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Diffstat (limited to 'libjava/java/nio/ByteBufferImpl.java')
-rw-r--r-- | libjava/java/nio/ByteBufferImpl.java | 379 |
1 files changed, 0 insertions, 379 deletions
diff --git a/libjava/java/nio/ByteBufferImpl.java b/libjava/java/nio/ByteBufferImpl.java deleted file mode 100644 index 48d7152000b..00000000000 --- a/libjava/java/nio/ByteBufferImpl.java +++ /dev/null @@ -1,379 +0,0 @@ -/* ByteBufferImpl.java -- - Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package java.nio; - -/** - * This is a Heap memory implementation - */ -final class ByteBufferImpl extends ByteBuffer -{ - private boolean readOnly; - - ByteBufferImpl (byte[] buffer, int offset, int capacity, int limit, int position, int mark, boolean readOnly) - { - super (capacity, limit, position, mark); - this.backing_buffer = buffer; - this.array_offset = offset; - this.readOnly = readOnly; - } - - public CharBuffer asCharBuffer () - { - return new CharViewBufferImpl (this, remaining() >> 1); - } - - public ShortBuffer asShortBuffer () - { - return new ShortViewBufferImpl (this, remaining() >> 1); - } - - public IntBuffer asIntBuffer () - { - return new IntViewBufferImpl (this, remaining() >> 2); - } - - public LongBuffer asLongBuffer () - { - return new LongViewBufferImpl (this, remaining() >> 3); - } - - public FloatBuffer asFloatBuffer () - { - return new FloatViewBufferImpl (this, remaining() >> 2); - } - - public DoubleBuffer asDoubleBuffer () - { - return new DoubleViewBufferImpl (this, remaining() >> 3); - } - - public boolean isReadOnly () - { - return readOnly; - } - - public ByteBuffer slice () - { - return new ByteBufferImpl (backing_buffer, array_offset + position (), remaining (), remaining (), 0, -1, isReadOnly ()); - } - - public ByteBuffer duplicate () - { - return new ByteBufferImpl (backing_buffer, array_offset, capacity (), limit (), position (), mark, isReadOnly ()); - } - - public ByteBuffer asReadOnlyBuffer () - { - return new ByteBufferImpl (backing_buffer, array_offset, capacity (), limit (), position (), mark, true); - } - - void shiftDown (int dst_offset, int src_offset, int count) - { - System.arraycopy(backing_buffer, array_offset + src_offset, - backing_buffer, array_offset + dst_offset, - count); - } - - public ByteBuffer compact () - { - checkIfReadOnly(); - mark = -1; - int pos = position(); - if (pos > 0) - { - int count = remaining(); - shiftDown(0, pos, count); - position(count); - limit(capacity()); - } - else - { - position(limit()); - limit(capacity()); - } - return this; - } - - public boolean isDirect () - { - return false; - } - - /** - * Reads the <code>byte</code> at this buffer's current position, - * and then increments the position. - * - * @exception BufferUnderflowException If there are no remaining - * <code>bytes</code> in this buffer. - */ - public byte get () - { - if (pos >= limit) - throw new BufferUnderflowException(); - - return backing_buffer [(pos++) + array_offset]; - } - - /** - * Bulk get - */ - public ByteBuffer get (byte[] dst, int offset, int length) - { - checkArraySize(dst.length, offset, length); - if ( (limit - pos) < length) // check for overflow - throw new BufferUnderflowException(); - - System.arraycopy(backing_buffer, pos + array_offset, - dst, offset, length); - pos += length; - - return this; - } - - /** - * Relative bulk put(), overloads the ByteBuffer impl. - */ - public ByteBuffer put (byte[] src, int offset, int length) - { - if ( (limit - pos) < length) // check for overflow - throw new BufferOverflowException(); - checkArraySize(src.length, offset, length); - - System.arraycopy(src, offset, backing_buffer, pos + array_offset, length); - pos += length; - - return this; - } - - /** - * Relative put method. Writes <code>value</code> to the next position - * in the buffer. - * - * @exception BufferOverflowException If there is no remaining - * space in this buffer. - * @exception ReadOnlyBufferException If this buffer is read-only. - */ - public ByteBuffer put (byte