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48f5b6723a
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
213 lines
11 KiB
Java
213 lines
11 KiB
Java
/* DoubleBufferImpl.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.ShortBuffer;
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public final class DoubleBufferImpl extends DoubleBuffer
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{
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private int array_offset;
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private boolean ro;
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public DoubleBufferImpl(int cap, int off, int lim)
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{
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this.backing_buffer = new double[cap];
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this.cap = cap;
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this.position(off);
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this.limit(lim);
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}
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public DoubleBufferImpl(double[] array, int off, int lim)
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{
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this.backing_buffer = array;
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this.cap = array.length;
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this.position(off);
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this.limit(lim);
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}
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public DoubleBufferImpl(DoubleBufferImpl copy)
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{
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backing_buffer = copy.backing_buffer;
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ro = copy.ro;
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position(copy.position());
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limit(copy.limit());
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}
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void inc_pos(int a)
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{
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position(position() + a);
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}
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// private static native double[] nio_cast(byte[]copy);
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// private static native double[] nio_cast(char[]copy);
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// private static native double[] nio_cast(short[]copy);
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// private static native double[] nio_cast(long[]copy);
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// private static native double[] nio_cast(int[]copy);
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// private static native double[] nio_cast(float[]copy);
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// private static native double[] nio_cast(double[]copy);
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private static double[] nio_cast(byte[]copy) { return null; };
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private static double[] nio_cast(char[]copy) { return null; };
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private static double[] nio_cast(short[]copy) { return null; };
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private static double[] nio_cast(long[]copy) { return null; };
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private static double[] nio_cast(int[]copy) { return null; };
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private static double[] nio_cast(float[]copy) { return null; };
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private static double[] nio_cast(double[]copy) { return null; };
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DoubleBufferImpl(byte[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
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// private static native byte nio_get_Byte(DoubleBufferImpl b, int index, int limit);
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// private static native void nio_put_Byte(DoubleBufferImpl b, int index, int limit, byte value);
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private static byte nio_get_Byte(DoubleBufferImpl b, int index, int limit) { return 0; };
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private static void nio_put_Byte(DoubleBufferImpl b, int index, int limit, byte value) { };
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public ByteBuffer asByteBuffer() { ByteBufferImpl res = new ByteBufferImpl(backing_buffer); res.limit((limit()*1)/8); return res; }
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DoubleBufferImpl(char[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
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// private static native char nio_get_Char(DoubleBufferImpl b, int index, int limit);
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// private static native void nio_put_Char(DoubleBufferImpl b, int index, int limit, char value);
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private static char nio_get_Char(DoubleBufferImpl b, int index, int limit) { return ' '; };
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private static void nio_put_Char(DoubleBufferImpl b, int index, int limit, char value) { };
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public CharBuffer asCharBuffer() { CharBufferImpl res = new CharBufferImpl(backing_buffer); res.limit((limit()*2)/8); return res; }
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DoubleBufferImpl(short[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
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// private static native short nio_get_Short(DoubleBufferImpl b, int index, int limit);
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// private static native void nio_put_Short(DoubleBufferImpl b, int index, int limit, short value);
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private static short nio_get_Short(DoubleBufferImpl b, int index, int limit) { return 0; };
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private static void nio_put_Short(DoubleBufferImpl b, int index, int limit, short value) { };
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public ShortBuffer asShortBuffer() { ShortBufferImpl res = new ShortBufferImpl(backing_buffer); res.limit((limit()*2)/8); return res; }
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DoubleBufferImpl(int[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
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// private static native int nio_get_Int(DoubleBufferImpl b, int index, int limit);
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// private static native void nio_put_Int(DoubleBufferImpl b, int index, int limit, int value);
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private static int nio_get_Int(DoubleBufferImpl b, int index, int limit) { return 0; };
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private static void nio_put_Int(DoubleBufferImpl b, int index, int limit, int value) { };
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public IntBuffer asIntBuffer() { IntBufferImpl res = new IntBufferImpl(backing_buffer); res.limit((limit()*4)/8); return res; }
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DoubleBufferImpl(long[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
