Examples with Msg zmq.Msg used on opensource projects

Example 11 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class Dish method xleave.

@Override
protected boolean xleave(String group) {
    if (group.length() > Msg.MAX_GROUP_LENGTH) {
        errno.set(ZError.EINVAL);
        return false;
    }
    if (!subscriptions.remove(group)) {
        errno.set(ZError.EINVAL);
        return false;
    }
    Msg msg = new Msg();
    msg.initLeave();
    msg.setGroup(group);
    dist.sendToAll(msg);
    return true;
}

Example 12 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class Dish method sendSubscriptions.

private void sendSubscriptions(Pipe pipe) {
    for (String s : subscriptions) {
        Msg msg = new Msg();
        msg.initJoin();
        msg.setGroup(s);
        pipe.write(msg);
    }
    pipe.flush();
}

Example 13 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class Dish method xjoin.

@Override
protected boolean xjoin(String group) {
    if (group.length() > Msg.MAX_GROUP_LENGTH) {
        errno.set(ZError.EINVAL);
        return false;
    }
    // User cannot join same group twice
    if (!subscriptions.add(group)) {
        errno.set(ZError.EINVAL);
        return false;
    }
    Msg msg = new Msg();
    msg.initJoin();
    msg.setGroup(group);
    dist.sendToAll(msg);
    return true;
}

Example 14 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class Req method recvReplyPipe.

private Msg recvReplyPipe() {
    while (true) {
        ValueReference<Pipe> pipe = new ValueReference<>();
        Msg msg = super.recvpipe(pipe);
        if (msg == null) {
            return null;
        }
        if (replyPipe.get() == null || replyPipe.get() == pipe.get()) {
            return msg;
        }
    }
}

Example 15 with Msg

use of zmq.Msg in project jeromq by zeromq.

the class Req method xsend.

@Override
public boolean xsend(final Msg msg) {
    // we can't send another request.
    if (receivingReply) {
        if (strict) {
            errno.set(ZError.EFSM);
            return false;
        }
        receivingReply = false;
        messageBegins = true;
    }
    // First part of the request is the request identity.
    if (messageBegins) {
        replyPipe.set(null);
        if (requestIdFramesEnabled) {
            requestId++;
            final Msg id = new Msg(4);
            Wire.putUInt32(id.buf(), requestId);
            id.setFlags(Msg.MORE);
            boolean rc = super.sendpipe(id, replyPipe);
            if (!rc) {
                return false;
            }
        }
        Msg bottom = new Msg();
        bottom.setFlags(Msg.MORE);
        boolean rc = super.sendpipe(bottom, replyPipe);
        if (!rc) {
            return false;
        }
        assert (replyPipe.get() != null);
        messageBegins = false;
        // An hour later REQ sends a request to B. B's old reply is used.
        while (true) {
            Msg drop = super.xrecv();
            if (drop == null) {
                break;
            }
        }
    }
    boolean more = msg.hasMore();
    boolean rc = super.xsend(msg);
    if (!rc) {
        return false;
    }
    // If the request was fully sent, flip the FSM into reply-receiving state.
    if (!more) {
        receivingReply = true;
        messageBegins = true;
    }
    return true;
}