diff options
author | Michael Koch <konqueror@gmx.de> | 2003-05-20 08:58:31 +0000 |
---|---|---|
committer | Michael Koch <mkoch@gcc.gnu.org> | 2003-05-20 08:58:31 +0000 |
commit | 3a5eb28322868f15d7daab0f97a5b6833632c854 (patch) | |
tree | fbd6e2d67822568e3097d9f632bb4f24a53a3b95 /libjava/java/nio/LongViewBufferImpl.java | |
parent | 1db0418ae570eff510bb0c52cb5dbed54320d5a4 (diff) | |
download | gcc-3a5eb28322868f15d7daab0f97a5b6833632c854.zip gcc-3a5eb28322868f15d7daab0f97a5b6833632c854.tar.gz gcc-3a5eb28322868f15d7daab0f97a5b6833632c854.tar.bz2 |
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')
-rw-r--r-- | libjava/java/nio/LongViewBufferImpl.java | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/libjava/java/nio/LongViewBufferImpl.java b/libjava/java/nio/LongViewBufferImpl.java new file mode 100644 index 0000000..c7ada48 --- /dev/null +++ b/libjava/java/nio/LongViewBufferImpl.java @@ -0,0 +1,154 @@ +/* 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; + } +} |