/// <exception cref="ArgumentNullException"><paramref name="source"/> is null.</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="byteCount"/> is negative.</exception>
public int WriteBytes(Stream source, int byteCount)
{
if (source == null)
{
Throw.ArgumentNull(nameof(source));
}
if (byteCount < 0)
{
Throw.ArgumentOutOfRange(nameof(byteCount));
}
int start = Advance(byteCount);
int bytesRead = source.TryReadAll(_buffer, start, byteCount);
_position = start + bytesRead;
return bytesRead;
}
/// <exception cref="ArgumentNullException"><paramref name="source"/> is null.</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="byteCount"/> is negative.</exception>
/// <exception cref="InvalidOperationException">Builder is not writable, it has been linked with another one.</exception>
/// <returns>Bytes successfully written from the <paramref name="source" />.</returns>
public int TryWriteBytes(Stream source, int byteCount)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (byteCount < 0)
{
throw new ArgumentOutOfRangeException(nameof(byteCount));
}
if (byteCount == 0)
{
return 0;
}
int bytesRead = 0;
int bytesToCurrent = Math.Min(FreeBytes, byteCount);
if (bytesToCurrent > 0)
{
bytesRead = source.TryReadAll(_buffer, Length, bytesToCurrent);
AddLength(bytesRead);
if (bytesRead != bytesToCurrent)
{
return bytesRead;
}
}
int remaining = byteCount - bytesToCurrent;
if (remaining > 0)
{
Expand(remaining);
bytesRead = source.TryReadAll(_buffer, 0, remaining);
AddLength(bytesRead);
bytesRead += bytesToCurrent;
}
return bytesRead;
}
