Re: [Libusbx-devel] Reverting atexit call of libusb_exit from libusb-compat ?

[Xiaofan C. <xia...@gm...>]

On Thu, Sep 5, 2013 at 3:26 AM, Hans de Goede <hde...@re...> wrote:
> Hi,
>
> As discussed in much detail here:
> https://bugzilla.redhat.com/show_bug.cgi?id=1003193
>
> Calling libusb_exit from atexit from libusb-compat-0.1.5 causes
> some apps to break.
>
> The app in question is the scanimage app from sane-backends, which
> uses atexit for cleanup itself.
>
> So what happens is the libusb-compat atexit handler runs first, and
> then the scanimage atexit cleanup code runs, and tries to cleanly
> shutdown the scanner (which may require communicating to it).
> ...
> I consider this behavior with some old apps a way bigger problem then the
> memory / resource leak we had before, therefor I suggest reverting the
> atexit changes to libusb-compat.
>

I agree.

On the other hand, maybe we then have to document this limitation
of libusb-compat.

BTW, do we need to replicate the libusb.org libusb-compat tickets in
libusbx github? Only Ticket 110 and 32 need to be copied as other
tickets have been closed.
 http://www.libusb.org/report/10

If yes, then I will copy the two tickets and add "Compat" in the
beginning of the description to distinguish them from libusbx tickets.



-- 
Xiaofan