--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/nio/channels/Selector/WakeupNow.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/* @test
+ * @bug 4940372
+ * @summary Ensure that the wakeup state is cleared by selectNow()
+ */
+
+import java.nio.channels.*;
+
+public class WakeupNow {
+
+ public static void main(String[] args) throws Exception {
+ test1();
+ test2();
+ }
+
+ // Test if selectNow clears wakeup with the wakeup fd and
+ // another fd in the selector.
+ // This fails before the fix on Linux
+ private static void test1() throws Exception {
+ Selector sel = Selector.open();
+ Pipe p = Pipe.open();
+ p.source().configureBlocking(false);
+ p.source().register(sel, SelectionKey.OP_READ);
+ sel.wakeup();
+ // ensure wakeup is consumed by selectNow
+ Thread.sleep(2000);
+ sel.selectNow();
+ long startTime = System.currentTimeMillis();
+ int n = sel.select(2000);
+ long endTime = System.currentTimeMillis();
+ p.source().close();
+ p.sink().close();
+ sel.close();
+ if (endTime - startTime < 1000)
+ throw new RuntimeException("test failed");
+ }
+
+ // Test if selectNow clears wakeup with only the wakeup fd
+ // in the selector.
+ // This fails before the fix on Solaris
+ private static void test2() throws Exception {
+ Selector sel = Selector.open();
+ Pipe p = Pipe.open();
+ p.source().configureBlocking(false);
+ sel.wakeup();
+ // ensure wakeup is consumed by selectNow
+ Thread.sleep(2000);
+ sel.selectNow();
+ long startTime = System.currentTimeMillis();
+ int n = sel.select(2000);
+ long endTime = System.currentTimeMillis();
+ sel.close();
+ if (endTime - startTime < 1000)
+ throw new RuntimeException("test failed");
+ }
+
+}