297 lines
11 KiB
Java
Executable File
297 lines
11 KiB
Java
Executable File
/* Copyright (c) 2008, Nathan Sweet
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
|
|
* - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided with the distribution.
|
|
* - Neither the name of Esoteric Software nor the names of its contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
|
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
|
* SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
import static org.junit.Assert.assertEquals;
|
|
|
|
import java.io.IOException;
|
|
import java.util.concurrent.CountDownLatch;
|
|
import java.util.concurrent.TimeUnit;
|
|
import java.util.concurrent.atomic.AtomicInteger;
|
|
import java.util.concurrent.atomic.AtomicReference;
|
|
|
|
import org.junit.Test;
|
|
import org.slf4j.Logger;
|
|
import org.slf4j.LoggerFactory;
|
|
|
|
import dorkbox.network.connection.Connection;
|
|
import dorkbox.network.connection.Listener;
|
|
import dorkbox.network.connection.Listeners;
|
|
import dorkbox.util.exceptions.SecurityException;
|
|
|
|
// NOTE: UDP is unreliable, EVEN ON LOOPBACK! So this can fail with UDP. TCP will never fail.
|
|
public
|
|
class ReconnectTest extends BaseTest {
|
|
private final AtomicInteger receivedCount = new AtomicInteger(0);
|
|
|
|
private static final Logger logger = LoggerFactory.getLogger(ReconnectTest.class.getSimpleName());
|
|
|
|
@Test
|
|
public
|
|
void socketReuseUDP() throws IOException, SecurityException {
|
|
socketReuse(false, true);
|
|
}
|
|
|
|
@Test
|
|
public
|
|
void socketReuseTCP() throws IOException, SecurityException {
|
|
socketReuse(true, false);
|
|
}
|
|
|
|
@Test
|
|
public
|
|
void socketReuseTCPUDP() throws IOException, SecurityException {
|
|
socketReuse(true, true);
|
|
}
|
|
|
|
private
|
|
void socketReuse(final boolean useTCP, final boolean useUDP) throws SecurityException, IOException {
|
|
receivedCount.set(0);
|
|
|
|
Configuration configuration = new Configuration();
|
|
configuration.host = host;
|
|
|
|
if (useTCP) {
|
|
configuration.tcpPort = tcpPort;
|
|
}
|
|
|
|
if (useUDP) {
|
|
configuration.udpPort = udpPort;
|
|
}
|
|
|
|
AtomicReference<CountDownLatch> latch = new AtomicReference<CountDownLatch>();
|
|
|
|
|
|
Server server = new Server(configuration);
|
|
addEndPoint(server);
|
|
final Listeners listeners = server.listeners();
|
|
listeners.add(new Listener.OnConnected<Connection>() {
|
|
@Override
|
|
public
|
|
void connected(Connection connection) {
|
|
if (useTCP) {
|
|
connection.send()
|
|
.TCP("-- TCP from server");
|
|
}
|
|
if (useUDP) {
|
|
connection.send()
|
|
.UDP("-- UDP from server");
|
|
}
|
|
}
|
|
});
|
|
listeners.add(new Listener.OnMessageReceived<Connection, String>() {
|
|
@Override
|
|
public
|
|
void received(Connection connection, String object) {
|
|
int incrementAndGet = ReconnectTest.this.receivedCount.incrementAndGet();
|
|
logger.error("----- <S " + connection + "> " + incrementAndGet + " : " + object);
|
|
|
|
latch.get().countDown();
|
|
}
|
|
});
|
|
server.bind(false);
|
|
|
|
|
|
// ----
|
|
|
|
Client client = new Client(configuration);
|
|
addEndPoint(client);
|
|
final Listeners listeners1 = client.listeners();
|
|
listeners1.add(new Listener.OnConnected<Connection>() {
|
|
@Override
|
|
public
|
|
void connected(Connection connection) {
|
|
if (useTCP) {
|
|
connection.send()
|
|
.TCP("-- TCP from client");
|
|
}
|
|
if (useUDP) {
|
|
connection.send()
|
|
.UDP("-- UDP from client");
|
|
}
|
|
}
|
|
});
|
|
listeners1.add(new Listener.OnMessageReceived<Connection, String>() {
|
|
@Override
|
|
public
|
|
void received(Connection connection, String object) {
|
|
int incrementAndGet = ReconnectTest.this.receivedCount.incrementAndGet();
|
|
logger.error("----- <C " + connection + "> " + incrementAndGet + " : " + object);
|
|
|
|
latch.get().countDown();
|
|
}
|
|
});
|
|
|
|
|
|
|
|
int latchCount = 2;
|
|
int count = 100;
|
|
int initialCount = 2;
|
|
if (useTCP && useUDP) {
|
|
initialCount += 2;
|
|
latchCount += 2;
|
|
}
|
|
|
|
|
|
try {
|
|
for (int i = 1; i < count + 1; i++) {
|
|
logger.error(".....");
|
|
latch.set(new CountDownLatch(latchCount));
|
|
|
|
try {
|
|
client.connect(5000);
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
|
|
int retryCount = 20;
|
|
int lastRetryCount;
|
|
|
|
int target = i * initialCount;
|
|
boolean failed = false;
|
|
|
|
synchronized (receivedCount) {
|
|
while (this.receivedCount.get() != target) {
|
|
lastRetryCount = this.receivedCount.get();
|
|
|
|
try {
|
|
latch.get().await(1, TimeUnit.SECONDS);
|
|
} catch (InterruptedException e) {
|
|
e.printStackTrace();
|
|
}
|
|
|
|
// check to see if we changed at all...
