1 files changed, 0 insertions, 553 deletions
diff --git a/libjava/classpath/gnu/java/nio/channels/FileChannelImpl.java b/libjava/classpath/gnu/java/nio/channels/FileChannelImpl.java
deleted file mode 100644
index ed439e141ef..00000000000
--- a/libjava/classpath/gnu/java/nio/channels/FileChannelImpl.java
+++ /dev/null
@@ -1,553 +0,0 @@
-/* FileChannelImpl.java -- 
-   Copyright (C) 2002, 2004, 2005, 2006  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., 51 Franklin Street, 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.nio.channels;
-
-import gnu.classpath.Configuration;
-import gnu.java.nio.FileLockImpl;
-import gnu.java.nio.VMChannel;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.nio.MappedByteBuffer;
-import java.nio.channels.ClosedChannelException;
-import java.nio.channels.FileChannel;
-import java.nio.channels.FileLock;
-import java.nio.channels.NonReadableChannelException;
-import java.nio.channels.NonWritableChannelException;
-import java.nio.channels.ReadableByteChannel;
-import java.nio.channels.WritableByteChannel;
-
-/**
- * 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 final class FileChannelImpl extends FileChannel
-{
-  // These are mode values for open().
-  public static final int READ   = 1;
-  public static final int WRITE  = 2;
-  public static final int APPEND = 4;
-
-  // EXCL is used only when making a temp file.
-  public static final int EXCL   = 8;
-  public static final int SYNC   = 16;
-  public static final int DSYNC  = 32;
-
-  public static FileChannelImpl in;
-  public static FileChannelImpl out;
-  public static FileChannelImpl err;
-
-  private static native void init();
-
-  static
-  {
-    if (Configuration.INIT_LOAD_LIBRARY)
-      {
-        System.loadLibrary("javanio");
-      }
-    
-    init();
-
-    in  = new FileChannelImpl(0, READ);
-    out = new FileChannelImpl(1, WRITE);
-    err = new FileChannelImpl(2, WRITE);
-  }
-
-  /**
-   * This is the actual native file descriptor value
-   */
-  // System's notion of file descriptor.  It might seem redundant to
-  // initialize this given that it is reassigned in the constructors.
-  // However, this is necessary because if open() throws an exception
-  // we want to make sure this has the value -1.  This is the most
-  // efficient way to accomplish that.
-  private int fd = -1;
-  private VMChannel ch;
-
-  private int mode;
-
-  final String description;
-
-  /* Open a file.  MODE is a combination of the above mode flags. */
-  /* This is a static factory method, so that VM implementors can decide
-   * substitute subclasses of FileChannelImpl. */
-  public static FileChannelImpl create(File file, int mode)
-    throws FileNotFoundException
-  {
-    return new FileChannelImpl(file, mode);
-  }
-
-  private FileChannelImpl(File file, int mode)
-    throws FileNotFoundException
-  {
-    String path = file.getPath();
-    description = path;
-    fd = open (path, mode);
-    this.mode = mode;
-    this.ch = VMChannel.getVMChannel(this);
-
-    // First open the file and then check if it is a a directory
-    // to avoid race condition.
-    if (file.isDirectory())
-      {
-	try 
-	  {
-	      close();
-	  }
-	catch (IOException e)
-	  {
-	      /* ignore it */
-	  }
-
-	throw new FileNotFoundException(description + " is a directory");
-      }
-  }
-
-  /**
-   * Constructor for default channels in, out and err.
-   *
-   * Used by init() (native code).
-   *
-   * @param fd the file descriptor (0, 1, 2 for stdin, stdout, stderr).
-   *
-   * @param mode READ or WRITE
-   */
-  FileChannelImpl (int fd, int mode)
-  {
-    this.fd = fd;
-    this.mode = mode;
-    this.description = "descriptor(" + fd + ")";
-    this.ch = VMChannel.getVMChannel(this);
-  }
-
-  private native int open (String path, int mode) throws FileNotFoundException;
-
-  public native int available () throws IOException;
-  private native long implPosition () throws IOException;
-  private native void seek (long newPosition) throws IOException;
-  private native void implTruncate (long size) throws IOException;
-  
-  public native void unlock (long pos, long len) throws IOException;
-
-  public native long size () throws IOException;
-    
-  protected native void implCloseChannel() throws IOException;
-
-  /**
-   * Makes sure the Channel is properly closed.
