gpoll.c:g_poll maps G_IO_PRI (which is POLLPRI) to the errorfds of
the select call. Let's do the same.
Change-Id: I8c9163f7495e0b237bde2d48beffea3b0776a1dd
Related: OS#1934
Even if we have not selected the fd (e.g. fd < 0), initialize revents
to 0. This seems to match gpoll.c:g_poll of glib.
Change-Id: I9e16a6d5a74a204c85808ba67a8f0f7af3045059
* It is written in C and using libosmovty and other data structures
* It is using sofia-sip for the SIP handling as a good library for
such a task
* It is using glib for the sofia-sip event loop integration. In the
future we can write our own root context but right now that looks
like a necessary evil. No glib usage is allowed in this code and
only sofia-glib is linked.