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com.firenio.common.Unsafe Maven / Gradle / Ivy
/*
* Copyright 2015 The FireNio Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
package com.firenio.common;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.nio.Buffer;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.PrivilegedExceptionAction;
import com.firenio.Options;
/**
* @author wangkai
*/
@SuppressWarnings("restriction")
public class Unsafe {
public static final long ARRAY_BASE_OFFSET;
public static final long BUFFER_ADDRESS_OFFSET;
public static final boolean IS_LINUX = isLinux();
public static final boolean IS_ANDROID = isAndroid();
public static final boolean UNSAFE_AVAILABLE = isUnsafeAvailable();
public static final boolean UNSAFE_BUF_AVAILABLE;
public static final boolean DIRECT_BUFFER_AVAILABLE;
// This number limits the number of bytes to copy per call to Unsafe's
// copyMemory method. A writeIndex is imposed to allow for safe point polling
// during a large copy
private static final long UNSAFE_COPY_THRESHOLD = 1024L * 1024L;
private static final ByteOrder nativeByteOrder = ByteOrder.nativeOrder();
private static final boolean RAW_DIRECT_AVAILABLE;
private static final InternalUnsafe UNSAFE;
private static final int JAVA_VERSION = majorJavaVersion();
private static final Constructor DIRECT_BUFFER_CONSTRUCTOR;
//jdk.internal.misc.Unsafe
//jdk.internal.ref.Cleaner
static {
UNSAFE = getUnsafe();
if (UNSAFE_AVAILABLE) {
UNSAFE_BUF_AVAILABLE = Options.isEnableUnsafeBuf();
BUFFER_ADDRESS_OFFSET = fieldOffset(Util.getDeclaredField(Buffer.class, "address"));
DIRECT_BUFFER_AVAILABLE = BUFFER_ADDRESS_OFFSET != -1;
ARRAY_BASE_OFFSET = UNSAFE.arrayBaseOffset(byte[].class);
DIRECT_BUFFER_CONSTRUCTOR = getDirectBufferConstructor();
RAW_DIRECT_AVAILABLE = DIRECT_BUFFER_CONSTRUCTOR != null;
} else {
if (Options.isEnableUnsafeBuf()) {
throw new Error("UnsafeBuf enabled but no unsafe available");
}
UNSAFE_BUF_AVAILABLE = false;
BUFFER_ADDRESS_OFFSET = -1;
DIRECT_BUFFER_AVAILABLE = false;
ARRAY_BASE_OFFSET = -1;
DIRECT_BUFFER_CONSTRUCTOR = null;
RAW_DIRECT_AVAILABLE = false;
}
}
private Unsafe() {}
private static Constructor getDirectBufferConstructor() {
Constructor directBufferConstructor = null;
final ByteBuffer direct = ByteBuffer.allocateDirect(1);
long address = -1;
try {
final Object res = AccessController.doPrivileged(new PrivilegedAction() {
@Override
public Object run() {
try {
final Constructor constructor = direct.getClass().getDeclaredConstructor(long.class, int.class);
Throwable cause = Util.trySetAccessible(constructor);
if (cause != null) {
return cause;
}
return constructor;
} catch (Throwable e) {
return e;
}
}
});
if (res instanceof Constructor) {
address = allocate(1);
try {
((Constructor) res).newInstance(address, 1);
directBufferConstructor = (Constructor) res;
} catch (Throwable e) {
return null;
}
} else {
return null;
}
} finally {
if (address != -1) {
free(address);
}
}
return directBufferConstructor;
}
private static boolean isAndroid() {
return "Dalvik".equalsIgnoreCase(System.getProperty("java.vm.name"));
}
private static boolean isLinux() {
return Util.getStringProperty("os.name", "").toLowerCase().startsWith("lin");
}
private static boolean isUnsafeAvailable() {
return !IS_ANDROID && Options.isEnableUnsafe();
}
private static InternalUnsafe getUnsafe() {
if (UNSAFE_AVAILABLE) {
// if (javaVersion() > 8) {
// return new Jdk8UpUnsafe();
// } else {
// return new Jdk8AndLowUnsafe();
// }
