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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON |
SD_BUS_SLOT_SET_DESCRIPTION(3)s_slot_set_description_SLOT_SET_DESCRIPTION(3)
sd_bus_slot_set_description, sd_bus_slot_get_description - Set or
query the description of bus slot objects
#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);
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.
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.
These APIs are implemented as a shared library, which can be compiled
and linked to with the libsystemd pkg-config(1) file.
systemd(1), sd-bus(3) sd_bus_slot_ref(3), sd_bus_slot_set_userdata(3)
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 2020-08-13. (At that
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systemd 246 SD_BUS_SLOT_SET_DESCRIPTION(3)
Pages that refer to this page: sd-bus(3) , 30-systemd-environment-d-generator(7) , systemd.directives(7) , systemd.index(7)