1 files changed, 9 insertions, 0 deletions
diff --git a/test_ffi/src/lib.rs b/test_ffi/src/lib.rs
index a5a077950..c91d05e05 100644
--- a/test_ffi/src/lib.rs
+++ b/test_ffi/src/lib.rs
@@ -1,3 +1,6 @@
+use std::thread::sleep;
+use std::time::Duration;
+
 #[no_mangle]
 pub extern "C" fn print_something() {
   println!("something");
@@ -42,3 +45,9 @@ pub extern "C" fn add_f32(a: f32, b: f32) -> f32 {
 pub extern "C" fn add_f64(a: f64, b: f64) -> f64 {
   a + b
 }
+
+#[no_mangle]
+pub extern "C" fn sleep_blocking(ms: u64) {
+  let duration = Duration::from_millis(ms);
+  sleep(duration);
+}