1 files changed, 54 insertions, 0 deletions
diff --git a/vendor/parking_lot_core-0.8.6/src/thread_parker/wasm.rs b/vendor/parking_lot_core-0.8.6/src/thread_parker/wasm.rs
new file mode 100644
index 000000000..ba4118c01
--- /dev/null
+++ b/vendor/parking_lot_core-0.8.6/src/thread_parker/wasm.rs
@@ -0,0 +1,54 @@
+// Copyright 2016 Amanieu d'Antras
+//
+// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
+// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
+// http://opensource.org/licenses/MIT>, at your option. This file may not be
+// copied, modified, or distributed except according to those terms.
+
+//! The wasm platform can't park when atomic support is not available.
+//! So this ThreadParker just panics on any attempt to park.
+
+use instant::Instant;
+use std::thread;
+
+pub struct ThreadParker(());
+
+impl super::ThreadParkerT for ThreadParker {
+    type UnparkHandle = UnparkHandle;
+
+    const IS_CHEAP_TO_CONSTRUCT: bool = true;
+
+    fn new() -> ThreadParker {
+        ThreadParker(())
+    }
+
+    unsafe fn prepare_park(&self) {
+        panic!("Parking not supported on this platform");
+    }
+
+    unsafe fn timed_out(&self) -> bool {
+        panic!("Parking not supported on this platform");
+    }
+
+    unsafe fn park(&self) {
+        panic!("Parking not supported on this platform");
+    }
+
+    unsafe fn park_until(&self, _timeout: Instant) -> bool {
+        panic!("Parking not supported on this platform");
+    }
+
+    unsafe fn unpark_lock(&self) -> UnparkHandle {
+        panic!("Parking not supported on this platform");
+    }
+}
+
+pub struct UnparkHandle(());
+
+impl super::UnparkHandleT for UnparkHandle {
+    unsafe fn unpark(self) {}
+}
+
+pub fn thread_yield() {
+    thread::yield_now();
+}