ByteBufferImpl.java, [...]: New files.

2002-11-18  Michael Koch <konqueror@gmx.de>

	* gnu/java/nio/ByteBufferImpl.java,
	gnu/java/nio/CharBufferImpl.java,
	gnu/java/nio/DatagramChannelImpl.java,
	gnu/java/nio/DoubleBufferImpl.java,
	gnu/java/nio/FileChannelImpl.java,
	gnu/java/nio/FloatBufferImpl.java,
	gnu/java/nio/IntBufferImpl.java,
	gnu/java/nio/LongBufferImpl.java,
	gnu/java/nio/PipeImpl.java,
	gnu/java/nio/SelectionKeyImpl.java,
	gnu/java/nio/SelectorImpl.java,
	gnu/java/nio/SelectorProviderImpl.java,
	gnu/java/nio/ServerSocketChannelImpl.java,
	gnu/java/nio/ShortBufferImpl.java,
	gnu/java/nio/SocketChannelImpl.java,
	java/nio/DoubleBuffer.java,
	java/nio/FloatBuffer.java,
	java/nio/IntBuffer.java,
	java/nio/LongBuffer.java,
	java/nio/ShortBuffer.java,
	java/nio/channels/FileChannel.java: New files.

From-SVN: r59216

libjava/ChangeLog

 2002-11-18  Michael Koch <konqueror@gmx.de>
 
+	* gnu/java/nio/ByteBufferImpl.java,
+	gnu/java/nio/CharBufferImpl.java,
+	gnu/java/nio/DatagramChannelImpl.java,
+	gnu/java/nio/DoubleBufferImpl.java,
+	gnu/java/nio/FileChannelImpl.java,
+	gnu/java/nio/FloatBufferImpl.java,
+	gnu/java/nio/IntBufferImpl.java,
+	gnu/java/nio/LongBufferImpl.java,
+	gnu/java/nio/PipeImpl.java,
+	gnu/java/nio/SelectionKeyImpl.java,
+	gnu/java/nio/SelectorImpl.java,
+	gnu/java/nio/SelectorProviderImpl.java,
+	gnu/java/nio/ServerSocketChannelImpl.java,
+	gnu/java/nio/ShortBufferImpl.java,
+	gnu/java/nio/SocketChannelImpl.java,
+	java/nio/DoubleBuffer.java,
+	java/nio/FloatBuffer.java,
+	java/nio/IntBuffer.java,
+	java/nio/LongBuffer.java,
+	java/nio/ShortBuffer.java,
+	java/nio/channels/FileChannel.java: New files.
+
+2002-11-18  Michael Koch <konqueror@gmx.de>
+
 	* Makefile.am (ordinary_java_source_files):
 	Added java/nio/ReadOnlyBufferException.java and
 	java/nio/channels/ClosedSelectorException.java.

libjava/gnu/java/nio/DatagramChannelImpl.java

+/* DatagramChannelImpl.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.nio;
+
+import java.net.DatagramSocket;
+import java.net.SocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.channels.DatagramChannel;
+import java.nio.channels.spi.SelectorProvider;
+
+public class DatagramChannelImpl extends DatagramChannel
+{
+  protected DatagramChannelImpl (SelectorProvider provider)
+  {
+    super (provider);
+  }
+    
+  protected void implCloseSelectableChannel ()
+  {
+  }
+    
+  protected void implConfigureBlocking (boolean block)
+  {
+  }
+
+  public int write (ByteBuffer src)
+  {
+    return 0;
+  }
+
+  public long write (ByteBuffer[] srcs, int offset, int length)
+  {
+    return 0;
+  }
+
+  public int read (ByteBuffer dst)
+  {
+    return 0;
+  }
+    
+  public DatagramChannel connect (SocketAddress remote)
+  {
+    return null;
+  }
+    
+  public DatagramChannel disconnect ()
+  {
+    return null;
+  }
+    
+  public boolean isConnected ()
+  {
+    return false;
+  }
+    
+  public long read (ByteBuffer[] dsts, int offset, int length)
+  {
+    return 0;
+  }
+    
+  public SocketAddress receive (ByteBuffer dst)
+  {
+    return null;
+  }
+    
+  public int send (ByteBuffer src, SocketAddress target)
+  {
+    return 0;
+  }
+    
+  public DatagramSocket socket ()
+  {
+    return null;
+  }
+}

