public DeflateStream(Stream stream, CompressionMode mode, bool leaveOpen)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (CompressionMode.Compress != mode && mode != CompressionMode.Decompress)
{
throw new ArgumentException(SR.GetString("Argument out of range"), "mode");
}
this._stream = stream;
this._mode = mode;
this._leaveOpen = leaveOpen;
CompressionMode mode2 = this._mode;
if (mode2 != CompressionMode.Decompress)
{
if (mode2 == CompressionMode.Compress)
{
if (!this._stream.CanWrite)
{
throw new ArgumentException(SR.GetString("Not a writeable stream"), "stream");
}
this.deflater = DeflateStream.CreateDeflater();
this.m_AsyncWriterDelegate = new DeflateStream.AsyncWriteDelegate(this.InternalWrite);
this.m_CallBack = new AsyncCallback(this.WriteCallback);
}
}
else
{
if (!this._stream.CanRead)
{
throw new ArgumentException(SR.GetString("Not a readable stream"), "stream");
}
this.inflater = new Inflater();
this.m_CallBack = new AsyncCallback(this.ReadCallback);
}
this.buffer = new byte[8192];
}
public DeflateStream(Stream stream, CompressionMode mode, bool leaveOpen)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (CompressionMode.Compress != mode && (uint)mode > 0U)
{
throw new ArgumentException(SR.GetString("Argument out of range"), nameof(mode));
}
this._stream = stream;
this._mode = mode;
this._leaveOpen = leaveOpen;
switch (this._mode)
{
case CompressionMode.Decompress:
if (!this._stream.CanRead)
{
throw new ArgumentException(SR.GetString("Not a readable stream"), nameof(stream));
}
this.inflater = new Inflater();
this.m_CallBack = new AsyncCallback(this.ReadCallback);
break;
case CompressionMode.Compress:
if (!this._stream.CanWrite)
{
throw new ArgumentException(SR.GetString("Not a writeable stream"), nameof(stream));
}
this.deflater = DeflateStream.CreateDeflater();
this.m_AsyncWriterDelegate = new DeflateStream.AsyncWriteDelegate(this.InternalWrite);
this.m_CallBack = new AsyncCallback(this.WriteCallback);
break;
}
this.buffer = new byte[8192];
}
