crash recipe for htmlText?

Richard Gaskin ambassador at fourthworld.com
Tue Jan 11 03:04:54 EST 2005


xbury.cs at clearstream.com wrote:
 > On 10.01.2005 22:58:57 use-revolution-bounces wrote:
 >
 >> I'm getting some intermittent hard crashes after setting
 >> the htmlText of a field.  Trying to pin this down, I have
 >> a script that repeatedly performs the same parsing,
 >> formatting, and htmlText setting over and over, and
 >> sometimes all of it works well, sometimes it displays
 >> garbage and crashes, and sometimes it displas garbage
 >> and doesn't crash.
 >
 > Some incompletely loaded images used to create crashes.
 > But haven't seen it since 2.5.
 >
 > Other than that, and with extensive testing using the
 > DiscreteBrowser I haven't had a problem with anything.
 >
 > Care to send me the html to test it here?

That's the hard part:  there isn't one.  It's a large collection, and 
sometimes it works great for several thousand iterations, then other 
times I'll see garbage in a field without a crash, and sometimes garbage 
with a crash.  It crashes on different files, and after a different 
number of iterations each time. :\

I think the thing about images may get us closer to understanding this 
anomaly.  In my own tests any gabage that appears is always after the 
first image referenced in my htmlText.  I've been running a test in the 
background in which I'm not including in the image references, many tens 
of thousands of iterations without a crash.  Hmmm....

It may make a difference with the crash (and certainly with subsequent 
performance) to redesign the main routine to cache the files and 
reference the local cached copy for display.

I needed to add that anyway, so I'll do that now and report back on how 
it works out.

On the upside I know this can be done well because WebMerge has been a 
similar method for years, and with many copies out in weekly use (with 
some customers daily) it's never crashed yet.

Hopefully I'll have good news and a recipe or workaround to report by 
morning...

--
  Richard Gaskin
  Fourth World Media Corporation
  __________________________________________________
  Rev tools and more: http://www.fourthworld.com/rev


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