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add basics for async bzip2

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Adam Hathcock
2025-10-30 14:42:46 +00:00
parent dba68187ac
commit bc06f3179d
4 changed files with 299 additions and 1 deletions
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28
src/SharpCompress/Compressors/BZip2/BZip2Stream.cs
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@@ -1,5 +1,7 @@
using System;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using SharpCompress.IO;
namespace SharpCompress.Compressors.BZip2;
@@ -96,13 +98,37 @@ public sealed class BZip2Stream : Stream, IStreamStack
public override void SetLength(long value) => stream.SetLength(value);
#if !NETFRAMEWORK&& !NETSTANDARD2_0
#if !NETFRAMEWORK && !NETSTANDARD2_0
public override int Read(Span<byte> buffer) => stream.Read(buffer);
public override void Write(ReadOnlySpan<byte> buffer) => stream.Write(buffer);
public override async ValueTask<int> ReadAsync(
Memory<byte> buffer,
CancellationToken cancellationToken = default
) => await stream.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
public override async ValueTask WriteAsync(
ReadOnlyMemory<byte> buffer,
CancellationToken cancellationToken = default
) => await stream.WriteAsync(buffer, cancellationToken).ConfigureAwait(false);
#endif
public override async Task<int> ReadAsync(
byte[] buffer,
int offset,
int count,
CancellationToken cancellationToken = default
) => await stream.ReadAsync(buffer, offset, count, cancellationToken).ConfigureAwait(false);
public override async Task WriteAsync(
byte[] buffer,
int offset,
int count,
CancellationToken cancellationToken = default
) => await stream.WriteAsync(buffer, offset, count, cancellationToken).ConfigureAwait(false);
public override void Write(byte[] buffer, int offset, int count) =>
stream.Write(buffer, offset, count);

24
src/SharpCompress/Compressors/BZip2/CBZip2InputStream.cs
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@@ -2,6 +2,8 @@
using System;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using SharpCompress.IO;
/*
@@ -1127,6 +1129,28 @@ internal class CBZip2InputStream : Stream, IStreamStack
return k;
}
public override async Task<int> ReadAsync(
byte[] buffer,
int offset,
int count,
CancellationToken cancellationToken = default
)
{
var c = -1;
int k;
for (k = 0; k < count; ++k)
{
cancellationToken.ThrowIfCancellationRequested();
c = ReadByte();
if (c == -1)
{
break;
}
buffer[k + offset] = (byte)c;
}
return await Task.FromResult(k);
}
public override long Seek(long offset, SeekOrigin origin) => 0;
public override void SetLength(long value) { }

17
src/SharpCompress/Compressors/BZip2/CBZip2OutputStream.cs
View File

@@ -1,5 +1,7 @@
using System;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using SharpCompress.IO;
/*
@@ -2022,6 +2024,21 @@ internal sealed class CBZip2OutputStream : Stream, IStreamStack
}
}
public override async Task WriteAsync(
byte[] buffer,
int offset,
int count,
CancellationToken cancellationToken = default
)
{
for (var k = 0; k < count; ++k)
{
cancellationToken.ThrowIfCancellationRequested();
WriteByte(buffer[k + offset]);
}
await Task.CompletedTask;
}
public override bool CanRead => false;
public override bool CanSeek => false;