Re: Websockets on the IBMi

Nathan

Some other points of interest. There is normally a limit on the number of
concurrent XHR connections the browser will allow. There appears to be no
such limit with WS. Whether or not you see that as a good thing depends on
what you want to achieve.

Also, with jWebsocket, you don't have to use the default TCP engine. It
comes with NIO, Grizzly, Tomcat and Jetty also (maybe more, I need to
check). I have only tested with the TCP and NIO engines thus far.

Kevin

On 13 Jul 2012, at 17:41, "Nathan Andelin" <nandelin@xxxxxxxxx> wrote:

From:"Dean, Robert"
That's why I really think something like Atmosphere is a better

solution; it

abstracts the transport layer.The framework will negotiate that based

on the

capabilities of both ends.

That may appear to be more convenient from a programming point of view.

But it makes the assumption that XHR and WS are merely "transport layers"
that can be used interchangeably, which may not always be true. Since XHR
uses the traditional request-response cycle, the client may decide to
change the next "request" based on the content of the "response", where WS
just sends an acknowledgement that it received a response then continues to
"listen".

This whole matter of XHR vs. WS would be settled for me if the XHR

specification included an optional parameter that provided for NOT
transmitting HTTP Headers in requests and responses. That way XHR would be
essentially as efficient as WS, without needing to interface with a
secondary WS server.

-Nathan.

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