public async Task TestPipeDecompress()
{
var ms = new MemoryStream(_compressedData, false);
var reader = PipeReader.Create(ms);
var fse = new FsePipeDecompressor(_writer);
while (true)
{
ReadResult readResult = await reader.ReadAsync().ConfigureAwait(false);
if (readResult.IsCompleted || readResult.IsCanceled)
{
return;
}
fse.Process(readResult.Buffer, out SequencePosition consumed, out SequencePosition examined);
reader.AdvanceTo(consumed, examined);
switch (fse.State)
{
case FseDecompressorState.WriteOutput:
fse.NotifyFlushCompleted();
break;
case FseDecompressorState.InvalidData:
throw new InvalidDataException();
case FseDecompressorState.InvalidChecksum:
throw new InvalidDataException();
case FseDecompressorState.Completed:
return;
}
}
}
public static async Task DecompressAsync(PipeReader reader, PipeWriter writer, CancellationToken cancellationToken = default)
{
var fse = new FsePipeDecompressor(writer);
while (true)
{
ReadResult readResult = await reader.ReadAsync(cancellationToken).ConfigureAwait(false);
if (readResult.IsCompleted || readResult.IsCanceled)
{
await writer.CompleteAsync().ConfigureAwait(false);
return;
}
fse.Process(readResult.Buffer, out SequencePosition consumed, out SequencePosition examined);
reader.AdvanceTo(consumed, examined);
switch (fse.State)
{
case FseDecompressorState.WriteOutput:
await writer.FlushAsync().ConfigureAwait(false);
fse.NotifyFlushCompleted();
break;
case FseDecompressorState.InvalidData:
throw new InvalidDataException();
case FseDecompressorState.InvalidChecksum:
throw new InvalidDataException();
case FseDecompressorState.Completed:
await writer.CompleteAsync().ConfigureAwait(false);
return;
}
}
}
