подготовьте сообщение D-Bus к передаче (Prepare a D-Bus message for transmission)
Имя (Name)
sd_bus_message_seal - Prepare a D-Bus message for transmission
Синопсис (Synopsis)
#include <systemd/sd-bus.h>
int sd_bus_message_seal(sd_bus_message *m, uint64_t cookie,
uint64_t timeout_usec);
Описание (Description)
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.
Возвращаемое значение (Return value)
On success, this function returns a non-negative integer. On
failure, it returns a negative errno-style error code.
Errors
Returned errors may indicate the following problems:
-EINVAL
The m parameter is NULL.
-EBADMSG
The D-Bus message m has open containers.
-ENOMSG
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.
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_call(3), sd_bus_call_async(3),
sd_bus_send(3)
