[Pkg-utopia-maintainers] wader-core: does not kill daemon on remove

Michael Biebl biebl at debian.org
Wed Aug 1 19:51:17 UTC 2012


Hi Simon,

On 01.08.2012 21:35, Michael Biebl wrote:
> since you were asking for a way to reliably stop D-Bus activated
> services (on remove), see how it is done in udisks or upower, i.e. get
> the pid via GetConnectionUnixProcessID for the bus name that is claimed
> by wader-core, then simply use kill.
> 
> http://anonscm.debian.org/gitweb/?p=pkg-utopia/upower.git;a=blob;f=debian/upower.prerm;h=6327e01d5a07bd4693a7b0822430a1ffac3fea1d;hb=HEAD

We use this code already in quite a few maintainer scripts (udisks,
udisks2, upower, policykit-1, hal),

get_pid() {
    [ -n "$1" ] || return 0
    [ -S /var/run/dbus/system_bus_socket ] || return 0

    dbus-send --system --dest=org.freedesktop.DBus --print-reply \
              /org/freedesktop/DBus
org.freedesktop.DBus.GetConnectionUnixProcessID \
              string:$1 2>/dev/null | awk '/uint32/ {print $2}'
}

if [ "$1" = "remove" ]; then
    kill $(get_pid org.freedesktop.UPower) 2>/dev/null || true
fi



I'm wondering if we should add as small utiltily to dbus, say dbus-kill,
which takes a D-Bus name so you'd only have to write:

if [ "$1" = "remove" ]; then
    dbus-kill org.freedesktop.UPower || true
fi

Or something similar to that.

Michael

-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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