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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | HISTORY | SEE ALSO | COLOPHON |
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SD_BUS_...SCONNECT(3) sd_bus_set_exit_on_disconnectSD_BUS_...SCONNECT(3)
sd_bus_set_exit_on_disconnect, sd_bus_get_exit_on_disconnect -
Control the exit behavior when the bus object disconnects
#include <systemd/sd-bus.h>
int sd_bus_set_exit_on_disconnect(sd_bus *bus, int b);
int sd_bus_get_exit_on_disconnect(sd_bus *bus);
sd_bus_set_exit_on_disconnect() may be used to configure the exit
behavior when the given bus object disconnects. If b is zero, no
special logic is executed when the bus object disconnects. If b
is non-zero, the behavior on disconnect depends on whether the
bus object is attached to an event loop or not. If the bus object
is attached to an event loop (see sd_bus_attach_event(3)), the
event loop is closed when the bus object disconnects (as if
calling sd_event_exit(3)). Otherwise, exit(3) is called. The exit
code passed to sd_event_exit() and exit() is EXIT_FAILURE. If the
bus object has already disconnected when enabling the exit
behavior, the exit behavior is executed immediately. By default,
the exit behavior is disabled.
sd_bus_get_exit_on_disconnect() returns whether the exit on
disconnect behavior is enabled for the given bus object.
On success, sd_bus_set_exit_on_disconnect() returns a
non-negative integer. On failure, it returns a negative
errno-style error code.
sd_bus_get_exit_on_disconnect() returns a positive integer if the
exit on disconnect behavior is enabled. Otherwise, it returns
zero.
Errors
Returned errors may indicate the following problems:
-EINVAL
A required parameter was NULL.
Added in version 246.
-ENOPKG
The bus object could not be resolved.
Added in version 246.
-ECHILD
The bus connection was created in a different process,
library or module instance.
Added in version 246.
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.
sd_bus_set_exit_on_disconnect() and
sd_bus_get_exit_on_disconnect() were added in version 246.
systemd(1), sd-bus(3), sd_bus_attach_event(3), sd-event(3),
sd_event_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 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2024-06-13.) 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 protected]
systemd 257~devel SD_BUS_...SCONNECT(3)
Pages that refer to this page: sd-bus(3), systemd.directives(7), systemd.index(7)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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