org.nd4j.linalg.api.buffer.BaseDataBuffer Maven / Gradle / Ivy
/*
* ******************************************************************************
* *
* *
* * This program and the accompanying materials are made available under the
* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * Unless required by applicable law or agreed to in writing, software
* * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* * License for the specific language governing permissions and limitations
* * under the License.
* *
* * SPDX-License-Identifier: Apache-2.0
* *****************************************************************************
*/
package org.nd4j.linalg.api.buffer;
import lombok.NonNull;
import lombok.extern.slf4j.Slf4j;
import lombok.val;
import org.bytedeco.javacpp.*;
import org.bytedeco.javacpp.indexer.*;
import org.nd4j.common.config.ND4JSystemProperties;
import org.nd4j.linalg.api.memory.MemoryWorkspace;
import org.nd4j.common.primitives.AtomicBoolean;
import org.nd4j.common.primitives.AtomicDouble;
import org.nd4j.common.primitives.Triple;
import org.nd4j.common.util.ArrayUtil;
import java.io.*;
import java.nio.*;
import java.util.Collection;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
@Slf4j
public abstract class BaseDataBuffer implements DataBuffer {
/**
* @deprecated Use {@link ND4JSystemProperties#DATABUFFER_TO_STRING_MAX_ELEMENTS}
*/
public static String TO_STRING_MAX_ELEMENTS = ND4JSystemProperties.DATABUFFER_TO_STRING_MAX_ELEMENTS;
private static int TO_STRING_MAX;
static {
String s = System.getProperty(ND4JSystemProperties.DATABUFFER_TO_STRING_MAX_ELEMENTS);
if(s != null ){
try {
TO_STRING_MAX = Integer.parseInt(s);
} catch (NumberFormatException e){
log.warn("Invalid value for key {}: \"{}\"", ND4JSystemProperties.DATABUFFER_TO_STRING_MAX_ELEMENTS, s);
TO_STRING_MAX = 1000;
}
} else {
TO_STRING_MAX = 1000;
}
}
protected DataType type;
protected long length;
protected long underlyingLength;
protected long offset;
protected byte elementSize;
//protected transient ByteBuffer wrappedBuffer;
protected transient DataBuffer wrappedDataBuffer;
protected transient long workspaceGenerationId = 0L;
protected AllocationMode allocationMode;
protected transient Indexer indexer = null;
protected transient Pointer pointer = null;
protected transient boolean attached = false;
protected transient MemoryWorkspace parentWorkspace;
// Allocator-related stuff. Moved down here to avoid opType casting.
protected transient DataBuffer originalBuffer;
protected transient long originalOffset = 0;
protected transient boolean constant = false;
protected transient boolean released = false;
protected transient AtomicBoolean referenced = new AtomicBoolean(false);
//protected transient Collection> references = new ArrayList<>();
public BaseDataBuffer() {}
/**
* Initialize the opType of this buffer
*/
protected abstract void initTypeAndSize();
@Override
public int getElementSize() {
return elementSize;
}
@Override
public long getGenerationId() {
if(parentWorkspace != null){
return workspaceGenerationId;
} else if(wrappedDataBuffer != null && wrappedDataBuffer.isAttached()){
return wrappedDataBuffer.getGenerationId();
} else if(originalBuffer != null && originalBuffer.isAttached()){
return originalBuffer.getGenerationId();
}
return workspaceGenerationId;
}
/**
*
* Meant for creating another view of a buffer
* @param pointer the underlying buffer to create a view from
* @param indexer the indexer for the pointer
* @param length the length of the view
*/
public BaseDataBuffer(Pointer pointer, Indexer indexer, long length) {
if (length < 0)
throw new IllegalArgumentException("Length must be >= 0");
initTypeAndSize();
this.length = length;
this.allocationMode = AllocationMode.MIXED_DATA_TYPES;
this.underlyingLength = length;
this.wrappedDataBuffer = this;
if (length > 0) {
this.pointer = pointer;
setIndexer(indexer);
}
}
protected void setIndexer(Indexer indexer) {
this.indexer = indexer;
}
protected void pickReferent(BaseDataBuffer referent) {
referenced.compareAndSet(false, true);
//references.add(new WeakReference(this));
}
/**
*
* Meant for creating another view of a buffer
* @param underlyingBuffer the underlying buffer to create a view from
* @param length the length of the view
* @param offset the offset for the view
*/
protected BaseDataBuffer(DataBuffer underlyingBuffer, long length, long offset) {
if (length < 0)
throw new IllegalArgumentException("Length must be >= 0");
if (length == 0)
length = 1;
initTypeAndSize();
this.length = length;
this.offset = offset;
this.allocationMode = underlyingBuffer.allocationMode();
this.elementSize = (byte) underlyingBuffer.getElementSize();
this.underlyingLength = underlyingBuffer.underlyingLength();
this.wrappedDataBuffer = underlyingBuffer;
// we're not referencing constant buffers
if (!underlyingBuffer.isConstant())
((BaseDataBuffer) underlyingBuffer).pickReferent(this);
// Adding link to original databuffer
if (underlyingBuffer.originalDataBuffer() == null) {
this.originalBuffer = underlyingBuffer;
this.originalOffset = offset;
} else {
this.originalBuffer = underlyingBuffer.originalDataBuffer();
// FIXME: please don't remove this comment, since there's probably a bug in current offset() impl,
// and this line will change originalOffset accroding to proper offset() impl
// FIXME: [email protected]
this.originalOffset = offset; // + underlyingBuffer.originalOffset();
}
pointer = underlyingBuffer.pointer();
setIndexer(underlyingBuffer.indexer());
}
/**
* Original DataBuffer.
* In case if we have a view derived from another view, derived from some other view, original DataBuffer will point to the originating DataBuffer, where all views come from.
