On Wed, Feb 28, 2018 at 7:04 PM, Lennart Poettering <lenn...@poettering.net> wrote: > On Mo, 26.02.18 08:09, Mantas Mikulėnas (graw...@gmail.com) wrote: > >> > Daemons can choose to send additional variables. However, it is recommended >> > to prefix variable names not listed above with X_. >> > So naturally i tried >> > >> > sd_notify(0, "X_ANSWER=42") >> > >> > and apparently systemd has no problem with that, but my questions are 2 >> > now: >> > >> > 1) What does systemd do with this information? >> > >> >> Nothing. The documentation just says in other words that "the init system >> must not reject packets with unknown variables", but doesn't say that >> systemd or any other init will store all of them anywhere. > > Currently we indeed ignore those unknown variables entirely. It has > been requested that we expose these variables on the bus somehow. I > think that would be an OK addition, but we need to think about the > lifecycle of those vars then so that the vars we collect don't grow > without bounds.
I believe this is what we do with STATUS: messages today. I was just curious if there is a rate limit around this sd_notify interface. UMUT > > Lennart > > -- > Lennart Poettering, Red Hat > _______________________________________________ > systemd-devel mailing list > systemd-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/systemd-devel _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
