com.github.unidbg.ios.file.LocalUdpSocket Maven / Gradle / Ivy

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package com.github.unidbg.ios.file;

import com.github.unidbg.Emulator;
import com.github.unidbg.file.FileIO;
import com.sun.jna.Pointer;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.IOException;
import java.net.InetSocketAddress;

public abstract class LocalUdpSocket extends SocketIO implements FileIO {

    private static final Log log = LogFactory.getLog(LocalUdpSocket.class);

    protected interface UdpHandler {
        void handle(byte[] request) throws IOException;
    }

    protected final Emulator emulator;

    protected LocalUdpSocket(Emulator emulator) {
        this.emulator = emulator;
    }

    protected UdpHandler handler;

    @Override
    public void close() {
        handler = null;
    }

    @Override
    public int write(byte[] data) {
        try {
            handler.handle(data);
            return data.length;
        } catch (IOException e) {
            throw new IllegalStateException(e);
        }
    }

    protected abstract int connect(String path);

    @Override
    public int connect(Pointer addr, int addrlen) {
        short sa_family = addr.getShort(0);
        if (sa_family != AF_LOCAL) {
            throw new UnsupportedOperationException("sa_family=" + sa_family);
        }

        String path = addr.getString(2);
        log.debug("connect sa_family=" + sa_family + ", path=" + path);

        return connect(path);
    }

    @Override
    protected int getTcpNoDelay() {
        throw new AbstractMethodError();
    }

    @Override
    protected void setTcpNoDelay(int tcpNoDelay) {
        throw new AbstractMethodError();
    }

    @Override
    protected void setReuseAddress(int reuseAddress) {
        throw new AbstractMethodError();
    }

    @Override
    protected void setKeepAlive(int keepAlive) {
        throw new AbstractMethodError();
    }

    @Override
    protected void setSocketRecvBuf(int recvBuf) {
        throw new AbstractMethodError();
    }

    @Override
    protected InetSocketAddress getLocalSocketAddress() {
        throw new AbstractMethodError();
    }

    @Override
    protected int connect_ipv6(Pointer addr, int addrlen) {
        throw new AbstractMethodError();
    }

    @Override
    protected int connect_ipv4(Pointer addr, int addrlen) {
        throw new AbstractMethodError();
    }

}