Port to nix 0.29 (#109)

Co-authored-by: Matthias Geiger <werdahias@debian.org>

Author: werdahias

Cargo.lock

@@ -37,7 +37,7 @@ input = "0.8"
 libc = "0.2.147"
 evdev-rs = "0.6.1"
 async-std = "1.12.0"
-nix = "0.26.2"
+nix = { version = "0.29", features = ["poll"] }
 blight = "0.7.0"
 anyhow = "1.0.75"
 thiserror = "1.0.49"

Cargo.toml

@@ -11,6 +11,7 @@ use libc::{O_RDONLY, O_RDWR};
 use nix::poll::{poll, PollFd, PollFlags};
 use std::fs::{File, OpenOptions};
 use std::os::fd::AsRawFd;
+use std::os::fd::BorrowedFd;
 use std::os::unix::{fs::OpenOptionsExt, io::OwnedFd};
 use std::path::Path;
 use std::time::Duration;
@@ -57,9 +58,11 @@ fn main() -> Result<(), zbus::Error> {
 	input
 		.udev_assign_seat("seat0")
 		.expect("Could not assign seat0");
-
-	let pollfd = PollFd::new(input.as_raw_fd(), PollFlags::POLLIN);
-	while poll(&mut [pollfd], -1).is_ok() {
+	let fd = input.as_raw_fd();
+	assert!(fd != -1);
+	let borrowed_fd = unsafe { BorrowedFd::borrow_raw(input.as_raw_fd()) };
+	let pollfd = PollFd::new(borrowed_fd, PollFlags::POLLIN);
+	while poll(&mut [pollfd], None::<u8>).is_ok() {
 		event(&mut input, &iface_ref);
 	}