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Code Issues 975 Packages Projects Releases 20 Wiki Activity

add some fixes for rar to pool memory

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This commit is contained in:
Adam Hathcock
2025-10-23 09:40:15 +01:00
parent c108f2dcf3
commit 186ea74ada
3 changed files with 11 additions and 20 deletions
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11
src/SharpCompress/Compressors/Rar/UnpackV1/Unpack.cs
View File

@@ -22,10 +22,11 @@ internal sealed partial class Unpack : BitInput, IRarUnpack, IDisposable
// to ease in porting Unpack50.cs
Inp = this;
public void Dispose()
public override void Dispose()
{
if (!disposed)
{
base.Dispose();
if (!externalWindow)
{
ArrayPool<byte>.Shared.Return(window);
@@ -667,7 +668,6 @@ internal sealed partial class Unpack : BitInput, IRarUnpack, IDisposable
prgStack[I] = null;
}
writeStream.Write(FilteredData, 0, FilteredDataSize);
unpSomeRead = true;
writtenFileSize += FilteredDataSize;
destUnpSize -= FilteredDataSize;
WrittenBorder = BlockEnd;
@@ -695,15 +695,10 @@ internal sealed partial class Unpack : BitInput, IRarUnpack, IDisposable
private void UnpWriteArea(int startPtr, int endPtr)
{
if (endPtr != startPtr)
{
unpSomeRead = true;
}
if (endPtr < startPtr)
{
UnpWriteData(window, startPtr, -startPtr & PackDef.MAXWINMASK);
UnpWriteData(window, 0, endPtr);
unpAllBuf = true;
}
else
{
@@ -1078,7 +1073,7 @@ internal sealed partial class Unpack : BitInput, IRarUnpack, IDisposable
private bool AddVMCode(int firstByte, List<byte> vmCode)
{
var Inp = new BitInput();
using var Inp = new BitInput();
Inp.InitBitInput();
// memcpy(Inp.InBuf,Code,Min(BitInput::MAX_SIZE,CodeSize));

10
src/SharpCompress/Compressors/Rar/UnpackV1/Unpack15.cs
View File

@@ -19,14 +19,9 @@ internal partial class Unpack
private bool suspended;
internal bool unpAllBuf;
//private ComprDataIO unpIO;
private Stream readStream;
private Stream writeStream;
internal bool unpSomeRead;
private int readTop;
private long destUnpSize;
@@ -808,15 +803,10 @@ internal partial class Unpack
private void oldUnpWriteBuf()
{
if (unpPtr != wrPtr)
{
unpSomeRead = true;
}
if (unpPtr < wrPtr)
{
writeStream.Write(window, wrPtr, -wrPtr & PackDef.MAXWINMASK);
writeStream.Write(window, 0, unpPtr);
unpAllBuf = true;
}
else
{

10
src/SharpCompress/Compressors/Rar/VM/BitInput.cs
View File

@@ -1,6 +1,9 @@
using System;
using System.Buffers;
namespace SharpCompress.Compressors.Rar.VM;
internal class BitInput
internal class BitInput : IDisposable
{
/// <summary> the max size of the input</summary>
internal const int MAX_SIZE = 0x8000;
@@ -20,9 +23,10 @@ internal class BitInput
set => inBit = value;
}
public bool ExternalBuffer;
private byte[] _privateBuffer = ArrayPool<byte>.Shared.Rent(MAX_SIZE);
/// <summary> </summary>
internal BitInput() => InBuf = new byte[MAX_SIZE];
internal BitInput() => InBuf = _privateBuffer;
internal byte[] InBuf { get; }
@@ -87,4 +91,6 @@ internal class BitInput
/// <returns> true if an Oververflow would occur
/// </returns>
internal bool Overflow(int IncPtr) => (inAddr + IncPtr >= MAX_SIZE);
public virtual void Dispose() => ArrayPool<byte>.Shared.Return(_privateBuffer);
}