libjava/gnu/java/nio/FileChannelImpl.java

+/* FileChannelImpl.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.nio;
+
+import java.io.EOFException;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.FileChannel;
+
+/**
+ * This file is not user visible !
+ * But alas, Java does not have a concept of friendly packages
+ * so this class is public. 
+ * Instances of this class are created by invoking getChannel
+ * Upon a Input/Output/RandomAccessFile object.
+ */
+
+public class FileChannelImpl extends FileChannel
+{
+  public long address;
+  public int length;
+  public int fd;
+  public MappedByteBuffer buf;
+  public Object file_obj; // just to keep it live...
+
+  /**
+   * This method came from java.io.RandomAccessFile
+   * It is private there so we will repeat it here.
+   */
+//   private native long lengthInternal (int native_fd) throws IOException;
+  private long lengthInternal (int native_fd) throws IOException
+  {
+    return 0;
+  };
+
+  public FileChannelImpl (int fd, Object obj)
+  {
+    this.fd = fd;
+    this.file_obj = obj;
+  }
+
+  public long size () throws IOException
+  {
+    return lengthInternal (fd);
+  }
+    
+  protected void implCloseChannel()  throws IOException
+  {
+    if (address != 0)
+	    {
+        nio_unmmap_file (fd, address, (int) length);
+	    }
+
+    // FIXME
+    fd = 0;
+
+    if (file_obj instanceof RandomAccessFile)
+	    {
+        RandomAccessFile o = (RandomAccessFile) file_obj;
+        o.close();
+	    }
+    else if (file_obj instanceof FileInputStream)
+	    {
+        FileInputStream o = (FileInputStream) file_obj;
+        o.close();
+	    }
+    else if (file_obj instanceof FileOutputStream)
+	    {
+        FileOutputStream o = (FileOutputStream) file_obj;
+        o.close();
+	    }
+  }
+
+  public int read (ByteBuffer dst) throws IOException
+  {
+    int w = 0;
+    int s = (int)size();
+
+    if (buf == null)
+	    {
+        throw new EOFException("file not mapped");
+	    }
+
+    for (int i=0; i<s; i++)
+	    {
+        dst.put( buf.get() );
+	    }
+
+    return s;
+  }
+
+  public long read (ByteBuffer[] dsts) throws IOException
+  {
+    return read (dsts, 0, dsts.length);
+  }
+
+  public long read (ByteBuffer[] dsts, int offset, int length)
+    throws IOException
+  {
+    long result = 0;
+
+    for (int i = offset; i < offset + length; i++)
+	    {
+        result += write (dsts[i]);
+	    }
+
+    return result;
+  }
+
+  public int write (ByteBuffer src) throws IOException
+  {
+    int w = 0;
+
+    if (buf == null)
+	    {
+        throw new EOFException ("file not mapped");
+	    }
+
+    while (src.hasRemaining ())
+	    {
+        buf.put (src.get ());
+        w++;
+	    }
+
+    return w;
+  }
+    
+  public long write(ByteBuffer[] srcs, int offset, int length)
+    throws IOException
+  {
+    long res = 0;
+
+    for (int i = offset;i < offset + length;i++)
+	    {
+        res += write (srcs[i]);
+	    }
+	return res;
+    }
+				   
+  public MappedByteBuffer map (FileChannel.MapMode mode, long position,
+                               long size)
+    throws IOException
+  {
+//     int cmode = mode.m;
+//     address = nio_mmap_file (fd, position, size, cmode);
+//     length = size;
+//     buf = new MappedByteFileBuffer (this);
+//     return buf;
+    return null;
+  }
+
+  static MappedByteBuffer create_direct_mapped_buffer (long address,
+                                                       long length)
+  {
+//     FileChannelImpl ch = new FileChannelImpl (-1, null);
+//     ch.address = address;
+//     ch.length = (int) length;
+//     ch.buf = new MappedByteFileBuffer (ch);
+//     return ch.buf;			 
+    return null;
+  }
+
+  public long write (ByteBuffer[] srcs)
+    throws IOException
+  {
+    return write (srcs, 0, srcs.length);
+  }
+				   
+  /**
+   * msync with the disk
+   */
+  public void force (boolean metaData)
+  {
+    nio_msync (fd, address, length);
+  }
+
+//   static native long nio_mmap_file (int fd, long pos, int size, int mode);
+
+//   static native void nio_unmmap_file (int fd, long address, int size);
+
+//   static native void nio_msync (int fd, long address, int length);
+
+  static long nio_mmap_file (int fd, long pos, int size, int mode)
+  {
+    return 0;
+  }
+
+  static void nio_unmmap_file (int fd, long address, int size)
+  {
+  };
+
+  static void nio_msync (int fd, long address, int length)
+  {
+  };
+}

libjava/gnu/java/nio/PipeImpl.java

+/* PipeImpl.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.nio;
+
+import java.nio.channels.Pipe;
+
+class PipeImpl extends Pipe
+{
+  public PipeImpl()
+  {
+  }
+    
+  public Pipe.SinkChannel sink()
+  {
+    return null;
+  }
+
+  public Pipe.SourceChannel source()
+  {
+    return null;
+  }
+}

libjava/gnu/java/nio/SelectionKeyImpl.java

+/* SelectionKeyImpl.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.nio;
+
+import java.nio.channels.SelectableChannel;
+import java.nio.channels.SelectionKey;
+import java.nio.channels.Selector;
+import java.nio.channels.spi.AbstractSelectionKey;
+
+public class SelectionKeyImpl extends AbstractSelectionKey
+{
+  int fd, ops;
+  SelectorImpl impl;
+  SelectableChannel ch;
+
+  public SelectionKeyImpl(SelectableChannel ch, SelectorImpl impl, int fd)
+  {
+    this.ch  = ch;
+    this.impl = impl;
+    this.fd  = fd;
+  }
+
+  public SelectableChannel channel ()
+  {
+    return ch;
+  }
+
+  public int readyOps ()
+  {
+    return 0;
+  }
+
+  public int interestOps ()
+  {
+    return ops;    
+  }
+
+  public SelectionKey interestOps (int ops)
+  {
+    this.ops = ops;
+    return this;
+  }
+    
+  public Selector selector ()
+  {
+    return impl;
+  }
+}

