David Herrmann wrote on 19/10/14 12:05: > Hi > > On Fri, Oct 17, 2014 at 6:14 PM, Colin Guthrie <gm...@colin.guthr.ie> wrote: >> Hi, >> >> How soon after login can I rely on systemd --user having reached >> sockets.target? >> >> This feels a bit like a "you shouldn't rely on that point in time..." >> type answer is warrented, and when e.g. GNOME or KDE sessions fully use >> systemd to bring themselves up it won't be an issue, but right now, >> systemd --user is started by (I think) PAM. >> >> I want to rely on systemd --user to handle PulseAudio's activation >> (ditching the built in stuff) and but I'm worried that e.g. GNOME or KDE >> might start up their own session stuff and spawn some PA consuming >> process before systemd --user has reached it's sockets.target and is >> thus ready and listening on PA's native socket. >> >> Doesn't seem to be a problem on my machine here (it's working really >> nicely actually!) but figured I should ask here too. > > Ordering of user units is (see /usr/lib/systemd/user/): > default.target after basic.target after sockets.target > > PAM creates sessions by calling into systemd's pam-module, which then > uses CreateSession() (internal api!). This call does not return until > the job of user@.service is done. `systemd --user` notifies READY=1 > only after "default.target" is ready. > > Long story short: The PAM module blocks until the user-manager is > ready. Therefore, sockets.target is loaded and ready. > > (I'm no expert in sd job handling, so maybe Lennart can confirm this)
Thanks for the clarification. This is pretty much what Lennart thought when I quizzed him a couple nights ago, but said he'd double check. It sound like this is indeed the case. Nice :) Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited http://www.tribalogic.net/ Open Source: Mageia Contributor http://www.mageia.org/ PulseAudio Hacker http://www.pulseaudio.org/ Trac Hacker http://trac.edgewall.org/ _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
