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CharViewBufferImpl.java, [...]: New files, not yet to be compiled.

Browse source 
2003-05-12  Michael Koch  <konqueror@gmx.de>

	* gnu/java/nio/CharViewBufferImpl.java,
	gnu/java/nio/DirectByteBufferImpl.java,
	gnu/java/nio/DoubleViewBufferImpl.java,
	gnu/java/nio/FloatViewBufferImpl.java,
	gnu/java/nio/IntViewBufferImpl.java,
	gnu/java/nio/LongViewBufferImpl.java,
	gnu/java/nio/ShortViewBufferImpl.java,
	gnu/java/nio/natDirectByteBufferImpl.cc:
	New files, not yet to be compiled.

From-SVN: r66727
This commit is contained in:
Michael Koch 2003-05-12 18:32:17 +00:00 • committed by Michael Koch
parent 6e81c6f49c
commit 5560b019e4
9 changed files with 1426 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

167
libjava/gnu/java/nio/CharViewBufferImpl.java Normal file
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/* CharViewBufferImpl.java --
Copyright (C) 2003 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.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.CharBuffer;
class CharViewBufferImpl extends CharBuffer
{
private boolean readOnly;
private int offset;
private ByteBuffer bb;
private ByteOrder endian;
public CharViewBufferImpl (ByteBuffer bb, boolean readOnly)
{
super (bb.remaining () >> 1, bb.remaining () >> 1, bb.position (), 0);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from CharByteBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public CharViewBufferImpl (ByteBuffer bb, int offset, int capacity,
int limit, int position, int mark,
boolean readOnly)
{
super (limit, limit, offset, position);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from CharViewBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public char get ()
{
char result = bb.getChar ((position () >> 1) + offset);
position (position () + 1);
return result;
}
public char get (int index)
{
return bb.getChar ((index >> 1) + offset);
}
public CharBuffer put (char value)
{
bb.putChar ((position () >> 1) + offset, value);
return this;
}
public CharBuffer put (int index, char value)
{
bb.putChar ((index >> 1) + offset, value);
return this;
}
public CharBuffer compact ()
{
if (position () > 0)
{
// Copy all data from position() to limit() to the beginning of the
// buffer, set position to end of data and limit to capacity
// XXX: This can surely be optimized, for direct and non-direct buffers
int count = limit () - position ();
for (int i = 0; i < count; i++)
{
bb.putChar ((i >> 1) + offset,
bb.getChar (((i + position ()) >> 1) + offset));
}
position (count);
limit (capacity ());
}
return this;
}
public CharBuffer duplicate ()
{
// Create a copy of this object that shares its content
// FIXME: mark is not correct
return new CharViewBufferImpl (bb, offset, capacity (), limit (),
position (), -1, isReadOnly ());
}
public CharBuffer slice ()
{
// Create a sliced copy of this object that shares its content.
return new CharViewBufferImpl (bb, (position () >> 1) + offset,
remaining (), remaining (), 0, -1,
isReadOnly ());
}
public CharSequence subSequence (int start, int end)
{
if (start < 0
|| start > length ()
|| end < start
|| end > length ())
throw new IndexOutOfBoundsException ();
return new CharViewBufferImpl (bb, array_offset, capacity (), position () + end, position () + start, -1, isReadOnly ());
}
public CharBuffer asReadOnlyBuffer ()
{
// Create a copy of this object that shares its content and is read-only
return new CharViewBufferImpl (bb, (position () >> 1) + offset,
remaining (), remaining (), 0, -1, true);
}
public boolean isReadOnly ()
{
return readOnly;
}
public boolean isDirect ()
{
return bb.isDirect ();
}
public ByteOrder order ()
{
return ByteOrder.LITTLE_ENDIAN;
}
}

423
libjava/gnu/java/nio/DirectByteBufferImpl.java Normal file
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@ -0,0 +1,423 @@
/* DirectByteBufferImpl.java --
Copyright (C) 2003 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.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.DoubleBuffer;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.nio.LongBuffer;