*/
@Override
public DataBuffer originalDataBuffer() {
return originalBuffer;
}
//sets the nio wrapped buffer (allows to be overridden for other use cases like cuda)
protected void setNioBuffer() {
if (elementSize * length >= Integer.MAX_VALUE)
throw new IllegalArgumentException("Unable to create buffer of length " + length);
//wrappedBuffer = pointer().asByteBuffer();
}
/**
* Returns the indexer for the buffer
*
* @return
*/
@Override
public Indexer indexer() {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
return indexer;
}
@Override
public Pointer pointer() {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
if (underlyingDataBuffer() != null && underlyingDataBuffer() != this) {
if (underlyingDataBuffer().wasClosed())
throw new IllegalStateException("You can't use DataBuffer once it was released");
return underlyingDataBuffer().pointer();
} else {
if (underlyingDataBuffer() != null)
if (((BaseDataBuffer) underlyingDataBuffer()).released)
throw new IllegalStateException("Underlying buffer was released via close() call");
if (released)
throw new IllegalStateException("This buffer was already released via close() call");
return pointer;
}
}
@Override
public DataBuffer underlyingDataBuffer() {
return wrappedDataBuffer;
}
@Override
public long offset() {
return offset;
}
@Override
public AllocationMode allocationMode() {
return allocationMode;
}
@Override
@Deprecated
public void persist() {
throw new UnsupportedOperationException();
}
@Override
@Deprecated
public boolean isPersist() {
throw new UnsupportedOperationException();
}
@Override
@Deprecated
public void unPersist() {
throw new UnsupportedOperationException();
}
protected void fillPointerWithZero() {
Pointer.memset(this.pointer(), 0, getElementSize() * length());
}
@Override
public void copyAtStride(DataBuffer buf, long n, long stride, long yStride, long offset, long yOffset) {
if (dataType() == DataType.FLOAT) {
for (int i = 0; i < n; i++) {
put(offset + i * stride, buf.getFloat(yOffset + i * yStride));
}
} else {
for (int i = 0; i < n; i++) {
put(offset + i * stride, buf.getDouble(yOffset + i * yStride));
}
}
}
@Override
@Deprecated
public void removeReferencing(String id) {
//referencing.remove(id);
}
@Override
@Deprecated
public Collection references() {
throw new UnsupportedOperationException();
//return referencing;
}
public abstract Pointer addressPointer();
/*
@Override
public Pointer addressPointer() {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
if (offset() > 0) {
Pointer ret;
// offset is accounted at native side
final long retAddress = pointer().address();
// directly set address at construction since Pointer.address has not setter.
if (dataType() == DataType.DOUBLE) {
ret = new DoublePointer(pointer()) {
{
address = retAddress;
}
};
} else if (dataType() == DataType.FLOAT) {
ret = new FloatPointer(pointer()) {
{
address = retAddress;
}
};
} else if (dataType() == DataType.INT) {
ret = new IntPointer(pointer()) {
{
address = retAddress;
}
};
} else if (dataType() == DataType.LONG) {
ret = new LongPointer(pointer()) {
{
address = retAddress;
}
};
} else {
ret = new Pointer(pointer()) {
{
address = retAddress;
}
};
}
ret.limit(ret.limit() - offset());
ret.capacity(ret.capacity() - offset());
return ret;
}
return pointer();
}
*/
@Override
public long address() {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
return pointer().address();
}
@Override
@Deprecated
public void addReferencing(String id) {
//referencing.add(id);
}
@Override
public void assign(long[] indices, float[] data, boolean contiguous, long inc) {
if (indices.length != data.length)
throw new IllegalArgumentException("Indices and data length must be the same");
if (indices.length > length())
throw new IllegalArgumentException("More elements than space to assign. This buffer is of length "
+ length() + " where the indices are of length " + data.length);
for (int i = 0; i < indices.length; i++) {
put(indices[i], data[i]);
}
}
@Override
public void setData(int[] data) {
for (int i = 0; i < data.length; i++) {
put(i, data[i]);
}
}
@Override
public void setData(float[] data) {
for (int i = 0; i < data.length; i++) {
put(i, data[i]);
}
}
@Override
public void setData(double[] data) {
for (int i = 0; i < data.length; i++) {
put(i, data[i]);
}
}
@Override
public void setData(long[] data) {
for (int i = 0; i < data.length; i++) {
put(i, data[i]);
}
}
@Override
public void setData(byte[] data) {
for (int i = 0; i < data.length; i++) {
put(i, data[i]);
}
}
@Override
public void setData(short[] data) {
for (int i = 0; i < data.length; i++) {
put(i, data[i]);
}
}
@Override
public void setData(boolean[] data) {
for (int i = 0; i < data.length; i++) {
put(i, data[i]);
}
}
@Override
public void assign(long[] indices, double[] data, boolean contiguous, long inc) {
if (indices.length != data.length)
throw new IllegalArgumentException("Indices and data length must be the same");
if (indices.length > length())
throw new IllegalArgumentException("More elements than space to assign. This buffer is of length "
+ length() + " where the indices are of length " + data.length);
for (int i = 0; i < indices.length; i += inc) {
put(indices[i], data[i]);
}
}
@Override
public void assign(DataBuffer data) {
if (data.length() != length())
throw new IllegalArgumentException("Unable to assign buffer of length " + data.length()
+ " to this buffer of length " + length());
for (int i = 0; i < data.length(); i++) {
put(i, data.getDouble(i));
}
}
@Override
public void assign(long[] indices, float[] data, boolean contiguous) {
assign(indices, data, contiguous, 1);
}
@Override
public void assign(long[] indices, double[] data, boolean contiguous) {
assign(indices, data, contiguous, 1);
}
@Override
public long underlyingLength() {
