Re: Libnm async functions and GMainLoop

[Dan Williams <dcbw redhat com>]

On Thu, 2016-03-17 at 11:01 +0100, Thomas Haller wrote:
> On Wed, 2016-03-16 at 16:03 -0700, Aaron Zinghini wrote:
> > When using async functions such as
> > "nm_client_activate_connection_async" I am not getting the supplied
> > callback being called. Do I need to have a GMainLoop setup for
> > this?
> > Why isn't there a synchronous version of these functions?
> >
> > Thanks
> Hi,
>
>
> you are using libnm, right? No, there is no synchronous version.
> Not sure why, probably it is just a missing feature.

While there are many calls with both sync and async versions, we
recommend the async versions for a variety of reasons.  First the sync
versions can take along time to complete, since they may need to query
NetworkManager for a large amount of data.  They also may require user
interaction which depends entirely on the user to respond in a timely
manner.  Third, your application obviously cannot do anything during
the time the sync request is happening, which often leads to a sub-
optimal user experience, both from GUI and CLI type tools.

Dan

> Yes, you always need a proper GMainLoop running. After all, libnm is
> a
> glib library, and that is a requirement.
>
> It should be too complicated, have a look at:
> https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/examp
> les/C/glib/add-connection-
> libnm.c?id=e2040e5ebeae8e50e3f3b5a0e724fc9211866972
>
>
>
> Thomas
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