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Pure Java implementation of libzmq
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package zmq.socket.scattergather;
import zmq.Ctx;
import zmq.Msg;
import zmq.SocketBase;
import zmq.ZError;
import zmq.ZMQ;
import zmq.pipe.Pipe;
import zmq.socket.LB;
public class Scatter extends SocketBase
{
// Load balancer managing the outbound pipes.
private final LB lb;
// Holds the prefetched message.
public Scatter(Ctx parent, int tid, int sid)
{
super(parent, tid, sid, true);
options.type = ZMQ.ZMQ_SCATTER;
lb = new LB();
}
@Override
protected void xattachPipe(Pipe pipe, boolean subscribe2all, boolean isLocallyInitiated)
{
assert (pipe != null);
// Don't delay pipe termination as there is no one
// to receive the delimiter.
pipe.setNoDelay();
lb.attach(pipe);
}
@Override
protected boolean xsend(Msg msg)
{
// SCATTER sockets do not allow multipart data (ZMQ_SNDMORE)
if (msg.hasMore()) {
errno.set(ZError.EINVAL);
return false;
}
return lb.sendpipe(msg, errno, null);
}
@Override
protected boolean xhasOut()
{
return lb.hasOut();
}
@Override
protected void xwriteActivated(Pipe pipe)
{
lb.activated(pipe);
}
@Override
protected void xpipeTerminated(Pipe pipe)
{
lb.terminated(pipe);
}
}
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