1 files changed, 34 insertions, 0 deletions
diff --git a/vendor/tokio/src/loom/std/atomic_u8.rs b/vendor/tokio/src/loom/std/atomic_u8.rs
new file mode 100644
index 000000000..408aea338
--- /dev/null
+++ b/vendor/tokio/src/loom/std/atomic_u8.rs
@@ -0,0 +1,34 @@
+use std::cell::UnsafeCell;
+use std::fmt;
+use std::ops::Deref;
+
+/// `AtomicU8` providing an additional `load_unsync` function.
+pub(crate) struct AtomicU8 {
+    inner: UnsafeCell<std::sync::atomic::AtomicU8>,
+}
+
+unsafe impl Send for AtomicU8 {}
+unsafe impl Sync for AtomicU8 {}
+
+impl AtomicU8 {
+    pub(crate) const fn new(val: u8) -> AtomicU8 {
+        let inner = UnsafeCell::new(std::sync::atomic::AtomicU8::new(val));
+        AtomicU8 { inner }
+    }
+}
+
+impl Deref for AtomicU8 {
+    type Target = std::sync::atomic::AtomicU8;
+
+    fn deref(&self) -> &Self::Target {
+        // safety: it is always safe to access `&self` fns on the inner value as
+        // we never perform unsafe mutations.
+        unsafe { &*self.inner.get() }
+    }
+}
+
+impl fmt::Debug for AtomicU8 {
+    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
+        self.deref().fmt(fmt)
+    }
+}