/*
* Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package jdk.internal.vm.compiler.word;
Lowest-level memory access of native C memory.
Do not use these methods to access Java objects. These methods access the raw memory without any
null checks, read- or write barriers. Even when the VM uses compressed pointers, then readObject
and writeObject methods access uncompressed pointers.
Since: 19.0
/**
* Lowest-level memory access of native C memory.
* <p>
* Do not use these methods to access Java objects. These methods access the raw memory without any
* null checks, read- or write barriers. Even when the VM uses compressed pointers, then readObject
* and writeObject methods access uncompressed pointers.
*
* @since 19.0
*/
public interface Pointer extends UnsignedWord, PointerBase {
Unsafe conversion of this Pointer to a Java language object. No correctness checks or type
checks are performed. The caller must ensure that the Pointer contains a valid Java object
that can i.e., processed by the garbage collector.
Returns: this Pointer cast to Object. Since: 19.0
/**
* Unsafe conversion of this Pointer to a Java language object. No correctness checks or type
* checks are performed. The caller must ensure that the Pointer contains a valid Java object
* that can i.e., processed by the garbage collector.
*
* @return this Pointer cast to Object.
*
* @since 19.0
*/
Object toObject();
Unsafe conversion of this Pointer to a Java language object. No correctness checks or type
checks are performed. The caller must ensure that the Pointer contains a valid Java object
that can i.e., processed by the garbage collector and the Pointer does not contain 0.
Returns: this Pointer cast to non-null Object. Since: 19.0
/**
* Unsafe conversion of this Pointer to a Java language object. No correctness checks or type
* checks are performed. The caller must ensure that the Pointer contains a valid Java object
* that can i.e., processed by the garbage collector and the Pointer does not contain 0.
*
* @return this Pointer cast to non-null Object.
*
* @since 19.0
*/
Object toObjectNonNull();
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
byte readByte(WordBase offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
char readChar(WordBase offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
short readShort(WordBase offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
int readInt(WordBase offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
long readLong(WordBase offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
float readFloat(WordBase offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
double readDouble(WordBase offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
<T extends WordBase> T readWord(WordBase offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
Object readObject(WordBase offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
byte readByte(int offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
char readChar(int offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
short readShort(int offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
int readInt(int offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
long readLong(int offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
float readFloat(int offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
double readDouble(int offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
<T extends WordBase> T readWord(int offset, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the read
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the read
* @return the result of the memory access
*
* @since 19.0
*/
Object readObject(int offset, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeByte(WordBase offset, byte val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeChar(WordBase offset, char val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeShort(WordBase offset, short val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeInt(WordBase offset, int val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeLong(WordBase offset, long val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeFloat(WordBase offset, float val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeDouble(WordBase offset, double val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeWord(WordBase offset, WordBase val, LocationIdentity locationIdentity);
Initializes the memory at address (this + offset)
. Both the base address and offset are in bytes. The memory must be uninitialized or zero prior to this operation. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Initializes the memory at address {@code (this + offset)}. Both the base address and offset
* are in bytes. The memory must be uninitialized or zero prior to this operation.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void initializeLong(WordBase offset, long val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeObject(WordBase offset, Object val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeByte(int offset, byte val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeChar(int offset, char val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeShort(int offset, short val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeInt(int offset, int val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeLong(int offset, long val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeFloat(int offset, float val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeDouble(int offset, double val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeWord(int offset, WordBase val, LocationIdentity locationIdentity);
Initializes the memory at address (this + offset)
. Both the base address and offset are in bytes. The memory must be uninitialized or zero prior to this operation. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Initializes the memory at address {@code (this + offset)}. Both the base address and offset
* are in bytes. The memory must be uninitialized or zero prior to this operation.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void initializeLong(int offset, long val, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- locationIdentity – the identity of the write
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param locationIdentity the identity of the write
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeObject(int offset, Object val, LocationIdentity locationIdentity);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
byte readByte(WordBase offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
char readChar(WordBase offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
short readShort(WordBase offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
int readInt(WordBase offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
long readLong(WordBase offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
float readFloat(WordBase offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
double readDouble(WordBase offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
<T extends WordBase> T readWord(WordBase offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
Object readObject(WordBase offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
byte readByte(int offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
char readChar(int offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
short readShort(int offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
int readInt(int offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
long readLong(int offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
float readFloat(int offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
double readDouble(int offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
<T extends WordBase> T readWord(int offset);
Reads the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
Returns: the result of the memory access Since: 19.0
/**
* Reads the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @return the result of the memory access
*
* @since 19.0
*/
Object readObject(int offset);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeByte(WordBase offset, byte val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeChar(WordBase offset, char val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeShort(WordBase offset, short val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeInt(WordBase offset, int val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeLong(WordBase offset, long val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeFloat(WordBase offset, float val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeDouble(WordBase offset, double val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeWord(WordBase offset, WordBase val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeObject(WordBase offset, Object val);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: The value that was read for comparison, which is expectedValue
if the exchange was performed. Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return The value that was read for comparison, which is {@code expectedValue} if the
* exchange was performed.