libjava/gnu/java/nio/SelectorImpl.java

+/* SelectorImpl.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.nio;
+
+import java.nio.channels.ClosedSelectorException;
+import java.nio.channels.SelectableChannel;
+import java.nio.channels.SelectionKey;
+import java.nio.channels.Selector;
+import java.nio.channels.spi.AbstractSelectableChannel;
+import java.nio.channels.spi.AbstractSelector;
+import java.nio.channels.spi.SelectorProvider;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+public class SelectorImpl extends AbstractSelector
+{
+  boolean closed = false;
+  Set keys, selected, canceled;
+
+  public SelectorImpl (SelectorProvider provider)
+  {
+    super (provider);
+  }
+
+  public Set keys ()
+  {
+    return keys;
+  }
+    
+  public int selectNow ()
+  {
+    return select (1);
+  }
+
+  public int select ()
+  {
+    return select (Long.MAX_VALUE);
+  }
+
+//   private static native int java_do_select(int[] read, int[] write,
+//                                            int[] except, long timeout);
+
+  private static int java_do_select(int[] read, int[] write,
+                                    int[] except, long timeout)
+  {
+    return 0;
+  }
+
+  public int select (long timeout)
+  {
+    if (closed)
+      {
+        throw new ClosedSelectorException ();
+      }
+
+    if (keys == null)
+	    {
+        return 0;
+	    }
+
+    int[] read = new int[keys.size ()];
+    int[] write = new int[keys.size ()];
+    int[] except = new int[keys.size ()];
+    int i = 0;
+    Iterator it = keys.iterator ();
+
+    while (it.hasNext ())
+	    {
+        SelectionKeyImpl k = (SelectionKeyImpl) it.next ();
+        read[i] = k.fd;
+        write[i] = k.fd;
+        except[i] = k.fd;
+        i++;
+	    }
+
+    int ret = java_do_select (read, write, except, timeout);
+
+    i = 0;
+    it = keys.iterator ();
+
+    while (it.hasNext ())
+	    {
+        SelectionKeyImpl k = (SelectionKeyImpl) it.next ();
+
+        if (read[i] != -1 ||
+            write[i] != -1 ||
+            except[i] != -1)
+          {
+            add_selected (k);
+          }
+
+        i++;
+	    }
+
+    return ret;
+  }
+    
+  public Set selectedKeys ()
+  {
+    return selected;
+  }
+
+  public Selector wakeup ()
+  {
+    return null;
+  }
+
+  public void add (SelectionKeyImpl k)
+  {
+    if (keys == null)
+	    keys = new HashSet ();
+
+    keys.add (k);
+  }
+
+  void add_selected (SelectionKeyImpl k)
+  {
+    if (selected == null)
+	    selected = new HashSet ();
+
+    selected.add(k);
+  }
+
+  protected void implCloseSelector ()
+  {
+    closed = true;
+  }
+    
+  protected SelectionKey register (SelectableChannel ch, int ops, Object att)
+  {
+    return register ((AbstractSelectableChannel) ch, ops, att);
+  }
+
+  protected SelectionKey register (AbstractSelectableChannel ch, int ops,
+                                   Object att)
+  {
+// 	  // filechannel is not selectable ?
+//     if (ch instanceof FileChannelImpl)
+//       {
+//         FileChannelImpl fc = (FileChannelImpl) ch;
+//         SelectionKeyImpl impl = new SelectionKeyImpl (ch, this, fc.fd);
+//         keys.add (impl);
+//         return impl;
+//       }
+//     else
+	
+    if (ch instanceof SocketChannelImpl)
+	    {
+        SocketChannelImpl sc = (SocketChannelImpl) ch;
+        SelectionKeyImpl impl = new SelectionKeyImpl (ch, this, sc.fd);
+        add (impl);
+        return impl;
+	    }
+    else if (ch instanceof ServerSocketChannelImpl)
+      {
+        ServerSocketChannelImpl ssc = (ServerSocketChannelImpl) ch;
+        SelectionKeyImpl impl = new SelectionKeyImpl (ch, this, ssc.fd);
+        add (impl);
+        return impl;
+      }
+    else
+	    {
+        System.err.println ("INTERNAL ERROR, no known channel type");
+	    }
+
+    return null;
+  }
+}

libjava/gnu/java/nio/SelectorProviderImpl.java

+/* SelectorProviderImpl.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.nio;
+
+import java.nio.channels.DatagramChannel;
+import java.nio.channels.Pipe;
+import java.nio.channels.ServerSocketChannel;
+import java.nio.channels.SocketChannel;
+import java.nio.channels.spi.SelectorProvider;
+import java.nio.channels.spi.AbstractSelector;
+
+public class SelectorProviderImpl extends SelectorProvider
+{
+  public SelectorProviderImpl ()
+  {
+  }
+
+  public DatagramChannel openDatagramChannel ()
+  {
+    return new DatagramChannelImpl (this);
+  }
+
+  public Pipe openPipe ()
+  {
+    return new PipeImpl ();
+  }
+    
+  public AbstractSelector openSelector ()
+  {
+    return new SelectorImpl (this);
+  }
+
+  public ServerSocketChannel openServerSocketChannel ()
+  {
+    return new ServerSocketChannelImpl (this);
+  }
+
+  public SocketChannel openSocketChannel ()
+  {
+    return new SocketChannelImpl (this);
+  }
+}

libjava/gnu/java/nio/ServerSocketChannelImpl.java

+/* ServerSocketChannelImpl.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.nio;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+import java.net.SocketAddress;
+import java.nio.channels.ServerSocketChannel;
+import java.nio.channels.SocketChannel;
+import java.nio.channels.spi.SelectorProvider;
+
+class ServerSocketChannelImpl extends ServerSocketChannel
+{
+  ServerSocket sock_object;
+  int fd;
+//   int local_port;
+  boolean blocking = true;
+  boolean connected = false;
+//   InetSocketAddress sa;
+
+//   private static native int NioSocketAccept (ServerSocketChannelImpl server, 
+//                                              SocketChannelImpl s);
+
+  private static int NioSocketAccept (ServerSocketChannelImpl server, 
+                                      SocketChannelImpl s)
+  {
+    return 0;
+  }
+
+  protected ServerSocketChannelImpl (SelectorProvider provider)
+  {
+    super (provider);
+    fd = SocketChannelImpl.SocketCreate ();
+
+    try
+      {
+        sock_object = new ServerSocket ();
+      }
+    catch (IOException e)
+      {
+        System.err.println ("ServerSocket could not be created.");
+      }
+  }
+ 
+  public void finalizer()
+  {
+    if (connected)
+	    {
+        try
+          {
+            close();
+          }
+        catch (Exception e)
+          {
+          }
+	    }
+  }
+
+  protected void implCloseSelectableChannel ()
+  {
+    connected = false;
+    SocketChannelImpl.SocketClose (fd);
+    fd = SocketChannelImpl.SocketCreate ();
+  }
+
+  protected void implConfigureBlocking (boolean block)
+  {
+  }
+
+  public SocketChannel accept ()
+  {
+    SocketChannelImpl result = new SocketChannelImpl (provider ());
+    result.sa = new InetSocketAddress (0);
+    int res = NioSocketAccept (this, result);
+    return result;
+  }
+
+  public ServerSocket socket ()
+  {
+    return sock_object;
+  }
+}

