sd_bus_message_rewind(3) — Linux manual page

SD_BUS_MESSAGE_REWIND(3)  sd_bus_message_rewind SD_BUS_MESSAGE_REWIND(3)

NAME         top

       sd_bus_message_rewind - Return to beginning of message or current
       container

SYNOPSIS         top

       #include <systemd/sd-bus.h>

       int sd_bus_message_rewind(sd_bus_message *m, int complete);

DESCRIPTION         top

       sd_bus_message_rewind() moves the "read pointer" in the message m
       to either the beginning of the message (if complete is true) or
       to the beginning of the currently open container. If no container
       is open, complete has no effect.

RETURN VALUE         top

       On success, this function returns 0 or a positive integer. The
       value is zero if the current container or whole message in case
       no container is open is empty, and positive otherwise. On
       failure, it returns a negative errno-style error code.

   Errors
       Returned errors may indicate the following problems:

       -EINVAL
           The m parameter is NULL.

       -EPERM
           The message m has not been sealed.

NOTES         top

       These APIs are implemented as a shared library, which can be
       compiled and linked to with the libsystemd pkg-config(1) file.

SEE ALSO         top

       systemd(1), sd-bus(3), sd_bus_message_read(3)

COLOPHON         top

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systemd 249                                     SD_BUS_MESSAGE_REWIND(3)

Pages that refer to this page: sd-bus(3),  sd_bus_message_dump(3)

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