return underlyingLength;
}
@Override
public long length() {
return length;
}
@Override
public void assign(Number value) {
assign(value, 0);
}
@Override
public double[] getDoublesAt(long offset, long inc, int length) {
if (offset + length > length())
length -= offset;
double[] ret = new double[length];
for (int i = 0; i < length; i++) {
ret[i] = getDouble(i * inc + offset);
}
return ret;
}
@Override
public double[] getDoublesAt(long offset, int length) {
return getDoublesAt(offset, 1, length);
}
@Override
public float[] getFloatsAt(long offset, int length) {
return getFloatsAt(offset, 1, length);
}
@Override
public float[] getFloatsAt(long offset, long inc, int length) {
if (offset + length > length())
length -= offset;
float[] ret = new float[length];
for (int i = 0; i < length; i ++) {
ret[i] = getFloat(i * inc + offset);
}
return ret;
}
@Override
public long[] getLongsAt(long offset, int length) {
return getLongsAt(offset, 1, length);
}
@Override
public long[] getLongsAt(long offset, long inc, int length) {
if (offset + length > length())
length -= offset;
long[] ret = new long[length];
for (int i = 0; i < length; i++) {
ret[i] = getLong(i * inc + offset);
}
return ret;
}
@Override
public int[] getIntsAt(long offset, int length) {
return getIntsAt(offset, 1, length);
}
@Override
public int[] getIntsAt(long offset, long inc, int length) {
if (offset + length > length())
length -= offset;
int[] ret = new int[length];
for (int i = 0; i < length; i++) {
ret[i] = getInt(i * inc + offset);
}
return ret;
}
@Override
public DataBuffer dup() {
DataBuffer ret = create(length);
for (int i = 0; i < ret.length(); i++)
ret.put(i, getDouble(i));
return ret;
}
/**
* Create with length
* @param length a databuffer of the same opType as
* this with the given length
* @return a data buffer with the same length and datatype as this one
*/
protected abstract DataBuffer create(long length);
/**
* Create the data buffer
* with respect to the given byte buffer
* @param data the buffer to create
* @return the data buffer based on the given buffer
*/
public abstract DataBuffer create(double[] data);
/**
* Create the data buffer
* with respect to the given byte buffer
* @param data the buffer to create
* @return the data buffer based on the given buffer
*/
public abstract DataBuffer create(float[] data);
/**
* Create the data buffer
* with respect to the given byte buffer
* @param data the buffer to create
* @return the data buffer based on the given buffer
*/
public abstract DataBuffer create(int[] data);
@Override
public void assign(long[] offsets, long[] strides, DataBuffer... buffers) {
assign(offsets, strides, length(), buffers);
}
@Override
public byte[] asBytes() {
//NOTE: DataOutputStream is big endian
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
val dataType = dataType();
switch (dataType) {
case DOUBLE:
try {
for (int i = 0; i < length(); i++) {
dos.writeDouble(getDouble(i));
}
} catch (IOException e) {
throw new RuntimeException(e);
}
break;
case FLOAT:
try {
for (int i = 0; i < length(); i++) {
dos.writeFloat(getFloat(i));
}
} catch (IOException e) {
throw new RuntimeException(e);
}
break;
case HALF:
try {
for (int i = 0; i < length(); i++) {
dos.writeShort(HalfIndexer.fromFloat(getFloat(i)));
}
} catch (IOException e) {
throw new RuntimeException(e);
}
break;
case BOOL:
try {
for (int i = 0; i < length(); i++) {
dos.writeByte(getInt(i) == 0 ? (byte) 0 : (byte) 1);
}
} catch (IOException e) {
throw new RuntimeException(e);
}
break;
case BYTE:
try {
for (int i = 0; i < length(); i++) {
dos.writeByte((byte) getShort(i));
}
} catch (IOException e) {
throw new RuntimeException(e);
}
break;
case UBYTE:
try {
UByteIndexer u = (UByteIndexer) indexer;
for (int i = 0; i < length(); i++) {
dos.writeByte(u.get(i));
}
} catch (IOException e) {
throw new RuntimeException(e);
}
break;
case SHORT:
try{
for (int i = 0; i < length(); i++) {
dos.writeShort(getShort(i));
}
} catch (IOException e) {
throw new RuntimeException(e);
}
break;
case INT:
try {
for (int i = 0; i < length(); i++) {
dos.writeInt(getInt(i));
}
} catch (IOException e) {
throw new RuntimeException(e);
}
break;
case LONG:
try {
for (int i = 0; i < length(); i++) {
dos.writeLong(getLong(i));
}
} catch (IOException e) {
throw new RuntimeException(e);
}
break;
case BFLOAT16:
case UINT16:
//Treat BFloat16 and UINT16 as bytes
byte[] temp = new byte[(int)(2*length)];
asNio().get(temp);
try {
if(ByteOrder.nativeOrder().equals(ByteOrder.LITTLE_ENDIAN)) {
//Switch endianness to big endian
for (int i = 0; i < temp.length / 2; i++) {
dos.write(temp[2 * i + 1]);
dos.write(temp[2 * i]);
}
} else {
//Keep as big endian
dos.write(temp);
}
} catch (IOException e){
throw new RuntimeException(e);
}
break;
case UINT64:
//Treat unsigned long (UINT64) as 8 bytes
byte[] temp2 = new byte[(int)(8*length)];
asNio().get(temp2);
try {
if(ByteOrder.nativeOrder().equals(ByteOrder.LITTLE_ENDIAN)) {
//Switch endianness to big endian
for (int i = 0; i < temp2.length / 8; i++) {
for( int j=0; j<8; j++ ){
dos.write(temp2[8 * i + (7-j)]);
}
}
} else {
//Keep as big endian
dos.write(temp2);
}
} catch (IOException e){
throw new RuntimeException(e);
}
break;
case UINT32:
//Treat unsigned integer (UINT32) as 4 bytes
byte[] temp3 = new byte[(int)(4*length)];
asNio().get(temp3);
try {
if(ByteOrder.nativeOrder().equals(ByteOrder.LITTLE_ENDIAN)) {
//Switch endianness to big endian
for (int i = 0; i < temp3.length / 4; i++) {
for( int j=0; j<4; j++ ){
dos.write(temp3[4 * i + (3-j)]);
}
}
} else {
//Keep as big endian
dos.write(temp3);
}
} catch (IOException e){
throw new RuntimeException(e);
}
break;
case UTF8:
byte[] temp4 = new byte[(int)length];
asNio().get(temp4);
try {
dos.write(temp4);
} catch (IOException e){
