1 /* 2 * Copyright (c) 2007, 2008, 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 import java.io.FileDescriptor; 29 import java.util.Set; 30 import java.util.HashSet; 31 import java.util.Collections; 32 import jdk.net.*; 33 34 import static sun.net.ExtendedOptionsImpl.*; 35 36 /* 37 * On Unix systems we simply delegate to native methods. 38 * 39 * @author Chris Hegarty 40 */ 41 42 class PlainSocketImpl extends AbstractPlainSocketImpl 43 { 44 static { 45 initProto(); 46 } 47 48 /** 49 * Constructs an empty instance. 50 */ 51 PlainSocketImpl() { } 52 53 /** 54 * Constructs an instance with the given file descriptor. 55 */ 56 PlainSocketImpl(FileDescriptor fd) { 57 this.fd = fd; 58 } 59 60 protected <T> void setOption(SocketOption<T> name, T value) throws IOException { 61 if (!name.equals(ExtendedSocketOptions.SO_FLOW_SLA)) { 62 super.setOption(name, value); 63 } else { 64 if (isClosedOrPending()) { 65 throw new SocketException("Socket closed"); 66 } 67 checkSetOptionPermission(name); 68 checkValueType(value, SocketFlow.class); 69 setFlowOption(getFileDescriptor(), (SocketFlow)value); 70 } 71 } 72 73 @SuppressWarnings("unchecked") 74 protected <T> T getOption(SocketOption<T> name) throws IOException { 75 if (!name.equals(ExtendedSocketOptions.SO_FLOW_SLA)) { 76 return super.getOption(name); 77 } 78 if (isClosedOrPending()) { 79 throw new SocketException("Socket closed"); 80 } 81 checkGetOptionPermission(name); 82 SocketFlow flow = SocketFlow.create(); 83 getFlowOption(getFileDescriptor(), flow); 84 return (T)flow; 85 } 86 87 protected Set<SocketOption<?>> supportedOptions() { 88 HashSet<SocketOption<?>> options = new HashSet<>( 89 super.supportedOptions()); 90 91 if (getSocket() != null && flowSupported()) { 92 options.add(ExtendedSocketOptions.SO_FLOW_SLA); 93 } 94 return options; 95 } 96 97 protected void socketSetOption(int opt, boolean b, Object val) throws SocketException { 98 try { 99 socketSetOption0(opt, b, val); 100 } catch (SocketException se) { 101 if (socket == null || !socket.isConnected()) 102 throw se; 103 } 104 } 105 106 native void socketCreate(boolean isServer) throws IOException; 107 108 native void socketConnect(InetAddress address, int port, int timeout) 109 throws IOException; 110 111 native void socketBind(InetAddress address, int port) 112 throws IOException; 113 114 native void socketListen(int count) throws IOException; 115 116 native void socketAccept(SocketImpl s) throws IOException; 117 118 native int socketAvailable() throws IOException; 119 120 native void socketClose0(boolean useDeferredClose) throws IOException; 121 122 native void socketShutdown(int howto) throws IOException; 123 124 static native void initProto(); 125 126 native void socketSetOption0(int cmd, boolean on, Object value) 127 throws SocketException; 128 129 native int socketGetOption(int opt, Object iaContainerObj) throws SocketException; 130 131 native void socketSendUrgentData(int data) throws IOException; 132 }