value) - { - if (readOnly) - throw new ReadOnlyBufferException(); - if (pos >= limit) - throw new BufferOverflowException(); - - backing_buffer [(pos++) + array_offset] = value; - return this; - } - - /** - * Absolute get method. Reads the <code>byte</code> at position - * <code>index</code>. - * - * @exception IndexOutOfBoundsException If index is negative or not smaller - * than the buffer's limit. - */ - public byte get (int index) - { - checkIndex(index); - - return backing_buffer [index + array_offset]; - } - - /** - * Absolute put method. Writes <code>value</code> to position - * <code>index</code> in the buffer. - * - * @exception IndexOutOfBoundsException If index is negative or not smaller - * than the buffer's limit. - * @exception ReadOnlyBufferException If this buffer is read-only. - */ - public ByteBuffer put (int index, byte value) - { - checkIfReadOnly(); - checkIndex(index); - - backing_buffer [index + array_offset] = value; - return this; - } - - public char getChar () - { - return ByteBufferHelper.getChar(this, order()); - } - - public ByteBuffer putChar (char value) - { - if (readOnly) - throw new ReadOnlyBufferException (); - if ( (limit-pos) < 2) - throw new BufferOverflowException(); - - if (endian == ByteOrder.LITTLE_ENDIAN) - { - backing_buffer [(pos++) + array_offset] = (byte)(value&0xFF); - backing_buffer [(pos++) + array_offset] = (byte)(value>>8); - } - else - { - backing_buffer [(pos++) + array_offset] = (byte)(value>>8); - backing_buffer [(pos++) + array_offset] = (byte)(value&0xFF); - } - return this; - } - - public char getChar (int index) - { - return ByteBufferHelper.getChar(this, index, order()); - } - - public ByteBuffer putChar (int index, char value) - { - ByteBufferHelper.putChar(this, index, value, order()); - return this; - } - - public short getShort () - { - return ByteBufferHelper.getShort(this, order()); - } - - public ByteBuffer putShort (short value) - { - ByteBufferHelper.putShort(this, value, order()); - return this; - } - - public short getShort (int index) - { - return ByteBufferHelper.getShort(this, index, order()); - } - - public ByteBuffer putShort (int index, short value) - { - ByteBufferHelper.putShort(this, index, value, order()); - return this; - } - - public int getInt () - { - return ByteBufferHelper.getInt(this, order()); - } - - public ByteBuffer putInt (int value) - { - ByteBufferHelper.putInt(this, value, order()); - return this; - } - - public int getInt (int index) - { - return ByteBufferHelper.getInt(this, index, order()); - } - - public ByteBuffer putInt (int index, int value) - { - ByteBufferHelper.putInt(this, index, value, order()); - return this; - } - - public long getLong () - { - return ByteBufferHelper.getLong(this, order()); - } - - public ByteBuffer putLong (long value) - { - ByteBufferHelper.putLong (this, value, order()); - return this; - } - - public long getLong (int index) - { - return ByteBufferHelper.getLong (this, index, order()); - } - - public ByteBuffer putLong (int index, long value) - { - ByteBufferHelper.putLong (this, index, value, order()); - return this; - } - - public float getFloat () - { - return ByteBufferHelper.getFloat (this, order()); - } - - public ByteBuffer putFloat (float value) - { - ByteBufferHelper.putFloat (this, value, order()); - return this; - } - - public float getFloat (int index) - { - return ByteBufferHelper.getFloat (this, index, order()); - } - - public ByteBuffer putFloat (int index, float value) - { - ByteBufferHelper.putFloat (this, index, value, order()); - return this; - } - - public double getDouble () - { - return ByteBufferHelper.getDouble (this, order()); - } - - public ByteBuffer putDouble (double value) - { - ByteBufferHelper.putDouble (this, value, order()); - return this; - } - - public double getDouble (int index) - { - return ByteBufferHelper.getDouble (this, index, order()); - } - - public ByteBuffer putDouble (int index, double value) - { - ByteBufferHelper.putDouble (this, index, value, order()); - return this; - } -} |