248606ee91
2003-02-11 Michael Koch <konqueror@gmx.de> * gnu/java/nio/ByteBufferImpl.java: Reformated and removed some code. (backing_buffer): Removed. (array_offset): Removed. (ro): Renamed to readOnly. (ByteBufferImpl): Use parent constructor, initialize readOnly. * gnu/java/nio/CharBufferImpl.java: Reformated and removed some code. (array_offset): Removed. (ro): Renamed to readOnly. (CharBufferImpl): Use parent constructor, initialize readOnly. (inc_pos): Removed. (order): New method. * gnu/java/nio/DoubleBufferImpl.java: Reformated and removed some code. (array_offset): Removed. (ro): Renamed to readOnly. (DoubleBufferImpl): Use parent constructor, initialize readOnly. (inc_pos): Removed. (order): New method. * gnu/java/nio/FloatBufferImpl.java: Reformated and removed some code. (array_offset): Removed. (ro): Renamed to readOnly. (FloatBufferImpl): Use parent constructor, initialize readOnly. (inc_pos): Removed. (order): New method. * gnu/java/nio/IntBufferImpl.java: Reformated and removed some code. (array_offset): Removed. (ro): Renamed to readOnly. (IntBufferImpl): Use parent constructor, initialize readOnly. (inc_pos): Removed. (order): New method. * gnu/java/nio/LongBufferImpl.java: Reformated and removed some code. (array_offset): Removed. (ro): Renamed to readOnly. (LongBufferImpl): Use parent constructor, initialize readOnly. (inc_pos): Removed. (order): New method. * gnu/java/nio/ShortBufferImpl.java: Reformated and removed some code. (array_offset): Removed. (ro): Renamed to readOnly. (ShortBufferImpl): Use parent constructor, initialize readOnly. (inc_pos): Removed. (order): New method. * Makefile.am (ordinary_java_source_files): Added the following files: gnu/java/nio/ByteBufferImpl.java gnu/java/nio/CharBufferImpl.java gnu/java/nio/DoubleBufferImpl.java gnu/java/nio/FloatBufferImpl.java gnu/java/nio/IntBufferImpl.java gnu/java/nio/LongBufferImpl.java gnu/java/nio/ShortBufferImpl.java java/nio/DoubleBuffer.java java/nio/FloatBuffer.java java/nio/IntBuffer.java java/nio/LongBuffer.java java/nio/ShortBuffer.java (nat_source_files): Added the following files: gnu/java/nio/natByteBufferImpl.cc gnu/java/nio/natCharBufferImpl.cc gnu/java/nio/natDoubleBufferImpl.cc gnu/java/nio/natFloatBufferImpl.cc gnu/java/nio/natIntBufferImpl.cc gnu/java/nio/natLongBufferImpl.cc gnu/java/nio/natShortBufferImpl.cc * Makefile.in: Regenerated. From-SVN: r62692
470 lines
12 KiB
Java
470 lines
12 KiB
Java
/* ByteBufferImpl.java --
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.java.nio;
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import java.nio.ByteBuffer;
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import java.nio.CharBuffer;
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import java.nio.DoubleBuffer;
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import java.nio.FloatBuffer;
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import java.nio.IntBuffer;
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import java.nio.LongBuffer;
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import java.nio.ReadOnlyBufferException;
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import java.nio.ShortBuffer;
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/**
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* This is a Heap memory implementation
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*/
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public final class ByteBufferImpl extends ByteBuffer
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{
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private boolean readOnly;
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public ByteBufferImpl (int cap, int off, int lim)
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{
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super (cap, lim, off, 0);
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this.backing_buffer = new byte [cap];
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readOnly = false;
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}
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public ByteBufferImpl (byte[] array, int off, int lim)
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{
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super (array.length, lim, off, 0);
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this.backing_buffer = array;
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readOnly = false;
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}
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public ByteBufferImpl (ByteBufferImpl copy)
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{
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super (copy.capacity (), copy.limit (), copy.position (), 0);
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backing_buffer = copy.backing_buffer;
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readOnly = copy.isReadOnly ();
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}
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void inc_pos (int toAdd)
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{
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position (position () + toAdd);
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}
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private static native byte[] nio_cast(byte[]copy);
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private static native byte[] nio_cast(char[]copy);
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private static native byte[] nio_cast(short[]copy);
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private static native byte[] nio_cast(long[]copy);
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private static native byte[] nio_cast(int[]copy);
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private static native byte[] nio_cast(float[]copy);
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private static native byte[] nio_cast(double[]copy);
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ByteBufferImpl (byte[] copy)
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{
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super (copy.length, copy.length, 0, 0);
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this.backing_buffer = copy != null ? nio_cast (copy) : null;
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readOnly = false;
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}
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private static native byte nio_get_Byte (ByteBufferImpl b, int index, int limit);
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private static native void nio_put_Byte (ByteBufferImpl b, int index, int limit, byte value);
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public ByteBuffer asByteBuffer ()
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{
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ByteBufferImpl res = new ByteBufferImpl (backing_buffer);
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res.limit ((limit () * 1) / 1);
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return res;
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}
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ByteBufferImpl (char[] copy)
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{
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super (copy.length * 2, copy.length * 2, 0, 0);
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this.backing_buffer = copy != null ? nio_cast (copy) : null;
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readOnly = false;
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}
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private static native char nio_get_Char (ByteBufferImpl b, int index, int limit);
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private static native void nio_put_Char (ByteBufferImpl b, int index, int limit, char value);
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public CharBuffer asCharBuffer ()
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{
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CharBufferImpl res = new CharBufferImpl (backing_buffer);
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res.limit ((limit () * 2) / 1);
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return res;
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}
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ByteBufferImpl (short[] copy)
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{
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super (copy.length, copy.length, 0, 0);
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this.backing_buffer = copy != null ? nio_cast (copy) : null;
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readOnly = false;
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}
