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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | HISTORY | SEE ALSO | COLOPHON |
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SD_EVENT...T_ON_IDLE(3) sd_event_set_exit_on_idle SD_EVENT...T_ON_IDLE(3)
sd_event_set_exit_on_idle, sd_event_get_exit_on_idle - Enable
event loop exit-on-idle support
#include <systemd/sd-event.h>
int sd_event_set_exit_on_idle(sd_event *event, int b);
int sd_event_get_exit_on_idle(sd_event *event);
sd_event_set_exit_on_idle() may be used to enable or disable the
exit-on-idle support in the event loop object specified in the
event parameter. If enabled, the event loop will exit with a zero
exit code there are no more enabled (SD_EVENT_ON,
SD_EVENT_ONESHOT), non-exit, non-post event sources.
sd_event_get_exit_on_idle() may be used to determine whether
exit-on-idle support was previously requested by a call to
sd_event_set_exit_on_idle() with a true b parameter and
successfully enabled.
On success, sd_event_set_exit_on_idle() and
sd_event_get_exit_on_idle() return a non-zero positive integer if
the exit-on-idle support was successfully enabled. They return
zero if the exit-on-idle support was explicitly disabled with a
false b parameter. On failure, they return a negative errno-style
error code.
Errors
Returned errors may indicate the following problems:
-ECHILD
The event loop has been created in a different process,
library or module instance.
-EINVAL
The passed event loop object was invalid.
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.
sd_event_set_exit_on_idle() and sd_event_get_exit_on_idle() were
added in version 259.
systemd(1), sd-event(3), sd_event_new(3), sd_event_add_io(3),
sd_event_add_time(3), sd_event_add_signal(3),
sd_event_add_child(3), sd_event_add_inotify(3),
sd_event_add_defer(3), systemd.service(5)
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 2026-01-16. (At that
time, the date of the most recent commit that was found in the
repository was 2026-01-16.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
systemd 260~devel SD_EVENT...T_ON_IDLE(3)
Pages that refer to this page: systemd.directives(7), systemd.index(7)
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HTML rendering created 2026-01-16 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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