[systemd-devel] [PATCH 00/28] Initial DHCP v4 library implementation

[Colin Walters]

On Thu, 2013-11-14 at 06:49 +0900, Marcel Holtmann wrote:

> that is the long term plan. Once ConnMan is switching over to use libsystemd-bus and kdbus,
> we are switching over to using the systemd event loop instead of GLib main loop 

But I think the long term architecturally correct place for the core
system main loop is glibc, not systemd.

For example, that would allow runtimes like OpenJDK and Python to
unconditionally depend on it (if present).

As systemd's event loop becomes public API, it has the potential to
create interoperability problems for GNOME - think applications like 
https://git.gnome.org/browse/gnome-logs
that want to both monitor the systemd journal and talk to GTK+.

At the moment it's OK because sd_journal has APIs sufficient to plug in
external loops.

Adding a mainloop API to glibc would be a lot of work - it might even
entail trying to get it by POSIX.  At least it'd entail describing the
interaction with the other POSIX APIs.  But I think that'd be worth the
effort.