Examples with Ctx zmq.Ctx used on opensource projects

Example 66 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class SecurityNullTest method testNullMechanismSecurity.

@Test
public void testNullMechanismSecurity() throws IOException, InterruptedException {
    String host = "tcp://127.0.0.1:*";
    Ctx ctx = ZMQ.createContext();
    // Spawn ZAP handler
    // We create and bind ZAP socket in main thread to avoid case
    // where child thread does not start up fast enough.
    SocketBase handler = ZMQ.socket(ctx, ZMQ.ZMQ_REP);
    assertThat(handler, notNullValue());
    boolean rc = ZMQ.bind(handler, "inproc://zeromq.zap.01");
    assertThat(rc, is(true));
    Thread thread = new Thread(new ZapHandler(handler));
    thread.start();
    // We bounce between a binding server and a connecting client
    // We first test client/server with no ZAP domain
    // Libzmq does not call our ZAP handler, the connect must succeed
    System.out.println("Test NO ZAP domain");
    SocketBase server = ZMQ.socket(ctx, ZMQ.ZMQ_DEALER);
    assertThat(server, notNullValue());
    SocketBase client = ZMQ.socket(ctx, ZMQ.ZMQ_DEALER);
    assertThat(client, notNullValue());
    rc = ZMQ.bind(server, host);
    assertThat(rc, is(true));
    String endpoint = (String) ZMQ.getSocketOptionExt(server, ZMQ.ZMQ_LAST_ENDPOINT);
    assertThat(endpoint, notNullValue());
    rc = ZMQ.connect(client, endpoint);
    assertThat(rc, is(true));
    Helper.bounce(server, client);
    ZMQ.closeZeroLinger(server);
    ZMQ.closeZeroLinger(client);
    // Now define a ZAP domain for the server; this enables
    // authentication. We're using the wrong domain so this test
    // must fail.
    System.out.println("Test WRONG ZAP domain");
    server = ZMQ.socket(ctx, ZMQ.ZMQ_DEALER);
    assertThat(server, notNullValue());
    client = ZMQ.socket(ctx, ZMQ.ZMQ_DEALER);
    assertThat(client, notNullValue());
    ZMQ.setSocketOption(server, ZMQ.ZMQ_ZAP_DOMAIN, "WRONG");
    rc = ZMQ.bind(server, host);
    assertThat(rc, is(true));
    endpoint = (String) ZMQ.getSocketOptionExt(server, ZMQ.ZMQ_LAST_ENDPOINT);
    assertThat(endpoint, notNullValue());
    rc = ZMQ.connect(client, endpoint);
    assertThat(rc, is(true));
    Helper.expectBounceFail(server, client);
    ZMQ.closeZeroLinger(server);
    ZMQ.closeZeroLinger(client);
    // Now use the right domain, the test must pass
    System.out.println("Test RIGHT ZAP domain");
    server = ZMQ.socket(ctx, ZMQ.ZMQ_DEALER);
    assertThat(server, notNullValue());
    client = ZMQ.socket(ctx, ZMQ.ZMQ_DEALER);
    assertThat(client, notNullValue());
    ZMQ.setSocketOption(server, ZMQ.ZMQ_ZAP_DOMAIN, "TEST");
    rc = ZMQ.bind(server, host);
    assertThat(rc, is(true));
    endpoint = (String) ZMQ.getSocketOptionExt(server, ZMQ.ZMQ_LAST_ENDPOINT);
    assertThat(endpoint, notNullValue());
    rc = ZMQ.connect(client, endpoint);
    assertThat(rc, is(true));
    Helper.bounce(server, client);
    ZMQ.closeZeroLinger(server);
    ZMQ.closeZeroLinger(client);
    // Unauthenticated messages from a vanilla socket shouldn't be received
    server = ZMQ.socket(ctx, ZMQ.ZMQ_DEALER);
    assertThat(server, notNullValue());
    ZMQ.setSocketOption(server, ZMQ.ZMQ_ZAP_DOMAIN, "WRONG");
    rc = ZMQ.bind(server, host);
    assertThat(rc, is(true));
    endpoint = (String) ZMQ.getSocketOptionExt(server, ZMQ.ZMQ_LAST_ENDPOINT);
    assertThat(endpoint, notNullValue());
    Socket sock = new Socket("127.0.0.1", TestUtils.port(endpoint));
    // send anonymous ZMTP/1.0 greeting
    OutputStream out = sock.getOutputStream();
    out.write(new StringBuilder().append(0x01).append(0x00).toString().getBytes(ZMQ.CHARSET));
    // send sneaky message that shouldn't be received
    out.write(new StringBuilder().append(0x08).append(0x00).append("sneaky").append(0x00).toString().getBytes(ZMQ.CHARSET));
    int timeout = 250;
    ZMQ.setSocketOption(server, ZMQ.ZMQ_RCVTIMEO, timeout);
    Msg msg = ZMQ.recv(server, 0);
    assertThat(msg, nullValue());
    sock.close();
    ZMQ.closeZeroLinger(server);
    // Shutdown
    ZMQ.term(ctx);
    // Wait until ZAP handler terminates
    thread.join();
}

Example 67 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class BindSrcAddressTest method test.