|
|
if (lastRetryCount == this.receivedCount.get()) {
|
|
if (retryCount-- < 0) {
|
|
logger.error("Aborting unit test... wrong count!");
|
|
if (useUDP) {
|
|
// If TCP and UDP both fill the pipe, THERE WILL BE FRAGMENTATION and dropped UDP packets!
|
|
// it results in severe UDP packet loss and contention.
|
|
//
|
|
// http://www.isoc.org/INET97/proceedings/F3/F3_1.HTM
|
|
// also, a google search on just "INET97/proceedings/F3/F3_1.HTM" turns up interesting problems.
|
|
// Usually it's with ISPs.
|
|
|
|
logger.error("NOTE: UDP can fail, even on loopback! See: http://www.isoc.org/INET97/proceedings/F3/F3_1.HTM");
|
|
}
|
|
failed = true;
|
|
break;
|
|
}
|
|
} else {
|
|
retryCount = 20;
|
|
}
|
|
}
|
|
}
|
|
|
|
client.close();
|
|
logger.error(".....");
|
|
|
|
if (failed) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
int specified = count * initialCount;
|
|
int received = this.receivedCount.get();
|
|
|
|
if (specified != received) {
|
|
logger.error("NOTE: UDP can fail, even on loopback! See: http://www.isoc.org/INET97/proceedings/F3/F3_1.HTM");
|
|
}
|
|
|
|
assertEquals(specified, received);
|
|
} finally {
|
|
stopEndPoints();
|
|
waitForThreads(10);
|
|
}
|
|
}
|
|
|
|
@Test
|
|
public
|
|
void localReuse() throws SecurityException, IOException {
|
|
receivedCount.set(0);
|
|
|
|
Server server = new Server();
|
|
addEndPoint(server);
|
|
server.listeners()
|
|
.add(new Listener.OnConnected<Connection>() {
|
|
@Override
|
|
public
|
|
void connected(Connection connection) {
|
|
connection.send()
|
|
.self("-- LOCAL from server");
|
|
}
|
|
});
|
|
server.listeners()
|
|
.add(new Listener.OnMessageReceived<Connection, String>() {
|
|
@Override
|
|
public
|
|
void received(Connection connection, String object) {
|
|
int incrementAndGet = ReconnectTest.this.receivedCount.incrementAndGet();
|
|
System.out.println("----- <S " + connection + "> " + incrementAndGet + " : " + object);
|
|
}
|
|
});
|
|
|
|
// ----
|
|
|
|
Client client = new Client();
|
|
addEndPoint(client);
|
|
client.listeners()
|
|
.add(new Listener.OnConnected<Connection>() {
|
|
@Override
|
|
public
|
|
void connected(Connection connection) {
|
|
connection.send()
|
|
.self("-- LOCAL from client");
|
|
}
|
|
});
|
|
|
|
client.listeners()
|
|
.add(new Listener.OnMessageReceived<Connection, String>() {
|
|
@Override
|
|
public
|
|
void received(Connection connection, String object) {
|
|
int incrementAndGet = ReconnectTest.this.receivedCount.incrementAndGet();
|
|
System.out.println("----- <C " + connection + "> " + incrementAndGet + " : " + object);
|
|
}
|
|
});
|
|
|
|
server.bind(false);
|
|
int count = 10;
|
|
for (int i = 1; i < count + 1; i++) {
|
|
client.connect(5000);
|
|
|
|
int target = i * 2;
|
|
while (this.receivedCount.get() != target) {
|
|
System.out.println("----- Waiting...");
|
|
try {
|
|
Thread.sleep(100);
|
|
} catch (InterruptedException ignored) {
|
|
}
|
|
}
|
|
|
|
client.close();
|
|
}
|
|
|
|
assertEquals(count * 2, this.receivedCount.get());
|
|
|
|
stopEndPoints();
|
|
waitForThreads(10);
|
|
}
|
|
}
|