Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/library/std/src/sys/unix/thread_parking/mod.rs b/library/std/src/sys/unix/thread_parking/mod.rs
new file mode 100644
index 000000000..185333c07
--- /dev/null
+++ b/library/std/src/sys/unix/thread_parking/mod.rs
@@ -0,0 +1,32 @@
+//! Thread parking on systems without futex support.
+
+#![cfg(not(any(
+    target_os = "linux",
+    target_os = "android",
+    all(target_os = "emscripten", target_feature = "atomics"),
+    target_os = "freebsd",
+    target_os = "openbsd",
+    target_os = "dragonfly",
+    target_os = "fuchsia",
+)))]
+
+cfg_if::cfg_if! {
+    if #[cfg(all(
+        any(
+            target_os = "macos",
+            target_os = "ios",
+            target_os = "watchos",
+            target_os = "tvos",
+        ),
+        not(miri),
+    ))] {
+        mod darwin;
+        pub use darwin::Parker;
+    } else if #[cfg(target_os = "netbsd")] {
+        mod netbsd;
+        pub use netbsd::{current, park, park_timeout, unpark, ThreadId};
+    } else {
+        mod pthread;
+        pub use pthread::Parker;
+    }
+}