public void open() {
in.addMessageListener(this);
System.out.println(
"Set up a pipe from=" + in.getChannelString() + " to=" + out.getChannelString());
out.send("Set up a pipe from=" + in.getChannelString() + " to=" + out.getChannelString());
in.send("Set up a pipe from this channel to=" + out.getChannelString());
}
@Test
public void testChannelGroupReceive() throws Exception {
final Channel<String> channel1 = newChannel();
final Channel<String> channel2 = newChannel();
final Channel<String> channel3 = newChannel();
final ReceivePortGroup<String> group =
new ReceivePortGroup<String>(channel1, channel2, channel3);
Fiber fib =
new Fiber(
"fiber",
fjPool,
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
String m1 = group.receive();
String m2 = channel2.receive();
assertThat(m1, equalTo("hello"));
assertThat(m2, equalTo("world!"));
}
})
.start();
Thread.sleep(100);
channel3.send("hello");
Thread.sleep(100);
if (policy != OverflowPolicy.BLOCK) {
channel1.send("goodbye"); // TransferChannel will block here
Thread.sleep(100);
}
channel2.send("world!");
fib.join();
}
@Test
public void testBlockingChannelSendingThread() throws Exception {
assumeThat(policy, is(OverflowPolicy.BLOCK));
final Channel<Integer> ch = newChannel();
Fiber<Integer> fib =
new Fiber<Integer>(
fjPool,
new SuspendableCallable<Integer>() {
@Override
public Integer run() throws SuspendExecution, InterruptedException {
int i = 0;
while (ch.receive() != null) {
i++;
Fiber.sleep(50);
}
return i;
}
})
.start();
for (int i = 0; i < 10; i++) ch.send(i);
ch.close();
assertThat(fib.get(), is(10));
}
@Ignore
@Test
public void whenReceiveNotCalledFromOwnerThenThrowException4() throws Exception {
assumeTrue(Debug.isAssertionsEnabled());
final Channel<String> ch = newChannel();
Thread thread =
new Thread(
new Runnable() {
@Override
public void run() {
try {
ch.receive();
} catch (InterruptedException ex) {
throw new AssertionError(ex);
} catch (SuspendExecution e) {
throw new AssertionError(e);
}
}
});
thread.start();
Thread.sleep(100);
ch.send("a message");
boolean thrown = false;
try {
ch.receive();
} catch (Throwable e) {
thrown = true;
}
assertTrue(thrown);
thread.join();
}
@Ignore
@Test
public void whenReceiveNotCalledFromOwnerThenThrowException2() throws Exception {
assumeTrue(Debug.isAssertionsEnabled());
final Channel<String> ch = newChannel();
Fiber fib =
new Fiber(
"fiber",
fjPool,
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
String m = ch.receive();
assertThat(m, equalTo("a message"));
}
})
.start();
Thread.sleep(50);
ch.send("a message");
boolean thrown = false;
try {
ch.receive();
} catch (Throwable e) {
thrown = true;
}
assertTrue(thrown);
fib.join();
}
/** Remove a channel. */
public void removeChannel(String name) {
// get the channel
Channel channel = getChannel(name);
removeChannel(channel);
// close it as soon as the last client leaves
channel.getConfig().setPersistent(false);
channel.send(new ShutdownMessage());
}
@Test
public void testChannelCloseWithSleep() throws Exception {
final Channel<Integer> ch = newChannel();
Fiber fib =
new Fiber(
"fiber",
fjPool,
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
for (int i = 1; i <= 5; i++) {
Integer m = ch.receive();
assertThat(m, equalTo(i));
}
Integer m = ch.receive();
assertThat(m, nullValue());
assertTrue(ch.isClosed());
}
})
.start();
Thread.sleep(50);
ch.send(1);
ch.send(2);
ch.send(3);
ch.send(4);
ch.send(5);
Thread.sleep(50);
ch.close();
ch.send(6);
ch.send(7);
fib.join();
}
private void send(
final Address dest, final int num_msgs, final int num_threads, final double oob_prob)
throws Exception {
if (num_threads <= 0) throw new IllegalArgumentException("number of threads <= 0");
if (num_msgs % num_threads != 0)
throw new IllegalArgumentException(
"number of messages ( "
+ num_msgs
+ ") needs to be divisible by "
+ "the number o threads ("
+ num_threads
+ ")");
if (num_threads > 1) {
final int msgs_per_thread = num_msgs / num_threads;
Thread[] threads = new Thread[num_threads];
final AtomicInteger counter = new AtomicInteger(0);
for (int i = 0; i < threads.length; i++) {
threads[i] =
new Thread() {
public void run() {
for (int j = 0; j < msgs_per_thread; j++) {
Channel sender = Util.tossWeightedCoin(0.5) ? a : b;
