diff options
Diffstat (limited to 'rtic-common/src/wait_queue.rs')
| -rw-r--r-- | rtic-common/src/wait_queue.rs | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/rtic-common/src/wait_queue.rs b/rtic-common/src/wait_queue.rs index b1aa775..3056672 100644 --- a/rtic-common/src/wait_queue.rs +++ b/rtic-common/src/wait_queue.rs @@ -1,4 +1,4 @@ -//! ... +//! A wait queue implementation using a doubly linked list. use core::marker::PhantomPinned; use core::pin::Pin; @@ -10,7 +10,10 @@ use critical_section as cs; /// A helper definition of a wait queue. pub type WaitQueue = LinkedList<Waker>; -/// A FIFO linked list for a wait queue. +/// An atomic, doubly linked, FIFO list for a wait queue. +/// +/// Atomicity is guaranteed by short [`critical_section`]s, so this list is _not_ lock free, +/// but it will not deadlock. pub struct LinkedList<T> { head: AtomicPtr<Link<T>>, // UnsafeCell<*mut Link<T>> tail: AtomicPtr<Link<T>>, |