-   */
-  protected void finalize() throws IOException
-  {
-    if (fd != -1)
-      close();
-  }
-
-  public int read (ByteBuffer dst) throws IOException
-  {
-    /*
-    int result;
-    byte[] buffer = new byte [dst.remaining ()];
-    
-    result = read (buffer, 0, buffer.length);
-
-    if (result > 0)
-      dst.put (buffer, 0, result);
-
-    return result;
-    */
-    return ch.read(dst);
-  }
-
-  public int read (ByteBuffer dst, long position)
-    throws IOException
-  {
-    if (position < 0)
-      throw new IllegalArgumentException ("position: " + position);
-    long oldPosition = implPosition ();
-    position (position);
-    int result = read(dst);
-    position (oldPosition);
-    
-    return result;
-  }
-
-  public native int read ()
-    throws IOException;
-
-  public native int read (byte[] buffer, int offset, int length)
-    throws IOException;
-
-  public long read (ByteBuffer[] dsts, int offset, int length)
-    throws IOException
-  {
-    return ch.readScattering(dsts, offset, length);
-  }
-
-  public int write (ByteBuffer src) throws IOException
-  {
-    return ch.write(src);
-  }
-    
-  public int write (ByteBuffer src, long position)
-    throws IOException
-  {
-    if (position < 0)
-      throw new IllegalArgumentException ("position: " + position);
-
-    if (!isOpen ())
-      throw new ClosedChannelException ();
-    
-    if ((mode & WRITE) == 0)
-       throw new NonWritableChannelException ();
-
-    int result;
-    long oldPosition;
-
-    oldPosition = implPosition ();
-    seek (position);
-    result = write(src);
-    seek (oldPosition);
-    
-    return result;
-  }
-
-  public native void write (byte[] buffer, int offset, int length)
-    throws IOException;
-  
-  public native void write (int b) throws IOException;
-
-  public long write(ByteBuffer[] srcs, int offset, int length)
-    throws IOException
-  {
-    return ch.writeGathering(srcs, offset, length);
-  }
-				   
-  public native MappedByteBuffer mapImpl (char mode, long position, int size)
-    throws IOException;
-
-  public MappedByteBuffer map (FileChannel.MapMode mode,
-			       long position, long size)
-    throws IOException
-  {
-    char nmode = 0;
-    if (mode == MapMode.READ_ONLY)
-      {
-	nmode = 'r';
-	if ((this.mode & READ) == 0)
-	  throw new NonReadableChannelException();
-      }
-    else if (mode == MapMode.READ_WRITE || mode == MapMode.PRIVATE)
-      {
-	nmode = mode == MapMode.READ_WRITE ? '+' : 'c';
-	if ((this.mode & WRITE) != WRITE)
-	  throw new NonWritableChannelException();
-	if ((this.mode & READ) != READ)
-	  throw new NonReadableChannelException();
-      }
-    else
-      throw new IllegalArgumentException ("mode: " + mode);
-    
-    if (position < 0 || size < 0 || size > Integer.MAX_VALUE)
-      throw new IllegalArgumentException ("position: " + position
-					  + ", size: " + size);
-    return mapImpl(nmode, position, (int) size);
-  }
-
-  /**
-   * msync with the disk
-   */
-  public void force (boolean metaData) throws IOException
-  {
-    if (!isOpen ())
-      throw new ClosedChannelException ();
-
-    force ();
-  }
-
-  private native void force ();
-
-  // like transferTo, but with a count of less than 2Gbytes
-  private int smallTransferTo (long position, int count, 
-			       WritableByteChannel target)
-    throws IOException
-  {
-    ByteBuffer buffer;
-    try
-      {
-	// Try to use a mapped buffer if we can.  If this fails for
-	// any reason we'll fall back to using a ByteBuffer.
-	buffer = map (MapMode.READ_ONLY, position, count);
-      }
-    catch (IOException e)
-      {
-	buffer = ByteBuffer.allocate (count);
-	read (buffer, position);
-	buffer.flip();
-      }
-
-    return target.write (buffer);
-  }
-
-  public long transferTo (long position, long count, 
-			  WritableByteChannel target)
-    throws IOException
-  {
-    if (position < 0
-        || count < 0)
-      throw new IllegalArgumentException ("position: " + position
-					  + ", count: " + count);
-
-    if (!isOpen ())
-      throw new ClosedChannelException ();
-
-    if ((mode & READ) == 0)
-       throw new NonReadableChannelException ();
-   
-    final int pageSize = 65536;
-    long total = 0;
-
-    while (count > 0)
-      {
-	int transferred 
-	  = smallTransferTo (position, (int)Math.min (count, pageSize), 
-			     target);
-	if (transferred < 0)
-	  break;
-	total += transferred;
-	position += transferred;
-	count -= transferred;
-      }
-
-    return total;
-  }
-
-  // like transferFrom, but with a count of less than 2Gbytes
-  private int smallTransferFrom (ReadableByteChannel src, long position, 
-				 int count)
-    throws IOException
-  {
-    ByteBuffer buffer = null;
-
-    if (src instanceof FileChannel)
-      {
-	try
-	  {
-	    // Try to use a mapped buffer if we can.  If this fails
-	    // for any reason we'll fall back to using a ByteBuffer.
