Alternative to busy-wait

[Kirsten]

Have you found any solution to a pause/sleep sentence in Javascript? Or what
about mutex, critical sections, etc?

I googled and I found a solution for IE using showModalDialog (very
interesting), but I need something compatible with Firefox:

function pause(numberMillis) {
var dialogScript =
'window.setTimeout(' +
' function () { window.close(); }, ' + numberMillis + ');';
var result =

window.showModalDialog(
'javascript:document.writeln(' +
'"<script>' + dialogScript + '<' + '/script>")');

}

 

[Jens Peter Karlsen [FP MVP]]

Use settimeout http://www.pageresource.com/jscript/jtimeout.htm

There is no such thing as a mutex in scripting as you can't create
threads. Likewise is there no "critical sections".

Regards Jens Peter Karlsen. Microsoft MVP - Frontpage.

 

[Kirsten]

I know this function but it isn't what I need. How do you do the following
with timeouts?

sentence1;
sleep(1000);
sentence2;
sentence3;

---->
sentence1;
window.settimeout("sentence2; sentence3;", 1000)

This would complicate too much my code.

There is no such thing as a mutex in scripting as you can't create
threads. Likewise is there no "critical sections".

Maybe, but there is concurrency -- in my particular case between iframes.

Thanks.

 

[Jens Peter Karlsen [FP MVP]]

See inline.

I know this function but it isn't what I need. How do you do the following
with timeouts?

sentence1;
sleep(1000);
sentence2;
sentence3;

---->
sentence1;
window.settimeout("sentence2; sentence3;", 1000)

This would complicate too much my code.

This is the only way to do it in Scripting. It is just too bad that it
complicates your code.

Maybe, but there is concurrency -- in my particular case between iframes.

There are no concurrency either. You may call a function in another
frame but they will run independently.

If you described your problem someone might be able to come up with a
solution.

Regards Jens Peter Karlsen. Microsoft MVP - Frontpage.