internal byte[] RemoveLastDocument(BsonBuffer buffer)
{
var lastDocumentLength = buffer.Position - _lastDocumentStartPosition;
buffer.Position = _lastDocumentStartPosition;
var lastDocument = buffer.ReadBytes(lastDocumentLength);
buffer.Position = _lastDocumentStartPosition;
buffer.Length = _lastDocumentStartPosition;
BackpatchMessageLength(buffer);
return(lastDocument);
}
private byte[] RemoveLastDocument(BsonBuffer buffer)
{
var lastDocumentLength = buffer.Position - _lastDocumentStartPosition;
buffer.Position = _lastDocumentStartPosition;
var lastDocument = buffer.ReadBytes(lastDocumentLength);
buffer.Position = _lastDocumentStartPosition;
buffer.Length = _lastDocumentStartPosition;
_batchCount -= 1;
_batchLength = buffer.Position - _batchStartPosition;
return(lastDocument);
}
private IByteBuffer RemoveOverflow(BsonBuffer buffer)
{
var lastRequestLength = buffer.Position - _lastRequestPosition;
buffer.Position = _lastRequestPosition;
var lastArrayItem = buffer.ReadBytes(lastRequestLength);
if ((BsonType)lastArrayItem[0] != BsonType.Document)
{
throw new MongoInternalException("Expected overflow item to be a BsonDocument.");
}
var sliceOffset = Array.IndexOf <byte>(lastArrayItem, 0) + 1; // skip over type and array index
var overflow = new ByteArrayBuffer(lastArrayItem, sliceOffset, lastArrayItem.Length - sliceOffset, true);
buffer.Position = _lastRequestPosition;
buffer.Length = _lastRequestPosition;
_batchCount--;
_batchLength = buffer.Position - _batchStartPosition;
return(overflow);
}
