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.

NOTES¶

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.

HISTORY¶

sd_bus_list_names() was added in version 221.

SEE ALSO¶

systemd(1), sd-bus(3)

NOTES¶

1.

org.freedesktop.DBus.ListNames

2.

org.freedesktop.DBus.ListActivableNames