[Laszlo-dev] [Laszlo-user] setting timeout to longer than 30 seconds

[Henry Minsky]

I can't remember what the original thinking was on having a minute or
less timeout  by default, need to ask david/adam/max.

I think longer timeouts ought to be fine and should probably be the
default, as Tucker has suggested from time to time.




On Dec 27, 2007 5:48 PM, Sarah Allen <sallen at laszlosystems.com> wrote:
> huh.  I always thought the 30 second limit was a Flash setting, not an
> OL setting.  Is there any underlying limit that we should be concerned
> about?  We're seeing legitimate requests from some users that take
> longer than 30 seconds on slow connections and I was thinking of just
> increasing this to two or three minutes.  Other than the delay in
> finding out your server is down, are there any other drawbacks to a long
> timeout?
>
> Thanks,
> Sarah
>
>
>
> On Thu, Dec 27, 2007 at 12:54 PM, Henry Minsky wrote:
>
> > Here is the flow of control for SWF data request in LPS 4
> >
> > + The constructor for LzDataset sets its timeout in this code:
> >
> >     if ('timeout' in args && args.timeout) {
> >         this.timeout = args.timeout;
> >     } else {
> >         this.timeout = canvas.dataloadtimeout;
> >     }
> >
> >
> > So it default to the value of the canvas.dataloadtimeout, if no
> > explicit timeout init arg
> > is passed in.
> >
> > + In the LPS 4 world where we have the new LzHTTPDataProvider, the
> > timeout
> > is passed along by LzHTTPDataProvider .doRequest() to the  SWF kernel
> > LzHTTPLoader object
> >
> >         tloader.setTimeout(dreq.timeout);
> >
> >
> >
> > + This timeout gets passed in to the good old LzLoader kernel object,
> > which gets
> > then gets passed  to the LzLoadQueue service.
> >
> > LzHTTPLoader.prototype.setTimeout = function (timeout) {
> >     this.timeout = timeout;
> >     this.lzloader.timeout = timeout;
> > }
> >
> > + The LzLoader creates a "load request object", which happens to be a
> > Flash native XML object, and it sets the "timeout" property to the
> > LzLoader's timeout value.
> >
> >
> > + Then the "load object" is passed to LzLoadQueue, which is
> > responsible for actually sending the data requests. The timeout
> > property is used to checked
> > by a delegate which is triggered by an LzTimer event.
> >
> >
> > On Dec 27, 2007 3:42 PM, Sarah Allen <sallen at laszlosystems.com> wrote:
> >> what does this  do "under the hood" and will it apply to a Flash
> >> Upload
> >> request which is not currently supprted by OpenLaszlo but which we do
> >> with a custom compoent which embeds ActionScript?
> >>
> >> Thanks,
> >> Sarah
> >>
>



-- 
Henry Minsky
Software Architect
hminsky at laszlosystems.com