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13
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1 package wifibroadcast;
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2
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3 import java.io.IOException;
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4 import java.net.InetSocketAddress;
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5 import java.net.StandardProtocolFamily;
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6 import java.net.StandardSocketOptions;
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7 import java.nio.channels.SelectionKey;
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8 import java.nio.channels.spi.SelectorProvider;
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9
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10 public class WifiBroadcastChannel extends WifiMulticastChannel {
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11
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12 public WifiBroadcastChannel(int id, int port, SocketType sender) throws IOException {
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13 // join multicast group on this interface, and also use this
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14 // interface for outgoing multicast datagrams
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15 selectMode = false;
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14
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16 selector = SelectorProvider.provider().openSelector();
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17 dc = SelectorProvider.provider().openDatagramChannel(StandardProtocolFamily.INET);
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18 dc.setOption(StandardSocketOptions.SO_REUSEADDR, true);
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13
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19 mAddr = WifiBroadcast.getBroadcast();
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20 sAddr = new InetSocketAddress(mAddr,port);
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21 dc.setOption(StandardSocketOptions.SO_BROADCAST, true);
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22 if (sender == SocketType.Receiver) {
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23 dc.bind(new InetSocketAddress(port));
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24 if (selectMode) {
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25 dc.configureBlocking(false);
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26 dc.register(selector, SelectionKey.OP_READ);
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27 }
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28 }
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29 }
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30
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31
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32 }
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