return new Jdk8AndLowUnsafe();
} else {
return new NoUnsafe();
}
}
public static long address(ByteBuffer buffer) {
return UNSAFE.getLong(buffer, BUFFER_ADDRESS_OFFSET);
}
public static long allocate(long length) {
return UNSAFE.allocateMemory(length);
}
public static Object allocateInstance(Class clazz) {
try {
return UNSAFE.allocateInstance(clazz);
} catch (InstantiationException e) {
throw new RuntimeException(e);
}
}
public static boolean compareAndSwapInt(Object o, long offset, int expected, int val) {
return UNSAFE.compareAndSwapInt(o, offset, expected, val);
}
public static boolean compareAndSwapLong(Object o, long offset, int expected, long val) {
return UNSAFE.compareAndSwapLong(o, offset, expected, val);
}
public static boolean compareAndSwapObject(Object o, long offset, Object expected, Object val) {
return UNSAFE.compareAndSwapObject(o, offset, expected, val);
}
/**
* Copy from given source array to destination address.
*
* @param src source array
* @param srcPos offset within source array of the first element to native_read
* @param dstAddr destination address
* @param length number of bytes to copy
*/
public static void copyFromArray(byte[] src, long srcPos, long dstAddr, long length) {
long offset = ARRAY_BASE_OFFSET + srcPos;
while (length > 0) {
long size = (length > UNSAFE_COPY_THRESHOLD) ? UNSAFE_COPY_THRESHOLD : length;
UNSAFE.copyMemory(src, offset, null, dstAddr, size);
length -= size;
offset += size;
dstAddr += size;
}
}
public static void copyMemory(ByteBuffer buf, long targetAddress, long length) {
if (buf.isDirect()) {
UNSAFE.copyMemory(address(buf) + buf.position(), targetAddress, length);
} else {
copyFromArray(buf.array(), buf.position(), targetAddress, length);
}
}
public static void copyMemory(long srcAddress, long targetAddress, long length) {
UNSAFE.copyMemory(srcAddress, targetAddress, length);
}
public static void copyMemory(Object src, long srcOffset, Object target, long targetOffset, long length) {
UNSAFE.copyMemory(src, srcOffset, target, targetOffset, length);
}
/**
* Copy from source address into given destination array.
*
* @param srcAddr source address
* @param dst destination array
* @param dstPos offset within destination array of the first element to write
* @param length number of bytes to copy
*/
public static void copyToArray(long srcAddr, byte[] dst, long dstPos, long length) {
long offset = ARRAY_BASE_OFFSET + dstPos;
while (length > 0) {
long size = (length > UNSAFE_COPY_THRESHOLD) ? UNSAFE_COPY_THRESHOLD : length;
UNSAFE.copyMemory(null, srcAddr, dst, offset, size);
length -= size;
srcAddr += size;
offset += size;
}
}
private static long fieldOffset(Field field) {
return field == null || UNSAFE == null ? -1 : UNSAFE.objectFieldOffset(field);
}
public static void free(long address) {
UNSAFE.freeMemory(address);
}
public static long getArrayBaseOffset() {
return ARRAY_BASE_OFFSET;
}
public static boolean getBoolean(Object target, long offset) {
return UNSAFE.getBoolean(target, offset);
}
public static byte getByte(long address) {
return UNSAFE.getByte(address);
}
public static byte getByte(Object target, long offset) {
return UNSAFE.getByte(target, offset);
}
public static double getDouble(Object target, long offset) {
return UNSAFE.getDouble(target, offset);
}
public static float getFloat(Object target, long offset) {
return UNSAFE.getFloat(target, offset);
}
public static int getInt(long address) {
return UNSAFE.getInt(address);
}
public static int getInt(Object target, long offset) {
