Unrolled build for rust-lang#128457

rust-timer · web-flow · commit c517c4bdf7c2 · 2024-08-01T00:55:19.000-04:00
Rollup merge of rust-lang#128457 - juntyr:once-lock-docs, r=tgross35 Fix docs for OnceLock::get_mut_or_init Removes an incorrect statment about concurrency from the `OnceLock::get_mut_or_init` (tracked in rust-lang#121641) docs. Fixes rust-lang#128429
diff --git a/library/std/src/sync/once_lock.rs b/library/std/src/sync/once_lock.rs
@@ -309,9 +309,7 @@ impl<T> OnceLock<T> {
     /// Gets the mutable reference of the contents of the cell, initializing
     /// it with `f` if the cell was empty.
     ///
-    /// Many threads may call `get_mut_or_init` concurrently with different
-    /// initializing functions, but it is guaranteed that only one function
-    /// will be executed.
+    /// This method never blocks.
     ///
     /// # Panics
     ///
@@ -401,6 +399,8 @@ impl<T> OnceLock<T> {
     /// it with `f` if the cell was empty. If the cell was empty and `f` failed,
     /// an error is returned.
     ///
+    /// This method never blocks.
+    ///
     /// # Panics
     ///
     /// If `f` panics, the panic is propagated to the caller, and