libjava/gnu/java/nio/SocketChannelImpl.java

+/* SocketChannelImpl.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.nio;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.Socket;
+import java.net.SocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.channels.AlreadyConnectedException;
+import java.nio.channels.SocketChannel;
+import java.nio.channels.spi.SelectorProvider;
+import gnu.classpath.Configuration;
+
+public class SocketChannelImpl extends SocketChannel
+{
+  Socket sock_object;
+  int fd;
+  int local_port;
+  boolean blocking = true;
+  boolean connected = false;
+  InetSocketAddress sa;
+
+/*    
+  static native int SocketCreate();
+  static native int SocketConnect(int fd, InetAddress a, int port);
+  static native int SocketBind(int fd, InetAddress host, int port);
+  static native int SocketListen(int fd, int backlog);
+  static native int SocketAvailable(int fd);
+  static native int SocketClose(int fd);
+  static native int SocketRead(int fd, byte b[], int off, int len);
+  static native int SocketWrite(int fd, byte b[], int off, int len);
+*/
+
+  static int SocketCreate() { return 0; };
+  static int SocketConnect(int fd, InetAddress a, int port) { return 0; };
+  static int SocketBind(int fd, InetAddress host, int port) { return 0; };
+  static int SocketListen(int fd, int backlog) { return 0; };
+  static int SocketAvailable(int fd) { return 0; };
+  static int SocketClose(int fd) { return 0; };
+  static int SocketRead(int fd, byte b[], int off, int len) { return 0; };
+  static int SocketWrite(int fd, byte b[], int off, int len) { return 0; };
+
+  public SocketChannelImpl(SelectorProvider provider)		      
+  {
+    super(provider);
+    fd = SocketCreate();
+	
+    if (fd == -1)
+	    {
+        System.err.println("failed to create socket:"+fd);
+	    }
+  }
+    
+  public void finalizer()
+  {
+    if (connected)
+	    {
+        try
+          {
+            close();
+          }
+        catch (Exception e)
+          {
+          }
+	    }
+  }
+
+  protected void implCloseSelectableChannel()
+  {
+    connected = false;
+    SocketClose(fd);
+    fd = SocketCreate();
+  }
+
+  protected void implConfigureBlocking(boolean  block)
+  {
+    if (blocking == block)
+	    return;
+  }   
+
+  public boolean connect(SocketAddress remote)
+    throws IOException
+  {
+    if (connected)
+	    {
+        throw new AlreadyConnectedException();
+	    }
+
+    // ok, lets connect !
+	
+    sa = (InetSocketAddress) remote;
+	
+    InetAddress addr = sa.getAddress();
+    int port = sa.getPort();
+    int err = SocketConnect(fd, addr, port);
+	
+    if (err < 0) 
+	    {
+        throw new IOException("Connection refused:"+err + ", connect="+err);
+	    }
+
+    local_port = err;
+    connected = true;
+    return blocking;
+  }
+    
+  public boolean finishConnect()
+  {
+    return false;
+  }
+
+  public boolean isConnected()
+  {
+    return connected;
+  }
+    
+  public boolean isConnectionPending()
+  {
+    if (blocking)
+	    return true;
+
+    return false;
+  }
+    
+  public Socket socket()
+  {
+    if (sock_object != null)
+	    {
+        //sock_object.ch = this;
+	    }
+
+    return sock_object;
+  }
+
+  public int read(ByteBuffer dst)
+  {
+    int bytes = 0;
+    int len = 1024;
+    byte[]b = new byte[len];
+	
+    bytes = SocketRead(fd, b, 0, len);
+    dst.put(b, 0, bytes);
+
+    if (bytes == 0)
+	    {
+        // we've hit eof ?
+        return -1;
+	    }
+
+    return bytes;
+  }
+    
+  public long read(ByteBuffer[] dsts, int offset, int length)
+  {
+    long bytes = 0;
+
+    for (int i=offset; i<length; i++)
+	    {
+        bytes += read(dsts[i]);
+	    }
+
+    return bytes;
+  }
+     
+  public int write(ByteBuffer src)
+  {
+    int bytes = 0;
+    int len = src.position();
+
+    if (src instanceof ByteBufferImpl)
+	    {
+        ByteBufferImpl bi = (ByteBufferImpl) src;
+        byte[]b = bi.array();
+        bytes = SocketWrite(fd, b, 0, len);
+	    }
+    else
+	    {
+        byte[]b = new byte[len];
+        src.get(b, 0, len);
+        bytes = SocketWrite(fd, b, 0, len);
+	    }
+		
+	  return bytes;
+  }
+
+  public long write (ByteBuffer[] srcs, int offset, int length)
+  {
+    long bytes = 0;
+
+    for (int i=offset; i<length; i++)
+	    {
+        bytes += write(srcs[i]);
+	    }
+
+    return bytes;
+  }
+}

