Examples with FCSubscriber org.nustaq.fastcast.api.FCSubscriber used on opensource projects

Example 1 with FCSubscriber

use of org.nustaq.fastcast.api.FCSubscriber in project fast-cast by RuedigerMoeller.

the class FCPing method runPingClientSync.

// CO !
public void runPingClientSync() throws InterruptedException {
    final FastCast fc = initFC("pclie", "pingponglat.kson");
    final FCPublisher pingserver = fc.onTransport("ping").publish(fc.getPublisherConf("pingtopic"));
    final Executor ex = Executors.newSingleThreadExecutor();
    final AtomicInteger await = new AtomicInteger(0);
    fc.onTransport(PING_BACK_ON_SAME_TOPIC ? "ping" : "pong").subscribe(fc.getSubscriberConf("pongtopic"), new FCSubscriber() {

        String pongName;

        @Override
        public void messageReceived(String sender, long sequence, Bytez b, long off, int len) {
            await.decrementAndGet();
        }

        @Override
        public boolean dropped() {
            // reset
            await.set(0);
            System.out.println("Drop and Reset counter !");
            return true;
        }

        @Override
        public void senderTerminated(String senderNodeId) {
            System.out.println(senderNodeId + " terminated");
        }

        @Override
        public void senderBootstrapped(String receivesFrom, long seqNo) {
            System.out.println("bootstrap " + receivesFrom);
            pongName = receivesFrom;
        }
    });
    // just create a byte[] for each struct (*)
    FSTStructAllocator alloc = new FSTStructAllocator(0);
    PingRequest pr = alloc.newStruct(new PingRequest());
    Histogram histo = new Histogram(TimeUnit.SECONDS.toNanos(10), 3);
    // wait for at least one heartbeat
    Thread.sleep(1000);
    System.out.println("starting ping pong " + randomId);
    System.gc();
    pr.setNanoSendTime(randomId);
    Sleeper sl = new Sleeper();
    while (true) {
        await.set(0);
        for (int i = 0; i < NUM_MSG; i++) {
            //                sl.sleepMicros(100);
            pingAndAwaitPong(pingserver, await, pr, histo, i);
        }
        histo.outputPercentileDistribution(System.out, 1000.0);
        histo.reset();
        System.gc();
    }
}

Example 2 with FCSubscriber

use of org.nustaq.fastcast.api.FCSubscriber in project fast-cast by RuedigerMoeller.

the class FCPing method runPingClientASync.

// no coordinated ommission, async
public void runPingClientASync() throws InterruptedException {
    final FastCast fc = initFC("pclie", "pingponglat.kson");
    final FCPublisher pingserver = fc.onTransport("ping").publish(fc.getPublisherConf("pingtopic"));
    final Executor ex = Executors.newSingleThreadExecutor();
    final Histogram histo = new Histogram(TimeUnit.SECONDS.toNanos(10), 3);
    fc.onTransport(PING_BACK_ON_SAME_TOPIC ? "ping" : "pong").subscribe(fc.getSubscriberConf("pongtopic"), new FCSubscriber() {

        int msgCount;

        @Override
        public void messageReceived(String sender, long sequence, Bytez b, long off, int len) {
            // decode bounced back ping request
            PingRequest received = FSTStructFactory.getInstance().getStructPointer(b, off).cast();
            if (// filter out pressure of printing histogram
            msgCount > 10_000)
                histo.recordValue(System.nanoTime() - received.getNanoSendTime());
            msgCount++;
            if (msgCount > NUM_MSG + 10_000) {
                histo.outputPercentileDistribution(System.out, 1000.0);
                histo.reset();
                msgCount = 0;
            }
        }

        @Override
        public boolean dropped() {
            return true;
        }

        @Override
        public void senderTerminated(String senderNodeId) {
            System.out.println(senderNodeId + " terminated");
        }

