/*
* struct {
* MsgHeader header; // standard message header
* int32 responseFlags; // bit vector - see details below
* int64 cursorID; // cursor id if client needs to do get more's
* int32 startingFrom; // where in the cursor this reply is starting
* int32 numberReturned; // number of documents in the reply
* document* documents; // documents
* }
*/
/// <summary>
/// Reads OP_REPLY but does not interpret it
/// </summary>
public static ReplyData Read_REPLY(Stream stream)
{
stream.Position = sizeof(Int32); //skip Total size
var hdrReqID = BinUtils.ReadInt32(stream);
var hdrRespTo = BinUtils.ReadInt32(stream);
var hdrOpCode = BinUtils.ReadInt32(stream);
if (hdrOpCode != OP_REPLY)
{
throw new MongoDbConnectorProtocolException(StringConsts.PROTO_READ_OP_REPLY_ERROR + " not OP_REPLY");
}
var flags = (ResponseFlags)BinUtils.ReadInt32(stream);
var cursorID = BinUtils.ReadInt64(stream);
var startingFrom = BinUtils.ReadInt32(stream);
var numReturned = BinUtils.ReadInt32(stream);
if (numReturned > MAX_DOC_COUNT_LIMIT)
{
throw new MongoDbConnectorProtocolException(StringConsts.PROTO_REPLY_DOC_COUNT_EXCEED_LIMIT_ERROR.Args(numReturned, MAX_DOC_COUNT_LIMIT));
}
var docs = new BSONDocument[numReturned];
for (var i = 0; i < numReturned; i++)
{
docs[i] = new BSONDocument(stream);
}
return(new ReplyData(hdrReqID, hdrRespTo, flags, cursorID, startingFrom, docs));
}
private Stream readSocket()
{
var nets = m_TcpClient.GetStream();
var total = BinUtils.ReadInt32(nets);
if (total >= Protocol.BSON_SIZE_LIMIT)
{
throw new MongoDBConnectorProtocolException(StringConsts.PROTO_SOCKET_READ_EXCEED_LIMIT_ERROR.Args(total, Protocol.BSON_SIZE_LIMIT));
}
var leftToRead = total - sizeof(Int32); //the total size includes the 4 bytes
m_BufferStream.SetLength(total);
var buffer = m_BufferStream.GetBuffer();
BinUtils.WriteInt32(buffer, total, 0);
socketRead(nets, buffer, sizeof(Int32), leftToRead);
m_Received.BindBuffer(buffer, 0, total);
return(m_Received);
//todo stats
}
