Re: tls-ftp and GConf

[Alexander Larsson <alexl redhat com>]

On Sat, 2003-09-13 at 17:30, Ettore Perazzoli wrote:
> On Sat, 2003-09-13 at 07:16, Michael Meeks wrote:
> > On Mon, 2003-09-08 at 12:20, Alexander Larsson wrote:
> > > Furthermore, i'd like to point out that usage of gconf in vfs modules is
> > > very tricky, due to the fact that gconf is not threadsafe, and vfs
> > > modules are highly threaded.
> > 
> > 	That's going to need fixing since the evolution addressbook interfaces
> > seem to be heavily base on GConf, and we have to be able to use them in
> > a thread-safe way inside OO.o.
> > 
> > 	Since Ettore decided to use G/Conf, and promised me a thread-safe API -
> > I was hoping that he'd be doing that ;-) ultimately it shouldn't be
> > _that_ difficult I think - mostly just protecting the local cache access
> > with a global lock (you would imagine).
> 
> I am afraid I am missing some context here (I am not on the gnome-vfs
> mailing list).  :-)  What are you guys trying to do with GNOME VFS and
> the new Evolution backend APIs?

The context was just that I pointed out that using GConf in a vfs module
is tricky due to the threadsafety issues, and michael said you planned
to make gconf threadsafe.

> (The way the new APIs work, you only use GConf to retrieve the list of
> URIs for the calendars/addressbooks.  Once you have the URIs, you can
> use the actual backend API, which is thread safe.)

Similarily its not impossible to handle gconf in vfs-modules. What you
have to do is read the config values on startup to local globals
protected with a lock. Then set up gconf "monitors" on the keys you need
and make the handlers for those (that run on the main thread) set the
local globals (under the lock).

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 Alexander Larsson                                            Red Hat, Inc 
                   alexl redhat com    alla lysator liu se 
He's an immortal umbrella-wielding photographer who must take medication to 
keep him sane. She's an orphaned African-American snake charmer with an MBA 
from Harvard. They fight crime!