libjava/java/nio/DoubleBuffer.java

+/* DoubleBuffer.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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 java.nio;
+
+import gnu.java.nio.DoubleBufferImpl;
+
+public abstract class DoubleBuffer extends Buffer
+{
+  private ByteOrder endian = ByteOrder.BIG_ENDIAN;
+  protected double [] backing_buffer;
+
+  public static DoubleBuffer allocateDirect(int capacity)
+  {
+    return new DoubleBufferImpl(capacity, 0, capacity);
+  }
+
+  public static DoubleBuffer allocate(int capacity)
+  {
+    return new DoubleBufferImpl(capacity, 0, capacity);
+  }
+
+  final public static DoubleBuffer wrap (double[] array, int offset, int length)
+  {
+    return new DoubleBufferImpl(array, offset, length);
+  }
+
+  final public static DoubleBuffer wrap(String a)
+  {
+    int len = a.length();
+    double[] buffer = new double[len];
+
+    for (int i=0;i<len;i++)
+      {
+        buffer[i] = (double) a.charAt(i);
+      }
+
+    return wrap(buffer, 0, len);
+  }
+
+  final public static DoubleBuffer wrap(double[] array)
+  {
+    return wrap(array, 0, array.length);
+  }
+
+  final public DoubleBuffer get (double[] dst, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      {
+        dst[i] = get();
+      }
+
+    return this;
+  }
+
+  final public DoubleBuffer get(double[] dst)
+  {
+    return get(dst, 0, dst.length);
+  }
+
+  final public DoubleBuffer put(DoubleBuffer src)
+  {
+    while (src.hasRemaining())
+      put(src.get());
+
+    return this;
+  }
+
+  final public DoubleBuffer put (double[] src, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      put(src[i]);
+
+    return this;
+  }
+
+  public final DoubleBuffer put(double[] src)
+  {
+    return put(src, 0, src.length);
+  }
+
+  public final boolean hasArray()
+  {
+    return (backing_buffer != null);
+  }
+
+  public final double[] array()
+  {
+    return backing_buffer;
+  }
+
+  public final int arrayOffset()
+  {
+    return 0;
+  }
+
+  public int hashCode()
+  {
+    return super.hashCode();
+  }
+
+  public boolean equals(Object obj)
+  {
+    if (obj instanceof DoubleBuffer)
+      {
+        return compareTo(obj) == 0;
+      }
+
+    return false;
+  }
+
+  public int compareTo(Object ob)
+  {
+    DoubleBuffer a = (DoubleBuffer) ob;
+
+    if (a.remaining() != remaining())
+      return 1;
+
+    if (! hasArray() ||
+        ! a.hasArray())
+      {
+        return 1;
+      }
+
+    int r = remaining();
+    int i1 = position ();
+    int i2 = a.position ();
+
+    for (int i=0;i<r;i++)
+      {
+        int t = (int) (get(i1)- a.get(i2));
+        if (t != 0)
+          {
+            return (int) t;
+          }
+      }
+
+    return 0;
+  }
+
+  public final ByteOrder order()
+  {
+    return endian;
+  }
+
+  public final DoubleBuffer order(ByteOrder bo)
+  {
+    endian = bo;
+    return this;
+  }
+
+  public abstract double get();
+  public abstract DoubleBuffer put (double b);
+  public abstract double get(int index);
+  public abstract DoubleBuffer put(int index, double b);
+  public abstract DoubleBuffer compact();
+  public abstract boolean isDirect();
+  public abstract DoubleBuffer slice();
+  public abstract DoubleBuffer duplicate();
+  public abstract DoubleBuffer asReadOnlyBuffer();
+  public abstract ShortBuffer asShortBuffer();
+  public abstract CharBuffer asCharBuffer();
+  public abstract IntBuffer asIntBuffer();
+  public abstract LongBuffer asLongBuffer();
+  public abstract FloatBuffer asFloatBuffer();
+  public abstract DoubleBuffer asDoubleBuffer();
+  public abstract char getChar();
+  public abstract DoubleBuffer putChar(char value);
+  public abstract char getChar(int index);
+  public abstract DoubleBuffer putChar(int index, char value);
+  public abstract short getShort();
+  public abstract DoubleBuffer putShort(short value);
+  public abstract short getShort(int index);
+  public abstract DoubleBuffer putShort(int index, short value);
+  public abstract int getInt();
+  public abstract DoubleBuffer putInt(int value);
+  public abstract int getInt(int index);
+  public abstract DoubleBuffer putInt(int index, int value);
+  public abstract long getLong();
+  public abstract DoubleBuffer putLong(long value);
+  public abstract long getLong(int index);
+  public abstract DoubleBuffer putLong(int index, long value);
+  public abstract float getFloat();
+  public abstract DoubleBuffer putFloat(float value);
+  public abstract float getFloat(int index);
+  public abstract DoubleBuffer putFloat(int index, float value);
+  public abstract double getDouble();
+  public abstract DoubleBuffer putDouble(double value);
+  public abstract double getDouble(int index);
+  public abstract DoubleBuffer putDouble(int index, double value);
+}

libjava/java/nio/FloatBuffer.java

+/* FloatBuffer.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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 java.nio;
+
+import gnu.java.nio.FloatBufferImpl;
+
+public abstract class FloatBuffer extends Buffer
+{
+  private ByteOrder endian = ByteOrder.BIG_ENDIAN;
+  protected float [] backing_buffer;
+
+  public static FloatBuffer allocateDirect(int capacity)
+  {
+    return new FloatBufferImpl (capacity, 0, capacity);
+  }
+
+  public static FloatBuffer allocate(int capacity)
+  {
+    return new FloatBufferImpl (capacity, 0, capacity);
+  }
+
+  final public static FloatBuffer wrap(float[] array, int offset, int length)
+  {
+    return new FloatBufferImpl(array, offset, length);
+  }
+
+  final public static FloatBuffer wrap(String a)
+  {
+    int len = a.length();
+    float[] buffer = new float[len];
+
+    for (int i=0;i<len;i++)
+      {
+        buffer[i] = (float) a.charAt(i);
+      }
+
+    return wrap(buffer, 0, len);
+  }
+
+  final public static FloatBuffer wrap(float[] array)
+  {
+    return wrap(array, 0, array.length);
+  }
+
+  final public FloatBuffer get(float[] dst, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      {
+        dst[i] = get();
+      }
+
+    return this;
+  }
+
+  final public FloatBuffer get(float[] dst)
+  {
+    return get(dst, 0, dst.length);
+  }
+
+  final public FloatBuffer put(FloatBuffer src)
+  {
+    while (src.hasRemaining())
+      put(src.get());
+
+    return this;
+  }
+
+  final public FloatBuffer put(float[] src, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      put(src[i]);
+
+    return this;
+  }
+
+  public final FloatBuffer put(float[] src)
+  {
+    return put(src, 0, src.length);
+  }
+
+  public final boolean hasArray()
+  {
+    return (backing_buffer != null);
+  }
+
+  public final float[] array()
+  {
+    return backing_buffer;
+  }
+
+  public final int arrayOffset()
+  {
+    return 0;
+  }
+
+  public int hashCode()
+  {
+    return super.hashCode();
+  }
+
+  public boolean equals(Object obj)
+  {
+    if (obj instanceof FloatBuffer)
+      {
+        return compareTo(obj) == 0;
+      }
+    return false;
+  }
+
+  public int compareTo(Object ob)
+  {
+    FloatBuffer a = (FloatBuffer) ob;
+
+    if (a.remaining() != remaining())
+      return 1;
+
+    if (! hasArray() ||
+        ! a.hasArray())
+      {
+        return 1;
+      }
+
+    int r = remaining();
+    int i1 = position ();
+    int i2 = a.position ();
+
+    for (int i=0;i<r;i++)
+      {
+        int t = (int) (get(i1)- a.get(i2));
+        if (t != 0)
+          {
+            return (int) t;
+          }
+      }
+
+    return 0;
+  }
+
+  public final ByteOrder order()
+  {
+    return endian;
+  }
+
+  public final FloatBuffer order(ByteOrder bo)
+  {
+    endian = bo;
+    return this;
+  }
+
+  public abstract float get();
+  public abstract java.nio. FloatBuffer put(float b);
+  public abstract float get(int index);
+  public abstract java.nio. FloatBuffer put(int index, float b);
+  public abstract FloatBuffer compact();
+  public abstract boolean isDirect();
+  public abstract FloatBuffer slice();
+  public abstract FloatBuffer duplicate();
+  public abstract FloatBuffer asReadOnlyBuffer();
+  public abstract ShortBuffer asShortBuffer();
+  public abstract CharBuffer asCharBuffer();
+  public abstract IntBuffer asIntBuffer();
+  public abstract LongBuffer asLongBuffer();
+  public abstract FloatBuffer asFloatBuffer();
+  public abstract DoubleBuffer asDoubleBuffer();
+  public abstract char getChar();
+  public abstract FloatBuffer putChar(char value);
+  public abstract char getChar(int index);
+  public abstract FloatBuffer putChar(int index, char value);
+  public abstract short getShort();
+  public abstract FloatBuffer putShort(short value);
+  public abstract short getShort(int index);
+  public abstract FloatBuffer putShort(int index, short value);
+  public abstract int getInt();
+  public abstract FloatBuffer putInt(int value);
+  public abstract int getInt(int index);
+  public abstract FloatBuffer putInt(int index, int value);
+  public abstract long getLong();
+  public abstract FloatBuffer putLong(long value);
+  public abstract long getLong(int index);
+  public abstract FloatBuffer putLong(int index, long value);
+  public abstract float getFloat();
+  public abstract FloatBuffer putFloat(float value);
+  public abstract float getFloat(int index);
+  public abstract FloatBuffer putFloat(int index, float value);
+  public abstract double getDouble();
+  public abstract FloatBuffer putDouble(double value);
+  public abstract double getDouble(int index);
+  public abstract FloatBuffer putDouble(int index, double value);
+}