return UNSAFE.getInt(target, offset);
}
public static long getLong(long address) {
return UNSAFE.getLong(address);
}
public static long getLong(Object target, long offset) {
return UNSAFE.getLong(target, offset);
}
public static Object getObject(Object target, long offset) {
return UNSAFE.getObject(target, offset);
}
public static short getShort(long address) {
return UNSAFE.getShort(address);
}
public static short getShort(Object target, long offset) {
return UNSAFE.getShort(target, offset);
}
public static ByteOrder nativeByteOrder() {
return nativeByteOrder;
}
public static boolean isBigOrder() {
return nativeByteOrder() == ByteOrder.BIG_ENDIAN;
}
public static boolean isLittleOrder() {
return nativeByteOrder() == ByteOrder.LITTLE_ENDIAN;
}
public static long objectFieldOffset(Field field) {
return UNSAFE.objectFieldOffset(field);
}
public static void putBoolean(Object target, long offset, boolean value) {
UNSAFE.putBoolean(target, offset, value);
}
public static void putByte(long address, byte value) {
UNSAFE.putByte(address, value);
}
public static void putByte(Object target, long offset, byte value) {
UNSAFE.putByte(target, offset, value);
}
public static void putDouble(Object target, long offset, double value) {
UNSAFE.putDouble(target, offset, value);
}
public static void putFloat(Object target, long offset, float value) {
UNSAFE.putFloat(target, offset, value);
}
public static void putInt(long address, int value) {
UNSAFE.putInt(address, value);
}
public static void putInt(Object target, long offset, int value) {
UNSAFE.putInt(target, offset, value);
}
public static void putLong(long address, long value) {
UNSAFE.putLong(address, value);
}
public static void putLong(Object target, long offset, long value) {
UNSAFE.putLong(target, offset, value);
}
public static void putObject(Object target, long offset, Object value) {
UNSAFE.putObject(target, offset, value);
}
public static void putShort(long address, short value) {
UNSAFE.putShort(address, value);
}
public static void putShort(Object target, long offset, short value) {
UNSAFE.putShort(target, offset, value);
}
public static void setMemory(long address, long numBytes, byte value) {
UNSAFE.setMemory(address, numBytes, value);
}
public static int javaVersion() {
return JAVA_VERSION;
}
public static ByteBuffer allocateDirectByteBuffer(int cap) {
if (RAW_DIRECT_AVAILABLE) {
long address = allocate(cap);
if (address == -1) {
throw new RuntimeException("no enough space(direct): " + cap);
}
try {
return (ByteBuffer) DIRECT_BUFFER_CONSTRUCTOR.newInstance(address, cap);
} catch (Throwable e) {
free(address);
throw new Error(e);
}
} else {
return ByteBuffer.allocateDirect(cap);
}
}
public static void freeByteBuffer(ByteBuffer buffer) {
if (buffer.isDirect()) {
if (RAW_DIRECT_AVAILABLE) {
free(address(buffer));
} else {
boolean free = false;
// if (javaVersion() > 8) {
// sun.nio.ch.DirectBuffer b = (sun.nio.ch.DirectBuffer) buffer;
// jdk.internal.ref.Cleaner c = b.cleaner();
// if (c != null) {
// c.clean();
// free = true;
// }
// } else {
if (((sun.nio.ch.DirectBuffer) buffer).cleaner() != null) {
((sun.nio.ch.DirectBuffer) buffer).cleaner().clean();
free = true;
}
// }
if (!free) {
free(address(buffer));
}
}
}
}
private static int majorJavaVersion() {
final String javaSpecVersion = Util.getStringProperty("java.specification.version", "1.6");
final String[] components = javaSpecVersion.split("\\.");
final int[] version = new int[components.length];
for (int i = 0; i < components.length; i++) {
