Examples with Msg zmq.Msg used on opensource projects

Example 21 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class AbstractProtocolVersion method assertProtocolVersion.

protected byte[] assertProtocolVersion(int version, List<ByteBuffer> raws, String payload) throws IOException, InterruptedException {
    String host = "tcp://localhost:*";
    Ctx ctx = ZMQ.init(1);
    assertThat(ctx, notNullValue());
    SocketBase receiver = ZMQ.socket(ctx, ZMQ.ZMQ_PULL);
    assertThat(receiver, notNullValue());
    boolean rc = ZMQ.setSocketOption(receiver, ZMQ.ZMQ_LINGER, 0);
    assertThat(rc, is(true));
    rc = ZMQ.monitorSocket(receiver, "inproc://monitor", ZMQ.ZMQ_EVENT_HANDSHAKE_PROTOCOL);
    assertThat(rc, is(true));
    SocketMonitor monitor = new SocketMonitor(ctx, "inproc://monitor");
    monitor.start();
    rc = ZMQ.bind(receiver, host);
    assertThat(rc, is(true));
    String ep = (String) ZMQ.getSocketOptionExt(receiver, ZMQ.ZMQ_LAST_ENDPOINT);
    int port = TestUtils.port(ep);
    Socket sender = new Socket("127.0.0.1", port);
    OutputStream out = sender.getOutputStream();
    for (ByteBuffer raw : raws) {
        out.write(raw.array());
    }
    Msg msg = ZMQ.recv(receiver, 0);
    assertThat(msg, notNullValue());
    assertThat(new String(msg.data(), ZMQ.CHARSET), is(payload));
    monitor.join();
    final Event event = monitor.events[0];
    assertThat(event, notNullValue());
    assertThat(event.event, is(ZMQ.ZMQ_EVENT_HANDSHAKE_PROTOCOL));
    assertThat((Integer) event.arg, is(version));
    InputStream in = sender.getInputStream();
    byte[] data = new byte[255];
    int read = in.read(data);
    sender.close();
    ZMQ.close(receiver);
    ZMQ.term(ctx);
    return Arrays.copyOf(data, read);
}

Example 22 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class AbstractDecoderTest method testReader.

@Test
public void testReader() {
    ByteBuffer in = decoder.getBuffer();
    int insize = readShortMessage(in);
    assertThat(insize, is(7));
    in.flip();
    ValueReference<Integer> process = new ValueReference<>(0);
    decoder.decode(in, insize, process);
    assertThat(process.get(), is(7));
    Msg msg = decoder.msg();
    assertThat(msg, notNullValue());
    assertThat(msg.flags(), is(1));
}

Example 23 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class AbstractDecoderTest method testReaderLong.

@Test
public void testReaderLong() {
    ByteBuffer in = decoder.getBuffer();
    int insize = readLongMessage1(in);
    assertThat(insize, is(64));
    in.flip();
    ValueReference<Integer> process = new ValueReference<>(0);
    decoder.decode(in, insize, process);
    assertThat(process.get(), is(64));
    in = decoder.getBuffer();
    assertThat(in.capacity(), is(200));
    assertThat(in.position(), is(62));
    in.put("23456789".getBytes(ZMQ.CHARSET));
    insize = readLongMessage2(in);
    assertThat(insize, is(200));
    decoder.decode(in, 138, process);
    assertThat(process.get(), is(138));
    assertThat(in.array()[199], is((byte) 'x'));
    Msg msg = decoder.msg();
    assertThat(msg, notNullValue());
    byte last = msg.data()[199];
    assertThat(last, is((byte) 'x'));
    assertThat(msg.size(), is(200));
    assertThat(msg.flags(), is(1));
}

Example 24 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class AbstractDecoderTest method testReaderExtraLong.

@Test
public void testReaderExtraLong() {
    ByteBuffer in = decoder.getBuffer();
    int insize = readExtraLongMessage(in);
    // assertThat(insize, is(62));
    in.flip();
    ValueReference<Integer> process = new ValueReference<>(0);
    decoder.decode(in, insize, process);
    assertThat(process.get(), is(insize));
    in = decoder.getBuffer();
    assertThat(in.capacity(), is(330));
    assertThat(in.position(), is(52));
    in.put("23456789".getBytes(ZMQ.CHARSET));
    in.put("0123456789".getBytes(ZMQ.CHARSET));
    insize = readLongMessage2(in);
    assertThat(insize, is(200));
    insize = readLongMessage2(in);
    assertThat(insize, is(330));
    decoder.decode(in, 278, process);
    assertThat(process.get(), is(278));
    assertThat(in.array()[329], is((byte) 'x'));
    Msg msg = decoder.msg();
    assertThat(msg, notNullValue());
    byte last = msg.data()[329];
    assertThat(last, is((byte) 'x'));
    assertThat(msg.size(), is(330));
}

Example 25 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class LocalThr method main.

public static void main(String[] argv) {
    String bindTo;
    long messageCount;
    int messageSize;
    Ctx ctx;
    SocketBase s;
    boolean rc;
    long i;
    Msg msg;
    long watch;
    long elapsed;
    long throughput;
    double megabits;
    if (argv.length != 3) {
        printf("usage: local_thr <bind-to> <message-size> <message-count>\n");
        return;
    }
    bindTo = argv[0];
    messageSize = atoi(argv[1]);
    messageCount = atol(argv[2]);
    ctx = ZMQ.init(1);
    if (ctx == null) {
        printf("error in init");
        return;
    }
    s = ZMQ.socket(ctx, ZMQ.ZMQ_PULL);
    if (s == null) {
        printf("error in socket");
    }
    // Add your socket options here.
    // For example ZMQ_RATE, ZMQ_RECOVERY_IVL and ZMQ_MCAST_LOOP for PGM.
    rc = ZMQ.bind(s, bindTo);
    if (!rc) {
        printf("error in bind: %s\n");
        return;
    }
    msg = ZMQ.recvMsg(s, 0);
    if (msg == null) {
        printf("error in recvmsg: %s\n");
        return;
    }
    watch = ZMQ.startStopwatch();
    for (i = 0; i != messageCount - 1; i++) {
        msg = ZMQ.recvMsg(s, 0);
        if (msg == null) {
            printf("error in recvmsg: %s\n");
            return;
        }
        if (ZMQ.msgSize(msg) != messageSize) {
            printf("message of incorrect size received " + ZMQ.msgSize(msg));
            return;
        }
    }
    elapsed = ZMQ.stopStopwatch(watch);
    if (elapsed == 0) {
        elapsed = 1;
    }
    throughput = (long) ((double) messageCount / (double) elapsed * 1000000L);
    megabits = (double) (throughput * messageSize * 8) / 1000000;
    printf("message elapsed: %.3f \n", (double) elapsed / 1000000L);
    printf("message size: %d [B]\n", (int) messageSize);
    printf("message count: %d\n", (int) messageCount);
    printf("mean throughput: %d [msg/s]\n", (int) throughput);
    printf("mean throughput: %.3f [Mb/s]\n", (double) megabits);
    ZMQ.close(s);
    ZMQ.term(ctx);
}