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); |
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
acquired is not NULL, the function calls
org.freedesktop.DBus.ListActivableNames 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.
On success, sd_bus_list_names() returns a non-negative integer. On failure,
it returns a negative errno-style error code.
Functions described here are available as a shared
library, which can be compiled against and linked to with the
libsystemd pkg-config(1)
file.
The code described here uses
getenv(3),
which is declared to be not multi-thread-safe. This means that the code calling the functions described
here must not call
setenv(3)
from a parallel thread. It is recommended to only do calls to setenv()
from an early phase of the program when no other threads have been started.