повторно поставить сообщение шины в очередь на соединение с шиной для чтения (Re-enqueue a bus message on a bus connection, for reading)
Имя (Name)
sd_bus_enqueue_for_read - Re-enqueue a bus message on a bus
connection, for reading
Синопсис (Synopsis)
#include <systemd/sd-bus.h>
int sd_bus_enqueue_for_read(sd_bus *bus,
sd_bus_message *message);
Описание (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.
Возвращаемое значение (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.
Примечание (Note)
These APIs are implemented as a shared library, which can be
compiled and linked to with the libsystemd pkg-config(1) file.
Смотри также (See also)
systemd(1), sd-bus(3), sd_bus_send(3),
