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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | HISTORY | SEE ALSO | COLOPHON |
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SD_BUS_...TIMEOUT(3) sd_bus_set_method_call_timeout SD_BUS_...TIMEOUT(3)
sd_bus_set_method_call_timeout, sd_bus_get_method_call_timeout -
Set or query the default D-Bus method call timeout of a bus object
#include <systemd/sd-bus.h>
int sd_bus_set_method_call_timeout(sd_bus *bus, uint64_t usec);
int sd_bus_get_method_call_timeout(sd_bus *bus, uint64_t *ret);
sd_bus_set_method_call_timeout() sets the default D-Bus method
call timeout of bus to usec microseconds.
sd_bus_get_method_call_timeout() queries the default D-Bus method
call timeout of bus. If no method call timeout was set using
sd_bus_set_method_call_timeout(), the timeout is read from the
$SYSTEMD_BUS_TIMEOUT environment variable. If this environment
variable is unset or does not contain a valid timeout, the
implementation falls back to a predefined method call timeout of
25 seconds. Note that $SYSTEMD_BUS_TIMEOUT is read once and cached
so callers should not rely on being able to change the default
method call timeout at runtime by changing the value of
$SYSTEMD_BUS_TIMEOUT. Instead, call
sd_bus_set_method_call_timeout() to change the default method call
timeout.
On success, these functions return a non-negative integer. On
failure, they return a negative errno-style error code.
Errors
Returned errors may indicate the following problems:
-EINVAL
The parameters bus or ret are NULL.
Added in version 246.
-ENOPKG
Bus object bus could not be resolved.
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.
All functions listed here are thread-agnostic and only a single
thread may operate on a given object at any given time. Different
threads may access the same object at different times. Multiple
independent objects may be used from different threads in
parallel.
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_method_call_timeout() and
sd_bus_get_method_call_timeout() were added in version 246.
systemd(1), sd-bus(3), sd_bus_call(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 2026-08-04. (At that
time, the date of the most recent commit that was found in the
repository was 2026-08-03.) 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
man-pages@man7.org
systemd 262~devel SD_BUS_...TIMEOUT(3)
Pages that refer to this page: sd-bus(3), sd_bus_call(3), systemd.directives(7), systemd.index(7)
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HTML rendering created 2026-09-09 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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