import java.nio.ShortBuffer;
import gnu.gcj.RawData;
public class DirectByteBufferImpl extends ByteBuffer
{
private RawData address;
private int offset;
private boolean readOnly;
public DirectByteBufferImpl (RawData address, int offset, int capacity,
int limit, int position, int mark,
boolean readOnly)
{
super (capacity, limit, position, mark);
this.address = address;
this.offset = offset;
this.readOnly = readOnly;
}
private static native RawData allocateImpl (int capacity);
private static native void freeImpl (RawData address);
protected void finalize () throws Throwable
{
freeImpl (address);
}
public static ByteBuffer allocateDirect (int capacity)
{
RawData address = allocateImpl (capacity);
if (address == 0)
throw new InternalError ("Not enough memory to create direct buffer");
return new DirectByteBufferImpl (address, 0, capacity, capacity, 0, -1, false);
}
private native byte getImpl (int index);
private native void putImpl (int index, byte value);
public byte get ()
{
byte result = getImpl (position () + offset);
position (position () + 1);
return result;
}
public byte get (int index)
{
return getImpl (index);
}
public ByteBuffer put (byte value)
{
putImpl (position (), value);
position (position () + 1);
return this;
}
public ByteBuffer put (int index, byte value)
{
putImpl (index, value);
return this;
}
public ByteBuffer compact ()
{
// FIXME this can sure be optimized using memcpy()
int copied = 0;
while (remaining () > 0)
{
put (copied, get ());
copied++;
}
position (copied);
return this;
}
public ByteBuffer duplicate ()
{
return new DirectByteBufferImpl (
address, offset, capacity (), limit (), position (), -1, isReadOnly ());
}
public ByteBuffer slice ()
{
return new DirectByteBufferImpl (address, position () + offset, remaining (), remaining (), 0, -1, isReadOnly ());
}
public ByteBuffer asReadOnlyBuffer ()
{
return new DirectByteBufferImpl (
address, offset, capacity (), limit (), position (), -1, true);
}
public boolean isReadOnly ()
{
return readOnly;
}
public boolean isDirect ()
{
return true;
}
public CharBuffer asCharBuffer ()
{
return new CharViewBufferImpl (this, position () + offset, remaining (), remaining (), 0, -1, isReadOnly ());
}
public DoubleBuffer asDoubleBuffer ()
{
return new DoubleViewBufferImpl (this, position () + offset, remaining (), remaining (), 0, -1, isReadOnly ());
}
public FloatBuffer asFloatBuffer ()
{
return new FloatViewBufferImpl (this, position () + offset, remaining (), remaining (), 0, -1, isReadOnly ());
}
public IntBuffer asIntBuffer ()
{
return new IntViewBufferImpl (this, position () + offset, remaining (), remaining (), 0, -1, isReadOnly ());
}
public LongBuffer asLongBuffer ()
{
return new LongViewBufferImpl (this, position () + offset, remaining (), remaining (), 0, -1, isReadOnly ());
}
public ShortBuffer asShortBuffer ()
{
return new ShortViewBufferImpl (this, position () + offset, remaining (), remaining (), 0, -1, isReadOnly ());
}
final public char getChar ()
{
// FIXME: this handles big endian only
return (char) (((get () & 0xff) << 8) + (get () & 0xff));
}
final public ByteBuffer putChar (char value)
{
// FIXME: this handles big endian only
put ((byte) ((((int) value) & 0xff00) >> 8));
put ((byte) (((int) value) & 0x00ff));
return this;
}
final public char getChar (int index)
{
// FIXME: this handles big endian only
return (char) (((get (index) & 0xff) << 8) + (get (index + 1) & 0xff));
}
final public ByteBuffer putChar (int index, char value)
{
// FIXME: this handles big endian only
put (index, (byte) ((((int) value) & 0xff00) >> 8));
put (index + 1, (byte) (((int) value) & 0x00ff));
return this;
}
final public short getShort ()
{
// FIXME: this handles big endian only
return (short) (((get () & 0xff) << 8) + (get () & 0xff));
}
final public ByteBuffer putShort (short value)
{
// FIXME: this handles big endian only
put ((byte) ((((int) value) & 0xff00) >> 8));
put ((byte) (((int) value) & 0x00ff));
return this;
}
final public short getShort (int index)
{
// FIXME: this handles big endian only
return (short) (((get (index) & 0xff) << 8) + (get (index + 1) & 0xff));
