[feat][code] proto crate, one stream per request

crates/lanspread-utils/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "lanspread-utils"
+version = "0.1.0"
+edition = "2021"
+
+[lints.rust]
+unsafe_code = "forbid"
+
+[lints.clippy]
+pedantic = { level = "warn", priority = -1 }
+todo = "warn"
+unwrap_used = "warn"
+
+[dependencies]

crates/lanspread-utils/src/lib.rs

@@ -0,0 +1 @@
+pub mod macros;

crates/lanspread-utils/src/macros.rs

@@ -0,0 +1,6 @@
+#[macro_export]
+macro_rules! maybe_addr {
+    ($addr:expr) => {
+        $addr.map_or("<unknown>".to_string(), |addr| addr.to_string())
+    };
+}