1 files changed, 52 insertions, 0 deletions
diff --git a/rustlibd/c_shim.rs b/rustlibd/c_shim.rs
new file mode 100644
index 0000000000..cd59c76c04
--- /dev/null
+++ b/rustlibd/c_shim.rs
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+//
+// September 22 2024, Christian Hopps <chopps@labn.net>
+//
+// Copyright (c) 2024, LabN Consulting, L.L.C.
+//
+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+
+include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
+
+use std::ffi::c_void;
+
+struct ShimGlobals {
+    arg: *mut c_void,
+    runtime: tokio::runtime::Runtime,
+}
+
+#[no_mangle]
+pub extern "C" fn _rust_preinit(daemon: *mut frr_daemon_info) -> *mut c_void {
+    crate::rust_preinit(daemon)
+}
+
+#[no_mangle]
+pub extern "C" fn _rust_init(_master: *mut event_loop, arg: *mut c_void) -> *mut c_void {
+    crate::rust_init(arg)
+}
+
+#[no_mangle]
+pub extern "C" fn _rust_run(_master: *mut event_loop, arg: *mut c_void) -> *mut c_void {
+    let runtime = crate::get_runtime();
+
+    let mut globals = Box::new(ShimGlobals {
+        arg: crate::rust_init(arg),
+        runtime,
+    });
+
+    globals.arg = crate::rust_run(&mut globals.runtime, globals.arg);
+
+    Box::into_raw(globals) as *mut c_void
+}
+
+#[no_mangle]
+pub extern "C" fn _rust_fini(_master: *mut event_loop, arg: *mut c_void) {
+    let globals = unsafe { Box::from_raw(arg as *mut ShimGlobals) };
+
+    crate::rust_fini(globals.arg);
+
+    // Make this explicit, not really needed but makes it clear
+    drop(globals.runtime);
+}