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private static native short nio_get_Short (ByteBufferImpl b, int index, int limit);
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private static native void nio_put_Short (ByteBufferImpl b, int index, int limit, short value);
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public ShortBuffer asShortBuffer ()
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{
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ShortBufferImpl res = new ShortBufferImpl (backing_buffer);
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res.limit ((limit () * 2) / 1);
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return res;
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}
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ByteBufferImpl (int[] copy)
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{
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super (copy.length * 4, copy.length * 4, 0, 0);
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this.backing_buffer = copy != null ? nio_cast(copy) : null;
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readOnly = false;
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}
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private static native int nio_get_Int (ByteBufferImpl b, int index, int limit);
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private static native void nio_put_Int (ByteBufferImpl b, int index, int limit, int value);
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public IntBuffer asIntBuffer ()
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{
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IntBufferImpl res = new IntBufferImpl (backing_buffer);
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res.limit ((limit() * 4) / 1);
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return res;
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}
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ByteBufferImpl (long[] copy)
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{
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super (copy.length * 8, copy.length * 8, 0, 0);
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this.backing_buffer = copy != null ? nio_cast (copy) : null;
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readOnly = false;
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}
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private static native long nio_get_Long (ByteBufferImpl b, int index, int limit);
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private static native void nio_put_Long (ByteBufferImpl b, int index, int limit, long value);
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public LongBuffer asLongBuffer ()
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{
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LongBufferImpl res = new LongBufferImpl (backing_buffer);
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res.limit ((limit() * 8) / 1);
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return res;
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}
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ByteBufferImpl (float[] copy)
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{
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super (copy.length * 4, copy.length * 4, 0, 0);
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this.backing_buffer = copy != null ? nio_cast (copy) : null;
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readOnly = false;
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}
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private static native float nio_get_Float (ByteBufferImpl b, int index, int limit);
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private static native void nio_put_Float (ByteBufferImpl b, int index, int limit, float value);
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public FloatBuffer asFloatBuffer ()
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{
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FloatBufferImpl res = new FloatBufferImpl (backing_buffer);
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res.limit ((limit() * 4) / 1);
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return res;
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}
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ByteBufferImpl (double[] copy)
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{
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super (copy.length * 8, copy.length * 8, 0, 0);
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this.backing_buffer = copy != null ? nio_cast (copy) : null;
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readOnly = false;
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}
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private static native double nio_get_Double (ByteBufferImpl b, int index, int limit);
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private static native void nio_put_Double (ByteBufferImpl b, int index, int limit, double value);
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public DoubleBuffer asDoubleBuffer ()
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{
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DoubleBufferImpl res = new DoubleBufferImpl (backing_buffer);
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res.limit ((limit () * 8) / 1);
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return res;
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}
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public boolean isReadOnly()
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{
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return readOnly;
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}
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public ByteBuffer slice()
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{
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return new ByteBufferImpl(this);
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}
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public ByteBuffer duplicate()
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{
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return new ByteBufferImpl(this);
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}
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public ByteBuffer asReadOnlyBuffer()
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{
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ByteBufferImpl a = new ByteBufferImpl(this);
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a.readOnly = true;
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return a;
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}
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public ByteBuffer compact()
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{
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return this;
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}
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public boolean isDirect()
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{
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return false;
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}
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final public byte get()
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{
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byte e = backing_buffer[position()];
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position(position()+1);
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return e;
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}
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final public ByteBuffer put(byte b)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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backing_buffer[position()] = b;
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position(position()+1);
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return this;
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}
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final public byte get(int index)
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{
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return backing_buffer[index];
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}
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final public ByteBuffer put(int index, byte b)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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backing_buffer[index] = b;
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return this;
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}
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final public char getChar ()
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{
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char a = nio_get_Char (this, position (), limit ());