}
final public ByteBuffer putShort (int index, short value)
{
// FIXME: this handles big endian only
put (index, (byte) ((((int) value) & 0xff00) >> 8));
put (index + 1, (byte) (((int) value) & 0x00ff));
return this;
}
final public int getInt ()
{
// FIXME: this handles big endian only
return (int) (((get () & 0xff) << 24)
+ (get () & 0xff) << 16
+ (get () & 0xff) << 8
+ (get () & 0xff));
}
final public ByteBuffer putInt (int value)
{
// FIXME: this handles big endian only
put ((byte) ((((int) value) & 0xff000000) >> 24));
put ((byte) ((((int) value) & 0x00ff0000) >> 16));
put ((byte) ((((int) value) & 0x0000ff00) >> 8));
put ((byte) (((int) value) & 0x000000ff));
return this;
}
final public int getInt (int index)
{
// FIXME: this handles big endian only
return (int) (((get (index) & 0xff) << 24)
+ (get (index + 1) & 0xff) << 16
+ (get (index + 2) & 0xff) << 8
+ (get (index + 3) & 0xff));
}
final public ByteBuffer putInt (int index, int value)
{
// FIXME: this handles big endian only
put (index, (byte) ((((int) value) & 0xff000000) >> 24));
put (index + 1, (byte) ((((int) value) & 0x00ff0000) >> 16));
put (index + 2, (byte) ((((int) value) & 0x0000ff00) >> 8));
put (index + 3, (byte) (((int) value) & 0x000000ff));
return this;
}
final public long getLong ()
{
// FIXME: this handles big endian only
return (long) (((get () & 0xff) << 56)
+ (get () & 0xff) << 48
+ (get () & 0xff) << 40
+ (get () & 0xff) << 32
+ (get () & 0xff) << 24
+ (get () & 0xff) << 16
+ (get () & 0xff) << 8
+ (get () & 0xff));
}
final public ByteBuffer putLong (long value)
{
// FIXME: this handles big endian only
put ((byte) ((((int) value) & 0xff00000000000000) >> 56));
put ((byte) ((((int) value) & 0x00ff000000000000) >> 48));
put ((byte) ((((int) value) & 0x0000ff0000000000) >> 40));
put ((byte) ((((int) value) & 0x000000ff00000000) >> 32));
put ((byte) ((((int) value) & 0x00000000ff000000) >> 24));
put ((byte) ((((int) value) & 0x0000000000ff0000) >> 16));
put ((byte) ((((int) value) & 0x000000000000ff00) >> 8));
put ((byte) (((int) value) & 0x00000000000000ff));
return this;
}
final public long getLong (int index)
{
// FIXME: this handles big endian only
return (long) (((get (index) & 0xff) << 56)
+ (get (index + 1) & 0xff) << 48
+ (get (index + 2) & 0xff) << 40
+ (get (index + 3) & 0xff) << 32
+ (get (index + 4) & 0xff) << 24
+ (get (index + 5) & 0xff) << 16
+ (get (index + 6) & 0xff) << 8
+ (get (index + 7) & 0xff));
}
final public ByteBuffer putLong (int index, long value)
{
// FIXME: this handles big endian only
put (index, (byte) ((((int) value) & 0xff00000000000000) >> 56));
put (index + 1, (byte) ((((int) value) & 0x00ff000000000000) >> 48));
put (index + 2, (byte) ((((int) value) & 0x0000ff0000000000) >> 40));
put (index + 3, (byte) ((((int) value) & 0x000000ff00000000) >> 32));
put (index + 4, (byte) ((((int) value) & 0x00000000ff000000) >> 24));
put (index + 5, (byte) ((((int) value) & 0x0000000000ff0000) >> 16));
put (index + 6, (byte) ((((int) value) & 0x000000000000ff00) >> 8));
put (index + 7, (byte) (((int) value) & 0x00000000000000ff));
return this;
}
final public float getFloat ()
{
// FIXME: this handles big endian only
return (float) (((get () & 0xff) << 24)
+ (get () & 0xff) << 16
+ (get () & 0xff) << 8
+ (get () & 0xff));
}
final public ByteBuffer putFloat (float value)
{
// FIXME: this handles big endian only
put ((byte) ((((int) value) & 0xff000000) >> 24));
put ((byte) ((((int) value) & 0x00ff0000) >> 16));
put ((byte) ((((int) value) & 0x0000ff00) >> 8));
put ((byte) (((int) value) & 0x000000ff));
return this;
}
final public float getFloat (int index)
{
// FIXME: this handles big endian only
return (float) (((get (index) & 0xff) << 24)
+ (get (index + 1) & 0xff) << 16
+ (get (index + 2) & 0xff) << 8
+ (get (index + 3) & 0xff));
}
final public ByteBuffer putFloat (int index, float value)
{
// FIXME: this handles big endian only
put (index, (byte) ((((int) value) & 0xff000000) >> 24));
put (index + 1, (byte) ((((int) value) & 0x00ff0000) >> 16));
put (index + 2, (byte) ((((int) value) & 0x0000ff00) >> 8));
