Manpages - sd_bus_can_send.3
Table of Contents
NAME
sd_bus_can_send - Check which types can be sent over a bus object
SYNOPSIS
#include <systemd/sd-bus.h>
void sd_bus_can_send(sd_bus **/bus/, char type);*
DESCRIPTION
sd_bus_can_send() is mostly used for checking if file descriptor passing is available on the given bus. type can be any of the SD_BUS_TYPE constants.
RETURN VALUE
On failure, sd_bus_can_send() returns a negative errno-style error code. If values of the given type can be sent over the given bus, it returns a positive integer. Otherwise, it returns zero.
Errors
Returned errors may indicate the following problems:
-ENOPKG
The bus object bus could not be resolved.
-ENOTCONN
The input parameter bus is NULL or the bus is not connected.
-ECHILD
The bus object bus was 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)