Re: persistent TCP connection over page reloads ?

mel wrote:
On Apr 15, 2:51 pm, Thomas 'PointedEars' Lahn <PointedE...@xxxxxx>
wrote:
mel wrote:
I need a persistent TCP connection with my web server over page
reloads.
No, you don't. Besides, persistent *HTTP* connections (which is what you
mean) have to be supported by both client and server, and they won't help
you here. Whether the HTTP connection is persistent or not, the current

wait. aren't HTTP connections built on top of TCP ?

Yes, they are. But that does not matter.

global execution context of the script engine is destructed when another
resource is being navigated to.

window.name & globalStorage & userData aren't destructed

As for window.name, there is insufficient proof for that.

This means that, even if the user goes to a different page (in
my domain), I want to keep a TCP connection live.
Chances are that it is kept alive already, as persistent connections are the
HTTP/1.1 default. You don't seem to know what TCP is.

You don't seem to understand my question.

You don't seem to have asked the right one.

I know I can do something similar with globalStorage in FF,
window.name & userData on IE,
Or simply cookies, supported by all scriptable UAs through the same mechanism.

cookies go back to the web server.

Cookies are stored client-side. They are submitted to the Web server only
on request.

i don't want them to. cookies only store strings, which doesn't work for
me either (unless I can serialize a xmlhttprequest).

but those storages only hold strings.
What else would you want to store? Even an image can be represented by a
sequence of characters.

A XmlHttpRequest can't.

Yes, it can. Reading it back is the difficult thing.

I want to store a XMLHttpRequest object and not destruct it over page
reloads.

Tough luck. You will need a persistent container object for your persistent
execution context, say a frame or another window.

Actually, it doesn't have to be a XMLHttpRequest, that is why I didn't
mentioned HTTP.

I beg your pardon?

As far as the connection is alive over page reloads, it works for me.

That depends on what you call a "page".

It could be a ftp session, or any other kind of connection through js,
java applets, flash or whatever other technology you want to use (as
Stevo pointed out).

ISTM you don't want to use browser scripting.

And, AFAIK, I can't serialize a TCP connection (could be through
XmlHttpRequest, etc).
But you can serialize objects.

I wonder if anyone knows if this is possible at all.
That depends on what you are *really* up to.

maybe you didn't understand what I need.

Maybe you have not explained it properly.

[...]
I want to stream data from the server to the client (I guess this is
called push, reversed ajax, or watever), but once the streaming starts
my server can't loose the connection with the client (the browser).

any ideas ?

You have explained what you want but not why. ISTM you are on the wrong
track, and in the wrong newsgroup anyway.


Please trim your quotes.


PointedEars
--
Use any version of Microsoft Frontpage to create your site.
(This won't prevent people from viewing your source, but no one
will want to steal it.)
-- from <http://www.vortex-webdesign.com/help/hidesource.htm>
.

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