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2003-05-20 Michael Koch <konqueror@gmx.de> * gnu/java/nio/ByteBufferImpl.java, gnu/java/nio/CharBufferImpl.java, gnu/java/nio/CharViewBufferImpl.java, gnu/java/nio/DirectByteBufferImpl.java, gnu/java/nio/DoubleBufferImpl.java, gnu/java/nio/DoubleViewBufferImpl.java, gnu/java/nio/FloatBufferImpl.java, gnu/java/nio/FloatViewBufferImpl.java, gnu/java/nio/IntBufferImpl.java, gnu/java/nio/IntViewBufferImpl.java, gnu/java/nio/LongBufferImpl.java, gnu/java/nio/LongViewBufferImpl.java, gnu/java/nio/natDirectByteBufferImpl.cc, gnu/java/nio/ShortBufferImpl.java, gnu/java/nio/ShortViewBufferImpl.java: Moved files to java/nio. * gnu/java/nio/SocketChannelImpl.java * java/nio/ByteBuffer.java, java/nio/CharBuffer.java, java/nio/DoubleBuffer.java, java/nio/FloatBuffer.java, java/nio/IntBuffer.java, java/nio/LongBuffer.java, java/nio/ShortBuffer.java: Dont import anything. * java/nio/ByteBufferImpl.java, java/nio/CharBufferImpl.java, java/nio/CharViewBufferImpl.java, java/nio/DirectByteBufferImpl.java, java/nio/DoubleBufferImpl.java, java/nio/DoubleViewBufferImpl.java, java/nio/FloatBufferImpl.java, java/nio/FloatViewBufferImpl.java, java/nio/IntBufferImpl.java, java/nio/IntViewBufferImpl.java, java/nio/LongBufferImpl.java, java/nio/LongViewBufferImpl.java, java/nio/natDirectByteBufferImpl.cc, java/nio/ShortBufferImpl.java, java/nio/ShortViewBufferImpl.java: Moved from gnu/java/nio. * Makefile.am (ordinary_java_source_files): Moved files from gnu/java/nio to java/nio. (nat_source_files): Moved natDirectByteBufferImpl.cc from gnu/java/nio to java/nio. * Makefile.in: Regenerated. From-SVN: r66990
155 lines
4.8 KiB
Java
155 lines
4.8 KiB
Java
/* LongViewBufferImpl.java --
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Copyright (C) 2003 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 java.nio;
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class LongViewBufferImpl extends LongBuffer
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{
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private boolean readOnly;
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private int offset;
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private ByteBuffer bb;
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private ByteOrder endian;
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public LongViewBufferImpl (ByteBuffer bb, boolean readOnly)
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{
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super (bb.remaining () >> 3, bb.remaining () >> 3, bb.position (), 0);
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this.bb = bb;
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this.readOnly = readOnly;
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// FIXME: What if this is called from LongByteBufferImpl and ByteBuffer has changed its endianess ?
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this.endian = bb.order ();
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}
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public LongViewBufferImpl (ByteBuffer bb, int offset, int capacity,
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int limit, int position, int mark,
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boolean readOnly)
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{
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super (limit >> 3, limit >> 3, position >> 3, mark >> 3);
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this.bb = bb;
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this.offset = offset;
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this.readOnly = readOnly;
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// FIXME: What if this is called from LongViewBufferImpl and ByteBuffer has changed its endianess ?
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this.endian = bb.order ();
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}
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public long get ()
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{
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long result = bb.getLong ((position () << 3) + offset);
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position (position () + 1);
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return result;
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}
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public long get (int index)
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{
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return bb.getLong ((index << 3) + offset);
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}
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public LongBuffer put (long value)
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{
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bb.putLong ((position () << 3) + offset, value);
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position (position () + 1);
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return this;
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}
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public LongBuffer put (int index, long value)
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{
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bb.putLong ((index << 3) + offset, value);
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return this;
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}
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public LongBuffer compact ()
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{
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if (position () > 0)
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{
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// Copy all data from position() to limit() to the beginning of the
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// buffer, set position to end of data and limit to capacity
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// XXX: This can surely be optimized, for direct and non-direct buffers
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int count = limit () - position ();
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for (int i = 0; i < count; i++)
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{
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bb.putLong ((i >> 3) + offset,
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bb.getLong (((i + position ()) >> 3) + offset));
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}
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position (count);
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limit (capacity ());
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}
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return this;
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}
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public LongBuffer duplicate ()
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{
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// Create a copy of this object that shares its content
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// FIXME: mark is not correct
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return new LongViewBufferImpl (bb, offset, capacity (), limit (),
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position (), -1, isReadOnly ());
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}
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public LongBuffer slice ()
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{
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// Create a sliced copy of this object that shares its content.
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return new LongViewBufferImpl (bb, (position () >> 3) + offset,
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remaining (), remaining (), 0, -1,
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isReadOnly ());
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}
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public LongBuffer asReadOnlyBuffer ()
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{
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// Create a copy of this object that shares its content and is read-only
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return new LongViewBufferImpl (bb, (position () >> 3) + offset,
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remaining (), remaining (), 0, -1, true);
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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 boolean isDirect ()
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{
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return bb.isDirect ();
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}
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public ByteOrder order ()
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{
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return ByteOrder.LITTLE_ENDIAN;
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}
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}
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