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.
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.