boolean oob = Util.tossWeightedCoin(oob_prob);
int num = counter.incrementAndGet();
Message msg = new Message(dest, null, num);
if (oob) msg.setFlag(Message.OOB);
try {
sender.send(msg);
} catch (Exception e) {
e.printStackTrace();
}
}
}
};
threads[i].start();
}
for (int i = 0; i < threads.length; i++) {
threads[i].join(20000);
}
return;
}
for (int i = 0; i < num_msgs; i++) {
Channel sender = Util.tossWeightedCoin(0.5) ? a : b;
boolean oob = Util.tossWeightedCoin(oob_prob);
Message msg = new Message(dest, null, i);
if (oob) msg.setFlag(Message.OOB);
sender.send(msg);
}
}
@Test
public void testChannelGroupReceiveWithTimeout() throws Exception {
final Channel<String> channel1 = newChannel();
final Channel<String> channel2 = newChannel();
final Channel<String> channel3 = newChannel();
final ReceivePortGroup<String> group =
new ReceivePortGroup<String>(channel1, channel2, channel3);
Fiber fib =
new Fiber(
"fiber",
fjPool,
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
String m1 = group.receive();
String m2 = channel2.receive();
String m3 = group.receive(10, TimeUnit.MILLISECONDS);
String m4 = group.receive(200, TimeUnit.MILLISECONDS);
assertThat(m1, equalTo("hello"));
assertThat(m2, equalTo("world!"));
assertThat(m3, nullValue());
assertThat(m4, equalTo("foo"));
}
})
.start();
Thread.sleep(100);
channel3.send("hello");
Thread.sleep(100);
channel2.send("world!");
Thread.sleep(100);
channel1.send("foo");
fib.join();
}
@Test
public void whenChannelOverflowsThrowException() throws Exception {
assumeThat(policy, is(OverflowPolicy.THROW));
assumeThat(mailboxSize, greaterThan(0));
final Channel<Integer> ch = newChannel();
int i = 0;
try {
for (i = 0; i < 10; i++) ch.send(i);
fail();
} catch (QueueCapacityExceededException e) {
System.out.println("i = " + i);
}
}
private static void send(
Channel sender_channel, Address dest, boolean oob, boolean mixed, int num_msgs)
throws Exception {
long seqno = 1;
for (int i = 0; i < num_msgs; i++) {
Message msg = new Message(dest, null, seqno++);
if (mixed) {
if (i % 2 == 0) msg.setFlag(Message.OOB);
} else if (oob) {
msg.setFlag(Message.OOB);
}
sender_channel.send(msg);
}
}
public void receive(Message msg) {
Message reply = new Message(msg.getSrc());
try {
System.out.println(
"-- MySimpleReplier["
+ channel.getAddress()
+ "]: received message from "
+ msg.getSrc());
if (handle_requests) {
System.out.println(", sending reply");
channel.send(reply);
} else System.out.println("\n");
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void deliver(Channel channel, byte[] bytes) {
ByteBuffer buffer = ByteBuffer.allocate(bytes.length);
buffer.put(bytes);
buffer.flip();
int length = buffer.getInt();
byte messageID = buffer.get();
switch (messageID) {
case 0:
byte[] deliver_array = new byte[length - 9];
int sender_id = buffer.getInt();
int lamport_timestamp = buffer.getInt();
buffer.get(deliver_array, 0, deliver_array.length);
/*for (int i = 0; i < deliver_array.length; i++) {
System.out.print(deliver_array[i] + " ");
}*/
System.out.println("\n" + "---------------------------------------------------");
break;
case 3:
sender_id = buffer.getInt();
lamport_timestamp = buffer.getInt();
/*Si on est à l'origine du BroadcastJoin, on envoie d'abord la liste des autres peers avant de nous même se bloquer*/
if (engine.getId() == sender_id) {
engine.setTimestamp(engine.getTimestamp() + 1);
Message m =
new MemberListMessage(engine.getTimestamp(), engine.getId(), engine.getPeersList());
byte[] message_array = m.sendMessage();
for (Channel other_channel : engine.getChannelList()) {
if (((NioChannel) other_channel).isNouveauvenu()) {
other_channel.send(message_array, 0, message_array.length);
((NioChannel) other_channel).setNouveauvenu(false);
}
}
}
((NioChannel) channel).setBlocked(true);
break;
}
}
@Test
public void sendMessageFromThreadToFiber() throws Exception {
final Channel<String> ch = newChannel();
Fiber fib =
new Fiber(
"fiber",
fjPool,
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
String m = ch.receive();
assertThat(m, equalTo("a message"));
}
})
.start();
Thread.sleep(50);
ch.send("a message");
fib.join();
}
public void revieved(Channel c, String message) {
// out.send("<"+c+"> "+message);
out.send(message);
}