version[i] = Integer.parseInt(components[i]);
}
if (version[0] == 1) {
assert version[1] >= 6;
return version[1];
} else {
return version[0];
}
}
interface InternalUnsafe {
boolean compareAndSwapInt(Object o, long offset, int expected, int val);
boolean compareAndSwapLong(Object o, long offset, int expected, long val);
boolean compareAndSwapObject(Object o, long offset, Object expected, Object val);
void copyMemory(ByteBuffer buf, long targetAddress, long length);
void copyMemory(long srcAddress, long targetAddress, long length);
void copyMemory(Object src, long srcOffset, Object target, long targetOffset, long length);
long fieldOffset(Field field);
boolean getBoolean(Object target, long offset);
byte getByte(long address);
byte getByte(Object target, long offset);
double getDouble(Object target, long offset);
float getFloat(Object target, long offset);
int getInt(long address);
int getInt(Object target, long offset);
long getLong(long address);
long getLong(Object target, long offset);
Object getObject(Object target, long offset);
short getShort(long address);
short getShort(Object target, long offset);
long objectFieldOffset(Field field);
void putBoolean(Object target, long offset, boolean value);
void putByte(long address, byte value);
void putByte(Object target, long offset, byte value);
void putDouble(Object target, long offset, double value);
void putFloat(Object target, long offset, float value);
void putInt(long address, int value);
void putInt(Object target, long offset, int value);
void putLong(long address, long value);
void putLong(Object target, long offset, long value);
void putObject(Object target, long offset, Object value);
void putShort(long address, short value);
void putShort(Object target, long offset, short value);
void setMemory(long address, long numBytes, byte value);
long arrayBaseOffset(Class clazz);
long allocateMemory(long length);
Object allocateInstance(Class clazz) throws InstantiationException;
void freeMemory(long address);
}
// static final class Jdk8UpUnsafe implements InternalUnsafe {
//
// private jdk.internal.misc.Unsafe UNSAFE;
//
// Jdk8UpUnsafe() {
// UNSAFE = getUnsafe();
// }
//
// public boolean compareAndSwapInt(Object o, long offset, int expected, int val) {
// return UNSAFE.compareAndSetInt(o, offset, expected, val);
// }
//
// public boolean compareAndSwapLong(Object o, long offset, int expected, long val) {
// return UNSAFE.compareAndSetLong(o, offset, expected, val);
// }
//
// public boolean compareAndSwapObject(Object o, long offset, Object expected, Object val) {
// return UNSAFE.compareAndSetObject(o, offset, expected, val);
// }
//
// public void copyMemory(ByteBuffer buf, long targetAddress, long length) {
// UNSAFE.copyMemory(address(buf) + buf.readIndex(), targetAddress, length);
// }
//
// public void copyMemory(long srcAddress, long targetAddress, long length) {
// UNSAFE.copyMemory(srcAddress, targetAddress, length);
// }
//
// public void copyMemory(Object src, long srcOffset, Object target, long targetOffset, long length) {
// UNSAFE.copyMemory(src, srcOffset, target, targetOffset, length);
// }
//
// public long fieldOffset(Field field) {
// return UNSAFE.objectFieldOffset(field);
// }
//
// public void free(long address) {
// UNSAFE.freeMemory(address);
// }
//
// public boolean getBoolean(Object target, long offset) {
// return UNSAFE.getBoolean(target, offset);
// }
//
// public byte readByte(long address) {
// return UNSAFE.readByte(address);
// }
//
