Bug 81067 - org.freedesktop.DBus.Properties.PropertiesChanged signal is sent on system bus, but not on session bus
Summary: org.freedesktop.DBus.Properties.PropertiesChanged signal is sent on system bu...
Status: RESOLVED INVALID
Alias: None
Product: systemd
Classification: Unclassified
Component: general (show other bugs)
Version: unspecified
Hardware: ARM Linux (All)
: medium normal
Assignee: systemd-bugs
QA Contact: systemd-bugs
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-07-08 21:09 UTC by Tomasz Sterna
Modified: 2014-07-08 21:42 UTC (History)
0 users

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Description Tomasz Sterna 2014-07-08 21:09:47 UTC 
When I start a service on a system bus:
# systemctl --system start apkd.service
I see:
dbus-monitor --system "type='signal'"
[...]
signal sender=:1.1 -> dest=(null destination) serial=527 path=/org/freedesktop/systemd1/unit/apkd_2eservice; interface=org.freedesktop.DBus.Properties; member=PropertiesChanged
   string "org.freedesktop.systemd1.Unit"

But when I start a service on session bus:
$ systemctl --user start pebbled.service
I see nothing on:
$ dbus-monitor --session "type='signal'"
Comment 1 Tomasz Sterna 2014-07-08 21:42:25 UTC 
nmd
"Note that most signals are sent out only after Subscribe() has been invoked by at least one client."

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