// private methods
private void ChangeMoreToComeFromTrueToFalse()
{
var flagsPosition = _messageStartPosition + 16;
_stream.Position = flagsPosition;
var flags = (OpMsgFlags)_stream.ReadInt32();
if ((flags & OpMsgFlags.MoreToCome) == 0)
{
throw new InvalidOperationException("MoreToCome was not true.");
}
flags = flags & ~OpMsgFlags.MoreToCome;
_stream.Position = flagsPosition;
_stream.WriteInt32((int)flags);
}
private void CopyType1Section(BsonStream inputStream, BsonStream outputStream)
{
var payloadType = (PayloadType)inputStream.ReadByte();
if (payloadType != PayloadType.Type1)
{
throw new FormatException("Expected subsequent sections to be of type 1.");
}
var sectionStartPosition = inputStream.Position;
var sectionSize = inputStream.ReadInt32();
var sectionEndPosition = sectionStartPosition + sectionSize;
var identifier = inputStream.ReadCString(Utf8Encodings.Lenient);
outputStream.WriteByte((byte)BsonType.Array);
outputStream.WriteCString(identifier);
var arrayStartPosition = outputStream.Position;
outputStream.WriteInt32(0); // array length will be backpatched
var index = 0;
while (inputStream.Position < sectionEndPosition)
{
outputStream.WriteByte((byte)BsonType.Document);
outputStream.WriteCString(index.ToString());
CopyBsonDocument(inputStream, outputStream);
index++;
}
outputStream.WriteByte(0);
outputStream.BackpatchSize(arrayStartPosition);
}
// private methods
private void ChangeWFrom0To1()
{
var wPosition = FindWPosition();
_stream.Position = wPosition;
var w = _stream.ReadInt32();
if (w != 0)
{
throw new InvalidOperationException("w was not 0.");
}
_stream.Position = wPosition;
_stream.WriteInt32(1);
}