libjava/java/nio/IntBuffer.java

+/* IntBuffer.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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 java.nio;
+
+import gnu.java.nio.IntBufferImpl;
+
+public abstract class IntBuffer extends Buffer
+{
+  private ByteOrder endian = ByteOrder.BIG_ENDIAN;
+  protected int [] backing_buffer;
+
+  public static IntBuffer allocateDirect(int capacity)
+  {
+    return new IntBufferImpl (capacity, 0, capacity);
+  }
+
+  public static IntBuffer allocate(int capacity)
+  {
+    return new IntBufferImpl (capacity, 0, capacity);
+  }
+
+  final public static IntBuffer wrap(int[] array, int offset, int length)
+  {
+    return new IntBufferImpl(array, offset, length);
+  }
+
+  final public static IntBuffer wrap(String a)
+  {
+    int len = a.length();
+    int[] buffer = new int[len];
+
+    for (int i=0;i<len;i++)
+      {
+        buffer[i] = (int) a.charAt(i);
+      }
+
+    return wrap(buffer, 0, len);
+  }
+
+  final public static IntBuffer wrap(int[] array)
+  {
+    return wrap(array, 0, array.length);
+  }
+
+  final public IntBuffer get(int[] dst, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      {
+        dst[i] = get();
+      }
+
+    return this;
+  }
+
+  final public IntBuffer get(int[] dst)
+  {
+    return get(dst, 0, dst.length);
+  }
+
+  final public IntBuffer put(IntBuffer src)
+  {
+    while (src.hasRemaining())
+      put(src.get());
+
+    return this;
+  }
+
+  final public IntBuffer put(int[] src, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      put(src[i]);
+
+    return this;
+  }
+
+  public final IntBuffer put(int[] src)
+  {
+    return put(src, 0, src.length);
+  }
+
+  public final boolean hasArray()
+  {
+    return (backing_buffer != null);
+  }
+
+  public final int[] array()
+  {
+    return backing_buffer;
+  }
+
+  public final int arrayOffset()
+  {
+    return 0;
+  }
+
+  public int hashCode()
+  {
+    return super.hashCode();
+  }
+
+  public boolean equals(Object obj)
+  {
+    if (obj instanceof IntBuffer)
+      {
+        return compareTo(obj) == 0;
+      }
+
+    return false;
+  }
+
+  public int compareTo(Object ob)
+  {
+    IntBuffer a = (IntBuffer) ob;
+
+    if (a.remaining() != remaining())
+      return 1;
+
+    if (! hasArray() ||
+        ! a.hasArray())
+      {
+        return 1;
+      }
+
+    int r = remaining();
+    int i1 = position ();
+    int i2 = a.position ();
+
+    for (int i=0;i<r;i++)
+      {
+        int t = (int) (get(i1)- a.get(i2));
+        if (t != 0)
+          {
+            return (int) t;
+          }
+      }
+
+    return 0;
+  }
+
+  public final ByteOrder order()
+  {
+    return endian;
+  }
+
+  public final IntBuffer order(ByteOrder bo)
+  {
+    endian = bo;
+    return this;
+  }
+
+  public abstract int get();
+  public abstract IntBuffer put(int b);
+  public abstract int get(int index);
+  public abstract IntBuffer put(int index, int b);
+  public abstract IntBuffer compact();
+  public abstract boolean isDirect();
+  public abstract IntBuffer slice();
+  public abstract IntBuffer duplicate();
+  public abstract IntBuffer asReadOnlyBuffer();
+  public abstract ShortBuffer asShortBuffer();
+  public abstract CharBuffer asCharBuffer();
+  public abstract IntBuffer asIntBuffer();
+  public abstract LongBuffer asLongBuffer();
+  public abstract FloatBuffer asFloatBuffer();
+  public abstract DoubleBuffer asDoubleBuffer();
+  public abstract char getChar();
+  public abstract IntBuffer putChar(char value);
+  public abstract char getChar(int index);
+  public abstract IntBuffer putChar(int index, char value);
+  public abstract short getShort();
+  public abstract IntBuffer putShort(short value);
+  public abstract short getShort(int index);
+  public abstract IntBuffer putShort(int index, short value);
+  public abstract int getInt();
+  public abstract IntBuffer putInt(int value);
+  public abstract int getInt(int index);
+  public abstract IntBuffer putInt(int index, int value);
+  public abstract long getLong();
+  public abstract IntBuffer putLong(long value);
+  public abstract long getLong(int index);
+  public abstract IntBuffer putLong(int index, long value);
+  public abstract float getFloat();
+  public abstract IntBuffer putFloat(float value);
+  public abstract float getFloat(int index);
+  public abstract IntBuffer putFloat(int index, float value);
+  public abstract double getDouble();
+  public abstract IntBuffer putDouble(double value);
+  public abstract double getDouble(int index);
+  public abstract IntBuffer putDouble(int index, double value);
+}