throw new RuntimeException(e);
}
break;
default:
throw new UnsupportedOperationException("Unknown data type: [" + dataType + "]");
}
return bos.toByteArray();
}
@Override
public float[] asFloat() {
if (length >= Integer.MAX_VALUE)
throw new IllegalArgumentException("Unable to create array of length " + length);
float[] ret = new float[(int) length];
for (int i = 0; i < length; i++)
ret[i] = getFloatUnsynced(i);
return ret;
}
@Override
public double[] asDouble() {
if (length >= Integer.MAX_VALUE)
throw new IllegalArgumentException("Unable to create array of length " + length);
double[] ret = new double[(int) length];
for (int i = 0; i < length; i++)
ret[i] = getDoubleUnsynced(i);
return ret;
}
@Override
public int[] asInt() {
if (length >= Integer.MAX_VALUE)
throw new IllegalArgumentException("Unable to create array of length " + length);
int[] ret = new int[(int) length];
for (int i = 0; i < length; i++)
ret[i] = getIntUnsynced(i);
return ret;
}
@Override
public long[] asLong() {
if (length >= Integer.MAX_VALUE)
throw new IllegalArgumentException("Unable to create array of length " + length);
long[] ret = new long[(int) length];
for (int i = 0; i < length; i++)
ret[i] = getLongUnsynced(i);
return ret;
}
@Override
public double getDouble(long i) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
if (indexer == null) {
throw new IllegalStateException("Indexer must never be null");
}
switch (dataType()) {
case FLOAT:
return ((FloatIndexer) indexer).get(i);
case UINT32:
return ((UIntIndexer) indexer).get(i);
case INT:
return ((IntIndexer) indexer).get(i);
case BFLOAT16:
return ((Bfloat16Indexer) indexer).get(i);
case HALF:
return ((HalfIndexer) indexer).get(i);
case UINT16:
return ((UShortIndexer) indexer).get(i);
case SHORT:
return ((ShortIndexer) indexer).get(i);
case UINT64:
case LONG:
return ((LongIndexer) indexer).get(i);
case BOOL:
return ((BooleanIndexer) indexer).get(i) ? 1.0 : 0.0;
case DOUBLE:
return ((DoubleIndexer) indexer).get(i);
case BYTE:
return ((ByteIndexer) indexer).get(i);
case UBYTE:
return ((UByteIndexer) indexer).get(i);
default:
throw new UnsupportedOperationException("Cannot get double value from buffer of type " + dataType());
}
}
@Override
public long getLong(long i) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
switch (dataType()) {
case FLOAT:
return (long) ((FloatIndexer) indexer).get(i);
case DOUBLE:
return (long) ((DoubleIndexer) indexer).get(i);
case BFLOAT16:
return (long) ((Bfloat16Indexer) indexer).get(i);
case HALF:
return (long) ((HalfIndexer) indexer).get( i);
case UINT64: //Fall through
case LONG:
return ((LongIndexer) indexer).get(i);
case UINT32:
return (long) ((UIntIndexer) indexer).get(i);
case INT:
return (long) ((IntIndexer) indexer).get(i);
case UINT16:
return (long) ((UShortIndexer) indexer).get(i);
case SHORT:
return (long) ((ShortIndexer) indexer).get(i);
case BYTE:
return (long) ((ByteIndexer) indexer).get(i);
case UBYTE:
return (long) ((UByteIndexer) indexer).get(i);
case BOOL:
return ((BooleanIndexer) indexer).get(i) ? 1L : 0L;
default:
throw new UnsupportedOperationException("Cannot get long value from buffer of type " + dataType());
}
}
/**
* Special method for
* @param i
* @return
*/
protected short getShort(long i) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
switch (dataType()) {
case DOUBLE:
return (short) ((DoubleIndexer) indexer).get(i);
case BFLOAT16:
return (short) ((Bfloat16Indexer) indexer).get(i);
case HALF:
return (short) ((HalfIndexer) indexer).get(i);
case BOOL:
return (short) (((BooleanIndexer) indexer).get(i) ? 1 : 0);
case UINT32:
return (short) ((UIntIndexer)indexer).get(i);
case INT:
return (short) ((IntIndexer) indexer).get(i);
case UINT16:
case SHORT:
return ((ShortIndexer) indexer).get(i);
case BYTE:
return (short) ((ByteIndexer) indexer).get(i);
case UINT64:
case LONG:
return (short) ((LongIndexer) indexer).get(i);
case FLOAT:
return (short) ((FloatIndexer) indexer).get(i);
default:
throw new UnsupportedOperationException("Cannot get short value from buffer of type " + dataType());
}
}
/**
*
* @param v
* @return
*/
public static short fromFloat(float v) {
return ArrayUtil.fromFloat(v);
}
@Override
public float getFloat(long i) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
switch (dataType()) {
case DOUBLE:
return (float) ((DoubleIndexer) indexer).get(i);
case BOOL:
return ((BooleanIndexer) indexer).get(i) ? 1.f : 0.f;
case UINT32:
return (float) ((UIntIndexer)indexer).get(i);
case INT:
return (float) ((IntIndexer) indexer).get(i);
case UINT16:
return ((UShortIndexer) indexer).get(i);
case SHORT:
return (float) ((ShortIndexer) indexer).get(i);
case BFLOAT16:
return ((Bfloat16Indexer) indexer).get(i);
case HALF:
return ((HalfIndexer) indexer).get(i);
case UBYTE:
return (float) ((UByteIndexer) indexer).get(i);
case BYTE:
return (float) ((ByteIndexer) indexer).get(i);
case UINT64: //Fall through
case LONG:
return (float) ((LongIndexer) indexer).get(i);
case FLOAT:
return ((FloatIndexer) indexer).get(i);
default:
throw new UnsupportedOperationException("Cannot get float value from buffer of type " + dataType());
}
}
@Override
public int getInt(long i) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
switch (dataType()) {
case DOUBLE:
return (int) ((DoubleIndexer) indexer).get(i);
case BOOL:
return ((BooleanIndexer) indexer).get(i) ? 1 : 0;
case UINT32:
return (int)((UIntIndexer) indexer).get(i);
case INT:
return ((IntIndexer) indexer).get(i);
case BFLOAT16:
return (int) ((Bfloat16Indexer) indexer).get(i);
case HALF:
return (int) ((HalfIndexer) indexer).get(i);
case UINT16:
return ((UShortIndexer) indexer).get(i);
case SHORT:
return ((ShortIndexer) indexer).get(i);
case UBYTE:
return ((UByteIndexer) indexer).get(i);
case BYTE:
