Martin Pitt [2016-07-06 13:47 +0200]: > Simon McVittie [2016-07-05 10:27 +0100]: > > Could this be done by having the .desktop file in /usr/share/xsessions > > or /usr/share/wayland-sessions start an appropriate systemd user unit > > directly, and wait for it to terminate? > > There is currently no command (other than a polling loop) to wait > until a particular unit gets stopped. I. e. > > Exec=gnome-session --session=gnome > > would need to be replaced with something like > > Exec=/bin/sh -c "systemctl start gnome-session.target; > wait-until-service-stopped gnome-session.service; systemctl stop > gnome-session.target"
[...] > I have a gut feeling that this should be expressible with systemd > dependencies -- i. e. "if gnome-session.service stops, then stop > gnome-session.target". The v3 approach now does this, so the above would reduce to something like Exec=/bin/sh -c 'systemctl start gnome-session.target; systemctl wait-unit gnome-session.target' for a hypothetical "wait-unit" verb which blocks until the given unit stops. Or perhaps even Exec=systemctl start --wait-until-stopped gnome-session.target Martin -- Martin Pitt | http://www.piware.de Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org) _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
