Examples with Msg zmq.Msg used on opensource projects

Example 31 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class ZFrame method recvFrame.

/**
 * Receive a new frame off the socket, Returns newly-allocated frame, or
 * null if there was no input waiting, or if the read was interrupted.
 * @param   socket
 *              Socket to read from
 * @param   flags
 *              Pass flags to 0MQ socket.recv call
 * @return
 *              received frame, else null
 */
public static ZFrame recvFrame(Socket socket, int flags) {
    final SocketBase base = socket.base();
    zmq.Msg msg = base.recv(flags);
    if (msg == null) {
        // Check to see if there was an error in recv
        socket.mayRaise();
        return null;
    }
    ZFrame frame = new ZFrame(msg);
    frame.setGroup(msg.getGroup());
    return frame;
}

Example 32 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class StreamEngine method mechanismReady.

private void mechanismReady() {
    if (options.heartbeatInterval > 0) {
        ioObject.addTimer(options.heartbeatInterval, HEARTBEAT_IVL_TIMER_ID);
        hasHeartbeatTimer = true;
    }
    if (options.recvIdentity) {
        Msg identity = mechanism.peerIdentity();
        boolean rc = session.pushMsg(identity);
        if (!rc && errno.is(ZError.EAGAIN)) {
            // so we can just bail out of the identity set.
            return;
        }
        assert (rc);
        session.flush();
    }
    nextMsg = pullAndEncode;
    processMsg = writeCredential;
    // Compile metadata.
    assert (metadata == null);
    metadata = new Metadata();
    // If we have a peer_address, add it to metadata
    if (peerAddress != null && !peerAddress.address().isEmpty()) {
        metadata.set(Metadata.PEER_ADDRESS, peerAddress.address());
    }
    // Add ZAP properties.
    metadata.set(mechanism.zapProperties);
    // Add ZMTP properties.
    metadata.set(mechanism.zmtpProperties);
    if (metadata.isEmpty()) {
        metadata = null;
    }
}

Example 33 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class StreamEngine method writeCredential.

private boolean writeCredential(Msg msg) {
    assert (mechanism != null);
    assert (session != null);
    Blob credential = mechanism.getUserId();
    if (credential != null && credential.size() > 0) {
        Msg cred = new Msg(credential.size());
        cred.put(credential.data(), 0, credential.size());
        cred.setFlags(Msg.CREDENTIAL);
        boolean rc = session.pushMsg(cred);
        if (!rc) {
            return false;
        }
    }
    processMsg = decodeAndPush;
    return decodeAndPush.apply(msg);
}

Example 34 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class V2Decoder method allocate.

@Override
protected Msg allocate(int size) {
    Msg msg = super.allocate(size);
    msg.setFlags(msgFlags);
    return msg;
}

Example 35 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class ReqSpecTest method messageFormat.

private void messageFormat(Ctx ctx, String address, int bindType, int connectType) throws IOException, InterruptedException {
    // Server socket will accept connections
    SocketBase req = ZMQ.socket(ctx, bindType);
    assertThat(req, notNullValue());
    boolean rc = ZMQ.bind(req, address);
    assertThat(rc, is(true));
    SocketBase router = ZMQ.socket(ctx, connectType);
    assertThat(router, notNullValue());
    String host = (String) ZMQ.getSocketOptionExt(req, ZMQ.ZMQ_LAST_ENDPOINT);
    assertThat(host, notNullValue());
    rc = ZMQ.connect(router, host);
    assertThat(rc, is(true));
    // Send a multi-part request.
    sendSeq(req, "ABC", "DEF");
    // Receive peer identity
    Msg msg = ZMQ.recv(router, 0);
    assertThat(msg, notNullValue());
    assertThat(msg.size() > 0, is(true));
    Msg peerId = msg;
    int more = ZMQ.getSocketOption(router, ZMQ.ZMQ_RCVMORE);
    assertThat(more, is(1));
    // Receive the rest.
    recvSeq(router, null, "ABC", "DEF");
    // Send back a single-part reply.
    int ret = ZMQ.send(router, peerId, ZMQ.ZMQ_SNDMORE);
    assertThat(ret, is(peerId.size()));
    sendSeq(router, null, "GHI");
    // Receive reply.
    recvSeq(req, "GHI");
    ZMQ.closeZeroLinger(req);
    ZMQ.closeZeroLinger(router);
    // Wait for disconnects.
    ZMQ.msleep(100);
}