libjava/java/nio/LongBuffer.java

+/* LongBuffer.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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 java.nio;
+
+import gnu.java.nio.LongBufferImpl;
+
+public abstract class LongBuffer extends Buffer
+{
+  private ByteOrder endian = ByteOrder.BIG_ENDIAN;
+  protected long [] backing_buffer;
+
+  public static LongBuffer allocateDirect(int capacity)
+  {
+    return new LongBufferImpl(capacity, 0, capacity);
+  }
+
+  public static LongBuffer allocate(int capacity)
+  {
+    return new LongBufferImpl(capacity, 0, capacity);
+  }
+
+  final public static LongBuffer wrap(long[] array, int offset, int length)
+  {
+    return new LongBufferImpl (array, offset, length);
+  }
+
+  final public static LongBuffer wrap(String a)
+  {
+    int len = a.length();
+    long[] buffer = new long[len];
+
+    for (int i=0;i<len;i++)
+      {
+        buffer[i] = (long) a.charAt(i);
+      }
+
+    return wrap(buffer, 0, len);
+  }
+
+  final public static LongBuffer wrap(long[] array)
+  {
+    return wrap(array, 0, array.length);
+  }
+
+  final public LongBuffer get(long[] dst, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      {
+        dst[i] = get();
+      }
+
+    return this;
+  }
+
+  final public LongBuffer get(long[] dst)
+  {
+    return get(dst, 0, dst.length);
+  }
+
+  final public LongBuffer put(LongBuffer src)
+  {
+    while (src.hasRemaining())
+      put(src.get());
+
+    return this;
+  }
+
+  final public LongBuffer put(long[] src, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      put(src[i]);
+
+    return this;
+  }
+
+  public final LongBuffer put(long[] src)
+  {
+    return put(src, 0, src.length);
+  }
+
+  public final boolean hasArray()
+  {
+    return (backing_buffer != null);
+  }
+
+  public final long[] array()
+  {
+    return backing_buffer;
+  }
+
+  public final int arrayOffset()
+  {
+    return 0;
+  }
+
+  public int hashCode()
+  {
+    return super.hashCode();
+  }
+
+  public boolean equals(Object obj)
+  {
+    if (obj instanceof LongBuffer)
+      {
+        return compareTo(obj) == 0;
+      }
+
+    return false;
+  }
+
+  public int compareTo(Object ob)
+  {
+    LongBuffer a = (LongBuffer) ob;
+
+    if (a.remaining() != remaining())
+      return 1;
+
+    if (! hasArray() ||
+        ! a.hasArray())
+      {
+        return 1;
+      }
+
+    int r = remaining();
+    int i1 = position ();
+    int i2 = a.position ();
+
+    for (int i=0;i<r;i++)
+      {
+        int t = (int) (get(i1)- a.get(i2));
+
+        if (t != 0)
+          {
+            return (int) t;
+          }
+      }
+
+    return 0;
+  }
+
+  public final ByteOrder order()
+  {
+    return endian;
+  }
+
+  public final LongBuffer order(ByteOrder bo)
+  {
+    endian = bo;
+    return this;
+  }
+
+  public abstract long get();
+  public abstract java.nio. LongBuffer put(long b);
+  public abstract long get(int index);
+  public abstract java.nio. LongBuffer put(int index, long b);
+  public abstract LongBuffer compact();
+  public abstract boolean isDirect();
+  public abstract LongBuffer slice();
+  public abstract LongBuffer duplicate();
+  public abstract LongBuffer asReadOnlyBuffer();
+  public abstract ShortBuffer asShortBuffer();
+  public abstract CharBuffer asCharBuffer();
+  public abstract IntBuffer asIntBuffer();
+  public abstract LongBuffer asLongBuffer();
+  public abstract FloatBuffer asFloatBuffer();
+  public abstract DoubleBuffer asDoubleBuffer();
+  public abstract char getChar();
+  public abstract LongBuffer putChar(char value);
+  public abstract char getChar(int index);
+  public abstract LongBuffer putChar(int index, char value);
+  public abstract short getShort();
+  public abstract LongBuffer putShort(short value);
+  public abstract short getShort(int index);
+  public abstract LongBuffer putShort(int index, short value);
+  public abstract int getInt();
+  public abstract LongBuffer putInt(int value);
+  public abstract int getInt(int index);
+  public abstract LongBuffer putInt(int index, int value);
+  public abstract long getLong();
+  public abstract LongBuffer putLong(long value);
+  public abstract long getLong(int index);
+  public abstract LongBuffer putLong(int index, long value);
+  public abstract float getFloat();
+  public abstract LongBuffer putFloat(float value);
+  public abstract float getFloat(int index);
+  public abstract LongBuffer putFloat(int index, float value);
+  public abstract double getDouble();
+  public abstract LongBuffer putDouble(double value);
+  public abstract double getDouble(int index);
+  public abstract LongBuffer putDouble(int index, double value);
+}

