tree bcf9733725ffb8f41a3bc3917ff2d58eb5aa7200
parent 613b5367e8758f88a9bf302d88e8770ac693aa17
author Chau Ly <chaul@amperecomputing.com> 1718099128 +0000
committer Chau Ly <chaul@amperecomputing.com> 1718163919 +0000

control: manager: Services with no managed objs

When a D-Bus object used in events is under a service that has the
"org.freedesktop.DBus.ObjectManager", the control::json::Manager will
try to get all the managed objects under the service and add to cache.
However, in case when the results from the GetManagedObjects are empty,
it omits the attempt to directly read the object from D-Bus using the
configured information.

This patch handles this situation and allows services that have the
ObjectManager interface but empty managed objects can be read.

Example: Objects under xyz.openbmc_project.State.Host service.

root@mtmitchell-dcscm:~# busctl call xyz.openbmc_project.State.Host \
/xyz/openbmc_project/state/host0 org.freedesktop.DBus.ObjectManager \
GetManagedObjects

a{oa{sa{sv}}} 0

Signed-off-by: Chau Ly <chaul@amperecomputing.com>
Change-Id: I5eca78fdfbc8a26fb7effb861440dc3cf28959d0