NAME

       sd_bus_message_at_end - Check if a message has been fully read

SYNOPSIS

       #include <systemd/sd-bus.h>

       int sd_bus_message_at_end(sd_bus_message *m, int complete);

DESCRIPTION

       sd_bus_message_at_end() returns whether all data from the currently opened container in m
       or all data from all containers in m has been read. If complete is zero, this function
       returns whether all data from the currently opened container has been read. If complete is
       non-zero, this function returns whether all data from all containers in m has been read.

RETURN VALUE

       If all data from all containers or the current container (depending on the value of
       complete) has been read, sd_bus_message_at_end() returns a positive integer. If there is
       still data left to be read, it returns zero. On failure, it returns a negative errno-style
       error code.

   Errors
       Returned errors may indicate the following problems:

       -EINVAL
           The m parameter is NULL.

           Added in version 246.

       -EPERM
           The message is not sealed.

           Added in version 246.

NOTES

       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.

HISTORY

       sd_bus_message_at_end() was added in version 246.

SEE ALSO

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