Run until a d-bus name appears on the session bus
mc-wait-for-name WELL-KNOWN-NAME
[D-BUS Service] Name=org.freedesktop.Telepathy.Client.Something Exec=/usr/bin/mc-wait-for-name org.freedesktop.Telepathy.Client.Something
mc-wait-for-name runs until a bus name appears, then exits successfully. This can be used as a service-activation helper for a bus name that is not directly activatable, but will be provided automatically (after a while) by the desktop session.
0
The bus name eventually appeared.
64 (EX_USAGE)
Invocation error (too many or too few arguments, or the bus name given was not a syntactically valid well-known bus name).
69 (EX_UNAVAILABLE)
mc-wait-for-name was unable to connect to the session bus.
75 (EX_TEMPFAIL)
The name did not appear within a reasonable time.
There are no additional command-line options.
The "reasonable time" to wait is currently hard-coded.