put (index + 3, (byte) (((int) value) & 0x000000ff));
return this;
}
final public double getDouble ()
{
// FIXME: this handles big endian only
return (double) (((get () & 0xff) << 56)
+ (get () & 0xff) << 48
+ (get () & 0xff) << 40
+ (get () & 0xff) << 32
+ (get () & 0xff) << 24
+ (get () & 0xff) << 16
+ (get () & 0xff) << 8
+ (get () & 0xff));
}
final public ByteBuffer putDouble (double value)
{
// FIXME: this handles big endian only
put ((byte) ((((int) value) & 0xff00000000000000) >> 56));
put ((byte) ((((int) value) & 0x00ff000000000000) >> 48));
put ((byte) ((((int) value) & 0x0000ff0000000000) >> 40));
put ((byte) ((((int) value) & 0x000000ff00000000) >> 32));
put ((byte) ((((int) value) & 0x00000000ff000000) >> 24));
put ((byte) ((((int) value) & 0x0000000000ff0000) >> 16));
put ((byte) ((((int) value) & 0x000000000000ff00) >> 8));
put ((byte) (((int) value) & 0x00000000000000ff));
return this;
}
final public double getDouble (int index)
{
// FIXME: this handles big endian only
return (double) (((get (index) & 0xff) << 56)
+ (get (index + 1) & 0xff) << 48
+ (get (index + 2) & 0xff) << 40
+ (get (index + 3) & 0xff) << 32
+ (get (index + 4) & 0xff) << 24
+ (get (index + 5) & 0xff) << 16
+ (get (index + 6) & 0xff) << 8
+ (get (index + 7) & 0xff));
}
final public ByteBuffer putDouble (int index, double value)
{
// FIXME: this handles big endian only
put (index, (byte) ((((int) value) & 0xff00000000000000) >> 56));
put (index + 1, (byte) ((((int) value) & 0x00ff000000000000) >> 48));
put (index + 2, (byte) ((((int) value) & 0x0000ff0000000000) >> 40));
put (index + 3, (byte) ((((int) value) & 0x000000ff00000000) >> 32));
put (index + 4, (byte) ((((int) value) & 0x00000000ff000000) >> 24));
put (index + 5, (byte) ((((int) value) & 0x0000000000ff0000) >> 16));
put (index + 6, (byte) ((((int) value) & 0x000000000000ff00) >> 8));
put (index + 7, (byte) (((int) value) & 0x00000000000000ff));
return this;
}
}

156
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/* DoubleViewBufferImpl.java --
Copyright (C) 2003 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.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.DoubleBuffer;
class DoubleViewBufferImpl extends DoubleBuffer
{
private boolean readOnly;
private int offset;
private ByteBuffer bb;
private ByteOrder endian;
public DoubleViewBufferImpl (ByteBuffer bb, boolean readOnly)
{
super (bb.remaining () >> 3, bb.remaining () >> 3, bb.position (), 0);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from DoubleByteBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public DoubleViewBufferImpl (ByteBuffer bb, int offset, int capacity,
int limit, int position, int mark,
boolean readOnly)
{
super (limit, limit, offset, position);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from DoubleViewBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public double get ()
{
double result = bb.getDouble ((position () >> 3) + offset);
position (position () + 1);
return result;
}
public double get (int index)
{
return bb.getDouble ((index >> 3) + offset);
}
public DoubleBuffer put (double value)
{
bb.putDouble ((position () >> 3) + offset, value);
return this;
}
public DoubleBuffer put (int index, double value)
{
bb.putDouble ((index >> 3) + offset, value);
return this;
}
public DoubleBuffer compact ()
{
if (position () > 0)
{
// Copy all data from position() to limit() to the beginning of the
// buffer, set position to end of data and limit to capacity
// XXX: This can surely be optimized, for direct and non-direct buffers
int count = limit () - position ();
for (int i = 0; i < count; i++)
{
bb.putDouble ((i >> 3) + offset,
bb.getDouble (((i + position ()) >> 3) + offset));
}
position (count);
limit (capacity ());
}
return this;
}
public DoubleBuffer duplicate ()
{
// Create a copy of this object that shares its content
// FIXME: mark is not correct
return new DoubleViewBufferImpl (bb, offset, capacity (), limit (),
position (), -1, isReadOnly ());
}
public DoubleBuffer slice ()
{
// Create a sliced copy of this object that shares its content.