// public byte readByte(Object target, long offset) {
// return UNSAFE.readByte(target, offset);
// }
//
// public double readDouble(Object target, long offset) {
// return UNSAFE.readDouble(target, offset);
// }
//
// public float readFloat(Object target, long offset) {
// return UNSAFE.readFloat(target, offset);
// }
//
// public int readInt(long address) {
// return UNSAFE.readInt(address);
// }
//
// public int readInt(Object target, long offset) {
// return UNSAFE.readInt(target, offset);
// }
//
// public long readLong(long address) {
// return UNSAFE.readLong(address);
// }
//
// public long readLong(Object target, long offset) {
// return UNSAFE.readLong(target, offset);
// }
//
// public Object getObject(Object target, long offset) {
// return UNSAFE.getObject(target, offset);
// }
//
// public short readShort(long address) {
// return UNSAFE.readShort(address);
// }
//
// public short readShort(Object target, long offset) {
// return UNSAFE.readShort(target, offset);
// }
//
// public long objectFieldOffset(Field field) {
// return UNSAFE.objectFieldOffset(field);
// }
//
// public void putBoolean(Object target, long offset, boolean value) {
// UNSAFE.putBoolean(target, offset, value);
// }
//
// public void writeByte(long address, byte value) {
// UNSAFE.writeByte(address, value);
// }
//
// public void writeByte(Object target, long offset, byte value) {
// UNSAFE.writeByte(target, offset, value);
// }
//
// public void setDouble(Object target, long offset, double value) {
// UNSAFE.setDouble(target, offset, value);
// }
//
// public void setFloat(Object target, long offset, float value) {
// UNSAFE.setFloat(target, offset, value);
// }
//
// public void writeInt(long address, int value) {
// UNSAFE.writeInt(address, value);
// }
//
// public void writeInt(Object target, long offset, int value) {
// UNSAFE.writeInt(target, offset, value);
// }
//
// public void setLong(long address, long value) {
// UNSAFE.setLong(address, value);
// }
//
// public void setLong(Object target, long offset, long value) {
// UNSAFE.setLong(target, offset, value);
// }
//
// public void putObject(Object target, long offset, Object value) {
// UNSAFE.putObject(target, offset, value);
// }
//
// public void writeShort(long address, short value) {
// UNSAFE.writeShort(address, value);
// }
//
// public void writeShort(Object target, long offset, short value) {
// UNSAFE.writeShort(target, offset, value);
// }
//
// public void setMemory(long address, long numBytes, byte value) {
// UNSAFE.setMemory(address, numBytes, value);
// }
//
// @Override
// public long arrayBaseOffset(Class clazz) {
// return UNSAFE.arrayBaseOffset(clazz);
// }
//
// @Override
// public long allocateMemory(long length) {
// return UNSAFE.allocateMemory(length);
// }
//
// @Override
// public Object allocateInstance(Class clazz) throws InstantiationException {
// return UNSAFE.allocateInstance(clazz);
// }
//
// @Override
// public void freeMemory(long address) {
// UNSAFE.freeMemory(address);
// }
//
// private jdk.internal.misc.Unsafe getUnsafe() {
// jdk.internal.misc.Unsafe unsafe = null;
// try {
// unsafe = AccessController.doPrivileged(new PrivilegedExceptionAction() {
// @Override
// public jdk.internal.misc.Unsafe run() throws Exception {
// Class k = jdk.internal.misc.Unsafe.class;
// for (Field f : k.getDeclaredFields()) {
// f.setAccessible(true);
// Object x = f.get(null);
// if (k.isInstance(x)) {
// return k.cast(x);
// }
// }
// // The sun.misc.Unsafe field does not exist.
