Concurrent requests possible?

[ras-marques]

I have been looking at the code and it seemed to me that work was started to make up to 8 concurrent requests possible.

Each time I log the result of tcpSend, the session number does increase, but looking at tcp_datafill_cb that takes fd as the argument, fd is not used. Instead, result_fd is filled with a dummy 123 value.

My goal is to be able to send up to 8 requests to a REST API from the Arduino before the reply from the server to the first request comes back. Is this even possible using the ENC28J60? Did I understand correctly that the work is only half done as of this date? I wouldn't mind expanding the library a bit to make this possible.