Merge pull request #5100 from bugadani/fallible-from-waker2

executor: Add fallible from_waker getter

1 files changed, 6 insertions, 0 deletions

diff --git a/embassy-executor/src/raw/mod.rs b/embassy-executor/src/raw/mod.rs
index ab845ed3b..2b7560de6 100644
--- a/embassy-executor/src/raw/mod.rs
+++ b/embassy-executor/src/raw/mod.rs
@@ -49,6 +49,7 @@ use self::run_queue::{RunQueue, RunQueueItem};
 use self::state::State;
 use self::util::{SyncUnsafeCell, UninitCell};
 pub use self::waker::task_from_waker;
+use self::waker::try_task_from_waker;
 use super::SpawnToken;
 use crate::{Metadata, SpawnError};
 
@@ -57,6 +58,11 @@ extern "Rust" fn __embassy_time_queue_item_from_waker(waker: &Waker) -> &'static
     unsafe { task_from_waker(waker).timer_queue_item() }
 }
 
+#[unsafe(no_mangle)]
+extern "Rust" fn __try_embassy_time_queue_item_from_waker(waker: &Waker) -> Option<&'static mut TimerQueueItem> {
+    unsafe { try_task_from_waker(waker).map(|task| task.timer_queue_item()) }
+}
+
 /// Raw task header for use in task pointers.
 ///
 /// A task can be in one of the following states: