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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON |
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SD_BUS_R...D_RETURN(3) sd_bus_reply_method_return SD_BUS_R...D_RETURN(3)
sd_bus_reply_method_return, sd_bus_reply_method_returnv - Reply to
a D-Bus method call
#include <systemd/sd-bus.h>
int sd_bus_reply_method_return(sd_bus_message *call,
const char *types, ...);
int sd_bus_reply_method_returnv(sd_bus_message *call,
const char *types, va_list ap);
sd_bus_reply_method_return() sends a reply to the call message.
The type string types and the arguments that follow it must adhere
to the format described in sd_bus_message_append(3). If no reply
is expected to call, this function succeeds without sending a
reply.
On success, this function returns a non-negative integer. On
failure, it returns a negative errno-style error code.
Errors
Returned errors may indicate the following problems:
-EINVAL
The input parameter call is NULL.
Message call is not a method call message.
Message call is not attached to a bus.
Message m is not a method reply message.
Added in version 246.
-EPERM
Message call has been sealed.
Added in version 246.
-ENOTCONN
The bus to which message call is attached is not connected.
Added in version 246.
-ENOMEM
Memory allocation failed.
Added in version 246.
In addition, any error returned by sd_bus_send(3) may be returned.
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.
systemd(1), sd-bus(3), sd_bus_message_new_method_return(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 2025-08-11. (At that
time, the date of the most recent commit that was found in the
repository was 2025-08-11.) 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 258~rc2 SD_BUS_R...D_RETURN(3)
Pages that refer to this page: sd-bus(3), sd_bus_add_object(3), sd_bus_send(3), systemd.directives(7), systemd.index(7)
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HTML rendering created 2025-09-06 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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