public bool Equals(ComAdapterStream stream)
{
if (stream == null)
{
return(false);
}
return(stream.source == this.source);
}
public static void CopyTo(this Stream source, com.IStream pstm, long cb, IntPtr pcbRead, IntPtr pcbWritten)
{
if (!source.CanRead)
{
throw new NotSupportedException("Source stream doesn't support reading.");
}
using (var destination = new ComAdapterStream(pstm))
{
if (!destination.CanWrite)
{
throw new NotSupportedException("Destination stream doesn't support writing.");
}
var buffer = new byte[4096];
var totalBytesRead = 0L;
var totalBytesWritten = 0L;
var chunkLength = buffer.Length;
if (cb < chunkLength)
{
chunkLength = (int)cb;
}
while (totalBytesWritten < cb)
{
// Read
var bytesRead = source.Read(buffer, 0, chunkLength);
if (bytesRead == 0)
{
break;
}
totalBytesRead += bytesRead;
// Write
var previousPosition = destination.Position;
destination.Write(buffer, 0, bytesRead);
var bytesWritten = destination.Position - previousPosition;
if (bytesWritten == 0)
{
break;
}
totalBytesWritten += bytesWritten;
if (bytesRead != bytesWritten)
{
break;
}
}
if (pcbRead != IntPtr.Zero)
{
iop.Marshal.WriteInt64(pcbRead, totalBytesRead);
}
if (pcbWritten != IntPtr.Zero)
{
iop.Marshal.WriteInt64(pcbWritten, totalBytesWritten);
}
}
}