From 35691ef953ff8eb038802b3756f1059887866a05 Mon Sep 17 00:00:00 2001
From: ju6ge <judge@felixrichter.tech>
Date: Sun, 10 May 2026 13:47:26 +0200
Subject: [PATCH] feat: create util module with shared mk_static macro

---
 rust/src/main.rs |  1 +
 rust/src/util.rs | 10 ++++++++++
 2 files changed, 11 insertions(+)
 create mode 100644 rust/src/util.rs

diff --git a/rust/src/main.rs b/rust/src/main.rs
index 859509d..92b21c2 100644
--- a/rust/src/main.rs
+++ b/rust/src/main.rs
@@ -71,6 +71,7 @@ mod mqtt;
 mod network;
 mod plant_state;
 mod tank;
+mod util;
 mod webserver;
 
 extern crate alloc;
diff --git a/rust/src/util.rs b/rust/src/util.rs
new file mode 100644
index 0000000..9241868
--- /dev/null
+++ b/rust/src/util.rs
@@ -0,0 +1,10 @@
+macro_rules! mk_static {
+    ($t:ty,$val:expr) => {{
+        static STATIC_CELL: static_cell::StaticCell<$t> = static_cell::StaticCell::new();
+        #[deny(unused_attributes)]
+        let x = STATIC_CELL.uninit().write(($val));
+        x
+    }};
+}
+
+pub(crate) use mk_static;