@Test
public void test() throws IOException {
    Ctx ctx = ZMQ.createContext();
    assert (ctx != null);
    SocketBase socket = ZMQ.socket(ctx, ZMQ.ZMQ_PUB);
    assert (socket != null);
    int port1 = Utils.findOpenPort();
    int port2 = Utils.findOpenPort();
    int port3 = Utils.findOpenPort();
    boolean rc = ZMQ.connect(socket, "tcp://127.0.0.1:0;localhost:" + port1);
    assert (rc);
    rc = ZMQ.connect(socket, "tcp://localhost:" + port3 + ";localhost:" + port2);
    assert (rc);
    // rc = ZMQ.connect(socket, "tcp://lo:" + port3 + ";localhost:" + port2);
    // assert (rc);
    ZMQ.close(socket);
    ZMQ.term(ctx);
}

Example 68 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class LocalLat method main.

public static void main(String[] args) {
    String bindTo;
    int roundtripCount;
    int messageSize;
    Ctx ctx;
    SocketBase s;
    boolean rc;
    int n;
    int i;
    Msg msg;
    if (args.length != 3) {
        printf("usage: local_lat <bind-to> <message-size> " + "<roundtrip-count>\n");
        return;
    }
    bindTo = args[0];
    messageSize = atoi(args[1]);
    roundtripCount = atoi(args[2]);
    ctx = ZMQ.init(1);
    if (ctx == null) {
        printf("error in init: %s\n");
        return;
    }
    s = ZMQ.socket(ctx, ZMQ.ZMQ_REP);
    if (s == null) {
        printf("error in socket: %s\n", ZMQ.strerror(ctx.errno().get()));
        return;
    }
    rc = ZMQ.bind(s, bindTo);
    if (!rc) {
        printf("error in bind: %s\n", ZMQ.strerror(s.errno()));
        return;
    }
    for (i = 0; i != roundtripCount; i++) {
        msg = ZMQ.recvMsg(s, 0);
        if (msg == null) {
            printf("error in recvmsg: %s\n", ZMQ.strerror(s.errno()));
            return;
        }
        if (ZMQ.msgSize(msg) != messageSize) {
            printf("message of incorrect size received\n");
            return;
        }
        n = ZMQ.sendMsg(s, msg, 0);
        if (n < 0) {
            printf("error in sendmsg: %s\n", ZMQ.strerror(s.errno()));
            return;
        }
    }
    ZMQ.sleep(1000);
    ZMQ.close(s);
    ZMQ.term(ctx);
}

Example 69 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class StreamEngineTest method testEncoderFlipIssue520.

@Test
public void testEncoderFlipIssue520() throws IOException {
    Ctx ctx = ZMQ.createContext();
    assertThat(ctx, notNullValue());
    SocketBase sender = ZMQ.socket(ctx, ZMQ.ZMQ_PUSH);
    assertThat(sender, notNullValue());
    boolean rc = ZMQ.setSocketOption(sender, ZMQ.ZMQ_IMMEDIATE, false);
    assertThat(rc, is(true));
    SocketBase receiver = ZMQ.socket(ctx, ZMQ.ZMQ_PULL);
    assertThat(receiver, notNullValue());
    String addr = "tcp://localhost:*";
    rc = ZMQ.bind(receiver, addr);
    assertThat(rc, is(true));
    addr = (String) ZMQ.getSocketOptionExt(receiver, ZMQ.ZMQ_LAST_ENDPOINT);
    assertThat(addr, notNullValue());
    rc = ZMQ.connect(sender, addr);
    assertThat(rc, is(true));
    final int headerSize = 8 + 1;
    // first message + second message header fill the buffer
    byte[] msg1 = msg(Config.OUT_BATCH_SIZE.getValue() - 2 * headerSize);
    // second message will go in zero-copy mode
    byte[] msg2 = msg(Config.OUT_BATCH_SIZE.getValue());
    exchange(sender, receiver, msg1, msg2, msg1, msg2);
    ZMQ.close(receiver);
    ZMQ.close(sender);
    ZMQ.term(ctx);
}

Example 70 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class CustomDecoderTest method testAssignCustomDecoder.

@SuppressWarnings("deprecation")
@Test
public void testAssignCustomDecoder() {
    Ctx ctx = ZMQ.createContext();
    SocketBase socket = ctx.createSocket(ZMQ.ZMQ_PAIR);
    boolean rc = socket.setSocketOpt(ZMQ.ZMQ_DECODER, CustomDecoder.class);
    assertThat(rc, is(true));
    ZMQ.close(socket);
    ZMQ.term(ctx);
}