Examples with Ctx zmq.Ctx used on opensource projects

Example 11 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class SubTest method testSend.

@Test
public void testSend() {
    Ctx ctx = ZMQ.createContext();
    SocketBase pub = null;
    try {
        pub = ctx.createSocket(ZMQ.ZMQ_SUB);
        pub.send(new Msg(), ZMQ.ZMQ_DONTWAIT);
        Assert.fail("Sub cannot send message");
    } catch (UnsupportedOperationException e) {
        assertThat(ctx.errno().get(), is(ZError.ENOTSUP));
    } finally {
        ZMQ.close(pub);
        ZMQ.term(ctx);
    }
}

Example 12 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class SubTest method testHasOut.

@Test
public void testHasOut() {
    Ctx ctx = ZMQ.createContext();
    SocketBase pub = null;
    try {
        pub = ctx.createSocket(ZMQ.ZMQ_SUB);
        int events = pub.getSocketOpt(ZMQ.ZMQ_EVENTS);
        assertThat(events, is(0));
    } finally {
        ZMQ.close(pub);
        ZMQ.term(ctx);
    }
}

Example 13 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class TestSubForward method testSubForward.

// Create REQ/ROUTER wiring.
@Test
public void testSubForward() throws IOException {
    int port1 = Utils.findOpenPort();
    int port2 = Utils.findOpenPort();
    Ctx ctx = ZMQ.init(1);
    assertThat(ctx, notNullValue());
    // First, create an intermediate device
    SocketBase xpubBind = ZMQ.socket(ctx, ZMQ.ZMQ_XPUB);
    assertThat(xpubBind, notNullValue());
    boolean rc = ZMQ.bind(xpubBind, "tcp://127.0.0.1:" + port1);
    SocketBase xsubBind = ZMQ.socket(ctx, ZMQ.ZMQ_XSUB);
    assertThat(xsubBind, notNullValue());
    rc = ZMQ.bind(xsubBind, "tcp://127.0.0.1:" + port2);
    assertThat(rc, is(true));
    // Create a publisher
    SocketBase pubConnect = ZMQ.socket(ctx, ZMQ.ZMQ_PUB);
    assertThat(pubConnect, notNullValue());
    rc = ZMQ.connect(pubConnect, "tcp://127.0.0.1:" + port2);
    assertThat(rc, is(true));
    // Create a subscriber
    SocketBase subConnect = ZMQ.socket(ctx, ZMQ.ZMQ_SUB);
    assertThat(subConnect, notNullValue());
    rc = ZMQ.connect(subConnect, "tcp://127.0.0.1:" + port1);
    assertThat(rc, is(true));
    // Subscribe for all messages.
    ZMQ.setSocketOption(subConnect, ZMQ.ZMQ_SUBSCRIBE, "");
    ZMQ.sleep(1);
    // Pass the subscription upstream through the device
    Msg msg = ZMQ.recv(xpubBind, 0);
    assertThat(msg, notNullValue());
    int n = ZMQ.send(xsubBind, msg, 0);
    assertThat(n, not(0));
    // Wait a bit till the subscription gets to the publisher
    ZMQ.sleep(1);
    // Send an empty message
    n = ZMQ.send(pubConnect, null, 0, 0);
    assertThat(n, is(0));
    // Pass the message downstream through the device
    msg = ZMQ.recv(xsubBind, 0);
    assertThat(msg, notNullValue());
    n = ZMQ.send(xpubBind, msg, 0);
    assertThat(n, is(0));
    // Receive the message in the subscriber
    msg = ZMQ.recv(subConnect, 0);
    assertThat(msg, notNullValue());
    // Tear down the wiring.
    ZMQ.close(xpubBind);
    ZMQ.close(xsubBind);
    ZMQ.close(pubConnect);
    ZMQ.close(subConnect);
    ZMQ.term(ctx);
}

Example 14 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class XPubManualTest method testXpubManual.

@Test
public void testXpubManual() throws IOException {
    Ctx ctx = ZMQ.init(1);
    assertThat(ctx, notNullValue());
    // Create a publisher
    SocketBase pubBind = ZMQ.socket(ctx, ZMQ.ZMQ_XPUB);
    assertThat(pubBind, notNullValue());
    boolean rc = ZMQ.bind(pubBind, "inproc://soname");
    assertThat(rc, is(true));
    // set pub socket options
    ZMQ.setSocketOption(pubBind, ZMQ.ZMQ_XPUB_MANUAL, 1);
    int hwm = 2000;
    ZMQ.setSocketOption(pubBind, ZMQ.ZMQ_SNDHWM, hwm);
    // Create a subscriber
    SocketBase subConnect = ZMQ.socket(ctx, ZMQ.ZMQ_SUB);
    assertThat(subConnect, notNullValue());
    // Subscribe for "A" messages.
    ZMQ.setSocketOption(subConnect, ZMQ.ZMQ_SUBSCRIBE, "A");
    rc = ZMQ.connect(subConnect, "inproc://soname");
    assertThat(rc, is(true));
    // Create a subscriber
    SocketBase subConnect2 = ZMQ.socket(ctx, ZMQ.ZMQ_SUB);
    assertThat(subConnect2, notNullValue());
    // Subscribe for "B" messages.
    ZMQ.setSocketOption(subConnect2, ZMQ.ZMQ_SUBSCRIBE, "B");
    rc = ZMQ.connect(subConnect2, "inproc://soname");
    assertThat(rc, is(true));
    Msg subMsg = ZMQ.recv(pubBind, ZMQ.ZMQ_DONTWAIT);
    ZMQ.setSocketOption(pubBind, ZMQ.ZMQ_SUBSCRIBE, subMsg.data());
    subMsg = ZMQ.recv(pubBind, ZMQ.ZMQ_DONTWAIT);
    ZMQ.setSocketOption(pubBind, ZMQ.ZMQ_SUBSCRIBE, subMsg.data());
    int hwmlimit = hwm - 1;
    int sendCount = 0;
    // Send  message
    for (int i = 0; i < hwmlimit; i++) {
        int ret = ZMQ.send(pubBind, "A", 0);
        assert (ret == 1);
        ret = ZMQ.send(pubBind, "B", 0);
        assert (ret == 1);
        sendCount++;
    }
    int recvCount = 0;
    Msg msg = null;
    do {
        // Receive the message in the subscriber
        msg = ZMQ.recv(subConnect, ZMQ.ZMQ_DONTWAIT);
        if (msg != null) {
            recvCount++;
        }
    } while (msg != null);
    assertThat(sendCount, is(recvCount));
    recvCount = 0;
    do {
        // Receive the message in the subscriber
        msg = ZMQ.recv(subConnect2, ZMQ.ZMQ_DONTWAIT);
        if (msg != null) {
            recvCount++;
        }
    } while (msg != null);
    assertThat(sendCount, is(recvCount));
    // Tear down the wiring.
    ZMQ.close(pubBind);
    ZMQ.close(subConnect);
    ZMQ.close(subConnect2);
    ZMQ.term(ctx);
}

Example 15 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class XPubTest method testSetVerbose.

@Test
public void testSetVerbose() {
    Ctx ctx = ZMQ.createContext();
    SocketBase pub = null;
    try {
        pub = ctx.createSocket(ZMQ.ZMQ_XPUB);
        boolean rc = pub.setSocketOpt(ZMQ.ZMQ_XPUB_VERBOSE, 0);
        assertThat(rc, is(true));
    } finally {
        ZMQ.close(pub);
        ZMQ.term(ctx);
    }
}