Function notify_socket 

pub fn notify_socket() -> Option<Box<SocketAddr>>

Retrieve notification socket address.

The first call to this function will return the system manager notification socket address as a boxed SocketAddr, as provided through the NOTIFY_SOCKET environment variable, or None if unavailable. Subsequent calls will return None.

The implementation currently supports only UNIX domain sockets, both path‐based and abstract. VSOCK sockets are not supported.

Example

use std::os::unix::net::UnixDatagram;

let notify = UnixDatagram::unbound()?;
notify.connect_addr(&microsd::notify_socket().unwrap())?;

notify.send("READY=1".as_bytes())?;