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/** 23547b0acae14981581d050c2c3d674cc06f1c3cf5Elliott Hughes * Non-standard class for creating an inbound UNIX-domain socket 24547b0acae14981581d050c2c3d674cc06f1c3cf5Elliott Hughes * in the Linux abstract namespace. 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class LocalServerSocket { 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final LocalSocketImpl impl; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final LocalSocketAddress localAddress; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50 seems a bit much, but it's what was here */ 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int LISTEN_BACKLOG = 50; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34547b0acae14981581d050c2c3d674cc06f1c3cf5Elliott Hughes * Creates a new server socket listening at specified name. 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * On the Android platform, the name is created in the Linux 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * abstract namespace (instead of on the filesystem). 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param name address for socket 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LocalServerSocket(String name) throws IOException 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl = new LocalSocketImpl(); 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45e7d309a929bf87a5752cd1fb2d48c72e47a671a2Mike Lockwood impl.create(LocalSocket.SOCKET_STREAM); 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project localAddress = new LocalSocketAddress(name); 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.bind(localAddress); 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.listen(LISTEN_BACKLOG); 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Create a LocalServerSocket from a file descriptor that's already 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * been created and bound. listen() will be called immediately on it. 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used for cases where file descriptors are passed in via environment 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * variables 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fd bound file descriptor 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LocalServerSocket(FileDescriptor fd) throws IOException 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl = new LocalSocketImpl(fd); 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.listen(LISTEN_BACKLOG); 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project localAddress = impl.getSockAddress(); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Obtains the socket's local address 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return local address 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LocalSocketAddress getLocalSocketAddress() 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return localAddress; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Accepts a new connection to the socket. Blocks until a new 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * connection arrives. 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return a socket representing the new connection. 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LocalSocket accept() throws IOException 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LocalSocketImpl acceptedImpl = new LocalSocketImpl(); 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.accept (acceptedImpl); 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 92e7d309a929bf87a5752cd1fb2d48c72e47a671a2Mike Lockwood return new LocalSocket(acceptedImpl, LocalSocket.SOCKET_UNKNOWN); 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns file descriptor or null if not yet open/already closed 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return fd or null 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public FileDescriptor getFileDescriptor() { 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return impl.getFileDescriptor(); 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Closes server socket. 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void close() throws IOException 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project impl.close(); 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 114