Data commit

Task/Mutex/Wren/mutex.wren

@@ -0,0 +1,14 @@
+foreign class Resource {
+    // obtain a pointer to the resource when available
+    construct new() {}
+
+    // method for using the resource
+    foreign doSomething()
+
+    // signal to the host that the resource is no longer needed
+    foreign release()
+}
+
+var res = Resource.new()  // wait for and obtain a lock on the resource
+res.doSomething()         // use it
+res.release()             // release the lock