/**
* @see igware.protobuf.ProtoChannel#extractMessage(com.google.protobuf.MessageLite.Builder)
*/
public override void extractMessage(Type type, ref object message)
{
if (response == null)
{
response = new MemoryStream(4096);
namedPipeWrapper.readBufferFromNamedPipe(response);
namedPipeWrapper = null; // Now that we've read the entire response, reset the namedPipeWrapper.
response.Position = 0; // Done writing to it. Next, we will read from the beginning.
}
try
{ // TODO: we really want this to just be TryDeserializeWithLengthPrefix, but Pedela reported problems when he tried to use it.
int msgLen = 0;
bool success = ProtoBuf.Serializer.TryReadLengthPrefix(response, ProtoBuf.PrefixStyle.Base128, out msgLen);
if (success == false)
{
throw new protorpc.RpcLayerException(RpcStatus.Status.IO_ERROR, "Failed to read length prefix.");
}
// Deserialize reads the whole stream. Since 'response' can contain multiple protobufs, we need to
// separate out a copy of just the next protobuf.
MemoryStream tempInStream = new MemoryStream(response.GetBuffer(), (int)response.Position, msgLen);
response.Position += msgLen;
message = ProtoBuf.Serializer.NonGeneric.Deserialize(type, tempInStream);
}
catch (IOException e)
{
throw new protorpc.RpcLayerException(RpcStatus.Status.IO_ERROR, e.Message);
}
}