return ((ByteIndexer) indexer).get(i);
case UINT64: //Fall through
case LONG:
return (int) ((LongIndexer) indexer).get(i);
case FLOAT:
return (int) ((FloatIndexer) indexer).get(i);
default:
throw new UnsupportedOperationException("Cannot get integer value from buffer of type " + dataType());
}
}
@Override
public Number getNumber(long i) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
if (dataType() == DataType.DOUBLE)
return getDouble(i);
else if (dataType() == DataType.INT)
return getInt(i);
else if (dataType() == DataType.LONG)
return getLong(i);
return getFloat(i);
}
public abstract void pointerIndexerByCurrentType(DataType currentType);
public void putByDestinationType(long i, Number element, DataType globalType) {
if (globalType == DataType.INT || type == DataType.INT || globalType == DataType.UINT16 || globalType == DataType.UBYTE || globalType == DataType.SHORT|| globalType == DataType.BYTE || globalType == DataType.BOOL) {
int anElement = element.intValue();
put(i, anElement);
} else if (globalType == DataType.LONG || type == DataType.LONG || globalType == DataType.UINT32 || globalType == DataType.UINT64) {
long anElement = element.longValue();
put(i, anElement);
} else if (globalType == DataType.FLOAT || globalType == DataType.HALF || globalType == DataType.BFLOAT16) {
float anElement = element.floatValue();
put(i, anElement);
} else if (globalType == DataType.DOUBLE) {
double anElement = element.doubleValue();
put(i, anElement);
} else {
throw new IllegalStateException("Unknown type: " + globalType);
}
}
@Override
public void put(long i, float element) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
switch (dataType()) {
case BOOL:
((BooleanIndexer) indexer).put(i, element == 0.0 ? false : true);
break;
case BYTE:
((ByteIndexer) indexer).put(i, (byte) element);
break;
case UBYTE:
((UByteIndexer) indexer).put(i, (int) element);
break;
case UINT16:
((UShortIndexer) indexer).put(i, (int)element);
break;
case SHORT:
((ShortIndexer) indexer).put(i, (short) element);
break;
case UINT32:
((UIntIndexer) indexer).put(i, (long)element);
break;
case INT:
((IntIndexer) indexer).put(i, (int) element);
break;
case UINT64:
case LONG:
((LongIndexer) indexer).put(i, (long) element);
break;
case BFLOAT16:
((Bfloat16Indexer) indexer).put(i, element);
break;
case HALF:
((HalfIndexer) indexer).put(i, element);
break;
case FLOAT:
((FloatIndexer) indexer).put(i, element);
break;
case DOUBLE:
((DoubleIndexer) indexer).put(i, element);
break;
default:
throw new IllegalStateException("Unsupported type: " + dataType());
}
}
@Override
public void put(long i, double element) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
switch (dataType()) {
case BOOL:
((BooleanIndexer) indexer).put(i, element > 0.0);
break;
case BYTE:
((ByteIndexer) indexer).put(i, (byte) element);
break;
case UBYTE:
((UByteIndexer) indexer).put(i, (short) element);
break;
case UINT16:
((UShortIndexer) indexer).put(i, (int) element);
break;
case SHORT:
((ShortIndexer) indexer).put(i, (short) element);
break;
case UINT32:
((UIntIndexer) indexer).put(i, (long)element);
break;
case INT:
((IntIndexer) indexer).put(i, (int) element);
break;
case UINT64:
case LONG:
((LongIndexer) indexer).put(i, (long) element);
break;
case BFLOAT16:
((Bfloat16Indexer) indexer).put(i, (float) element);
break;
case HALF:
((HalfIndexer) indexer).put(i, (float) element);
break;
case FLOAT:
((FloatIndexer) indexer).put(i, (float) element);
break;
case DOUBLE:
((DoubleIndexer) indexer).put(i, element);
break;
default:
throw new UnsupportedOperationException("Unsupported data type: " + dataType());
}
}
@Override
public void put(long i, int element) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
switch (dataType()) {
case BOOL:
((BooleanIndexer) indexer).put(i, element == 0 ? false : true);
break;
case BYTE:
((ByteIndexer) indexer).put(i, (byte) element);
break;
case UBYTE:
((UByteIndexer) indexer).put(i, element);
break;
case UINT16:
((UShortIndexer) indexer).put(i, element);
break;
case SHORT:
((ShortIndexer) indexer).put(i, (short) element);
break;
case UINT32:
((UIntIndexer) indexer).put(i, element);
break;
case INT:
((IntIndexer) indexer).put(i, element);
break;
case UINT64: //Fall through
case LONG:
((LongIndexer) indexer).put(i, element);
break;
case BFLOAT16:
((Bfloat16Indexer) indexer).put(i, element);
break;
case HALF:
((HalfIndexer) indexer).put(i, element);
break;
case FLOAT:
((FloatIndexer) indexer).put(i, element);
break;
case DOUBLE:
((DoubleIndexer) indexer).put(i, element);
break;
default:
throw new UnsupportedOperationException("Unsupported data type: " + dataType());
}
}
@Override
public void put(long i, boolean element) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
switch (dataType()) {
case BOOL:
((BooleanIndexer) indexer).put(i, element);
break;
case BYTE:
((ByteIndexer) indexer).put(i, element ? (byte)1 : (byte) 0);
break;
case UBYTE:
((UByteIndexer) indexer).put(i, element ? (byte)1 : (byte) 0);
break;
case UINT16:
((UShortIndexer) indexer).put(i, element ? 1 : 0);
break;
case SHORT:
((ShortIndexer) indexer).put(i, element ? (short) 1 : (short) 0);
break;
case UINT32:
((UIntIndexer) indexer).put(i, element ? 1 : 0);
break;
case INT:
((IntIndexer) indexer).put(i, element ? 1 : 0);
break;
case UINT64:
case LONG:
((LongIndexer) indexer).put(i, element ? 1 : 0);
break;
case BFLOAT16:
((Bfloat16Indexer) indexer).put(i, element ? 1.0f : 0.0f);
break;
case HALF:
((HalfIndexer) indexer).put(i, element ? 1.0f : 0.0f);
break;
case FLOAT:
((FloatIndexer) indexer).put(i, element ? 1.0f : 0.0f);
break;
case DOUBLE:
((DoubleIndexer) indexer).put(i, element ? 1.0 : 0.0);
break;
default:
throw new UnsupportedOperationException("Unsupported data type: " + dataType());
}
}
@Override
