sd_bus_message_verify_type — Check if the message has specified type at the current location
#include <systemd/sd-bus.h>
int sd_bus_message_verify_type( | sd_bus_message *m, |
char type, | |
const char* contents) ; |
sd_bus_message_verify_type()
checks if the complete type at the
current location in the message m
matches the specified
type
and contents
. If non-zero, parameter
type
must be one of the types specified in
sd_bus_message_append(1).
If non-null, parameter contents
must be a valid sequence of complete
types. If both type
and contents
are specified
type
must be a container type.
If type
is specified, the type in the message must match. If
contents
is specified, the type in the message must be a container type
with this signature.
On success, this call returns true if the type matches and zero if not (the message
m
contains different data or the end of the message has been reached). On
failure, it returns a negative errno-style error code.
Functions described here are available as a shared
library, which can be compiled against and linked to with the
libsystemd
pkg-config(1)
file.
The code described here uses
getenv(3),
which is declared to be not multi-thread-safe. This means that the code calling the functions described
here must not call
setenv(3)
from a parallel thread. It is recommended to only do calls to setenv()
from an early phase of the program when no other threads have been started.