From 3050fc0591f087a4fbe08840c69633e89d3f58a7 Mon Sep 17 00:00:00 2001 From: Emil Fresk Date: Sat, 28 Jan 2023 13:21:44 +0100 Subject: Use `Pin` in the linked lists --- rtic-time/src/linked_list.rs | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'rtic-time/src/linked_list.rs') diff --git a/rtic-time/src/linked_list.rs b/rtic-time/src/linked_list.rs index 52a955b..de5ea2a 100644 --- a/rtic-time/src/linked_list.rs +++ b/rtic-time/src/linked_list.rs @@ -1,6 +1,7 @@ //! ... use core::marker::PhantomPinned; +use core::pin::Pin; use core::sync::atomic::{AtomicPtr, Ordering}; use critical_section as cs; @@ -92,8 +93,10 @@ impl LinkedList { /// Insert a new link into the linked list. /// The return is (was_empty, address), where the address of the link is for use with `delete`. - pub fn insert(&self, val: &mut Link) -> (bool, usize) { + pub fn insert(&self, val: Pin<&mut Link>) -> (bool, usize) { cs::with(|_| { + // SAFETY: This datastructure does not move the underlying value. + let val = unsafe { val.get_unchecked_mut() }; let addr = val as *const _ as usize; // Make sure all previous writes are visible -- cgit v1.2.3