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

Example 71 with MediaDriver

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

the class BasicSubscriber method main.

/**
 * Main method for launching the process.
 *
 * @param args passed to the process.
 */
public static void main(final String[] args) {
    System.out.println("Subscribing to " + CHANNEL + " on stream id " + STREAM_ID);
    final MediaDriver driver = EMBEDDED_MEDIA_DRIVER ? MediaDriver.launchEmbedded() : null;
    final Aeron.Context ctx = new Aeron.Context().availableImageHandler(SamplesUtil::printAvailableImage).unavailableImageHandler(SamplesUtil::printUnavailableImage);
    if (EMBEDDED_MEDIA_DRIVER) {
        ctx.aeronDirectoryName(driver.aeronDirectoryName());
    }
    final FragmentHandler fragmentHandler = SamplesUtil.printAsciiMessage(STREAM_ID);
    final AtomicBoolean running = new AtomicBoolean(true);
    // Register a SIGINT handler for graceful shutdown.
    SigInt.register(() -> running.set(false));
    // clean up resources when this try block is finished
    try (Aeron aeron = Aeron.connect(ctx);
        Subscription subscription = aeron.addSubscription(CHANNEL, STREAM_ID)) {
        SamplesUtil.subscriberLoop(fragmentHandler, FRAGMENT_COUNT_LIMIT, running).accept(subscription);
        System.out.println("Shutting down...");
    }
    CloseHelper.close(driver);
}

Example 72 with MediaDriver

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

the class EmbeddedPingPong method main.

/**
 * Main method for launching the process.
 *
 * @param args passed to the process.
 * @throws InterruptedException if the thread is interrupted.
 */
public static void main(final String[] args) throws InterruptedException {
    loadPropertiesFiles(args);
    final MediaDriver.Context ctx = new MediaDriver.Context().threadingMode(ThreadingMode.DEDICATED).conductorIdleStrategy(new BackoffIdleStrategy(1, 1, 1000, 1000)).receiverIdleStrategy(NoOpIdleStrategy.INSTANCE).senderIdleStrategy(NoOpIdleStrategy.INSTANCE);
    try (MediaDriver mediaDriver = MediaDriver.launch(ctx);
        Aeron aeron = Aeron.connect(new Aeron.Context().aeronDirectoryName(mediaDriver.aeronDirectoryName()))) {
        final Thread pongThread = startPong(aeron);
        pongThread.start();
        runPing(aeron);
        RUNNING.set(false);
        pongThread.join();
        System.out.println("Shutdown Driver...");
    }
}

Example 73 with MediaDriver

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

the class LowLatencyMediaDriver method main.

/**
 * Main method for launching the process.
 *
 * @param args passed to the process which will be used for loading properties files.
 */
@SuppressWarnings("try")
public static void main(final String[] args) {
    loadPropertiesFiles(args);
    final MediaDriver.Context ctx = new MediaDriver.Context().termBufferSparseFile(false).useWindowsHighResTimer(true).threadingMode(ThreadingMode.DEDICATED).conductorIdleStrategy(BusySpinIdleStrategy.INSTANCE).receiverIdleStrategy(NoOpIdleStrategy.INSTANCE).senderIdleStrategy(NoOpIdleStrategy.INSTANCE);
    try (MediaDriver ignored = MediaDriver.launch(ctx)) {
        new ShutdownSignalBarrier().await();
        System.out.println("Shutdown Driver...");
    }
}

Example 74 with MediaDriver

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

the class TestMediaDriverTest method connectToCMediaDriverWithoutSpecifyingAeronDir.

@Test
void connectToCMediaDriverWithoutSpecifyingAeronDir() {
    assumeTrue(TestMediaDriver.shouldRunCMediaDriver());
    final MediaDriver.Context context = new MediaDriver.Context().dirDeleteOnStart(true).dirDeleteOnShutdown(false);
    assertEquals(CommonContext.getAeronDirectoryName(), context.aeronDirectoryName());
    try (TestMediaDriver mediaDriver = CTestMediaDriver.launch(context, false, null);
        Aeron aeron = Aeron.connect(new Aeron.Context().aeronDirectoryName(context.aeronDirectoryName()))) {
        final File aeronDirectory = aeron.context().aeronDirectory();
        assertNotNull(aeronDirectory);
        assertTrue(aeronDirectory.exists());
        assertNotNull(mediaDriver);
    } finally {
        context.deleteDirectory();
    }
}

Example 75 with MediaDriver

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

the class ClusterNetworkTopologyTest method connectAndSendMessages.

private void connectAndSendMessages(final String ingressChannel, final String ingressEndpoints, final Selector selector, final double messageCount) {
    final String message = "Hello World!";
    final MutableDirectBuffer messageBuffer = new UnsafeBuffer(ByteBuffer.allocate(128));
    final int length = messageBuffer.putStringAscii(0, message);
    final MutableReference<String> egressResponse = new MutableReference<>();
    final EgressListener egressListener = (clusterSessionId, timestamp, buffer, offset, length1, header) -> {
        final String stringAscii = buffer.getStringAscii(offset);
        egressResponse.set(stringAscii);
    };
    try (MediaDriver mediaDriver = MediaDriver.launchEmbedded(new MediaDriver.Context().threadingMode(ThreadingMode.SHARED).dirDeleteOnStart(true).dirDeleteOnShutdown(true));
        AeronCluster.AsyncConnect asyncConnect = AeronCluster.asyncConnect(new AeronCluster.Context().messageTimeoutNs(TimeUnit.SECONDS.toNanos(CLUSTER_START_ELECTION_TIMEOUT_S * 2)).egressListener(egressListener).egressChannel("aeron:udp?endpoint=10.42.0.1:0").aeronDirectoryName(mediaDriver.aeronDirectoryName()).ingressChannel(ingressChannel).ingressEndpoints(ingressEndpoints));
        AeronCluster aeronCluster = pollUntilConnected(asyncConnect, selector)) {
        for (int i = 0; i < messageCount; i++) {
            Tests.await(() -> {
                final long position = aeronCluster.offer(messageBuffer, 0, length);
                pollSelector(selector);
                return 0 < position;
            }, SECONDS.toNanos(5));
            Tests.await(() -> {
                aeronCluster.pollEgress();
                pollSelector(selector);
                return message.equals(egressResponse.get());
            }, SECONDS.toNanos(5));
        }
    }
}