sd_bus_message_seal

systemd

sd_bus_message_seal

Prepare a D-Bus message for transmission

#include <systemd/sd-bus.h>

int

sd_bus_message_seal

sd_bus_message *

uint64_t

timeout_usec

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 is 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

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.

History

sd_bus_message_seal() was added in version 246.