return new DoubleViewBufferImpl (bb, (position () >> 3) + offset,
remaining (), remaining (), 0, -1,
isReadOnly ());
}
public DoubleBuffer asReadOnlyBuffer ()
{
// Create a copy of this object that shares its content and is read-only
return new DoubleViewBufferImpl (bb, (position () >> 3) + offset,
remaining (), remaining (), 0, -1, true);
}
public boolean isReadOnly ()
{
return readOnly;
}
public boolean isDirect ()
{
return bb.isDirect ();
}
public ByteOrder order ()
{
return ByteOrder.LITTLE_ENDIAN;
}
}

156
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/* FloatViewBufferImpl.java --
Copyright (C) 2003 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.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
class FloatViewBufferImpl extends FloatBuffer
{
private boolean readOnly;
private int offset;
private ByteBuffer bb;
private ByteOrder endian;
public FloatViewBufferImpl (ByteBuffer bb, boolean readOnly)
{
super (bb.remaining () >> 2, bb.remaining () >> 2, bb.position (), 0);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from FloatByteBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public FloatViewBufferImpl (ByteBuffer bb, int offset, int capacity,
int limit, int position, int mark,
boolean readOnly)
{
super (limit, limit, offset, position);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from FloatViewBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public float get ()
{
float result = bb.getFloat ((position () >> 2) + offset);
position (position () + 1);
return result;
}
public float get (int index)
{
return bb.getFloat ((index >> 2) + offset);
}
public FloatBuffer put (float value)
{
bb.putFloat ((position () >> 2) + offset, value);
return this;
}
public FloatBuffer put (int index, float value)
{
bb.putFloat ((index >> 2) + offset, value);
return this;
}
public FloatBuffer compact ()
{
if (position () > 0)
{
// Copy all data from position() to limit() to the beginning of the
// buffer, set position to end of data and limit to capacity
// XXX: This can surely be optimized, for direct and non-direct buffers
int count = limit () - position ();
for (int i = 0; i < count; i++)
{
bb.putFloat ((i >> 2) + offset,
bb.getFloat (((i + position ()) >> 2) + offset));
}
position (count);
limit (capacity ());
}
return this;
}
public FloatBuffer duplicate ()
{
// Create a copy of this object that shares its content
// FIXME: mark is not correct
return new FloatViewBufferImpl (bb, offset, capacity (), limit (),
position (), -1, isReadOnly ());
}
public FloatBuffer slice ()
{
// Create a sliced copy of this object that shares its content.
