19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.net; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.FileDescriptor; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * non-standard class for creating inbound UNIX-domain socket 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on the Android platform, this is created in the Linux non-filesystem 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * namespace. 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * On simulator platforms, this may be created in a temporary directory on 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the filesystem 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class LocalServerSocket { 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final LocalSocketImpl impl; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final LocalSocketAddress localAddress; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50 seems a bit much, but it's what was here */ 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int LISTEN_BACKLOG = 50; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Crewates a new server socket listening at specified name. 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * On the Android platform, the name is created in the Linux 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * abstract namespace (instead of on the filesystem). 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param name address for socket 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LocalServerSocket(String name) throws IOException 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl = new LocalSocketImpl(); 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.create(true); 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project localAddress = new LocalSocketAddress(name); 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.bind(localAddress); 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.listen(LISTEN_BACKLOG); 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Create a LocalServerSocket from a file descriptor that's already 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * been created and bound. listen() will be called immediately on it. 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used for cases where file descriptors are passed in via environment 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * variables 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fd bound file descriptor 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LocalServerSocket(FileDescriptor fd) throws IOException 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl = new LocalSocketImpl(fd); 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.listen(LISTEN_BACKLOG); 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project localAddress = impl.getSockAddress(); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Obtains the socket's local address 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return local address 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LocalSocketAddress getLocalSocketAddress() 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return localAddress; 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Accepts a new connection to the socket. Blocks until a new 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * connection arrives. 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return a socket representing the new connection. 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LocalSocket accept() throws IOException 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LocalSocketImpl acceptedImpl = new LocalSocketImpl(); 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.accept (acceptedImpl); 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LocalSocket(acceptedImpl); 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns file descriptor or null if not yet open/already closed 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return fd or null 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public FileDescriptor getFileDescriptor() { 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return impl.getFileDescriptor(); 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Closes server socket. 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void close() throws IOException 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.close(); 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 118