Examples with MediaDriver io.aeron.driver.MediaDriver used on opensource projects

Example 36 with MediaDriver

use of io.aeron.driver.MediaDriver in project aeron by real-logic.

the class EmbeddedExclusiveThroughput method main.

public static void main(final String[] args) throws Exception {
    loadPropertiesFiles(args);
    final RateReporter reporter = new RateReporter(TimeUnit.SECONDS.toNanos(1), EmbeddedExclusiveThroughput::printRate);
    final FragmentHandler rateReporterHandler = rateReporterHandler(reporter);
    final ExecutorService executor = Executors.newFixedThreadPool(2);
    final AtomicBoolean running = new AtomicBoolean(true);
    try (MediaDriver ignore = MediaDriver.launch();
        Aeron aeron = Aeron.connect();
        ExclusivePublication publication = aeron.addExclusivePublication(CHANNEL, STREAM_ID);
        Subscription subscription = aeron.addSubscription(CHANNEL, STREAM_ID)) {
        executor.execute(reporter);
        executor.execute(() -> SamplesUtil.subscriberLoop(rateReporterHandler, FRAGMENT_COUNT_LIMIT, running).accept(subscription));
        final ContinueBarrier barrier = new ContinueBarrier("Execute again?");
        do {
            System.out.format("%nStreaming %,d messages of payload length %d bytes to %s on stream Id %d%n", NUMBER_OF_MESSAGES, MESSAGE_LENGTH, CHANNEL, STREAM_ID);
            printingActive = true;
            long backPressureCount = 0;
            for (long i = 0; i < NUMBER_OF_MESSAGES; i++) {
                ATOMIC_BUFFER.putLong(0, i);
                OFFER_IDLE_STRATEGY.reset();
                while (publication.offer(ATOMIC_BUFFER, 0, ATOMIC_BUFFER.capacity()) < 0) {
                    OFFER_IDLE_STRATEGY.idle();
                    backPressureCount++;
                }
            }
            System.out.println("Done streaming. backPressureRatio=" + ((double) backPressureCount / NUMBER_OF_MESSAGES));
            if (LINGER_TIMEOUT_MS > 0) {
                System.out.println("Lingering for " + LINGER_TIMEOUT_MS + " milliseconds...");
                Thread.sleep(LINGER_TIMEOUT_MS);
            }
            printingActive = false;
        } while (barrier.await());
        running.set(false);
        reporter.halt();
        executor.shutdown();
    }
}

Example 37 with MediaDriver

use of io.aeron.driver.MediaDriver in project aeron by real-logic.

the class EmbeddedPingPong method main.

public static void main(final String[] args) throws Exception {
    loadPropertiesFiles(args);
    final MediaDriver.Context ctx = new MediaDriver.Context().threadingMode(ThreadingMode.DEDICATED).conductorIdleStrategy(new BackoffIdleStrategy(1, 1, 1, 1)).receiverIdleStrategy(new NoOpIdleStrategy()).senderIdleStrategy(new NoOpIdleStrategy());
    try (MediaDriver ignored = MediaDriver.launch(ctx)) {
        final Thread pongThread = startPong(ignored.aeronDirectoryName());
        pongThread.start();
        runPing(ignored.aeronDirectoryName());
        RUNNING.set(false);
        pongThread.join();
        System.out.println("Shutdown Driver...");
    }
}

Example 38 with MediaDriver

use of io.aeron.driver.MediaDriver in project aeron by real-logic.

the class FileReceiver method main.

public static void main(final String[] args) {
    final File storageDir;
    if (args.length > 1) {
        storageDir = new File(args[0]);
        if (!storageDir.isDirectory()) {
            System.out.println(args[0] + " is not a directory");
            System.exit(1);
        }
    } else {
        storageDir = new File(IoUtil.tmpDirName());
    }
    System.out.println("Files stored to " + storageDir.getAbsolutePath());
    final IdleStrategy idleStrategy = new SleepingMillisIdleStrategy(1);
    final AtomicBoolean running = new AtomicBoolean(true);
    SigInt.register(() -> running.set(false));
    try (MediaDriver ignore = MediaDriver.launch();
        Aeron aeron = Aeron.connect();
        Subscription subscription = aeron.addSubscription(CHANNEL, STREAM_ID)) {
        System.out.println("Receiving from " + CHANNEL + " on stream Id " + STREAM_ID);
        final FileReceiver fileReceiver = new FileReceiver(storageDir, subscription);
        while (running.get()) {
            idleStrategy.idle(fileReceiver.doWork());
        }
    }
}

Example 39 with MediaDriver

use of io.aeron.driver.MediaDriver in project aeron by real-logic.

the class LowLatencyMediaDriver method main.

public static void main(final String[] args) {
    loadPropertiesFiles(args);
    final MediaDriver.Context ctx = new MediaDriver.Context().termBufferSparseFile(false).threadingMode(ThreadingMode.DEDICATED).conductorIdleStrategy(new BusySpinIdleStrategy()).receiverIdleStrategy(new BusySpinIdleStrategy()).senderIdleStrategy(new BusySpinIdleStrategy());
    try (MediaDriver ignored = MediaDriver.launch(ctx)) {
        new ShutdownSignalBarrier().await();
        System.out.println("Shutdown Driver...");
    }
}

Example 40 with MediaDriver

use of io.aeron.driver.MediaDriver in project aeron by real-logic.

the class Ping method main.

public static void main(final String[] args) throws Exception {
    final MediaDriver driver = EMBEDDED_MEDIA_DRIVER ? MediaDriver.launchEmbedded() : null;
    final Aeron.Context ctx = new Aeron.Context().availableImageHandler(Ping::availablePongImageHandler);
    final FragmentHandler fragmentHandler = new FragmentAssembler(Ping::pongHandler);
    if (EMBEDDED_MEDIA_DRIVER) {
        ctx.aeronDirectoryName(driver.aeronDirectoryName());
    }
    System.out.println("Publishing Ping at " + PING_CHANNEL + " on stream Id " + PING_STREAM_ID);
    System.out.println("Subscribing Pong at " + PONG_CHANNEL + " on stream Id " + PONG_STREAM_ID);
    System.out.println("Message length of " + MESSAGE_LENGTH + " bytes");
    try (Aeron aeron = Aeron.connect(ctx)) {
        System.out.println("Warming up... " + WARMUP_NUMBER_OF_ITERATIONS + " iterations of " + WARMUP_NUMBER_OF_MESSAGES + " messages");
        try (Publication publication = aeron.addPublication(PING_CHANNEL, PING_STREAM_ID);
            Subscription subscription = aeron.addSubscription(PONG_CHANNEL, PONG_STREAM_ID)) {
            LATCH.await();
            for (int i = 0; i < WARMUP_NUMBER_OF_ITERATIONS; i++) {
                roundTripMessages(fragmentHandler, publication, subscription, WARMUP_NUMBER_OF_MESSAGES);
            }
            Thread.sleep(100);
            final ContinueBarrier barrier = new ContinueBarrier("Execute again?");
            do {
                HISTOGRAM.reset();
                System.out.println("Pinging " + NUMBER_OF_MESSAGES + " messages");
                roundTripMessages(fragmentHandler, publication, subscription, NUMBER_OF_MESSAGES);
                System.out.println("Histogram of RTT latencies in microseconds.");
                HISTOGRAM.outputPercentileDistribution(System.out, 1000.0);
            } while (barrier.await());
        }
    }
    CloseHelper.quietClose(driver);
}