// return null;
// }
// });
// } catch (Throwable e) {
// throw new Error("get unsafe failed", e);
// }
// return unsafe;
// }
//
// }
static final class Jdk8AndLowUnsafe implements InternalUnsafe {
private sun.misc.Unsafe UNSAFE;
Jdk8AndLowUnsafe() {
UNSAFE = getUnsafe();
}
@Override
public boolean compareAndSwapInt(Object o, long offset, int expected, int val) {
return UNSAFE.compareAndSwapInt(o, offset, expected, val);
}
@Override
public boolean compareAndSwapLong(Object o, long offset, int expected, long val) {
return UNSAFE.compareAndSwapLong(o, offset, expected, val);
}
@Override
public boolean compareAndSwapObject(Object o, long offset, Object expected, Object val) {
return UNSAFE.compareAndSwapObject(o, offset, expected, val);
}
@Override
public void copyMemory(ByteBuffer buf, long targetAddress, long length) {
UNSAFE.copyMemory(address(buf) + buf.position(), targetAddress, length);
}
@Override
public void copyMemory(long srcAddress, long targetAddress, long length) {
UNSAFE.copyMemory(srcAddress, targetAddress, length);
}
@Override
public void copyMemory(Object src, long srcOffset, Object target, long targetOffset, long length) {
UNSAFE.copyMemory(src, srcOffset, target, targetOffset, length);
}
@Override
public long fieldOffset(Field field) {
return UNSAFE.objectFieldOffset(field);
}
@Override
public boolean getBoolean(Object target, long offset) {
return UNSAFE.getBoolean(target, offset);
}
@Override
public byte getByte(long address) {
return UNSAFE.getByte(address);
}
@Override
public byte getByte(Object target, long offset) {
return UNSAFE.getByte(target, offset);
}
@Override
public double getDouble(Object target, long offset) {
return UNSAFE.getDouble(target, offset);
}
@Override
public float getFloat(Object target, long offset) {
return UNSAFE.getFloat(target, offset);
}
@Override
public int getInt(long address) {
return UNSAFE.getInt(address);
}
@Override
public int getInt(Object target, long offset) {
return UNSAFE.getInt(target, offset);
}
@Override
public long getLong(long address) {
return UNSAFE.getLong(address);
}
@Override
public long getLong(Object target, long offset) {
return UNSAFE.getLong(target, offset);
}
@Override
public Object getObject(Object target, long offset) {
return UNSAFE.getObject(target, offset);
}
@Override
public short getShort(long address) {
return UNSAFE.getShort(address);
}
@Override
public short getShort(Object target, long offset) {
return UNSAFE.getShort(target, offset);
}
@Override
public long objectFieldOffset(Field field) {
return UNSAFE.objectFieldOffset(field);
}
@Override
public void putBoolean(Object target, long offset, boolean value) {
UNSAFE.putBoolean(target, offset, value);
}
@Override
public void putByte(long address, byte value) {
UNSAFE.putByte(address, value);
}
@Override
public void putByte(Object target, long offset, byte value) {
UNSAFE.putByte(target, offset, value);
}
@Override
public void putDouble(Object target, long offset, double value) {
UNSAFE.putDouble(target, offset, value);
}
@Override
public void putFloat(Object target, long offset, float value) {
UNSAFE.putFloat(target, offset, value);
}
@Override
public void putInt(long address, int value) {
UNSAFE.putInt(address, value);
}
@Override
public void putInt(Object target, long offset, int value) {
UNSAFE.putInt(target, offset, value);
}
@Override
public void putLong(long address, long value) {
UNSAFE.putLong(address, value);
}
@Override
public void putLong(Object target, long offset, long value) {
UNSAFE.putLong(target, offset, value);
}
@Override
public void putObject(Object target, long offset, Object value) {
UNSAFE.putObject(target, offset, value);
}
@Override
public void putShort(long address, short value) {
UNSAFE.putShort(address, value);
}
@Override
public void putShort(Object target, long offset, short value) {
UNSAFE.putShort(target, offset, value);
}
@Override
public void setMemory(long address, long numBytes, byte value) {
UNSAFE.setMemory(address, numBytes, value);
}
@Override
public long arrayBaseOffset(Class clazz) {
return UNSAFE.arrayBaseOffset(clazz);
}
@Override
public long allocateMemory(long length) {
return UNSAFE.allocateMemory(length);
}
@Override
public Object allocateInstance(Class clazz) throws InstantiationException {
return UNSAFE.allocateInstance(clazz);
}
@Override
public void freeMemory(long address) {
UNSAFE.freeMemory(address);
}
private sun.misc.Unsafe getUnsafe() {
sun.misc.Unsafe unsafe = null;
try {
unsafe = AccessController.doPrivileged(new PrivilegedExceptionAction() {
@Override
public sun.misc.Unsafe run() throws Exception {
Class k = sun.misc.Unsafe.class;
for (Field f : k.getDeclaredFields()) {
f.setAccessible(true);
Object x = f.get(null);
if (k.isInstance(x)) {
return k.cast(x);
}
}
// The sun.misc.Unsafe field does not exist.
