mirror of git://gcc.gnu.org/git/gcc.git
73 lines
1.7 KiB
C++
73 lines
1.7 KiB
C++
// natDirectByteBufferImpl.cc
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/* Copyright (C) 2003, 2004 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#include <config.h>
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#include <gcj/cni.h>
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#include <jvm.h>
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#include <stdlib.h>
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#include <gnu/gcj/RawData.h>
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#include <java/nio/VMDirectByteBuffer.h>
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using gnu::gcj::RawData;
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RawData*
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java::nio::VMDirectByteBuffer::allocate (jint capacity)
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{
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return reinterpret_cast<gnu::gcj::RawData*> (::malloc (capacity));
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}
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void
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java::nio::VMDirectByteBuffer::free (gnu::gcj::RawData* address)
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{
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::free (reinterpret_cast<void*> (address));
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}
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jbyte
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java::nio::VMDirectByteBuffer::get (RawData* address, jint index)
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{
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jbyte* pointer = reinterpret_cast<jbyte*> (address) + index;
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return *pointer;
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}
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void
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java::nio::VMDirectByteBuffer::get (RawData* address, jint index,
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jbyteArray dst, jint offset, jint length)
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{
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jbyte* src = reinterpret_cast<jbyte*> (address) + index;
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memcpy (elements (dst) + offset, src, length);
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}
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void
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java::nio::VMDirectByteBuffer::put (gnu::gcj::RawData* address,
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jint index, jbyte value)
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{
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jbyte* pointer = reinterpret_cast<jbyte*> (address) + index;
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*pointer = value;
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}
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RawData*
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java::nio::VMDirectByteBuffer::adjustAddress (RawData* address, jint offset)
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{
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jbyte* start = reinterpret_cast<jbyte*> (address) + offset;
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return reinterpret_cast<RawData*>(start);
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}
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void
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java::nio::VMDirectByteBuffer::shiftDown (RawData* address, jint dst_offset,
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jint src_offset, jint count)
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{
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jbyte* dst = reinterpret_cast<jbyte*> (address) + dst_offset;
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jbyte* src = reinterpret_cast<jbyte*> (address) + src_offset;
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::memmove(dst, src, count);
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}
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