sd_bus_message_seal(3) — Linux manual page


SD_BUS_MESSAGE_SEAL(3)       sd_bus_message_seal      SD_BUS_MESSAGE_SEAL(3)

NAME         top

       sd_bus_message_seal - Prepare a D-Bus message for transmission

SYNOPSIS         top

       #include <systemd/sd-bus.h>

       int sd_bus_message_seal(sd_bus_message *m, uint64_t cookie,
                               uint64_t timeout_usec);

DESCRIPTION         top

       sd_bus_message_seal() finishes the message m and prepares it for
       transmission using sd_bus_send(3).  cookie specifies the identifier
       used to match the message reply to its corresponding request.
       timeout_usec specifies the maximum time in microseconds to wait for a
       reply to arrive.

       Note that in most scenarios, it's not necessary to call this function
       directly.  sd_bus_call(3), sd_bus_call_async(3) and sd_bus_send(3)
       will seal any given messages if they have not been sealed yet.

RETURN VALUE         top

       On success, this function returns a non-negative integer. On failure,
       it returns a negative errno-style error code.

       Returned errors may indicate the following problems:

           The m parameter is NULL.

           The D-Bus message m has open containers.

           The D-Bus message m is a reply but its type signature does not
           match the return type signature of its corresponding member in
           the object vtable.

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_call(3), sd_bus_call_async(3),

COLOPHON         top

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systemd 245                                           SD_BUS_MESSAGE_SEAL(3)

Pages that refer to this page: sd-bus(3)30-systemd-environment-d-generator(7)systemd.directives(7)systemd.index(7)