[Spice-devel] [PATCH spice-gtk] Add call of gst_deinit at program exit

Christophe de Dinechin christophe.de.dinechin at gmail.com
Thu Oct 19 14:33:24 UTC 2017


> On 19 Oct 2017, at 15:10, Daniel P. Berrange <berrange at redhat.com> wrote:
> 
> On Thu, Oct 19, 2017 at 03:01:17PM +0200, Christophe de Dinechin wrote:
>>> One reason is that you may use a library dynamically, and you may dlclose() it, and then atexit() will likely crash. 
>> 
>> Is that a real or theoretical scenario? Who loads this library dynamically
>> currently?
> 
> Anyone using SPICE from a non-C language will have dlopen'd it and potentially
> later dlclose it. 

I’m actually quite curious how this could possibly fly today, given what I learned
recently about how we deal with gstreamer objects. Closing the library
seems a bit difficult. There isn’t even a header for that library.

That being said, there is this in spicy.c:

#if HAVE_GSTAUDIO || HAVE_GSTVIDEO
    gst_init(&argc, &argv);
#endif

So I guess it makes sense to put the gst_deinit there. Ugly #ifdefs included.
I’ll do a patch with this approach instead.

In that case, do we really need calls to gst_init_check() in the “library"?

> 
> Regards,
> Daniel
> -- 
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