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// private static native long nio_get_Long(DoubleBufferImpl b, int index, int limit);
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// private static native void nio_put_Long(DoubleBufferImpl b, int index, int limit, long value);
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private static long nio_get_Long(DoubleBufferImpl b, int index, int limit) { return 0; };
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private static void nio_put_Long(DoubleBufferImpl b, int index, int limit, long value) { };
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public LongBuffer asLongBuffer() { LongBufferImpl res = new LongBufferImpl(backing_buffer); res.limit((limit()*8)/8); return res; }
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DoubleBufferImpl(float[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
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// private static native float nio_get_Float(DoubleBufferImpl b, int index, int limit);
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// private static native void nio_put_Float(DoubleBufferImpl b, int index, int limit, float value);
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private static float nio_get_Float(DoubleBufferImpl b, int index, int limit) { return 0.0f; };
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private static void nio_put_Float(DoubleBufferImpl b, int index, int limit, float value) { };
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public FloatBuffer asFloatBuffer() { FloatBufferImpl res = new FloatBufferImpl(backing_buffer); res.limit((limit()*4)/8); return res; }
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DoubleBufferImpl(double[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
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// private static native double nio_get_Double(DoubleBufferImpl b, int index, int limit);
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// private static native void nio_put_Double(DoubleBufferImpl b, int index, int limit, double value);
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private static double nio_get_Double(DoubleBufferImpl b, int index, int limit) { return 0.0d; };
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private static void nio_put_Double(DoubleBufferImpl b, int index, int limit, double value) { };
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public DoubleBuffer asDoubleBuffer() { DoubleBufferImpl res = new DoubleBufferImpl(backing_buffer); res.limit((limit()*8)/8); return res; }
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public boolean isReadOnly()
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{
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return ro;
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}
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public DoubleBuffer slice()
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{
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DoubleBufferImpl A = new DoubleBufferImpl(this);
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A.array_offset = position();
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return A;
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}
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public DoubleBuffer duplicate()
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{
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return new DoubleBufferImpl(this);
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}
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public DoubleBuffer asReadOnlyBuffer()
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{
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DoubleBufferImpl a = new DoubleBufferImpl(this);
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a.ro = true;
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return a;
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}
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public DoubleBuffer 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 backing_buffer != null;
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}
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final public double get()
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{
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double 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 DoubleBuffer put(double b)
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{
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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 double 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 DoubleBuffer put(int index, double b)
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{
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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() { char a = nio_get_Char(this, position(), limit()); inc_pos(2); return a; } final public DoubleBuffer putChar(char value) { nio_put_Char(this, position(), limit(), value); inc_pos(2); return this; } final public char getChar(int index) { char a = nio_get_Char(this, index, limit()); return a; } final public DoubleBuffer putChar(int index, char value) { nio_put_Char(this, index, limit(), value); return this; };
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final public short getShort() { short a = nio_get_Short(this, position(), limit()); inc_pos(2); return a; } final public DoubleBuffer putShort(short value) { nio_put_Short(this, position(), limit(), value); inc_pos(2); return this; } final public short getShort(int index) { short a = nio_get_Short(this, index, limit()); return a; } final public DoubleBuffer putShort(int index, short value) { nio_put_Short(this, index, limit(), value); return this; };
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final public int getInt() { int a = nio_get_Int(this, position(), limit()); inc_pos(4); return a; } final public DoubleBuffer putInt(int value) { nio_put_Int(this, position(), limit(), value); inc_pos(4); return this; } final public int getInt(int index) { int a = nio_get_Int(this, index, limit()); return a; } final public DoubleBuffer putInt(int index, int value) { nio_put_Int(this, index, limit(), value); return this; };
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final public long getLong() { long a = nio_get_Long(this, position(), limit()); inc_pos(8); return a; } final public DoubleBuffer putLong(long value) { nio_put_Long(this, position(), limit(), value); inc_pos(8); return this; } final public long getLong(int index) { long a = nio_get_Long(this, index, limit()); return a; } final public DoubleBuffer putLong(int index, long value) { nio_put_Long(this, index, limit(), value); return this; };
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final public float getFloat() { float a = nio_get_Float(this, position(), limit()); inc_pos(4); return a; } final public DoubleBuffer putFloat(float value) { nio_put_Float(this, position(), limit(), value); inc_pos(4); return this; } final public float getFloat(int index) { float a = nio_get_Float(this, index, limit()); return a; } final public DoubleBuffer putFloat(int index, float value) { nio_put_Float(this, index, limit(), value); return this; };
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final public double getDouble() { return get(); } final public DoubleBuffer putDouble(double value) { return put(value); } final public double getDouble(int index) { return get(index); } final public DoubleBuffer putDouble(int index, double value) { return put(index, value); };
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}
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