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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON |
SD_BUS_SET_CLOSE_ON_EXIT(3)d_bus_set_close_on_exitD_BUS_SET_CLOSE_ON_EXIT(3)
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 a non-negative
integer. On failure, it returns a negative errno-style error code.
sd_bus_get_close_on_exit() returns 0 if the feature is currently
disabled or a positive integer if it is enabled. On failure, it
returns a negative errno-style error code.
Errors
Returned errors may indicate the following problems:
-ECHILD
The bus connection was created in a different process.
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_flush(3), sd_bus_attach_event(3),
sd-event(3), sd_event_add_exit(3)
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⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩. This
page was obtained from the project's upstream Git repository
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systemd 246 SD_BUS_SET_CLOSE_ON_EXIT(3)
Pages that refer to this page: sd-bus(3) , sd_bus_attach_event(3) , sd_bus_close(3) , sd_bus_default_flush_close(3) , sd_bus_detach_event(3) , sd_bus_flush(3) , sd_bus_get_event(3) , 30-systemd-environment-d-generator(7) , systemd.directives(7) , systemd.index(7)