Add the X10 language (http://x10-lang.org/).

samples/X10/Cancellation.x10

@@ -0,0 +1,50 @@
+/*
+ *  This file is part of the X10 project (http://x10-lang.org).
+ *
+ *  This file is licensed to You under the Eclipse Public License (EPL);
+ *  You may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *      http://www.opensource.org/licenses/eclipse-1.0.php
+ *
+ *  (C) Copyright IBM Corporation 2006-2014.
+ */
+
+import x10.xrx.Runtime;
+
+/**
+ * Demonstrate how to instantiate the X10 runtime as an executor service
+ * submit jobs to the runtime, wait jobs to complete and cancel all jobs
+ * 
+ * Compile with: x10c -O -EXECUTOR_MODE=true Cancellation.x10
+ * Run with:     X10_CANCELLABLE=true X10_NPLACES=4 x10 -DX10RT_IMPL=JavaSockets Cancellation
+ */
+class Cancellation {
+    static def job(id:Long, iterations:Long) = ()=>{
+        at (Place.places().next(here)) async {
+            for (i in 1..iterations) {
+                finish for (p in Place.places()) { 
+                    at (p) async Console.OUT.println(here+" says hello (job " + id + ", iteration " + i + ")");
+                }
+                Console.ERR.println();
+                System.sleep(200);
+            }
+        }
+    };
+
+    public static def main(args:Rail[String]):void {
+        val w1 = Runtime.submit(job(1, 5));
+        w1.await(); Console.ERR.println("Job 1 completed\n");
+        val w2 = Runtime.submit(job(2, 1000));
+        System.threadSleep(1000);
+        val c1 = Runtime.cancelAll();
+        try { w2.await(); } catch (e:Exception) { Console.ERR.println("Job 2 aborted with exception " + e +"\n"); }
+        c1.await(); // waiting for cancellation to be processed
+        System.threadSleep(1000);
+        Runtime.submit(job(3, 1000));
+        Runtime.submit(job(4, 1000));
+        System.threadSleep(1000);
+        val c2 = Runtime.cancelAll();
+        c2.await();
+        Console.ERR.println("Goodbye\n");
+    }
+}