libjava/java/nio/ShortBuffer.java

+/* ShortBuffer.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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 java.nio;
+
+import gnu.java.nio.ShortBufferImpl;
+
+public abstract class ShortBuffer extends Buffer
+{
+  private ByteOrder endian = ByteOrder.BIG_ENDIAN;
+  protected short [] backing_buffer;
+
+  public static ShortBuffer allocateDirect(int capacity)
+  {
+    return new ShortBufferImpl(capacity, 0, capacity);
+  }
+
+  public static ShortBuffer allocate(int capacity)
+  {
+    return new ShortBufferImpl(capacity, 0, capacity);
+  }
+
+  final public static ShortBuffer wrap(short[] array, int offset, int length)
+  {
+    return new ShortBufferImpl(array, offset, length);
+  }
+
+  final public static ShortBuffer wrap(String a)
+  {
+    int len = a.length();
+    short[] buffer = new short[len];
+
+    for (int i=0;i<len;i++)
+      {
+        buffer[i] = (short) a.charAt(i);
+      }
+
+    return wrap(buffer, 0, len);
+  }
+
+  final public static ShortBuffer wrap(short[] array)
+  {
+    return wrap(array, 0, array.length);
+  }
+
+  final public ShortBuffer get(short[] dst, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      {
+        dst[i] = get();
+      }
+
+    return this;
+  }
+
+  final public ShortBuffer get(short[] dst)
+  {
+    return get(dst, 0, dst.length);
+  }
+
+  final public ShortBuffer put(ShortBuffer src)
+  {
+    while (src.hasRemaining())
+      put(src.get());
+
+    return this;
+  }
+
+  final public ShortBuffer put(short[] src, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      put(src[i]);
+
+    return this;
+  }
+
+  public final ShortBuffer put(short[] src)
+  {
+    return put(src, 0, src.length);
+  }
+
+  public final boolean hasArray()
+  {
+    return (backing_buffer != null);
+  }
+
+  public final short[] array()
+  {
+    return backing_buffer;
+  }
+
+  public final int arrayOffset()
+  {
+    return 0;
+  }
+
+  public int hashCode()
+  {
+    return super.hashCode();
+  }
+
+  public boolean equals(Object obj)
+  {
+    if (obj instanceof ShortBuffer)
+      {
+        return compareTo(obj) == 0;
+      }
+
+    return false;
+  }
+
+  public int compareTo(Object ob)
+  {
+    ShortBuffer a = (ShortBuffer) ob;
+
+    if (a.remaining() != remaining())
+      return 1;
+
+    if (! hasArray() ||
+        ! a.hasArray())
+      {
+        return 1;
+      }
+
+    int r = remaining();
+    int i1 = position ();
+    int i2 = a.position ();
+
+    for (int i=0;i<r;i++)
+      {
+        int t = (int) (get(i1)- a.get(i2));
+
+        if (t != 0)
+          {
+            return (int) t;
+          }
+      }
+
+    return 0;
+  }
+
+  public final ByteOrder order()
+  {
+    return endian;
+  }
+
+  public final ShortBuffer order(ByteOrder bo)
+  {
+    endian = bo;
+    return this;
+  }
+
+  public abstract short get();
+  public abstract java.nio. ShortBuffer put(short b);
+  public abstract short get(int index);
+  public abstract java.nio. ShortBuffer put(int index, short b);
+  public abstract ShortBuffer compact();
+  public abstract boolean isDirect();
+  public abstract ShortBuffer slice();
+  public abstract ShortBuffer duplicate();
+  public abstract ShortBuffer asReadOnlyBuffer();
+  public abstract ShortBuffer asShortBuffer();
+  public abstract CharBuffer asCharBuffer();
+  public abstract IntBuffer asIntBuffer();
+  public abstract LongBuffer asLongBuffer();
+  public abstract FloatBuffer asFloatBuffer();
+  public abstract DoubleBuffer asDoubleBuffer();
+  public abstract char getChar();
+  public abstract ShortBuffer putChar(char value);
+  public abstract char getChar(int index);
+  public abstract ShortBuffer putChar(int index, char value);
+  public abstract short getShort();
+  public abstract ShortBuffer putShort(short value);
+  public abstract short getShort(int index);
+  public abstract ShortBuffer putShort(int index, short value);
+  public abstract int getInt();
+  public abstract ShortBuffer putInt(int value);
+  public abstract int getInt(int index);
+  public abstract ShortBuffer putInt(int index, int value);
+  public abstract long getLong();
+  public abstract ShortBuffer putLong(long value);
+  public abstract long getLong(int index);
+  public abstract ShortBuffer putLong(int index, long value);
+  public abstract float getFloat();
+  public abstract ShortBuffer putFloat(float value);
+  public abstract float getFloat(int index);
+  public abstract ShortBuffer putFloat(int index, float value);
+  public abstract double getDouble();
+  public abstract ShortBuffer putDouble(double value);
+  public abstract double getDouble(int index);
+  public abstract ShortBuffer putDouble(int index, double value);
+}

libjava/java/nio/channels/FileChannel.java

+/* FileChannel.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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 java.nio.channels;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.spi.AbstractInterruptibleChannel;
+
+/**
+ * @author Michael Koch
+ * @since 1.4
+ */
+public abstract class FileChannel extends AbstractInterruptibleChannel
+  implements ByteChannel, GatheringByteChannel, ScatteringByteChannel
+{
+  public static class MapMode
+  {
+    public int m;
+
+    public static MapMode READ_ONLY  = new MapMode(0);
+    public static MapMode READ_WRITE = new MapMode(1);
+    public static MapMode PRIVATE    = new MapMode(2);
+
+    /**
+     * Initializes the MapMode.
+     */
+    MapMode(int a)
+    {
+      m = a;
+    }
+
+    public String toString() 
+    {
+      return "" + m;
+    }
+  }
+
+  /**
+   * Initializes the channel.
+   */
+  protected FileChannel ()
+  {
+  }
+
+  /**
+   * Maps the file into the memory.
+   *
+   * @exception IOException If an error occurs.
+   */
+  public abstract MappedByteBuffer map(MapMode mode, long position, long size)
+    throws IOException;
+
+  /**
+   * Return the size of the file thus far
+   */
+  public abstract long size() throws IOException;
+  
+  /**
+   * Writes data to the channel.
+   *
+   * @exception IOException If an error occurs.
+   */
+  public long write (ByteBuffer[] srcs) throws IOException
+  {
+    long result = 0;
+    
+    for (int i = 0; i < srcs.length; i++)
+      {
+        result += write (srcs[i]);
+      }
+    
+    return result;
+  }
+  
+  /**
+   * Writes data to the channel.
+   */
+  public abstract long write(ByteBuffer[] srcs, int offset, int length)
+    throws IOException;
+  
+  /**
+   * Reads data from the channel.
+   */
+  public abstract int read(ByteBuffer dst) throws IOException;
+  
+  /**
+   * Closes the channel.
+   *
+   * This is called from @see close.
+   *
+   * @exception IOException If an error occurs.
+   */
+  protected abstract void implCloseChannel() throws IOException;
+
+  /**
+   * msync with the disk
+   */
+  public abstract void force(boolean metaData);    
+}