1 /* LongBufferImpl.java --
2 Copyright (C) 2002 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
40 import java.nio.ByteBuffer;
41 import java.nio.CharBuffer;
42 import java.nio.DoubleBuffer;
43 import java.nio.FloatBuffer;
44 import java.nio.IntBuffer;
45 import java.nio.LongBuffer;
46 import java.nio.ShortBuffer;
48 public final class LongBufferImpl extends LongBuffer
50 private int array_offset;
53 public LongBufferImpl(int cap, int off, int lim)
55 this.backing_buffer = new long[cap];
61 public LongBufferImpl(long[] array, int off, int lim)
63 this.backing_buffer = array;
64 this.cap = array.length;
69 public LongBufferImpl(LongBufferImpl copy)
71 backing_buffer = copy.backing_buffer;
74 position(copy.position());
79 position(position() + a);
82 LongBufferImpl(byte[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
83 private static native byte nio_get_Byte(LongBufferImpl b, int index, int limit);
84 private static native void nio_put_Byte(LongBufferImpl b, int index, int limit, byte value);
85 public ByteBuffer asByteBuffer() { ByteBufferImpl res = new ByteBufferImpl(backing_buffer); res.limit((limit()*1)/8); return res; }
87 LongBufferImpl(char[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
88 private static native char nio_get_Char(LongBufferImpl b, int index, int limit);
89 private static native void nio_put_Char(LongBufferImpl b, int index, int limit, char value);
90 public CharBuffer asCharBuffer() { CharBufferImpl res = new CharBufferImpl(backing_buffer); res.limit((limit()*2)/8); return res; }
92 LongBufferImpl(short[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
93 private static native short nio_get_Short(LongBufferImpl b, int index, int limit);
94 private static native void nio_put_Short(LongBufferImpl b, int index, int limit, short value);
95 public ShortBuffer asShortBuffer() { ShortBufferImpl res = new ShortBufferImpl(backing_buffer); res.limit((limit()*2)/8); return res; }
97 LongBufferImpl(int[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
98 private static native int nio_get_Int(LongBufferImpl b, int index, int limit);
99 private static native void nio_put_Int(LongBufferImpl b, int index, int limit, int value);
100 public IntBuffer asIntBuffer() { IntBufferImpl res = new IntBufferImpl(backing_buffer); res.limit((limit()*4)/8); return res; }
102 LongBufferImpl(long[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
103 private static native long nio_get_Long(LongBufferImpl b, int index, int limit);
104 private static native void nio_put_Long(LongBufferImpl b, int index, int limit, long value);
105 public LongBuffer asLongBuffer() { LongBufferImpl res = new LongBufferImpl(backing_buffer); res.limit((limit()*8)/8); return res; }
107 LongBufferImpl(float[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
108 private static native float nio_get_Float(LongBufferImpl b, int index, int limit);
109 private static native void nio_put_Float(LongBufferImpl b, int index, int limit, float value);
110 public FloatBuffer asFloatBuffer() { FloatBufferImpl res = new FloatBufferImpl(backing_buffer); res.limit((limit()*4)/8); return res; }
112 LongBufferImpl(double[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
113 private static native double nio_get_Double(LongBufferImpl b, int index, int limit);
114 private static native void nio_put_Double(LongBufferImpl b, int index, int limit, double value);
115 public DoubleBuffer asDoubleBuffer() { DoubleBufferImpl res = new DoubleBufferImpl(backing_buffer); res.limit((limit()*8)/8); return res; }
117 private static native long[] nio_cast(byte[]copy);
118 private static native long[] nio_cast(char[]copy);
119 private static native long[] nio_cast(short[]copy);
120 private static native long[] nio_cast(long[]copy);
121 private static native long[] nio_cast(int[]copy);
122 private static native long[] nio_cast(float[]copy);
123 private static native long[] nio_cast(double[]copy);
125 public boolean isReadOnly()
130 public LongBuffer slice()
132 LongBufferImpl A = new LongBufferImpl(this);
133 A.array_offset = position();
137 public LongBuffer duplicate()
139 return new LongBufferImpl(this);
142 public LongBuffer asReadOnlyBuffer()
144 LongBufferImpl a = new LongBufferImpl(this);
149 public LongBuffer compact()
154 public boolean isDirect()
156 return backing_buffer != null;
159 final public long get()
161 long e = backing_buffer[position()];
162 position(position()+1);
166 final public LongBuffer put(long b)
168 backing_buffer[position()] = b;
169 position(position()+1);
173 final public long get(int index)
175 return backing_buffer[index];
178 final public LongBuffer put(int index, long b)
180 backing_buffer[index] = b;
184 final public char getChar() { char a = nio_get_Char(this, position(), limit()); inc_pos(2); return a; } final public LongBuffer 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 LongBuffer putChar(int index, char value) { nio_put_Char(this, index, limit(), value); return this; };
185 final public short getShort() { short a = nio_get_Short(this, position(), limit()); inc_pos(2); return a; } final public LongBuffer 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 LongBuffer putShort(int index, short value) { nio_put_Short(this, index, limit(), value); return this; };
186 final public int getInt() { int a = nio_get_Int(this, position(), limit()); inc_pos(4); return a; } final public LongBuffer 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 LongBuffer putInt(int index, int value) { nio_put_Int(this, index, limit(), value); return this; };
187 final public long getLong() { return get(); } final public LongBuffer putLong(long value) { return put(value); } final public long getLong(int index) { return get(index); } final public LongBuffer putLong(int index, long value) { return put(index, value); };
188 final public float getFloat() { float a = nio_get_Float(this, position(), limit()); inc_pos(4); return a; } final public LongBuffer 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 LongBuffer putFloat(int index, float value) { nio_put_Float(this, index, limit(), value); return this; };
189 final public double getDouble() { double a = nio_get_Double(this, position(), limit()); inc_pos(8); return a; } final public LongBuffer putDouble(double value) { nio_put_Double(this, position(), limit(), value); inc_pos(8); return this; } final public double getDouble(int index) { double a = nio_get_Double(this, index, limit()); return a; } final public LongBuffer putDouble(int index, double value) { nio_put_Double(this, index, limit(), value); return this; };