Files
gcc/libjava/java/nio/natDirectByteBufferImpl.cc
Per Bothner 40c23042f4 ByteBuffer.java (shiftDown): New helper method.
* java/nio/ByteBuffer.java (shiftDown):  New helper method.
	* java/nio/natDirectByteBufferImpl.cc (shiftDown):  New implementation.
	* java/nio/ByteBufferImpl.java (compact):  Use new shiftDown method.
	* sava/nio/ByteBufferHelper.java:  Remove redundant 'final' specifiers.
	Pass ByteOrder parameter to most methods, since the underlying
	ByteBuffer's order isn't always what we should use.
	* java/nio/ByteBufferImpl.java:  Pass byte-order various places.
	* java/nio/DirectByteBufferImpl.java:  Likewise.
	Use ByteBufferHelper methods.
	* java/nio/MappedByteBufferImpl.java:  Likewise.
	(compact):  Use shiftDown.
	* java/nio/CharViewBufferImpl.java (<init>):  Pass byte-order.
	(get, put):  Use ByteBufferHelper.
	(compact):  Use new shiftDown method.
	(duplicate(boolean)):  New helper method.
	(duplicate, asReadOnlyBuffer):  Use it.
	(order):  Return endian field.
	* java/nio/DoubleViewBufferImpl.java:  Likewise.
	* java/nio/FloatViewBufferImpl.java:  Likewise.
	* java/nio/IntViewBufferImpl.java:  Likewise.
	* java/nio/LongViewBufferImpl.java:  Likewise.
	* java/nio/ShortViewBufferImpl.java:  Likewise.
	* java/nio/CharViewBufferImpl.java (subsequence):  Redundant test.
	* java/nio/DirectByteBufferImpl.java (shiftDown):  New native method.
	(compact):  Re-implement using shiftDown.

From-SVN: r77501
2004-02-08 13:02:53 -08:00

55 lines
1.3 KiB
C++

// natDirectByteBufferImpl.cc
/* Copyright (C) 2003 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
#include <config.h>
#include <gcj/cni.h>
#include <jvm.h>
#include <stdlib.h>
#include <gnu/gcj/RawData.h>
#include <java/nio/DirectByteBufferImpl.h>
gnu::gcj::RawData*
java::nio::DirectByteBufferImpl::allocateImpl (jint capacity)
{
return reinterpret_cast<gnu::gcj::RawData*> (::malloc (capacity));
}
void
java::nio::DirectByteBufferImpl::freeImpl (gnu::gcj::RawData* address)
{
::free (reinterpret_cast<void*> (address));
}
jbyte
java::nio::DirectByteBufferImpl::getImpl (jint index)
{
jbyte* pointer = reinterpret_cast<jbyte*> (address) + offset + index;
return *pointer;
}
void
java::nio::DirectByteBufferImpl::putImpl (jint index, jbyte value)
{
jbyte* pointer = reinterpret_cast<jbyte*> (address) + offset + index;
*pointer = value;
}
void
java::nio::DirectByteBufferImpl::shiftDown
(jint dst_offset, jint src_offset, jint count)
{
jbyte* dst = reinterpret_cast<jbyte*> (address) + offset + dst_offset;
jbyte* src = reinterpret_cast<jbyte*> (address) + offset + src_offset;
::memmove(dst, src, count);
}