Wrap ints in tiny types, implement corresponding functions for nice level

examples/make_realtime/main.rs

@@ -1,8 +1,7 @@
 use nix::unistd::gettid;
 use std::thread;
 
-// use rtkit_client_rs::::RTKitProxyBlocking;
-use rtkit_client_rs::{make_current_thread_realtime, Error};
+use rtkit_client_rs::{set_current_thread_priority, Error};
 
 fn main() {
     println!("Main tid: {}", gettid());
@@ -11,10 +10,21 @@ fn main() {
 
 fn important_thread() {
     println!("Important thread tid: {}", gettid());
+
     let requested_priority = 40;
-    let actual_priority = make_current_thread_realtime(Some(requested_priority));
+    let actual_priority = set_current_thread_priority(Some(requested_priority.try_into().unwrap()));
     match actual_priority {
-        Ok(actual_priority) => println!("Requested priority: {requested_priority}, Actual priority: {actual_priority}"),
+        Ok(actual_priority) => println!("Requested priority: {requested_priority}, Actual priority: {}", actual_priority.value()),
+        Err(Error::PermissionDenied) => println!("Permission denied. Do you have polkit rules set up, or otherwise have the necessary permissions?"),
+        Err(e) => println!("Internal zbus error: {e}"),
+    }
+
+    let requested_nice_level = -10;
+    let actual_nice_level = rtkit_client_rs::set_current_thread_nice_level(Some(
+        requested_nice_level.try_into().unwrap(),
+    ));
+    match actual_nice_level {
+        Ok(actual_nice_level) => println!("Requested nice level: {requested_nice_level}, Actual nice level: {}", actual_nice_level.value()),
         Err(Error::PermissionDenied) => println!("Permission denied. Do you have polkit rules set up, or otherwise have the necessary permissions?"),
         Err(e) => println!("Internal zbus error: {e}"),
     }