sd_bus_list_names(3) — Linux manual page


SD_BUS_LIST_NAMES(3)        sd_bus_list_names       SD_BUS_LIST_NAMES(3)

NAME         top

       sd_bus_list_names - Retrieve information about registered names
       on a bus

SYNOPSIS         top

       #include <systemd/sd-bus.h>

       int sd_bus_list_names(sd_bus *bus, char ***acquired,
                             char ***activatable);

DESCRIPTION         top

       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         top

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

       Returned errors may indicate the following problems:

           bus or both acquired and activatable were NULL.

           Added in version 246.

           The bus cannot be resolved.

           Added in version 246.

           The bus was created in a different process, library or module

           Added in version 246.

           Memory allocation failed.

           Added in version 246.

           The bus is not connected.

           Added in version 246.

NOTES         top

       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

HISTORY         top

       sd_bus_list_names() was added in version 246.

SEE ALSO         top

       systemd(1), sd-bus(3)

NOTES         top

        1. org.freedesktop.DBus.ListNames

        2. org.freedesktop.DBus.ListActivableNames

COLOPHON         top

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systemd 255                                         SD_BUS_LIST_NAMES(3)

Pages that refer to this page: sd-bus(3)systemd.directives(7)systemd.index(7)