protected override IGetOperationResult CreateResult(BinaryResponse response)
{
var retval = new GetOperationResult();
if (response == null)
{
return(retval.NotFound(this));
}
if (response.StatusCode == 0)
{
var flags = NetworkOrderConverter.DecodeUInt32(response.Extra.Array, 0);
retval.Value = new CacheItem((uint)flags, response.Data.Clone());
}
return(retval.WithResponse(response));
}
/// <summary>
/// Returns true if further IO is pending. (ie. body must be read)
/// </summary>
/// <param name="header"></param>
/// <param name="bodyLength"></param>
/// <param name="extraLength"></param>
/// <returns></returns>
private bool ProcessHeader(byte[] header)
{
if (header[Protocol.HEADER_INDEX_MAGIC] != Protocol.ResponseMagic)
{
throw new InvalidOperationException($"Expected magic value {Protocol.ResponseMagic}, received: {header[Protocol.HEADER_INDEX_MAGIC]}");
}
// TODO test if unsafe array gives a perf boost
OpCode = header[Protocol.HEADER_INDEX_OPCODE];
KeyLength = NetworkOrderConverter.DecodeUInt16(header, Protocol.HEADER_INDEX_KEY);
DataType = header[Protocol.HEADER_INDEX_DATATYPE];
StatusCode = NetworkOrderConverter.DecodeUInt16(header, Protocol.HEADER_INDEX_STATUS);
CorrelationId = NetworkOrderConverter.DecodeUInt32(header, Protocol.HEADER_INDEX_OPAQUE);
CAS = NetworkOrderConverter.DecodeUInt64(header, Protocol.HEADER_INDEX_CAS);
var bodyLength = (int)NetworkOrderConverter.DecodeUInt32(header, Protocol.HEADER_INDEX_BODY_LENGTH);
if (bodyLength > 0)
{
var extraLength = header[Protocol.HEADER_INDEX_EXTRA];
if (extraLength > 0)
{
Extra = ByteBuffer.Allocate(allocator, extraLength);
}
var dataLength = bodyLength - extraLength;
if (dataLength > 0)
{
Data = ByteBuffer.Allocate(allocator, dataLength);
}
return(true);
}
return(false);
}
