public Gram Enqueue(byte[] buffer, int offset, int length)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
else if (!(offset >= 0 && offset < buffer.Length))
{
throw new ArgumentOutOfRangeException(
"offset", offset, "Offset must be greater than or equal to zero and less than the size of the buffer.");
}
else if (length < 0 || length > buffer.Length)
{
throw new ArgumentOutOfRangeException(
"length", length, "Length cannot be less than zero or greater than the size of the buffer.");
}
else if ((buffer.Length - offset) < length)
{
throw new ArgumentException("Offset and length do not point to a valid segment within the buffer.");
}
int existingBytes = (_pending.Count * m_CoalesceBufferSize) + (_buffered == null ? 0 : _buffered.Length);
if ((existingBytes + length) > PendingCap)
{
throw new CapacityExceededException();
}
Gram gram = null;
while (length > 0)
{
if (_buffered == null)
{
// nothing yet buffered
_buffered = Gram.Acquire();
}
int bytesWritten = _buffered.Write(buffer, offset, length);
offset += bytesWritten;
length -= bytesWritten;
if (_buffered.IsFull)
{
if (_pending.Count == 0)
{
gram = _buffered;
}
_pending.Enqueue(_buffered);
_buffered = null;
}
}
return(gram);
}
