out nuint value
);
bool TrySet(nuint key, uint hash, Bucket* bucket, nuint value, out bool isNewKey);
bool TrySet(
nuint key,
uint hash,
Bucket* bucket,
nuint value,
out bool isNewKey
);
private static IBucketScanner Create()
{