return null;
}
});
} catch (Throwable e) {
throw new Error("get unsafe failed", e);
}
return unsafe;
}
}
static final class NoUnsafe implements InternalUnsafe {
public boolean compareAndSwapInt(Object o, long offset, int expected, int val) {
throw new UnsupportedOperationException("unsafe not available");
}
public boolean compareAndSwapLong(Object o, long offset, int expected, long val) {
throw new UnsupportedOperationException("unsafe not available");
}
public boolean compareAndSwapObject(Object o, long offset, Object expected, Object val) {
throw new UnsupportedOperationException("unsafe not available");
}
public void copyMemory(ByteBuffer buf, long targetAddress, long length) {
throw new UnsupportedOperationException("unsafe not available");
}
public void copyMemory(long srcAddress, long targetAddress, long length) {
throw new UnsupportedOperationException("unsafe not available");
}
public void copyMemory(Object src, long srcOffset, Object target, long targetOffset, long length) {
throw new UnsupportedOperationException("unsafe not available");
}
public long fieldOffset(Field field) {
throw new UnsupportedOperationException("unsafe not available");
}
public boolean getBoolean(Object target, long offset) {
throw new UnsupportedOperationException("unsafe not available");
}
public byte getByte(long address) {
throw new UnsupportedOperationException("unsafe not available");
}
public byte getByte(Object target, long offset) {
throw new UnsupportedOperationException("unsafe not available");
}
public double getDouble(Object target, long offset) {
throw new UnsupportedOperationException("unsafe not available");
}
public float getFloat(Object target, long offset) {
throw new UnsupportedOperationException("unsafe not available");
}
public int getInt(long address) {
throw new UnsupportedOperationException("unsafe not available");
}
public int getInt(Object target, long offset) {
throw new UnsupportedOperationException("unsafe not available");
}
public long getLong(long address) {
throw new UnsupportedOperationException("unsafe not available");
}
public long getLong(Object target, long offset) {
throw new UnsupportedOperationException("unsafe not available");
}
public Object getObject(Object target, long offset) {
throw new UnsupportedOperationException("unsafe not available");
}
public short getShort(long address) {
throw new UnsupportedOperationException("unsafe not available");
}
public short getShort(Object target, long offset) {
throw new UnsupportedOperationException("unsafe not available");
}
public long objectFieldOffset(Field field) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putBoolean(Object target, long offset, boolean value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putByte(long address, byte value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putByte(Object target, long offset, byte value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putDouble(Object target, long offset, double value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putFloat(Object target, long offset, float value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putInt(long address, int value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putInt(Object target, long offset, int value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putLong(long address, long value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putLong(Object target, long offset, long value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putObject(Object target, long offset, Object value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putShort(long address, short value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void putShort(Object target, long offset, short value) {
throw new UnsupportedOperationException("unsafe not available");
}
public void setMemory(long address, long numBytes, byte value) {
throw new UnsupportedOperationException("unsafe not available");
}
public long arrayBaseOffset(Class clazz) {
throw new UnsupportedOperationException("unsafe not available");
}
public long allocateMemory(long length) {
throw new UnsupportedOperationException("unsafe not available");
}
public Object allocateInstance(Class clazz) throws InstantiationException {
throw new UnsupportedOperationException("unsafe not available");
}
public void freeMemory(long address) {
throw new UnsupportedOperationException("unsafe not available");
}
}
}
