[packagekit] backend initialized multiple times when using pk-application

[Richard Hughes]

On Thu, 2007-09-20 at 21:01 +0200, Andreas wrote:
> When using pk-application, the backend initializer function gets called
> more then once before the destroy function is called. That's a bug I
> guess. It makes the alpm backend crash because it has to initialize some
> stuff which must be guaranteed to only be initialized once at a time (of
> course you could work arround this).

Well, it might get called:
initialize
destroy
initialize
destroy

But it can't be called:

initialize
initialize
destroy

Unless you're threading... which you might be. Do you only hit this when
you do two simultaneous queries? If that's the case you'll get:

initialize(1)
initialize(2)
destroy(1)
destroy(2)

> I can't see the problem in pk-application. Can you have a look at it?
> Shouldn't even pakagekitd itself make sure when and how often this
> function is called?

Well, initialize gets called when the backend .so is loaded, and destroy
just before the .so is unloaded.

Richard