| /* LocalSocketImpl.java -- a unix domain client socket implementation. |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is a part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or (at |
| your option) any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 |
| USA |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.java.net.local; |
| |
| import java.io.FileDescriptor; |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import java.net.InetAddress; |
| import java.net.SocketAddress; |
| import java.net.SocketException; |
| import java.net.SocketImpl; |
| |
| final class LocalSocketImpl extends SocketImpl |
| { |
| |
| // Fields. |
| // ------------------------------------------------------------------------- |
| |
| private boolean created; |
| private InputStream in; |
| private OutputStream out; |
| // Package private to avoid synthetic accessor method. |
| int socket_fd; |
| private LocalSocketAddress local; |
| private LocalSocketAddress remote; |
| |
| static |
| { |
| try |
| { |
| System.loadLibrary ("javanet"); |
| } |
| catch (Exception x) |
| { |
| x.printStackTrace (); |
| } |
| } |
| |
| // Constructor. |
| // ------------------------------------------------------------------------- |
| |
| LocalSocketImpl () |
| { |
| this (false); |
| } |
| |
| LocalSocketImpl (boolean nocreate) |
| { |
| created = nocreate; |
| socket_fd = -1; |
| fd = new FileDescriptor (); |
| } |
| |
| // Instance methods. |
| // ------------------------------------------------------------------------- |
| |
| public void setOption (int opt, Object value) throws SocketException |
| { |
| throw new SocketException ("local sockets do not support options"); |
| } |
| |
| public Object getOption (int opt) throws SocketException |
| { |
| throw new SocketException ("local sockets do not support options"); |
| } |
| |
| protected native void create (boolean stream) throws IOException; |
| protected native void listen (int timeout) throws IOException; |
| protected native void accept (LocalSocketImpl socket) throws IOException; |
| protected native int available (int fd) throws IOException; |
| protected native void close () throws IOException; |
| protected native void sendUrgentData (int data) throws IOException; |
| protected native void shutdownInput () throws IOException; |
| protected native void shutdownOutput () throws IOException; |
| |
| native void unlink () throws IOException; |
| native void localBind (LocalSocketAddress addr) throws IOException; |
| native void localConnect (LocalSocketAddress addr) throws IOException; |
| native int read (int fd, byte[] buf, int off, int len) throws IOException; |
| native void write (int fd, byte[] buf, int off, int len) throws IOException; |
| |
| protected int available() |
| throws IOException |
| { |
| return available(socket_fd); |
| } |
| |
| void doCreate () throws IOException |
| { |
| if (!created) |
| { |
| create (true); |
| } |
| } |
| |
| LocalSocketAddress getLocalAddress () |
| { |
| return local; |
| } |
| |
| LocalSocketAddress getRemoteAddress () |
| { |
| return remote; |
| } |
| |
| protected InputStream getInputStream() |
| { |
| if (in == null) |
| { |
| in = new LocalInputStream (this); |
| } |
| |
| return in; |
| } |
| |
| protected OutputStream getOutputStream() |
| { |
| if (out == null) |
| { |
| out = new LocalOutputStream (this); |
| } |
| |
| return out; |
| } |
| |
| protected void accept (SocketImpl impl) throws IOException |
| { |
| if (! (impl instanceof LocalSocketImpl)) |
| { |
| throw new IllegalArgumentException ("not a local socket"); |
| } |
| accept ((LocalSocketImpl) impl); |
| } |
| |
| protected void connect (String host, int port) throws IOException |
| { |
| throw new SocketException ("this is a local socket"); |
| } |
| |
| protected void connect (InetAddress addr, int port) throws IOException |
| { |
| throw new SocketException ("this is a local socket"); |
| } |
| |
| protected void connect(SocketAddress addr, int timeout) throws IOException |
| { |
| if (! (addr instanceof LocalSocketAddress)) |
| { |
| throw new SocketException ("address is not local"); |
| } |
| localConnect ((LocalSocketAddress) addr); |
| } |
| |
| protected void bind (InetAddress addr, int port) throws IOException |
| { |
| throw new SocketException ("this is a local socket"); |
| } |
| |
| protected void bind (SocketAddress addr) throws IOException |
| { |
| if (! (addr instanceof LocalSocketAddress)) |
| { |
| throw new SocketException ("address is not local"); |
| } |
| localBind ((LocalSocketAddress) addr); |
| } |
| |
| // Inner classes. |
| // ------------------------------------------------------------------------- |
| |
| class LocalInputStream extends InputStream |
| { |
| |
| // Field. |
| // ----------------------------------------------------------------------- |
| |
| private final LocalSocketImpl impl; |
| |
| // Constructor. |
| // ----------------------------------------------------------------------- |
| |
| LocalInputStream (LocalSocketImpl impl) |
| { |
| this.impl = impl; |
| } |
| |
| // Instance methods. |
| // ----------------------------------------------------------------------- |
| |
| public int available () throws IOException |
| { |
| return impl.available(); |
| } |
| |
| public boolean markSupported () |
| { |
| return false; |
| } |
| |
| public void mark (int readLimit) |
| { |
| } |
| |
| public void reset () throws IOException |
| { |
| throw new IOException ("mark/reset not supported"); |
| } |
| |
| public void close () throws IOException |
| { |
| impl.close(); |
| } |
| |
| public int read () throws IOException |
| { |
| byte[] buf = new byte[1]; |
| int ret = read (buf); |
| if (ret != -1) |
| { |
| return buf[0] & 0xFF; |
| } |
| else |
| { |
| return -1; |
| } |
| } |
| |
| public int read (byte[] buf) throws IOException |
| { |
| return read (buf, 0, buf.length); |
| } |
| |
| public int read (byte[] buf, int off, int len) throws IOException |
| { |
| int ret = impl.read (socket_fd, buf, off, len); |
| |
| if (ret == 0) |
| { |
| return -1; |
| } |
| |
| return ret; |
| } |
| } |
| |
| class LocalOutputStream extends OutputStream |
| { |
| |
| // Field. |
| // ----------------------------------------------------------------------- |
| |
| private final LocalSocketImpl impl; |
| |
| // Constructor. |
| // ----------------------------------------------------------------------- |
| |
| LocalOutputStream (LocalSocketImpl impl) |
| { |
| this.impl = impl; |
| } |
| |
| // Instance methods. |
| // ----------------------------------------------------------------------- |
| |
| public void close () throws IOException |
| { |
| impl.close (); |
| } |
| |
| public void flush () throws IOException |
| { |
| } |
| |
| public void write (int b) throws IOException |
| { |
| byte[] buf = new byte [1]; |
| buf[0] = (byte) b; |
| write (buf); |
| } |
| |
| public void write (byte[] buf) throws IOException |
| { |
| write (buf, 0, buf.length); |
| } |
| |
| public void write (byte[] buf, int off, int len) throws IOException |
| { |
| impl.write (socket_fd, buf, off, len); |
| } |
| } |
| } |