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Re: svn commit: r10788 - in trunk/subversion: include libsvn_subr

From: Peter N. Lundblad <peter_at_famlundblad.se>
Date: 2004-09-01 21:18:42 CEST

On Wed, 1 Sep 2004, [UTF-8] Branko Ä^Libej wrote:

> lundblad@tigris.org wrote:
>
> >Author: lundblad
> >Date: Tue Aug 31 14:20:47 2004
> >New Revision: 10788
> >
> >Modified:
> > trunk/subversion/include/svn_utf.h
> > trunk/subversion/libsvn_subr/cmdline.c
> > trunk/subversion/libsvn_subr/utf.c
> >Log:
> >Fix issue #2016. Cache UTF8 translation handles in a global hash table
> >instead of in the current pool, which improves performance, especially on
> >Windows.
> >
> >
> Apart from a bug that breaks compilation on (at least) FreeBSD, which I
> suspect is caused by using "#ifdef APR_HAS_THREADS" in some places
> instead of consistently testing with "#if"...
>
Thanks for analyzing this. Fixed in r10796.

> I think there is a better way to do this, that could avoid using global
> data and locks: add the xlate cache to the svn_client_context_t struct,
> and document that this structure is thread-specific. Most public
> functions need to grow a thread-specific context parameter anyway,
> although that will have to wait for 2.0. But I think it should be
> possible to use the cache from the context in most places where we do
> charset conversions now, by adding a set of conversion functions that
> take a context parameter.
>
I don't agree. How would libsvn_wc get the client context? IN the st case,
most of the translations are related to converting filenames. So you would
have to push the context down to the svn_io functions for this. An svn
context could be a good design for 2.0, but it doesn't solve the current
problem. Note that I'm talking about actual calls, not call sites in the
code.

Regards,
//Peter

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Received on Wed Sep 1 21:04:54 2004

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