Provide AtomicWaker if portable-atomic feature is enabled, even if at…

…omic CAS is not available
rust-lang · Oct 26, 2023 · a40204d · a40204d
1 parent 24cca65
commit a40204d
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Showing 3 changed files with 4 additions and 4 deletions.
diff --git a/futures-core/Cargo.toml b/futures-core/Cargo.toml
@@ -21,7 +21,7 @@ unstable = []
 cfg-target-has-atomic = []
 
 [dependencies]
-portable-atomic = { version = "1", default-features = false, optional = true }
+portable-atomic = { version = "1.3", optional = true, default-features = false, features = ["require-cas"] }
 
 [dev-dependencies]
 futures = { path = "../futures" }

diff --git a/futures-core/src/task/__internal/mod.rs b/futures-core/src/task/__internal/mod.rs
@@ -1,4 +1,4 @@
-#[cfg(not(futures_no_atomic_cas))]
+#[cfg(any(not(futures_no_atomic_cas), feature = "portable-atomic"))]
 mod atomic_waker;
-#[cfg(not(futures_no_atomic_cas))]
+#[cfg(any(not(futures_no_atomic_cas), feature = "portable-atomic"))]
 pub use self::atomic_waker::AtomicWaker;
diff --git a/futures-util/src/task/mod.rs b/futures-util/src/task/mod.rs
@@ -30,7 +30,7 @@ pub use futures_task::waker;
 #[cfg(feature = "alloc")]
 pub use futures_task::{waker_ref, WakerRef};
 
-#[cfg(not(futures_no_atomic_cas))]
+#[cfg(any(not(futures_no_atomic_cas), feature = "portable-atomic"))]
 pub use futures_core::task::__internal::AtomicWaker;
 
 mod spawn;