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inc_pos (2);
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return a;
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}
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final public ByteBuffer putChar (char value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Char (this, position (), limit (), value);
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inc_pos (2);
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return this;
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}
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final public char getChar (int index)
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{
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char a = nio_get_Char (this, index, limit ());
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return a;
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}
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final public ByteBuffer putChar (int index, char value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Char (this, index, limit (), value);
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return this;
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}
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final public short getShort ()
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{
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short a = nio_get_Short (this, position (), limit ());
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inc_pos (2);
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return a;
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}
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final public ByteBuffer putShort (short value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Short (this, position (), limit(), value);
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inc_pos (2);
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return this;
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}
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final public short getShort (int index)
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{
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short a = nio_get_Short (this, index, limit ());
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return a;
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}
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final public ByteBuffer putShort (int index, short value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Short (this, index, limit (), value);
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return this;
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}
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final public int getInt ()
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{
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int a = nio_get_Int (this, position (), limit ());
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inc_pos (4);
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return a;
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}
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final public ByteBuffer putInt (int value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Int (this, position (), limit , value);
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inc_pos (4);
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return this;
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}
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final public int getInt (int index)
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{
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int a = nio_get_Int (this, index, limit ());
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return a;
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}
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final public ByteBuffer putInt (int index, int value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Int(this, index, limit (), value);
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return this;
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}
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final public long getLong ()
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{
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long a = nio_get_Long (this, position (), limit ());
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inc_pos (8);
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return a;
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}
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final public ByteBuffer putLong (long value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Long (this, position (), limit (), value);
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inc_pos (8);
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return this;
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}
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final public long getLong (int index)
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{
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long a = nio_get_Long (this, index, limit ());
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return a;
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}
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final public ByteBuffer putLong (int index, long value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Long (this, index, limit (), value);
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return this;
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}
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final public float getFloat ()
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{
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float a = nio_get_Float (this, position (), limit ());
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inc_pos (4);
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return a;
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}
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final public ByteBuffer putFloat (float value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Float (this, position (), limit (), value);
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inc_pos (4);
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return this;
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}
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final public float getFloat (int index)
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{
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float a = nio_get_Float (this, index, limit ());
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return a;
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}
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final public ByteBuffer putFloat (int index, float value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Float (this, index, limit(), value);
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return this;
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}
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final public double getDouble ()
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{
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double a = nio_get_Double (this, position (), limit ());
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inc_pos (8);
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return a;
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}
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final public ByteBuffer putDouble (double value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Double (this, position(), limit (), value);
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inc_pos (8);
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return this;
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}
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final public double getDouble (int index)
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{
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return nio_get_Double (this, index, limit ());
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}
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final public ByteBuffer putDouble (int index, double value)
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{
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if (readOnly)
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throw new ReadOnlyBufferException ();
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nio_put_Double (this, index, limit (), value);
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return this;
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}
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}
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