1SD_BUS_ADD_OBJECT_MANAGER(3)sd_bus_add_object_manageSrD_BUS_ADD_OBJECT_MANAGER(3)
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NAME

6       sd_bus_add_object_manager - Add a D-Bus object manager for a D-Bus
7       object sub-tree
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SYNOPSIS

10       #include <systemd/sd-bus.h>
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12       int sd_bus_add_object_manager(sd_bus *bus, sd_bus_slot **slot,
13                                     const char *path);
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DESCRIPTION

16       sd_bus_add_object_manager() installs a handler for the given path that
17       implements the GetManagedObjects() method of the
18       org.freedesktop.DBus.ObjectManager interface. See
19       org.freedesktop.DBus.ObjectManager[1] for more information.
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21       To implement the InterfacesAdded and InterfacesRemoved signals of the
22       org.freedesktop.DBus.ObjectManager interface, call
23       sd_bus_emit_interfaces_added(3) and sd_bus_emit_interfaces_removed(3)
24       whenever interfaces are added or removed from the sub-tree,
25       respectively.
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27       When sd_bus_add_object_manager() succeeds, a slot is created
28       internally. If the output parameter slot is NULL, a "floating" slot
29       object is created, see sd_bus_slot_set_floating(3). Otherwise, a
30       pointer to the slot object is returned. In that case, the reference to
31       the slot object should be dropped when the object manager is not needed
32       anymore, see sd_bus_slot_unref(3).
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RETURN VALUE

35       On success, sd_bus_add_object_manager() returns a non-negative integer.
36       On failure, it returns a negative errno-style error code.
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38   Errors
39       Returned errors may indicate the following problems:
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41       -EINVAL
42           One of the required parameters is NULL or path is not a valid
43           object path.
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45       -ENOPKG
46           The bus cannot be resolved.
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48       -ECHILD
49           The bus was created in a different process.
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51       -ENOMEM
52           Memory allocation failed.
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NOTES

55       These APIs are implemented as a shared library, which can be compiled
56       and linked to with the libsystemd pkg-config(1) file.
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SEE ALSO

59       sd-bus(3), busctl(1), sd_bus_add_object_vtable(3),
60       sd_bus_emit_interfaces_added(3), sd_bus_slot_unref(3)
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NOTES

63        1. org.freedesktop.DBus.ObjectManager
64           https://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-objectmanager
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68systemd 251                                       SD_BUS_ADD_OBJECT_MANAGER(3)
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