/*
* 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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