all: implement hardware cursors

src/tasks/hardware_cursor.rs

@@ -0,0 +1,31 @@
+use {
+    crate::{state::State, utils::errorfmt::ErrorFmt},
+    futures_util::{select, FutureExt},
+    std::rc::Rc,
+};
+
+pub async fn handle_hardware_cursor_tick(state: Rc<State>) {
+    loop {
+        let cursor = match state.hardware_tick_cursor.pop().await {
+            Some(c) => c,
+            _ => continue,
+        };
+        if !cursor.needs_tick() {
+            continue;
+        }
+        loop {
+            let tick = (cursor.time_until_tick().as_nanos() + 999_999) / 1_000_000;
+            if tick > 0 {
+                let res = select! {
+                    _ = state.hardware_tick_cursor.non_empty().fuse() => break,
+                    res = state.wheel.timeout(tick as _).fuse() => res,
+                };
+                if let Err(e) = res {
+                    log::error!("Could not wait for cursor tick: {}", ErrorFmt(e));
+                    break;
+                }
+            }
+            state.refresh_hardware_cursors();
+        }
+    }
+}