public void put(long i, long element) {
if (released)
throw new IllegalStateException("You can't use DataBuffer once it was released");
switch (dataType()) {
case BOOL:
((BooleanIndexer) indexer).put(i, element == 0 ? false : true);
break;
case BYTE:
((ByteIndexer) indexer).put(i, (byte) element);
break;
case UBYTE:
((UByteIndexer) indexer).put(i, (short) element);
break;
case UINT16:
((UShortIndexer) indexer).put(i, (int) element);
break;
case SHORT:
((ShortIndexer) indexer).put(i, (short) element);
break;
case UINT32:
((UIntIndexer) indexer).put(i, element);
break;
case INT:
((IntIndexer) indexer).put(i, (int) element);
break;
case UINT64:
case LONG:
((LongIndexer) indexer).put(i, element);
break;
case BFLOAT16:
((Bfloat16Indexer) indexer).put(i, (float) element);
break;
case HALF:
((HalfIndexer) indexer).put(i, (float) element);
break;
case FLOAT:
((FloatIndexer) indexer).put(i, (float) element);
break;
case DOUBLE:
((DoubleIndexer) indexer).put(i, (double) element);
break;
default:
throw new UnsupportedOperationException("Unsupported data type: " + dataType());
}
}
@Override
@Deprecated
public boolean dirty() {
return false;
}
@Override
public boolean sameUnderlyingData(DataBuffer buffer) {
return pointer() == buffer.pointer();
}
protected ByteBuffer wrappedBuffer() {
return pointer().asByteBuffer();
}
@Override
public IntBuffer asNioInt() {
if (offset() >= Integer.MAX_VALUE)
throw new IllegalStateException("Index out of bounds " + offset());
if (offset() == 0) {
return wrappedBuffer().asIntBuffer();
} else
return (IntBuffer) wrappedBuffer().asIntBuffer().position((int) offset());
}
@Override
public LongBuffer asNioLong() {
if (offset() >= Integer.MAX_VALUE)
throw new IllegalStateException("Index out of bounds " + offset());
if (offset() == 0) {
return wrappedBuffer().asLongBuffer();
} else
return (LongBuffer) wrappedBuffer().asLongBuffer().position((int) offset());
}
@Override
public DoubleBuffer asNioDouble() {
if (offset() >= Integer.MAX_VALUE)
throw new IllegalStateException("Index out of bounds " + offset());
if (offset() == 0) {
return wrappedBuffer().asDoubleBuffer();
} else {
return (DoubleBuffer) wrappedBuffer().asDoubleBuffer().position((int) (offset()));
}
}
@Override
public FloatBuffer asNioFloat() {
if (offset() >= Integer.MAX_VALUE)
throw new IllegalStateException("Index out of bounds " + offset());
if (offset() == 0) {
return wrappedBuffer().asFloatBuffer();
} else {
return (FloatBuffer) wrappedBuffer().asFloatBuffer().position((int) (offset()));
}
}
@Override
public ByteBuffer asNio() {
return wrappedBuffer();
}
@Override
public void assign(Number value, long offset) {
//note here that the final put will take care of the offset
for (long i = offset; i < length(); i++)
put(i, value.doubleValue());
}
@Override
public void write(OutputStream dos) {
if (dos instanceof DataOutputStream) {
try {
write((DataOutputStream) dos);
} catch (IOException e) {
throw new IllegalStateException("IO Exception writing buffer", e);
}
} else {
DataOutputStream dos2 = new DataOutputStream(dos);
try {
write(dos2);
} catch (IOException e) {
throw new IllegalStateException("IO Exception writing buffer", e);
}
}
}
@Override
public void read(InputStream is, AllocationMode allocationMode, long length, DataType dataType) {
if (is instanceof DataInputStream) {
read((DataInputStream) is, allocationMode, length, dataType);
}
else {
DataInputStream dis2 = new DataInputStream(is);
read(dis2, allocationMode, length, dataType);
}
}
@Override
public void flush() {
}
@Override
public void assign(long[] offsets, long[] strides, long n, DataBuffer... buffers) {
if (offsets.length != strides.length || strides.length != buffers.length)
throw new IllegalArgumentException(
"Unable to assign buffers, please specify equal lengths strides, offsets, and buffers");
int count = 0;
for (int i = 0; i < buffers.length; i++) {
//note here that the final put will take care of the offset
for (long j = offsets[i]; j < buffers[i].length(); j += strides[i]) {
put(count++, buffers[i].getDouble(j));
}
}
if (count != n)
throw new IllegalArgumentException("Strides and offsets didn't match up to length " + n);
}
@Override
public void assign(DataBuffer... buffers) {
long[] offsets = new long[buffers.length];
long[] strides = new long[buffers.length];
for (int i = 0; i < strides.length; i++)
strides[i] = 1;
assign(offsets, strides, buffers);
}
@Override
public void destroy() {
}
/**
* The data opType of the buffer
*
* @return the data opType of the buffer
*/
@Override
public DataType dataType() {
return type;
}
@Override
public boolean equals(Object o) {
// FIXME: this is BAD. it takes too long to work, and it breaks general equals contract
if (o instanceof DataBuffer) {
DataBuffer d = (DataBuffer) o;
if (d.length() != length())
return false;
for (int i = 0; i < length(); i++) {
double eps = Math.abs(getDouble(i) - d.getDouble(i));
if (eps > 1e-12)
return false;
}
}
return true;
}
private void readObject(ObjectInputStream s) {
doReadObject(s);
}
private void writeObject(ObjectOutputStream out) throws IOException {
out.defaultWriteObject();
write(out);
}
protected void doReadObject(ObjectInputStream s) {
try {
s.defaultReadObject();
val header = BaseDataBuffer.readHeader(s);
read(s, header.getLeft(), header.getMiddle(), header.getRight());
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static Triple readHeader(@NonNull InputStream is) {
try {
DataInputStream dis = is instanceof DataInputStream ? (DataInputStream) is : new DataInputStream(is);
val alloc = AllocationMode.valueOf(dis.readUTF());
long length = 0;
if (alloc.ordinal() < 3) {
length = dis.readInt();
} else {
length = dis.readLong();
}
val type = DataType.valueOf(dis.readUTF());
