Hi all:
I know thingworx use websocket for long-term connection and bi-communication for message ,
I also learn that websocket is base on socket and is a application layer protocol of higher level
But I'm wonder why not use nio long-term connection of lower layer(based on tcp) to do this I think this has a better performance.
I'm not sure is this is right or wrong, can anybody help to figure out this problem.
Thanks in advance.
