| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.net; |
| |
| import java.io.IOException; |
| import java.io.FileDescriptor; |
| |
| /** |
| * non-standard class for creating inbound UNIX-domain socket |
| * on the Android platform, this is created in the Linux non-filesystem |
| * namespace. |
| * |
| * On simulator platforms, this may be created in a temporary directory on |
| * the filesystem |
| */ |
| public class LocalServerSocket { |
| private final LocalSocketImpl impl; |
| private final LocalSocketAddress localAddress; |
| |
| /** 50 seems a bit much, but it's what was here */ |
| private static final int LISTEN_BACKLOG = 50; |
| |
| /** |
| * Crewates a new server socket listening at specified name. |
| * On the Android platform, the name is created in the Linux |
| * abstract namespace (instead of on the filesystem). |
| * |
| * @param name address for socket |
| * @throws IOException |
| */ |
| public LocalServerSocket(String name) throws IOException |
| { |
| impl = new LocalSocketImpl(); |
| |
| impl.create(true); |
| |
| localAddress = new LocalSocketAddress(name); |
| impl.bind(localAddress); |
| |
| impl.listen(LISTEN_BACKLOG); |
| } |
| |
| /** |
| * Create a LocalServerSocket from a file descriptor that's already |
| * been created and bound. listen() will be called immediately on it. |
| * Used for cases where file descriptors are passed in via environment |
| * variables |
| * |
| * @param fd bound file descriptor |
| * @throws IOException |
| */ |
| public LocalServerSocket(FileDescriptor fd) throws IOException |
| { |
| impl = new LocalSocketImpl(fd); |
| impl.listen(LISTEN_BACKLOG); |
| localAddress = impl.getSockAddress(); |
| } |
| |
| /** |
| * Obtains the socket's local address |
| * |
| * @return local address |
| */ |
| public LocalSocketAddress getLocalSocketAddress() |
| { |
| return localAddress; |
| } |
| |
| /** |
| * Accepts a new connection to the socket. Blocks until a new |
| * connection arrives. |
| * |
| * @return a socket representing the new connection. |
| * @throws IOException |
| */ |
| public LocalSocket accept() throws IOException |
| { |
| LocalSocketImpl acceptedImpl = new LocalSocketImpl(); |
| |
| impl.accept (acceptedImpl); |
| |
| return new LocalSocket(acceptedImpl); |
| } |
| |
| /** |
| * Returns file descriptor or null if not yet open/already closed |
| * |
| * @return fd or null |
| */ |
| public FileDescriptor getFileDescriptor() { |
| return impl.getFileDescriptor(); |
| } |
| |
| /** |
| * Closes server socket. |
| * |
| * @throws IOException |
| */ |
| public void close() throws IOException |
| { |
| impl.close(); |
| } |
| } |