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

Example 1 with FCPublisher

use of org.nustaq.fastcast.api.FCPublisher 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 FCPublisher

use of org.nustaq.fastcast.api.FCPublisher 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 FCPublisher

use of org.nustaq.fastcast.api.FCPublisher 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 FCPublisher

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

the class MPPublisher method main.

public static void main(String[] arg) {
    // 5 chars MAX !!
    FastCast.getFastCast().setNodeId("MPUB");
    configureFastCast();
    FCPublisher pub = FastCast.getFastCast().onTransport("default").publish(// unique-per-transport topic id
    new PublisherConf(1).numPacketHistory(// how many packets are kept for retransmission requests
    33_000).pps(// packets per second rate limit.
    10_000));
    MultipleProtocol.initStructFactory();
    FSTStructAllocator onHeapAlloc = new FSTStructAllocator(10_000);
    AMessage aMsg = onHeapAlloc.newStruct(new AMessage());
    OtherMessage other = onHeapAlloc.newStruct(new OtherMessage());
    ComposedMessage composed = onHeapAlloc.newStruct(new ComposedMessage());
    ThreadLocalRandom random = ThreadLocalRandom.current();
    // could directly send raw on publisher
    RateMeasure measure = new RateMeasure("msg/s");
    int count = 0;
    FSTStruct msg = null;
    while (true) {
        measure.count();
        // fill in data
        switch(random.nextInt(3)) {
            case 0:
                for (int i = 0; i < aMsg.stringArrayLen(); i++) {
                    aMsg.stringArray(i).setString("Hello " + i);
                }
                aMsg.setL(count++);
                msg = aMsg;
                break;
            case 1:
                other.setQuantity(count++);
                other.setValue(random.nextDouble());
                msg = other;
                break;
            case 2:
                aMsg.stringArray(0).setString("Hello !");
                aMsg.stringArray(1).setString("Hello !!");
                aMsg.setL(count++);
                other.setQuantity(count++);
                other.setValue(random.nextDouble());
                // does a copy !
                composed.setMegA(aMsg);
                // does a copy !
                composed.setMsgB(other);
                msg = composed;
                break;
        }
        // send message
        while (!pub.offer(null, msg.getBase(), msg.getOffset(), msg.getByteSize(), false)) {
        /* spin */
        }
    }
}

Example 5 with FCPublisher

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

the class StructPublisher method main.

public static void main(String[] arg) {
    // 5 chars MAX !!
    FastCast.getFastCast().setNodeId("PUB");
    configureFastCast();
    FCPublisher pub = FastCast.getFastCast().onTransport("default").publish(// unique-per-transport topic id
    new PublisherConf(1).numPacketHistory(// how many packets are kept for retransmission requests
    33_000).pps(// packets per second rate limit.
    10_000));
    Protocol.initStructFactory();
    Protocol.PriceUpdateStruct template = new Protocol.PriceUpdateStruct();
    FSTStructAllocator onHeapAlloc = new FSTStructAllocator(0);
    // speed up instantiation
    Protocol.PriceUpdateStruct msg = onHeapAlloc.newStruct(template);
    ThreadLocalRandom current = ThreadLocalRandom.current();
    // could directly send raw on publisher
    RateMeasure measure = new RateMeasure("msg/s");
    while (true) {
        measure.count();
        // fill in data
        Protocol.InstrumentStruct instrument = msg.getInstrument();
        instrument.getMnemonic().setString("BMW");
        instrument.setInstrumentId(13);
        msg.setPrc(99.0 + current.nextDouble(10.0) - 5);
        msg.setQty(100 + current.nextInt(10));
        // send message
        while (!pub.offer(null, msg.getBase(), msg.getOffset(), msg.getByteSize(), false)) {
        /* spin */
        }
    }
}