        @Override
        public void senderBootstrapped(String receivesFrom, long seqNo) {
            System.out.println("bootstrap " + receivesFrom);
        }
    });
    // just create a byte[] for each struct (*)
    FSTStructAllocator alloc = new FSTStructAllocator(0);
    PingRequest pr = alloc.newStruct(new PingRequest());
    Sleeper sl = new Sleeper();
    while (true) {
        // need rate limiting cause of async
        sl.spinMicros(200);
        pr.setNanoSendTime(System.nanoTime());
        // can be sure off is 0, see (*)
        pingserver.offer(null, pr.getBase(), true);
    }
}

Example 3 with FCSubscriber

use of org.nustaq.fastcast.api.FCSubscriber in project fast-cast by RuedigerMoeller.

the class FCPing method runPongServer.

public void runPongServer() throws InterruptedException {
    FastCast fc = initFC("pserv", "pingponglat.kson");
    final FCPublisher echoresp = fc.onTransport(PING_BACK_ON_SAME_TOPIC ? "ping" : "pong").publish(fc.getPublisherConf("pongtopic"));
    fc.onTransport("ping").subscribe(fc.getSubscriberConf("pingtopic"), new FCSubscriber() {

        @Override
        public void messageReceived(String sender, long sequence, Bytez b, long off, int len) {
            //                System.out.println("snd:"+sender);
            while (!echoresp.offer(sender, b, off, len, true)) {
                // ensure retrans processing etc.
                echoresp.flush();
            }
        }

        @Override
        public boolean dropped() {
            return true;
        }

        @Override
        public void senderTerminated(String senderNodeId) {
            System.out.println(senderNodeId + " terminated");
        }

        @Override
        public void senderBootstrapped(String receivesFrom, long seqNo) {
            System.out.println("bootstrap " + receivesFrom);
        }
    });
    while (true) {
        Thread.sleep(100000);
    }
}

Example 4 with FCSubscriber

use of org.nustaq.fastcast.api.FCSubscriber in project fast-cast by RuedigerMoeller.

the class Issue4_Slow method initFC.

public void initFC() {
    if (fc == null) {
        fc = setupFC("t" + (int) (1000 * Math.random()), "stuff/sendreceive.kson");
        FCSubscriber sub = new ObjectSubscriber() {

            int count = 0;

            @Override
            protected void objectReceived(String sender, long sequence, Object msg) {
                if (msg instanceof String) {
                    System.out.println(fc.getNodeId() + " received: " + count);
                    count = 0;
                } else {
                    Object[] i_time = (Object[]) msg;
                    System.out.println(fc.getNodeId() + " received " + i_time[0] + " delay: " + (System.currentTimeMillis() - (Long) i_time[1]));
                    count++;
                }
            }

            @Override
            public boolean dropped() {
                System.out.println("FATAL ERROR. Enlarge send history");
                System.exit(0);
                return false;
            }

            @Override
            public void senderTerminated(String senderNodeId) {
                System.out.println(senderNodeId + " terminated");
            }

            @Override
            public void senderBootstrapped(String receivesFrom, long seqNo) {
                System.out.println("bootstrap " + receivesFrom);
            }
        };
        fc.onTransport("default").subscribe(fc.getSubscriberConf("sendreceive"), sub);
        FCPublisher rawPublisher = fc.onTransport("default").publish(fc.getPublisherConf("sendreceive"));
        publisher = new ObjectPublisher(rawPublisher);
    }
}

Example 5 with FCSubscriber

use of org.nustaq.fastcast.api.FCSubscriber in project fast-cast by RuedigerMoeller.

the class ReceiveBufferDispatcher method cleanup.

/**
     * if a sender stops sending, remove from map to free memory
     * @param senderName
     */
public void cleanup(String senderName) {
    StructString struct = new StructString(senderName);
    PacketReceiveBuffer packetReceiveBuffer = bufferMap.get(struct);
    bufferMap.remove(struct);
    if (packetReceiveBuffer != null) {
        FCSubscriber subscriber = packetReceiveBuffer.getTopicEntry().getSubscriber();
        if (subscriber != null) {
            subscriber.senderTerminated(senderName);
        } else {
            FCLog.get().severe("no subscriber for stopped sender", null);
        }
        packetReceiveBuffer.terminate();
    } else {
        FCLog.get().warn("cannot find packetReceiver to terminate");
    }
}