feat: added header file for communicating config

sparse-actions/Cargo.toml

@@ -4,3 +4,6 @@ edition = "2021"
 version.workspace = true
 
 [dependencies]
+
+[build-dependencies]
+bindgen = "0.69"

sparse-actions/build.rs

@@ -0,0 +1,15 @@
+use std::{env, path::Path};
+
+fn main() {
+    let out_dir = env::var_os("OUT_DIR").unwrap();
+
+    let dest_bindings = Path::new(&out_dir).join("bindings.rs");
+
+    bindgen::Builder::default()
+        .header("../unix-loader/src/abi.h")
+        .parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
+        .generate()
+        .expect("unable to generate bindings")
+        .write_to_file(dest_bindings)
+        .expect("could not write bidnings");
+}

sparse-actions/src/lib.rs

@@ -1,14 +1,5 @@
-pub fn add(left: u64, right: u64) -> u64 {
-    left + right
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
-    }
+#[allow(dead_code)]
+#[allow(non_camel_case_types)]
+pub mod payload_types {
+    include!(concat!(std::env!("OUT_DIR"), "/bindings.rs"));
 }