-	    buffer = ((FileChannel)src).map (MapMode.READ_ONLY, position, 
-					     count);
-	  }
-	catch (IOException e)
-	  {
-	  }
-      }
-
-    if (buffer == null)
-      {
-	buffer = ByteBuffer.allocate ((int) count);
-	src.read (buffer);
-	buffer.flip();
-      }
-
-    return write (buffer, position);
-  }
-
-  public long transferFrom (ReadableByteChannel src, long position, 
-			    long count)
-    throws IOException
-  {
-    if (position < 0
-        || count < 0)
-      throw new IllegalArgumentException ("position: " + position
-					  + ", count: " + count);
-
-    if (!isOpen ())
-      throw new ClosedChannelException ();
-
-    if ((mode & WRITE) == 0)
-       throw new NonWritableChannelException ();
-
-    final int pageSize = 65536;
-    long total = 0;
-
-    while (count > 0)
-      {
-	int transferred = smallTransferFrom (src, position, 
-					     (int)Math.min (count, pageSize));
-	if (transferred < 0)
-	  break;
-	total += transferred;
-	position += transferred;
-	count -= transferred;
-      }
-
-    return total;
-  }
-
-  // Shared sanity checks between lock and tryLock methods.
-  private void lockCheck(long position, long size, boolean shared)
-    throws IOException
-  {
-    if (position < 0
-        || size < 0)
-      throw new IllegalArgumentException ("position: " + position
-					  + ", size: " + size);
-
-    if (!isOpen ())
-      throw new ClosedChannelException();
-
-    if (shared && ((mode & READ) == 0))
-      throw new NonReadableChannelException();
-	
-    if (!shared && ((mode & WRITE) == 0))
-      throw new NonWritableChannelException();
-  }
-
-  public FileLock tryLock (long position, long size, boolean shared)
-    throws IOException
-  {
-    lockCheck(position, size, shared);
-
-    boolean completed = false;
-    try
-      {
-	begin();
-	boolean lockable = lock(position, size, shared, false);
-	completed = true;
-	return (lockable
-		? new FileLockImpl(this, position, size, shared)
-		: null);
-      }
-    finally
-      {
-	end(completed);
-      }
-  }
-
-  /** Try to acquire a lock at the given position and size.
-   * On success return true.
-   * If wait as specified, block until we can get it.
-   * Otherwise return false.
-   */
-  private native boolean lock(long position, long size,
-			      boolean shared, boolean wait) throws IOException;
-  
-  public FileLock lock (long position, long size, boolean shared)
-    throws IOException
-  {
-    lockCheck(position, size, shared);
-
-    boolean completed = false;
-    try
-      {
-	boolean lockable = lock(position, size, shared, true);
-	completed = true;
-	return (lockable
-		? new FileLockImpl(this, position, size, shared)
-		: null);
-      }
-    finally
-      {
-	end(completed);
-      }
-  }
-
-  public long position ()
-    throws IOException
-  {
-    if (!isOpen ())
-      throw new ClosedChannelException ();
-
-    return implPosition ();
-  }
-  
-  public FileChannel position (long newPosition)
-    throws IOException
-  {
-    if (newPosition < 0)
-      throw new IllegalArgumentException ("newPosition: " + newPosition);
-
-    if (!isOpen ())
-      throw new ClosedChannelException ();
-
-    // FIXME note semantics if seeking beyond eof.
-    // We should seek lazily - only on a write.
-    seek (newPosition);
-    return this;
-  }
-  
-  public FileChannel truncate (long size)
-    throws IOException
-  {
-    if (size < 0)
-      throw new IllegalArgumentException ("size: " + size);
-
-    if (!isOpen ())
-      throw new ClosedChannelException ();
-
-    if ((mode & WRITE) == 0)
-       throw new NonWritableChannelException ();
-
-    if (size < size ())
-      implTruncate (size);
-
-    return this;
-  }
-
-  public String toString()
-  {
-    return (this.getClass()
-	    + "[fd=" + fd
-	    + ",mode=" + mode + ","
-	    + description + "]");
-  }
-
-  /**
-   * @return The native file descriptor.
-   */
-  public int getNativeFD()
-  {
-    return fd;
-  }
-}