return Triple.tripleOf(alloc, length, type);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
public void read(DataInputStream s, @NonNull AllocationMode allocMode, long len, @NonNull DataType dtype) {
try {
//referencing = Collections.synchronizedSet(new HashSet());
val savedMode = allocMode;
this.allocationMode = AllocationMode.MIXED_DATA_TYPES;
type = dtype;
length = len;
// old AllocationMode values are: DIRECT, HEAP, JAVACPP. Just using legacy here
if (savedMode.ordinal() < 3) {
//Do an implicit conversion: keep current buffer data type unchanged, and convert values from source type
length = len;
DataType sourceType = dtype;
pointerIndexerByCurrentType(type); //also updates indexer based on newly set length
if (sourceType != DataType.COMPRESSED) {
DataType thisType = dataType();
readContent(s, sourceType, thisType);
}
// we should switch types here
//wrappedBuffer = pointer().asByteBuffer();
} else if (savedMode.equals(AllocationMode.LONG_SHAPE)) {
length = len;
val currentType = dtype;
type = currentType;
if (currentType == DataType.LONG)
elementSize = 8;
else if (currentType == DataType.DOUBLE && currentType != DataType.INT)
elementSize = 8;
else if (currentType == DataType.FLOAT || currentType == DataType.INT)
elementSize = 4;
else if (currentType == DataType.HALF && currentType != DataType.INT)
elementSize = 2;
pointerIndexerByCurrentType(currentType);
if (currentType != DataType.COMPRESSED)
readContent(s, currentType, currentType);
} else if (allocationMode.equals(AllocationMode.MIXED_DATA_TYPES)) {
switch (type) {
case UINT64:
case LONG:
case DOUBLE:
elementSize = 8;
break;
case UINT32:
case FLOAT:
case INT:
elementSize = 4;
break;
case UINT16:
case SHORT:
case HALF:
case BFLOAT16:
elementSize = 2;
break;
case BOOL:
case BYTE:
case UBYTE:
case UTF8:
elementSize = 1;
break;
default:
throw new UnsupportedOperationException();
}
pointerIndexerByCurrentType(type);
if (type != DataType.COMPRESSED)
readContent(s, type, type);
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
protected void readContent(DataInputStream s, DataType sourceType, DataType thisType) {
try {
//Use AtomicX as a mutable Number class to reduce garbage vs. auto boxing to Double/Float etc classes
if (sourceType == DataType.DOUBLE) {
AtomicDouble aDbl = new AtomicDouble();
for (long i = 0; i < length(); i++) {
aDbl.set(s.readDouble());
putByDestinationType(i, aDbl, thisType);
}
} else if (sourceType == DataType.FLOAT) {
//TODO no AtomicFloat to use here?
for (long i = 0; i < length(); i++) {
putByDestinationType(i, s.readFloat(), thisType);
}
} else if (sourceType == DataType.COMPRESSED) {
String compressionAlgorithm = s.readUTF();
long compressedLength = s.readLong();
long originalLength = s.readLong();
long numberOfElements = s.readLong();
pointer = new BytePointer(compressedLength);
type = DataType.COMPRESSED;
val tp = (BytePointer) pointer;
val ti = ByteIndexer.create(tp);
for (long i = 0; i < compressedLength; i++) {
ti.put(i, s.readByte());
}
} else if (sourceType == DataType.HALF) {
AtomicInteger aInt = new AtomicInteger();
for (long i = 0; i < length(); i++) {
aInt.set(s.readShort());
putByDestinationType(i, HalfIndexer.toFloat(aInt.get()), thisType);
}
} else if (sourceType == DataType.BFLOAT16) {
AtomicInteger aInt = new AtomicInteger();
for (long i = 0; i < length(); i++) {
aInt.set(s.readShort());
putByDestinationType(i, Bfloat16Indexer.toFloat(aInt.get()), thisType);
}
} else if (sourceType == DataType.UINT64) {
AtomicLong aLong = new AtomicLong();
for (long i = 0; i < length(); i++) {
aLong.set(s.readLong());
putByDestinationType(i, aLong, thisType);
}
} else if (sourceType == DataType.LONG) {
AtomicLong aLong = new AtomicLong();
for (long i = 0; i < length(); i++) {
aLong.set(s.readLong());
putByDestinationType(i, aLong, thisType);
}
} else if (sourceType == DataType.UINT32) {
AtomicLong aLong = new AtomicLong();
for (long i = 0; i < length(); i++) {
aLong.set(s.readInt());
putByDestinationType(i, aLong, thisType);
}
} else if (sourceType == DataType.INT ){
AtomicInteger aInt = new AtomicInteger();
for (long i = 0; i < length(); i++) {
aInt.set(s.readInt());
putByDestinationType(i, aInt, thisType);
}
} else if (sourceType == DataType.UINT16 ){
AtomicInteger aInt = new AtomicInteger();
for (long i = 0; i < length(); i++) {
aInt.set(s.readShort());
putByDestinationType(i, aInt, thisType);
}
} else if (sourceType == DataType.SHORT ){
AtomicInteger aInt = new AtomicInteger();
for (long i = 0; i < length(); i++) {
aInt.set(s.readShort());
putByDestinationType(i, aInt, thisType);
}
} else if (sourceType == DataType.UBYTE ){
AtomicInteger aInt = new AtomicInteger();
for (long i = 0; i < length(); i++) {
aInt.set(s.readByte());
putByDestinationType(i, aInt, thisType);
}
} else if (sourceType == DataType.BYTE ){
AtomicInteger aInt = new AtomicInteger();
for (long i = 0; i < length(); i++) {
aInt.set(s.readByte());
putByDestinationType(i, aInt, thisType);
}
} else if (sourceType == DataType.BOOL ){
AtomicInteger aInt = new AtomicInteger();
for (long i = 0; i < length(); i++) {
aInt.set(s.readByte());
putByDestinationType(i, aInt, thisType);
}
} else {
throw new UnsupportedOperationException("Cannot read type: " + sourceType + " to " + thisType);
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
protected abstract double getDoubleUnsynced(long index);
protected abstract float getFloatUnsynced(long index);
protected abstract long getLongUnsynced(long index);
protected abstract int getIntUnsynced(long index);
@Override
public void write(DataOutputStream out) throws IOException {
out.writeUTF(allocationMode.name());
out.writeLong(length());
out.writeUTF(dataType().name());
switch (dataType()) {
case DOUBLE:
for (long i = 0; i < length(); i++)
out.writeDouble(getDoubleUnsynced(i));
