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)
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 2021-04-01. (At that time, the date of the most recent commit that was found in the repository was 2021-04-01.) 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 email@example.com systemd 248 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_set_fd(3), systemd.directives(7), systemd.index(7)