35d0b14df6
* java/nio/ByteBuffer.java (endian): Make non-private so other java.nio classes can inherit it. (<init>): Don't bother clearing array_offset. * java/nio/ByteBuffer.java (allocate): Re-implement using wrap. * java/nio/ByteBuffer.java (get(byte[],int,int)): Check underflow. Remove redundant test. * java/nio/ByteBufferImpl.java (asCharBuffer, asShortBuffer, asIntBuffer, asLongBuffer, asFloatBuffer, asDoubleBuffer): Use new XxxViewBufferImpl constructors. * java/nio/MappedByteBufferImpl.java: Likewise. * java/nio/DirectByteBufferImpl.java: Likewise. * java/nio/ByteBufferImpl.java: Remove one constructor. Inline super in remaining constructor. * java/nio/ByteBuffer.java: Remove unused constructor. * java/nio/ByteBufferImpl.java (shiftDown): New optimized method. * java/nio/ByteBufferImpl.java (get, put): Add array_offset. * java/nio/DirectByteBufferImpl.java (owner): New field. (offset): Remove unused field. (<init>): Modify one and add another constructor. Change callers. (allocateDirect): Removed - not used. (getImpl, putImpl): Make static and pass address explicitly, to make them useful for MappedByteBufferImpl. (get, put): Check for underflow. Modify for new getImpl. (getImpl): New native method where target is array. (get(byte[],int,int)): Use the above. (adjustAddress): New static native method. (slice, duplicate, asReadOnly): New implementations. * java/nio/natDirectByteBufferImpl.cc (getImpl, putImpl, shiftDown, adjustAddress): New or updated native methods. From-SVN: r77919
74 lines
1.8 KiB
C++
74 lines
1.8 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/DirectByteBufferImpl.h>
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using gnu::gcj::RawData;
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using java::nio::DirectByteBufferImpl;
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RawData*
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java::nio::DirectByteBufferImpl::allocateImpl (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::DirectByteBufferImpl::freeImpl (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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DirectByteBufferImpl::getImpl (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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DirectByteBufferImpl::getImpl (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::DirectByteBufferImpl::putImpl (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::DirectByteBufferImpl::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::DirectByteBufferImpl::shiftDown
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(jint dst_offset, jint src_offset, jint count)
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{
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jbyte* dst = reinterpret_cast<jbyte*> (address) + array_offset + dst_offset;
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jbyte* src = reinterpret_cast<jbyte*> (address) + array_offset + src_offset;
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::memmove(dst, src, count);
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}
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