sd_bus_list_names

systemd

sd_bus_list_names

Retrieve information about registered names on a bus

#include <systemd/sd-bus.h>

int

sd_bus_list_names

sd_bus *

bus

char ***

acquired

char ***

activatable

Description

sd_bus_list_names() retrieves information about the registered names on a bus. If acquired is not NULL, this function calls org.freedesktop.DBus.ListNames to retrieve the list of currently-owned names on the bus. If activatable is not NULL, the function calls org.freedesktop.DBus.ListActivatableNames to retrieve the list of all names on the bus that can be activated. Note that ownership of the arrays returned by sd_bus_list_names() in acquired and activatable is transferred to the caller and hence, the caller is responsible for freeing these arrays and their contents.

Return Value

On success, sd_bus_list_names() returns a non-negative integer. On failure, it returns a negative errno-style error code.

Errors

Returned errors may indicate the following problems:

-EINVAL
bus or both acquired and activatable were NULL.

-ENOPKG
The bus cannot be resolved.

-ECHILD
The bus was created in a different process, library or module instance.

-ENOMEM
Memory allocation failed.

-ENOTCONN
The bus is not connected.

History

sd_bus_list_names() was added in version 221.