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zeromq POJO implementation
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/*
    Copyright other contributors as noted in the AUTHORS file.
    
    This file is part of 0MQ.

    0MQ is free software; you can redistribute it and/or modify it under
    the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    0MQ is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see .
*/
package zmq;

import java.net.SocketException;
import java.nio.channels.ClosedChannelException;


public class ZError  {


    public static class InstantiationException extends RuntimeException {
        private static final long serialVersionUID = -4404921838608052955L;
        
        public InstantiationException(Throwable cause) {
            super(cause);
        }
    }

    public static class IOException extends RuntimeException {
        private static final long serialVersionUID = 9202470691157986262L;

        public IOException(java.io.IOException e) {
            super(e);
        }
    }

    private static ThreadLocal errno = new ThreadLocal() {
        
        protected synchronized Integer initialValue() {
            return new Integer(0);
        }
    };
    
    private static ThreadLocal exc = new ThreadLocal();


    public static final int EINTR = 4;
    public static final int EACCESS = 13;
    public static final int EFAULT = 14;
    public static final int EINVAL = 22;
    public static final int EAGAIN = 35;
    public static final int EINPROGRESS = 36;
    public static final int EPROTONOSUPPORT = 43;
    public static final int ENOTSUP = 45;
    public static final int EADDRINUSE = 48;
    public static final int EADDRNOTAVAIL = 49;
    public static final int ENETDOWN = 50;
    public static final int ENOBUFS = 55;
    public static final int EISCONN = 56;
    public static final int ENOTCONN = 57;
    public static final int ECONNREFUSED = 61;
    public static final int EHOSTUNREACH = 65;
    
    private static final int ZMQ_HAUSNUMERO = 156384712;

    public static final int EFSM = ZMQ_HAUSNUMERO + 51;
    public static final int ENOCOMPATPROTO = ZMQ_HAUSNUMERO + 52;
    public static final int ETERM = ZMQ_HAUSNUMERO + 53;
    public static final int EMTHREAD = ZMQ_HAUSNUMERO + 54;

    public static final int EIOEXC = ZMQ_HAUSNUMERO + 105;
    public static final int ESOCKET = ZMQ_HAUSNUMERO + 106;
    public static final int EMFILE = ZMQ_HAUSNUMERO + 107;
    public static int errno () {
        return errno.get();
    }
    
    public static void errno (int code) {
        errno.set(code);
    }
    
    public static Throwable exc () {
        return exc.get();
    }
    
    public static void exc (java.io.IOException e) {
        if (e instanceof SocketException) {
            errno.set(ESOCKET);
        } else if (e instanceof ClosedChannelException) {
            errno.set(ENOTCONN);
        } else {
            errno.set(EIOEXC);
        }
        exc.set(e);
    }
    
    public static boolean is (int code) {
        switch(code) {
        case EINTR:
            return false;
        default:
            return errno.get() == code;
        }
        
    }

    public static void clear () {
        errno.set(0);
    }
    

}