sd_bus_message_copy(3) — Linux manual page

SD_BUS_MESSAGE_COPY(3)     sd_bus_message_copy    SD_BUS_MESSAGE_COPY(3)

NAME         top

       sd_bus_message_copy - Copy the contents of one message to another

SYNOPSIS         top

       #include <systemd/sd-bus.h>

       int sd_bus_message_copy(sd_bus_message *m,
                               sd_bus_message *source, int all);

DESCRIPTION         top

       sd_bus_message_copy() copies the contents from message source to
       m. If all is false, a single complete type is copied (basic or
       container). If all is true, the contents are copied until the end
       of the currently open container or the end of source.

RETURN VALUE         top

       On success, this call returns true if anything was copied, and
       false if there was nothing to copy. On failure, it returns a
       negative errno-style error code.

   Errors
       Returned errors may indicate the following problems:

       -EINVAL
           source or m are NULL.

       -EPERM
           Message m has been sealed or source has not been sealed.

       -ESTALE
           Destination message is in invalid state.

       -ENXIO
           Destination message cannot be appended to.

       -ENOMEM
           Memory allocation failed.

NOTES         top

       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.

SEE ALSO         top

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

COLOPHON         top

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systemd 255                                       SD_BUS_MESSAGE_COPY(3)

Pages that refer to this page: sd-bus(3),  systemd.directives(7),  systemd.index(7)

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