return new FloatViewBufferImpl (bb, (position () >> 2) + offset,
remaining (), remaining (), 0, -1,
isReadOnly ());
}
public FloatBuffer asReadOnlyBuffer ()
{
// Create a copy of this object that shares its content and is read-only
return new FloatViewBufferImpl (bb, (position () >> 2) + offset,
remaining (), remaining (), 0, -1, true);
}
public boolean isReadOnly ()
{
return readOnly;
}
public boolean isDirect ()
{
return bb.isDirect ();
}
public ByteOrder order ()
{
return ByteOrder.LITTLE_ENDIAN;
}
}

156
libjava/gnu/java/nio/IntViewBufferImpl.java Normal file
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/* IntViewBufferImpl.java --
Copyright (C) 2003 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.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.IntBuffer;
class IntViewBufferImpl extends IntBuffer
{
private boolean readOnly;
private int offset;
private ByteBuffer bb;
private ByteOrder endian;
public IntViewBufferImpl (ByteBuffer bb, boolean readOnly)
{
super (bb.remaining () >> 2, bb.remaining () >> 2, bb.position (), 0);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from IntByteBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public IntViewBufferImpl (ByteBuffer bb, int offset, int capacity,
int limit, int position, int mark,
boolean readOnly)
{
super (limit, limit, offset, position);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from IntViewBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public int get ()
{
int result = bb.getInt ((position () >> 2) + offset);
position (position () + 1);
return result;
}
public int get (int index)
{
return bb.getInt ((index >> 2) + offset);
}
public IntBuffer put (int value)
{
bb.putInt ((position () >> 2) + offset, value);
return this;
}
public IntBuffer put (int index, int value)
{
bb.putInt ((index >> 2) + offset, value);
return this;
}
public IntBuffer compact ()
{
if (position () > 0)
{
// Copy all data from position() to limit() to the beginning of the
// buffer, set position to end of data and limit to capacity
// XXX: This can surely be optimized, for direct and non-direct buffers
int count = limit () - position ();
for (int i = 0; i < count; i++)
{
bb.putInt ((i >> 2) + offset,
bb.getInt (((i + position ()) >> 2) + offset));
}
position (count);
limit (capacity ());
}
return this;
}
public IntBuffer duplicate ()
{
// Create a copy of this object that shares its content
// FIXME: mark is not correct
return new IntViewBufferImpl (bb, offset, capacity (), limit (),
position (), -1, isReadOnly ());
}
public IntBuffer slice ()
{
// Create a sliced copy of this object that shares its content.
return new IntViewBufferImpl (bb, (position () >> 2) + offset,
remaining (), remaining (), 0, -1,
isReadOnly ());
}
public IntBuffer asReadOnlyBuffer ()
{
// Create a copy of this object that shares its content and is read-only
return new IntViewBufferImpl (bb, (position () >> 2) + offset,
remaining (), remaining (), 0, -1, true);
}
public boolean isReadOnly ()
{
return readOnly;
}
public boolean isDirect ()
{
return bb.isDirect ();
}
public ByteOrder order ()
{
return ByteOrder.LITTLE_ENDIAN;
}
}

156
libjava/gnu/java/nio/LongViewBufferImpl.java Normal file
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/* LongViewBufferImpl.java --
Copyright (C) 2003 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.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.LongBuffer;
class LongViewBufferImpl extends LongBuffer
{
private boolean readOnly;
private int offset;
private ByteBuffer bb;
private ByteOrder endian;
public LongViewBufferImpl (ByteBuffer bb, boolean readOnly)
{
super (bb.remaining () >> 3, bb.remaining () >> 3, bb.position (), 0);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from LongByteBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public LongViewBufferImpl (ByteBuffer bb, int offset, int capacity,
int limit, int position, int mark,
boolean readOnly)
{
super (limit, limit, offset, position);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from LongViewBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public long get ()
{
long result = bb.getLong ((position () >> 3) + offset);
position (position () + 1);
return result;
}
public long get (int index)
{
return bb.getLong ((index >> 3) + offset);
}
public LongBuffer put (long value)
{
bb.putLong ((position () >> 3) + offset, value);
return this;
}
public LongBuffer put (int index, long value)
{
bb.putLong ((index >> 3) + offset, value);
return this;
}
public LongBuffer compact ()
{
if (position () > 0)
{
// Copy all data from position() to limit() to the beginning of the
// buffer, set position to end of data and limit to capacity
// XXX: This can surely be optimized, for direct and non-direct buffers
int count = limit () - position ();
for (int i = 0; i < count; i++)
{
bb.putLong ((i >> 3) + offset,
bb.getLong (((i + position ()) >> 3) + offset));
}
position (count);
limit (capacity ());
}
return this;
}
public LongBuffer duplicate ()
{
// Create a copy of this object that shares its content
// FIXME: mark is not correct
return new LongViewBufferImpl (bb, offset, capacity (), limit (),
position (), -1, isReadOnly ());
}
public LongBuffer slice ()
{
// Create a sliced copy of this object that shares its content.
