How to block and release a Response?

[Bruce W.1]

I have a web page (called Page1) with an iFrame and a button on it. The
URL for the iFrame is another page, lets call it Page2. On Page1 I tack
a querystring onto the Page2 URL. The querystring tells Page2 to either
respond immediately or go into a Thread.Sleep state, which blocks the
Response.

I want another Page1 browser window to wake up the other one that's
sleeping. I do this with a querystring to Page2 which tells it to set
an Application["WakeUp"] = "true";

The thread that's sleeping actually loops once per second checking if
Application["WakeUp"] = "true". If false then it sleeps for another
second, and so on. If true then return the Response.

This isn't working the way I intended. The sleep loop seems to take
control until it times out, I check the iterations and terminate it
after 30 seconds. I don't seem to be able to set Application["WakeUp"]
= "true" (with the other browser) while the sleep loop is going. So the
loop never stops until time-out.

Is this making any sense? I know this sort of thing is not normally
done.

How can I put up an application-wide flag that tells all sleeping
responses to wake-up and complete the Response? The Application State
is the only way I can find to share anything between different browser
sessions. Rather than doing a sleep loop I'd much rather have an event
go to all sleeping responses.

Thanks for your help.

[bruce barker]

this approach will never work.

look at it from the browser point of view.

->> request (1) page 2 (sleep)

->> cancel request (1)
->> request (2) page 2 (wakeup)
<-- response request (2)

<-- server thows away request (1) response
also as the browser only supports two active connections to the same server,
its easy to lockup with this design.


-- bruce (sqlwork.com)


"Bruce W.1" <[e-mail]> wrote in message
news:40***************@direct.email...

I have a web page (called Page1) with an iFrame and a button on it. The
URL for the iFrame is another page, lets call it Page2. On Page1 I tack
a querystring onto the Page2 URL. The querystring tells Page2 to either
respond immediately or go into a Thread.Sleep state, which blocks the
Response.

I want another Page1 browser window to wake up the other one that's
sleeping. I do this with a querystring to Page2 which tells it to set
an Application["WakeUp"] = "true";

The thread that's sleeping actually loops once per second checking if
Application["WakeUp"] = "true". If false then it sleeps for another
second, and so on. If true then return the Response.

This isn't working the way I intended. The sleep loop seems to take
control until it times out, I check the iterations and terminate it
after 30 seconds. I don't seem to be able to set Application["WakeUp"]
= "true" (with the other browser) while the sleep loop is going. So the
loop never stops until time-out.

Is this making any sense? I know this sort of thing is not normally
done.

How can I put up an application-wide flag that tells all sleeping
responses to wake-up and complete the Response? The Application State
is the only way I can find to share anything between different browser
sessions. Rather than doing a sleep loop I'd much rather have an event
go to all sleeping responses.

Thanks for your help.

[Bruce W.1]

bruce barker wrote:

this approach will never work.

look at it from the browser point of view.

->> request (1) page 2 (sleep)

->> cancel request (1)
->> request (2) page 2 (wakeup)
<-- response request (2)

<-- server thows away request (1) response

also as the browser only supports two active connections to the same server,
its easy to lockup with this design.

-- bruce (sqlwork.com)

================================================== =====

Sorry, I should have mentioned, Page1 and Page2 are running off of two
separate DLL's, two projects.