sd_bus_slot_set_description(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON

SD_BUS_SLOT_SET_DESCRIPTION(3)slot_set_descriptionLOT_SET_DESCRIPTION(3)

NAME         top

       sd_bus_slot_set_description, sd_bus_slot_get_description - Set or
       query the description of bus slot objects

SYNOPSIS         top

       #include <systemd/sd-bus.h>

       int sd_bus_slot_set_description(sd_bus_slot* slot,
                                       const char *description);

       int sd_bus_slot_get_description(sd_bus_slot* bus,
                                       const char **description);

DESCRIPTION         top

       sd_bus_slot_set_description() sets the description string that is
       used in logging to the specified string. The string is copied
       internally and freed when the bus slot object is deallocated. The
       description argument may be NULL, in which case the description
       is unset.

       sd_bus_slot_get_description() returns a description string in
       description. If the string is not set, e.g. with
       sd_bus_slot_set_description(), and the slot is a bus match
       callback slot, the match string will be returned. Otherwise,
       -ENXIO is returned.

RETURN VALUE         top

       On success, these functions return 0 or a positive integer. On
       failure, they return a negative errno-style error code.

   Errors
       Returned errors may indicate the following problems:

       -EINVAL
           An required argument is NULL.

       -ENXIO
           The bus slot object has no description.

       -ENOMEM
           Memory allocation failed.

NOTES         top

       These APIs are implemented as a shared library, which can be
       compiled and linked to with the libsystemd pkg-config(1) file.

SEE ALSO         top

       systemd(1), sd-bus(3) sd_bus_slot_ref(3),
       sd_bus_slot_set_userdata(3)

COLOPHON         top

       This page is part of the systemd (systemd system and service
       manager) project.  Information about the project can be found at
       ⟨http://www.freedesktop.org/wiki/Software/systemd⟩.  If you have
       a bug report for this manual page, see
       ⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
       This page was obtained from the project's upstream Git repository
       ⟨https://github.com/systemd/systemd.git⟩ on 2021-08-27.  (At that
       time, the date of the most recent commit that was found in the
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systemd 249                               SD_BUS_SLOT_SET_DESCRIPTION(3)

Pages that refer to this page: sd-bus(3)