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authorMichael Koch <konqueror@gmx.de>2003-05-20 08:58:31 +0000
committerMichael Koch <mkoch@gcc.gnu.org>2003-05-20 08:58:31 +0000
commit3a5eb28322868f15d7daab0f97a5b6833632c854 (patch)
treefbd6e2d67822568e3097d9f632bb4f24a53a3b95 /libjava/java/nio/LongViewBufferImpl.java
parent1db0418ae570eff510bb0c52cb5dbed54320d5a4 (diff)
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ByteBufferImpl.java, [...]: Moved files to java/nio.
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
Diffstat (limited to 'libjava/java/nio/LongViewBufferImpl.java')
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1 files changed, 154 insertions, 0 deletions
diff --git a/libjava/java/nio/LongViewBufferImpl.java b/libjava/java/nio/LongViewBufferImpl.java
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+/* LongViewBufferImpl.java --
+ Copyright (C) 2003 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., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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;
+
+class LongViewBufferImpl extends LongBuffer
+{
+ private boolean readOnly;
+ private int offset;
+ private ByteBuffer bb;
+ private ByteOrder endian;
+
+ public LongViewBufferImpl (ByteBuffer bb, boolean readOnly)
+ {
+ super (bb.remaining () >> 3, bb.remaining () >> 3, bb.position (), 0);
+ this.bb = bb;
+ this.readOnly = readOnly;
+ // FIXME: What if this is called from LongByteBufferImpl and ByteBuffer has changed its endianess ?
+ this.endian = bb.order ();
+ }
+
+ public LongViewBufferImpl (ByteBuffer bb, int offset, int capacity,
+ int limit, int position, int mark,
+ boolean readOnly)
+ {
+ super (limit >> 3, limit >> 3, position >> 3, mark >> 3);
+ this.bb = bb;
+ this.offset = offset;
+ this.readOnly = readOnly;
+ // FIXME: What if this is called from LongViewBufferImpl and ByteBuffer has changed its endianess ?
+ this.endian = bb.order ();
+ }
+
+ public long get ()
+ {
+ long result = bb.getLong ((position () << 3) + offset);
+ position (position () + 1);
+ return result;
+ }
+
+ public long get (int index)
+ {
+ return bb.getLong ((index << 3) + offset);
+ }
+
+ public LongBuffer put (long value)
+ {
+ bb.putLong ((position () << 3) + offset, value);
+ position (position () + 1);
+ return this;
+ }
+
+ public LongBuffer put (int index, long value)
+ {
+ bb.putLong ((index << 3) + offset, value);
+ return this;
+ }
+
+ public LongBuffer compact ()
+ {
+ if (position () > 0)
+ {
+ // Copy all data from position() to limit() to the beginning of the
+ // buffer, set position to end of data and limit to capacity
+ // XXX: This can surely be optimized, for direct and non-direct buffers
+
+ int count = limit () - position ();
+
+ for (int i = 0; i < count; i++)
+ {
+ bb.putLong ((i >> 3) + offset,
+ bb.getLong (((i + position ()) >> 3) + offset));
+ }
+
+ position (count);
+ limit (capacity ());
+ }
+
+ return this;
+ }
+
+ public LongBuffer duplicate ()
+ {
+ // Create a copy of this object that shares its content
+ // FIXME: mark is not correct
+ return new LongViewBufferImpl (bb, offset, capacity (), limit (),
+ position (), -1, isReadOnly ());
+ }
+
+ public LongBuffer slice ()
+ {
+ // Create a sliced copy of this object that shares its content.
+ return new LongViewBufferImpl (bb, (position () >> 3) + offset,
+ remaining (), remaining (), 0, -1,
+ isReadOnly ());
+ }
+
+ public LongBuffer asReadOnlyBuffer ()
+ {
+ // Create a copy of this object that shares its content and is read-only
+ return new LongViewBufferImpl (bb, (position () >> 3) + offset,
+ remaining (), remaining (), 0, -1, true);
+ }
+
+ public boolean isReadOnly ()
+ {
+ return readOnly;
+ }
+
+ public boolean isDirect ()
+ {
+ return bb.isDirect ();
+ }
+
+ public ByteOrder order ()
+ {
+ return ByteOrder.LITTLE_ENDIAN;
+ }
+}