sd_bus_set_close_on_exit, sd_bus_get_close_on_exit — Control whether to close the bus connection during the event loop exit phase
#include <systemd/sd-bus.h>
int sd_bus_set_close_on_exit( | sd_bus *bus, |
int b) ; |
int sd_bus_get_close_on_exit( | sd_bus *bus) ; |
sd_bus_set_close_on_exit()
may be used to enable or disable whether the bus connection
is automatically flushed (as in
sd_bus_flush(3)) and closed (as in
sd_bus_close(3)) during the exit
phase of the event loop. This logic only applies to bus connections that are attached to an
sd-event(3) event loop, see
sd_bus_attach_event(3). By default
this mechanism is enabled and makes sure that any pending messages that have not been written to the bus connection
are written out when the event loop is shutting down. In some cases this behaviour is not desirable, for example
when the bus connection shall remain usable until after the event loop exited. If b
is
true, the feature is enabled (which is the default), otherwise disabled.
sd_bus_get_close_on_exit()
may be used to query the current setting of this feature. It
returns zero when the feature is disabled, and positive if enabled.
On success, sd_bus_set_close_on_exit()
returns 0 or a positive integer. On failure, it returns a negative errno-style
error code.
sd_bus_get_close_on_exit()
returns 0 if the feature is currently turned off or a
positive integer if it is on. On failure, it returns a negative errno-style error code.
These APIs are implemented as a shared
library, which can be compiled and linked to with the
libsystemd
pkg-config(1)
file.