return new LongViewBufferImpl (bb, (position () >> 3) + offset,
remaining (), remaining (), 0, -1,
isReadOnly ());
}
public LongBuffer asReadOnlyBuffer ()
{
// Create a copy of this object that shares its content and is read-only
return new LongViewBufferImpl (bb, (position () >> 3) + offset,
remaining (), remaining (), 0, -1, true);
}
public boolean isReadOnly ()
{
return readOnly;
}
public boolean isDirect ()
{
return bb.isDirect ();
}
public ByteOrder order ()
{
return ByteOrder.LITTLE_ENDIAN;
}
}

156
libjava/gnu/java/nio/ShortViewBufferImpl.java Normal file
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/* ShortViewBufferImpl.java --
Copyright (C) 2003 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.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.ShortBuffer;
class ShortViewBufferImpl extends ShortBuffer
{
private boolean readOnly;
private int offset;
private ByteBuffer bb;
private ByteOrder endian;
public ShortViewBufferImpl (ByteBuffer bb, boolean readOnly)
{
super (bb.remaining () >> 1, bb.remaining () >> 1, bb.position (), 0);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from ShortByteBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public ShortViewBufferImpl (ByteBuffer bb, int offset, int capacity,
int limit, int position, int mark,
boolean readOnly)
{
super (limit, limit, offset, position);
this.bb = bb;
this.readOnly = readOnly;
// FIXME: What if this is called from ShortViewBufferImpl and ByteBuffer has changed its endianess ?
this.endian = bb.order ();
}
public short get ()
{
short result = bb.getShort ((position () >> 1) + offset);
position (position () + 1);
return result;
}
public short get (int index)
{
return bb.getShort ((index >> 1) + offset);
}
public ShortBuffer put (short value)
{
bb.putShort ((position () >> 1) + offset, value);
return this;
}
public ShortBuffer put (int index, short value)
{
bb.putShort ((index >> 1) + offset, value);
return this;
}
public ShortBuffer compact ()
{
if (position () > 0)
{
// Copy all data from position() to limit() to the beginning of the
// buffer, set position to end of data and limit to capacity
// XXX: This can surely be optimized, for direct and non-direct buffers
int count = limit () - position ();
for (int i = 0; i < count; i++)
{
bb.putShort ((i >> 1) + offset,
bb.getShort (((i + position ()) >> 1) + offset));
}
position (count);
limit (capacity ());
}
return this;
}
public ShortBuffer duplicate ()
{
// Create a copy of this object that shares its content
// FIXME: mark is not correct
return new ShortViewBufferImpl (bb, offset, capacity (), limit (),
position (), -1, isReadOnly ());
}
public ShortBuffer slice ()
{
// Create a sliced copy of this object that shares its content.
return new ShortViewBufferImpl (bb, (position () >> 1) + offset,
remaining (), remaining (), 0, -1,
isReadOnly ());
}
public ShortBuffer asReadOnlyBuffer ()
{
// Create a copy of this object that shares its content and is read-only
return new ShortViewBufferImpl (bb, (position () >> 1) + offset,
remaining (), remaining (), 0, -1, true);
}
public boolean isReadOnly ()
{
return readOnly;
}
public boolean isDirect ()
{
return bb.isDirect ();
}
public ByteOrder order ()
{
return ByteOrder.LITTLE_ENDIAN;
}
}

44
libjava/gnu/java/nio/natDirectByteBufferImpl.cc Normal file
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// natDirectByteBufferImpl.cc
/* Copyright (C) 2003 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
#include <config.h>
#include <gcj/cni.h>
#include <jvm.h>
#include <gnu/java/nio/DirectByteBufferImpl.h>
jlong
gnu::java::nio::DirectByteBufferImpl::allocateImpl (jint capacity)
{
// FIXME: implement this
return 0;
}
void
gnu::java::nio::DirectByteBufferImpl::freeImpl (jlong address)
{
// FIXME: implement this
}
jbyte
gnu::java::nio::DirectByteBufferImpl::getImpl (jint index)
{
// FIXME: implement this
// Dont forget: add offset to index
return 0;
}
void
gnu::java::nio::DirectByteBufferImpl::putImpl (jint index, jbyte value)
{
// FIXME: implement this
// Dont forget: add offset to index
}