Provided by: libsystemd-dev_245.4-4ubuntu3.24_amd64 

NAME
sd_bus_enqueue_for_read - Re-enqueue a bus message on a bus connection, for reading.
SYNOPSIS
#include <systemd/sd-bus.h>
int sd_bus_enqueue_for_read(sd_bus *bus, sd_bus_message *message);
DESCRIPTION
sd_bus_enqueue_for_read() may be used to re-enqueue an incoming bus message on the local read queue, so
that it is processed and dispatched locally again, similar to how an incoming message from the peer is
processed. Takes a bus connection object and the message to enqueue. A reference is taken of the message
and the caller's reference thus remains in possession of the caller. The message is enqueued at the end
of the queue, thus will be dispatched after all other already queued messages are dispatched.
This call is primarily useful for dealing with incoming method calls that may be processed only after an
additional asynchronous operation completes. One example are PolicyKit authorization requests that are
determined to be necessary to authorize a newly incoming method call: when the PolicyKit response is
received the original method call may be re-enqueued to process it again, this time with the
authorization result known.
RETURN VALUE
On success, this function return 0 or a positive integer. On failure, it returns a negative errno-style
error code.
Errors
Returned errors may indicate the following problems:
-ECHILD
The bus connection has been created in a different process.
NOTES
These APIs are implemented as a shared library, which can be compiled and linked to with the
libsystemd pkg-config(1) file.
SEE ALSO
systemd(1), sd-bus(3), sd_bus_send(3),
systemd 245 SD_BUS_ENQUEUE_FOR_READ(3)