Provided by: libsystemd-dev_252.5-2ubuntu3_amd64
NAME
sd_bus_list_names - Retrieve information about registered names on a bus
SYNOPSIS
#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[1] to retrieve the list of currently-owned names on the bus. If acquired is not NULL, the function calls org.freedesktop.DBus.ListActivableNames[2] 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. -ENOMEM Memory allocation failed. -ENOTCONN The bus is not connected.
NOTES
These APIs are implemented as a shared library, which can be compiled and linked to with the libsystemd pkg-config(1) file.
SEE ALSO
systemd(1), sd-bus(3)
NOTES
1. org.freedesktop.DBus.ListNames https://dbus.freedesktop.org/doc/dbus-specification.html#bus-messages-list-names 2. org.freedesktop.DBus.ListActivableNames https://dbus.freedesktop.org/doc/dbus-specification.html#bus-messages-list-activatable-names