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/*
* 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.
*/
/*
* @test
* @requires (os.family == "linux" | os.family == "mac")
* @run testng AsyncShutdown
* @summary Test shutdownInput/shutdownOutput with threads blocked in read/write
*/
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketTimeoutException;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
@Test
public class AsyncShutdown {
public void testShutdownInput1() throws IOException {
withConnection((s1, s2) -> {
scheduleShutdownInput(s1, 2000);
int n = s1.getInputStream().read();
assertTrue(n == -1);
});
}
public void testShutdownInput2() throws IOException {
withConnection((s1, s2) -> {
scheduleShutdownInput(s1, 2000);
s1.setSoTimeout(30*1000);
int n = s1.getInputStream().read();
assertTrue(n == -1);
});
}
public void testShutdownOutput1() throws IOException {
withConnection((s1, s2) -> {
scheduleShutdownOutput(s1, 2000);
byte[] data = new byte[128*1024];
try {
while (true) {
s1.getOutputStream().write(data);
}
} catch (IOException expected) { }
});
}
public void testShutdownOutput2() throws IOException {
withConnection((s1, s2) -> {
s1.setSoTimeout(100);
try {
s1.getInputStream().read();
assertTrue(false);
} catch (SocketTimeoutException e) { }
scheduleShutdownOutput(s1, 2000);
byte[] data = new byte[128*1024];
try {
while (true) {
s1.getOutputStream().write(data);
}
} catch (IOException expected) { }
});
}
static void scheduleShutdownInput(Socket s, long delay) {
schedule(() -> {
try {
s.shutdownInput();
} catch (IOException ioe) { }
}, delay);
}
static void scheduleShutdownOutput(Socket s, long delay) {
schedule(() -> {
try {
s.shutdownOutput();
} catch (IOException ioe) { }
}, delay);
}
static void schedule(Runnable task, long delay) {
ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
try {
executor.schedule(task, delay, TimeUnit.MILLISECONDS);
} finally {
executor.shutdown();
}
}
interface ThrowingBiConsumer<T, U> {
void accept(T t, U u) throws IOException;
}
static void withConnection(ThrowingBiConsumer<Socket, Socket> consumer)
throws IOException
{
Socket s1 = null;
Socket s2 = null;
try (ServerSocket ss = createBoundServer()) {
s1 = new Socket();
s1.connect(ss.getLocalSocketAddress());
s2 = ss.accept();
consumer.accept(s1, s2);
} finally {
if (s1 != null) s1.close();
if (s2 != null) s2.close();
}
}
static ServerSocket createBoundServer() throws IOException {
ServerSocket ss = new ServerSocket();
InetAddress loopback = InetAddress.getLoopbackAddress();
InetSocketAddress address = new InetSocketAddress(loopback, 0);
ss.bind(address);
return ss;
}
}
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