feat: Mark StackSlot as Sync

Since it has no interior mutability it should be safe to share between threads. Signed-off-by: John Nunley <[email protected]>
smol-rs · Feb 25, 2024 · 55d74a5 · 55d74a5
1 parent 3a49a00
commit 55d74a5
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/lib.rs b/src/lib.rs
@@ -84,6 +84,7 @@ mod sys;
 
 mod notify;
 
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 
 use core::borrow::Borrow;
@@ -1365,6 +1366,9 @@ fn __test_send_and_sync() {
     fn _assert_sync<T: Sync>() {}
 
     _assert_send::<crate::__private::StackSlot<'_, ()>>();
+    _assert_sync::<crate::__private::StackSlot<'_, ()>>();
+    _assert_send::<crate::__private::StackListener<'_, '_, ()>>();
+    _assert_sync::<crate::__private::StackListener<'_, '_, ()>>();
     _assert_send::<Event<()>>();
     _assert_sync::<Event<()>>();
     _assert_send::<EventListener<()>>();
@@ -1410,6 +1414,7 @@ pub mod __private {
     impl<T> core::panic::UnwindSafe for StackSlot<'_, T> {}
     impl<T> core::panic::RefUnwindSafe for StackSlot<'_, T> {}
     unsafe impl<T> Send for StackSlot<'_, T> {}
+    unsafe impl<T> Sync for StackSlot<'_, T> {}
 
     impl<'ev, T> StackSlot<'ev, T> {
         /// Create a new `StackSlot` on the stack.