NAME¶
dbus-monitor - debug probe to print message bus messages
SYNOPSIS¶
dbus-monitor [--system | --session | --address ADDRESS] [--profile |
--monitor] [watch expressions]
DESCRIPTION¶
The
dbus-monitor command is used to monitor messages going through a
D-Bus message bus. See
http://www.freedesktop.org/software/dbus/ for more
information about the big picture.
There are two well-known message buses: the systemwide message bus (installed on
many systems as the "messagebus" service) and the
per-user-login-session message bus (started each time a user logs in). The
--system and --session options direct
dbus-monitor to monitor the
system or session buses respectively. If neither is specified,
dbus-monitor monitors the session bus.
dbus-monitor has two different output modes, the 'classic'-style
monitoring mode and profiling mode. The profiling format is a compact format
with a single line per message and microsecond-resolution timing information.
The --profile and --monitor options select the profiling and monitoring output
format respectively. If neither is specified,
dbus-monitor uses the
monitoring output format.
In order to get
dbus-monitor to see the messages you are interested in,
you should specify a set of watch expressions as you would expect to be passed
to the
dbus_bus_add_match function.
The message bus configuration may keep
dbus-monitor from seeing all
messages, especially if you run the monitor as a non-root user.
OPTIONS¶
- --system
- Monitor the system message bus.
- --session
- Monitor the session message bus. (This is the
default.)
- --address ADDRESS
- Monitor an arbitrary message bus given at ADDRESS.
- --profile
- Use the profiling output format.
- --monitor
- Use the monitoring output format. (This is the default.)
EXAMPLE¶
Here is an example of using dbus-monitor to watch for the gnome typing monitor
to say things
dbus-monitor "type='signal',sender='org.gnome.TypingMonitor',interface='org.gnome.TypingMonitor'"
AUTHOR¶
dbus-monitor was written by Philip Blundell. The profiling output mode was added
by Olli Salli.
BUGS¶
Please send bug reports to the D-Bus mailing list or bug tracker, see
http://www.freedesktop.org/software/dbus/