1 /* 2 * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package java.net; 26 27 import java.io.IOException; 28 29 /* 30 * On Unix systems we simply delegate to native methods. 31 * 32 * @author Chris Hegarty 33 */ 34 35 class PlainDatagramSocketImpl extends AbstractPlainDatagramSocketImpl 36 { 37 static { 38 init(); 39 } 40 41 protected synchronized native void bind0(int lport, InetAddress laddr) 42 throws SocketException; 43 44 protected native void send(DatagramPacket p) throws IOException; 45 46 protected synchronized native int peek(InetAddress i) throws IOException; 47 48 protected synchronized native int peekData(DatagramPacket p) throws IOException; 49 50 protected synchronized native void receive0(DatagramPacket p) 51 throws IOException; 52 53 protected native void setTimeToLive(int ttl) throws IOException; 54 55 protected native int getTimeToLive() throws IOException; 56 57 protected native void setTTL(byte ttl) throws IOException; 58 59 protected native byte getTTL() throws IOException; 60 61 protected native void join(InetAddress inetaddr, NetworkInterface netIf) 62 throws IOException; 63 64 protected native void leave(InetAddress inetaddr, NetworkInterface netIf) 65 throws IOException; 66 67 protected native void datagramSocketCreate() throws SocketException; 68 69 protected native void datagramSocketClose(); 70 71 protected native void socketSetOption(int opt, Object val) 72 throws SocketException; 73 74 protected native Object socketGetOption(int opt) throws SocketException; 75 76 protected native void connect0(InetAddress address, int port) throws SocketException; 77 78 protected native void disconnect0(int family); 79 80 /** 81 * Perform class load-time initializations. 82 */ 83 private native static void init(); 84 }