break;
case UINT64:
case LONG:
for (long i = 0; i < length(); i++)
out.writeLong(getLongUnsynced(i));
break;
case UINT32:
case INT:
for (long i = 0; i < length(); i++)
out.writeInt(getIntUnsynced(i));
break;
case UINT16:
case SHORT:
for (long i = 0; i < length(); i++)
out.writeShort((short) getIntUnsynced(i));
break;
case UBYTE:
case BYTE:
for (long i = 0; i < length(); i++)
out.writeByte((byte) getIntUnsynced(i));
break;
case BOOL:
for (long i = 0; i < length(); i++)
out.writeByte(getIntUnsynced(i) == 0 ? (byte) 0 : (byte) 1);
break;
case BFLOAT16:
for (long i = 0; i < length(); i++)
out.writeShort((short) Bfloat16Indexer.fromFloat(getFloatUnsynced(i)));
break;
case HALF:
for (long i = 0; i < length(); i++)
out.writeShort((short) HalfIndexer.fromFloat(getFloatUnsynced(i)));
break;
case FLOAT:
for (long i = 0; i < length(); i++)
out.writeFloat(getFloatUnsynced(i));
break;
}
}
public float toFloat(int hbits) {
int mant = hbits & 0x03ff; // 10 bits mantissa
int exp = hbits & 0x7c00; // 5 bits exponent
if (exp == 0x7c00) // NaN/Inf
exp = 0x3fc00; // -> NaN/Inf
else if (exp != 0) // normalized value
{
exp += 0x1c000; // exp - 15 + 127
// "smooth transition" is nonstandard behavior
// if( mant == 0 && exp > 0x1c400 ) // smooth transition
// return Float.intBitsToFloat( ( hbits & 0x8000 ) << 16
// | exp << 13 | 0x3ff );
} else if (mant != 0) // && exp==0 -> subnormal
{
exp = 0x1c400; // make it normal
do {
mant <<= 1; // mantissa * 2
exp -= 0x400; // decrease exp by 1
} while ((mant & 0x400) == 0); // while not normal
mant &= 0x3ff; // discard subnormal bit
} // else +/-0 -> +/-0
return Float.intBitsToFloat( // combine all parts
(hbits & 0x8000) << 16 // sign << ( 31 - 15 )
| (exp | mant) << 13); // value << ( 23 - 10 )
}
@Override
public Object array() {
return null;
}
@Override
public String toString() {
StringBuilder ret = new StringBuilder();
ret.append("[");
int max;
if (TO_STRING_MAX >= 0) {
max = (int)Math.min(length(), TO_STRING_MAX);
} else {
max = (int)Math.min(length(), Integer.MAX_VALUE);
}
for (int i = 0; i < max; i++) {
switch (dataType()) {
case UBYTE:
case BYTE:
case INT:
case SHORT:
case LONG:
ret.append(getNumber(i).intValue());
break;
case BOOL:
ret.append(getNumber(i).intValue() == 0 ? " false" : " true");
break;
case UTF8:
throw new UnsupportedOperationException();
case HALF:
case FLOAT:
case DOUBLE:
default:
ret.append(getNumber(i).floatValue());
break;
}
if (i < max - 1)
ret.append(",");
}
if(max < length()){
ret.append(",<")
.append(length()-max)
.append(" more elements>");
}
ret.append("]");
return ret.toString();
}
@Override
public int hashCode() {
int result = (int) length;
//result = 31 * result + (referencing != null ? referencing.hashCode() : 0);
//result = 31 * result + (isPersist ? 1 : 0);
result = 31 * result + (allocationMode != null ? allocationMode.hashCode() : 0);
return result;
}
/**
* Returns the offset of the buffer relative to originalDataBuffer
*
* @return
*/
@Override
public long originalOffset() {
return originalOffset;
}
/**
* This method returns whether this DataBuffer is constant, or not.
* Constant buffer means that it modified only during creation time, and then it stays the same for all lifecycle. I.e. used in shape info databuffers.
*
* @return
*/
public boolean isConstant() {
return constant;
}
/**
*
* This method allows you to mark databuffer as constant.
*
* PLEASE NOTE: DO NOT USE THIS METHOD, UNLESS YOU'RE 100% SURE WHAT YOU DO
*
* @param reallyConstant
*/
public void setConstant(boolean reallyConstant) {
this.constant = reallyConstant;
}
/**
* This method returns True, if this DataBuffer is attached to some workspace. False otherwise
*
* @return
*/
@Override
public boolean isAttached() {
return attached;
}
/**
* This method checks, if given attached INDArray is still in scope of its parent Workspace
*
* PLEASE NOTE: if this INDArray isn't attached to any Workspace, this method will return true
*
* @return
*/
@Override
public boolean isInScope() {
if (!isAttached())
return true;
return parentWorkspace.isScopeActive();
}
@Override
public MemoryWorkspace getParentWorkspace() {
if(parentWorkspace != null){
return parentWorkspace;
}
if(wrappedDataBuffer != null && wrappedDataBuffer.isAttached() && wrappedDataBuffer.getParentWorkspace() != null){
return wrappedDataBuffer.getParentWorkspace();
}
if(originalBuffer != null && originalBuffer.isAttached() && originalBuffer.getParentWorkspace() != null){
return originalBuffer.getParentWorkspace();
}
return null;
}
public abstract DataBuffer reallocate(long length);
/**
* @return the capacity of the buffer
* */
@Override
public long capacity() {
return pointer().capacity();
}
@Override
public boolean closeable() {
if (released || isAttached() || isConstant())
return false;
if (wrappedDataBuffer != null && wrappedDataBuffer != this)
return false;
return true;
}
protected void markReleased() {
this.released = true;
/*
for (val r:references) {
val b = r.get();
if (b != null)
b.markReleased();
}
*/
}
@Override
public void close() {
if (!closeable())
throw new IllegalStateException("Can't release this data buffer");
// notifying other databuffers that their underlying
/*
for (val r:references) {
val b = r.get();
if (b != null)
b.markReleased();
}
*/
release();
}
protected void release() {
this.released = true;
this.indexer = null;
this.pointer = null;
}
@Override
public long platformAddress() {
return address();
}
@Override
public boolean wasClosed() {
if (wrappedDataBuffer != null && wrappedDataBuffer != this)
return wrappedDataBuffer.wasClosed();
return released;
}
/**
* This method synchronizes host memory
*/
public abstract void syncToPrimary();
/**
* This method synchronizes device memory
*/
public abstract void syncToSpecial();
}