Move common data structures to `rtic-common`

1 files changed, 0 insertions, 64 deletions

diff --git a/rtic-channel/src/waker_registration.rs b/rtic-channel/src/waker_registration.rs
deleted file mode 100644
index c30df7f..0000000
--- a/rtic-channel/src/waker_registration.rs
+++ /dev/null
@@ -1,64 +0,0 @@
-use core::cell::UnsafeCell;
-use core::task::Waker;
-
-/// A critical section based waker handler.
-pub struct CriticalSectionWakerRegistration {
-    waker: UnsafeCell<Option<Waker>>,
-}
-
-unsafe impl Send for CriticalSectionWakerRegistration {}
-unsafe impl Sync for CriticalSectionWakerRegistration {}
-
-impl CriticalSectionWakerRegistration {
-    /// Create a new waker registration.
-    pub const fn new() -> Self {
-        Self {
-            waker: UnsafeCell::new(None),
-        }
-    }
-
-    /// Register a waker.
-    /// This will overwrite the previous waker if there was one.
-    pub fn register(&self, new_waker: &Waker) {
-        critical_section::with(|_| {
-            // SAFETY: This access is protected by the critical section.
-            let self_waker = unsafe { &mut *self.waker.get() };
-
-            // From embassy
-            // https://github.com/embassy-rs/embassy/blob/b99533607ceed225dd12ae73aaa9a0d969a7365e/embassy-sync/src/waitqueue/waker.rs#L59-L61
-            match self_waker {
-                // Optimization: If both the old and new Wakers wake the same task, we can simply
-                // keep the old waker, skipping the clone. (In most executor implementations,
-                // cloning a waker is somewhat expensive, comparable to cloning an Arc).
-                Some(ref w2) if (w2.will_wake(new_waker)) => {}
-                _ => {
-                    // clone the new waker and store it
-                    if let Some(old_waker) = core::mem::replace(self_waker, Some(new_waker.clone()))
-                    {
-                        // We had a waker registered for another task. Wake it, so the other task can
-                        // reregister itself if it's still interested.
-                        //
-                        // If two tasks are waiting on the same thing concurrently, this will cause them
-                        // to wake each other in a loop fighting over this WakerRegistration. This wastes
-                        // CPU but things will still work.
-                        //
-                        // If the user wants to have two tasks waiting on the same thing they should use
-                        // a more appropriate primitive that can store multiple wakers.
-                        old_waker.wake()
-                    }
-                }
-            }
-        });
-    }
-
-    /// Wake the waker.
-    pub fn wake(&self) {
-        critical_section::with(|_| {
-            // SAFETY: This access is protected by the critical section.
-            let self_waker = unsafe { &mut *self.waker.get() };
-            if let Some(waker) = self_waker.take() {
-                waker.wake()
-            }
-        });
-    }
-}