1 files changed, 61 insertions, 0 deletions
diff --git a/ctr-std/src/sys/unix/rwlock.rs b/ctr-std/src/sys/unix/rwlock.rs
new file mode 100644
index 0000000..d74b614
--- /dev/null
+++ b/ctr-std/src/sys/unix/rwlock.rs
@@ -0,0 +1,61 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.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.
+
+use super::mutex::Mutex;
+
+pub struct RWLock {
+    mutex: Mutex
+}
+
+unsafe impl Send for RWLock {}
+unsafe impl Sync for RWLock {}
+
+impl RWLock {
+    pub const fn new() -> RWLock {
+        RWLock {
+            mutex: Mutex::new()
+        }
+    }
+
+    #[inline]
+    pub unsafe fn read(&self) {
+        self.mutex.lock();
+    }
+
+    #[inline]
+    pub unsafe fn try_read(&self) -> bool {
+        self.mutex.try_lock()
+    }
+
+    #[inline]
+    pub unsafe fn write(&self) {
+        self.mutex.lock();
+    }
+
+    #[inline]
+    pub unsafe fn try_write(&self) -> bool {
+        self.mutex.try_lock()
+    }
+
+    #[inline]
+    pub unsafe fn read_unlock(&self) {
+        self.mutex.unlock();
+    }
+
+    #[inline]
+    pub unsafe fn write_unlock(&self) {
+        self.mutex.unlock();
+    }
+
+    #[inline]
+    pub unsafe fn destroy(&self) {
+        self.mutex.destroy();
+    }
+}