[Mono-dev] Patch: XSLT thread safety
andreas.faerber at web.de
Thu Jul 17 11:52:13 EDT 2008
Am 17.07.2008 um 16:42 schrieb Atsushi Eno:
> Joshua Tauberer wrote:
>>> If MSDN says it is thread safe for transformation, then that is
>>> If it were correct, it requires whatever no one can achieve.
>> Not to go all semantics on you, but an API can't be wrong.
> What I said wrong here is MSDN documentation, not API (and yes as you
> say, I don't think differentiating them here is very productive).
>> yes. But if it's inconsistent, that doesn't tell you which way to
>> resolve the inconsistency. It seems perfectly sensible to resolve the
>> inconsistency by saying "so long as any scripts and extension
>> are also thread safe".
> So it falls back to my second reply: I don't think we welcome "x is
> thread safe" "y is not" sort of complication. (And I don't forget
> the performance issue in your change yet.)
If I got you correct, then msxsl:script is the only problem with
thread safety? Since it's a Microsoft extension I don't think many
stylesheets use it, and those that do "should" be aware of concurrency
issues. It's a relatively common pattern in J2EE to preload a
stylesheet and to have a servlet's request workers do the transform
asynchronously, relying on thread safety. Therefore interpreting the
MSDN docs in the way proposed by Joshua would make sense, and I don't
think we even have to spell out the "unless you do something stupid"
part for that.
Performance is a different matter of course.
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