# HG changeset patch
# User pconcannon
# Date 1574870494 0
# Node ID 17d242844fc9e7d18b3eac97426490a9c246119e
# Parent  de2896bc018ac33ef451ed5df49b29e33242228b
8233018: Add a new test to verify that DatagramSocket is not interruptible
Summary: Test added to check the interruptability of DatagramSocket, MulticastSocket and DatagramSocketAdaptor.
Reviewed-by: chegar, dfuchs

diff -r de2896bc018a -r 17d242844fc9 test/jdk/java/net/DatagramSocket/InterruptibleDatagramSocket.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/net/DatagramSocket/InterruptibleDatagramSocket.java	Wed Nov 27 16:01:34 2019 +0000
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.net.MulticastSocket;
+import java.net.SocketException;
+import java.net.SocketTimeoutException;
+import java.nio.channels.ClosedByInterruptException;
+import java.nio.channels.DatagramChannel;
+import java.util.concurrent.CountDownLatch;
+
+import static java.lang.Thread.sleep;
+
+/*
+ * @test
+ * @summary Check interrupt mechanism for DatagramSocket,
+ *      MulticastSocket, and DatagramSocketAdaptor
+ */
+
+public class InterruptibleDatagramSocket {
+    private static void test0(DatagramSocket s) throws Exception {
+        CountDownLatch latch = new CountDownLatch(1);
+        Thread testThread = Thread.currentThread();
+
+        Thread coordinator = new Thread(() -> {
+            try {
+                latch.await();
+                sleep(500);
+                testThread.interrupt();
+            } catch (InterruptedException e) {
+            }
+        });
+        byte[] data = {0, 1, 2};
+        DatagramPacket p = new DatagramPacket(data, data.length,
+                s.getLocalAddress(), s.getLocalPort());
+        s.setSoTimeout(2000);
+        coordinator.start();
+        latch.countDown();
+        try {
+            s.receive(p);
+        } finally {
+            try {
+                coordinator.join();
+            } catch (InterruptedException e) {
+            }
+        }
+    }
+
+    static void test(DatagramSocket s, boolean interruptible) throws Exception {
+        try {
+            test0(s);
+            throw new RuntimeException("Receive shouldn't have succeeded");
+        } catch (SocketTimeoutException e) {
+            if (interruptible)
+                throw e;
+            System.out.println("Got expected SocketTimeoutException: " + e);
+        } catch (SocketException e) {
+            if ((e.getCause() instanceof ClosedByInterruptException) && interruptible) {
+                System.out.println("Got expected ClosedByInterruptException: " + e);
+            } else {
+                throw e;
+            }
+        } catch (ClosedByInterruptException e) {
+            if (!interruptible)
+                throw e;
+            System.out.println("Got expected ClosedByInterruptException: " + e);
+        }
+        if (s.isClosed() && !interruptible)
+            throw new RuntimeException("DatagramSocket should not be closed");
+        else if (!s.isClosed() && interruptible)
+            throw new RuntimeException("DatagramSocket should be closed");
+    }
+
+    public static void main(String[] args) throws Exception {
+        try (DatagramSocket s = new DatagramSocket()) {
+            test(s, false);
+        }
+        try (DatagramSocket s = new MulticastSocket()) {
+            test(s, false);
+        }
+        try (DatagramSocket s = DatagramChannel.open().socket()) {
+            test(s, true);
+        }
+    }
+}