sd_bus_can_send - Check which types can be sent over a bus object

NAME  SYNOPSIS  DESCRIPTION  RETURN VALUE  Errors  NOTES  SEE ALSO 

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NAME

sd_bus_can_send − Check which types can be sent over a bus object

SYNOPSIS

#include <elogind/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 libelogind pkg-config(1) file.

SEE ALSO

elogind(8), sd-bus(3)

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