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Fix unsoundness in Forever

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This commit is contained in:
Dario Nieuwenhuis 2020-11-16 01:04:56 +01:00
parent 2e062f5627
commit 49d5121094
1 changed files with 2 additions and 2 deletions
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4
embassy/src/util/forever.rs
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@ -18,7 +18,7 @@ impl<T> Forever<T> {
} }
} }
pub fn put(&self, val: T) -> &'static mut T { pub fn put(&'static self, val: T) -> &'static mut T {
if self.used.compare_and_swap(false, true, Ordering::SeqCst) { if self.used.compare_and_swap(false, true, Ordering::SeqCst) {
panic!("Forever.put() called multiple times"); panic!("Forever.put() called multiple times");
} }
@ -31,7 +31,7 @@ impl<T> Forever<T> {
} }
} }
pub unsafe fn steal(&self) -> &'static mut T { pub unsafe fn steal(&'static self) -> &'static mut T {
let p = self.t.get(); let p = self.t.get();
let p = (&mut *p).as_mut_ptr(); let p = (&mut *p).as_mut_ptr();
&mut *p &mut *p