| SD_EVENT_SET_EXIT_ON_IDLE(3) | sd_event_set_exit_on_idle | SD_EVENT_SET_EXIT_ON_IDLE(3) |
.SH "NAME" sd_event_set_exit_on_idle, sd_event_get_exit_on_idle -
Enable event loop exit-on-idle support
.SH "SYNOPSIS"
#include <systemd/sd-event.h>
.HP 720u int
sd_event_set_exit_on_idle(sd_event *event,
int b);
.HP 720u int
sd_event_get_exit_on_idle(sd_event *event);
.SH "DESCRIPTION"
.PP 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.
.PP 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.
.SH "RETURN VALUE"
.PP 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.
.SS "Errors"
.PP Returned errors may indicate the following problems:
.PP -ECHILD
The event loop has been created in a different process, library or module
instance.
.RE
.PP -EINVAL
The passed event loop object was invalid.
.RE
.SH "NOTES"
.PP Functions described here are available as a shared library, which can be
compiled against and linked to with the
libsystemd pkg-config(1) file.
.PP All functions listed here are thread-agnostic and only a single thread
may operate on a given object at any given time. Different threads may
access the same object at different times. Multiple independent objects may
be used from different threads in parallel.
.PP 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.
.SH "HISTORY"
.PP sd_event_set_exit_on_idle() and sd_event_get_exit_on_idle()
were added in version 259.
.SH "SEE ALSO"
.PP 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)
| systemd 262.2 |