Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 32 insertions, 0 deletions

diff --git a/third_party/rust/fuchsia-zircon/src/event.rs b/third_party/rust/fuchsia-zircon/src/event.rs
new file mode 100644
index 0000000000..533a8aafcc
--- /dev/null
+++ b/third_party/rust/fuchsia-zircon/src/event.rs
@@ -0,0 +1,32 @@
+// Copyright 2017 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+//! Type-safe bindings for Zircon event objects.
+
+use {AsHandleRef, Cookied, HandleBased, Handle, HandleRef, Status};
+use {sys, ok};
+
+/// An object representing a Zircon
+/// [event object](https://fuchsia.googlesource.com/zircon/+/master/docs/objects/event.md).
+///
+/// As essentially a subtype of `Handle`, it can be freely interconverted.
+#[derive(Debug, Eq, PartialEq)]
+pub struct Event(Handle);
+impl_handle_based!(Event);
+impl Cookied for Event {}
+
+impl Event {
+    /// Create an event object, an object which is signalable but nothing else. Wraps the
+    /// [zx_event_create](https://fuchsia.googlesource.com/zircon/+/master/docs/syscalls/event_create.md)
+    /// syscall.
+    pub fn create() -> Result<Event, Status> {
+        let mut out = 0;
+        let opts = 0;
+        let status = unsafe { sys::zx_event_create(opts, &mut out) };
+        ok(status)?;
+        unsafe {
+            Ok(Self::from(Handle::from_raw(out)))
+        }
+    }
+}