*
* @since 19.0
*/
int compareAndSwapInt(WordBase offset, int expectedValue, int newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: The value that was read for comparison, which is expectedValue
if the exchange was performed. Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return The value that was read for comparison, which is {@code expectedValue} if the
* exchange was performed.
*
* @since 19.0
*/
long compareAndSwapLong(WordBase offset, long expectedValue, long newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: The value that was read for comparison, which is expectedValue
if the exchange was performed. Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return The value that was read for comparison, which is {@code expectedValue} if the
* exchange was performed.
*
* @since 19.0
*/
<T extends WordBase> T compareAndSwapWord(WordBase offset, T expectedValue, T newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: The value that was read for comparison, which is expectedValue
if the exchange was performed. Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return The value that was read for comparison, which is {@code expectedValue} if the
* exchange was performed.
*
* @since 19.0
*/
Object compareAndSwapObject(WordBase offset, Object expectedValue, Object newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: true
if successful. False return indicates that the actual value was not equal to the expected value.Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return {@code true} if successful. False return indicates that the actual value was not
* equal to the expected value.
*
* @since 19.0
*/
boolean logicCompareAndSwapInt(WordBase offset, int expectedValue, int newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: true
if successful. False return indicates that the actual value was not equal to the expected value.Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return {@code true} if successful. False return indicates that the actual value was not
* equal to the expected value.
*
* @since 19.0
*/
boolean logicCompareAndSwapLong(WordBase offset, long expectedValue, long newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: true
if successful. False return indicates that the actual value was not equal to the expected value.Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return {@code true} if successful. False return indicates that the actual value was not
* equal to the expected value.
*
* @since 19.0
*/
boolean logicCompareAndSwapWord(WordBase offset, WordBase expectedValue, WordBase newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. The offset is always treated as a SignedWord
value. However, the static type is WordBase
to avoid the frequent casts of UnsignedWord
values (where the caller knows that the highest-order bit of the unsigned value is never used).
Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: true
if successful. False return indicates that the actual value was not equal to the expected value.Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
* <p>
* The offset is always treated as a {@link SignedWord} value. However, the static type is
* {@link WordBase} to avoid the frequent casts of {@link UnsignedWord} values (where the caller
* knows that the highest-order bit of the unsigned value is never used).
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return {@code true} if successful. False return indicates that the actual value was not
* equal to the expected value.
*
* @since 19.0
*/
boolean logicCompareAndSwapObject(WordBase offset, Object expectedValue, Object newValue, LocationIdentity locationIdentity);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeByte(int offset, byte val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeChar(int offset, char val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeShort(int offset, short val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeInt(int offset, int val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeLong(int offset, long val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeFloat(int offset, float val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeDouble(int offset, double val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeWord(int offset, WordBase val);
Writes the memory at address (this + offset)
. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- val – the value to be written to memory
Since: 19.0
/**
* Writes the memory at address {@code (this + offset)}. Both the base address and offset are in
* bytes.
*
* @param offset the signed offset for the memory access
* @param val the value to be written to memory
*
* @since 19.0
*/
void writeObject(int offset, Object val);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: The value that was read for comparison, which is expectedValue
if the exchange was performed. Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return The value that was read for comparison, which is {@code expectedValue} if the
* exchange was performed.
*
* @since 19.0
*/
int compareAndSwapInt(int offset, int expectedValue, int newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: The value that was read for comparison, which is expectedValue
if the exchange was performed. Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return The value that was read for comparison, which is {@code expectedValue} if the
* exchange was performed.
*
* @since 19.0
*/
long compareAndSwapLong(int offset, long expectedValue, long newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: The value that was read for comparison, which is expectedValue
if the exchange was performed. Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return The value that was read for comparison, which is {@code expectedValue} if the
* exchange was performed.
*
* @since 19.0
*/
<T extends WordBase> T compareAndSwapWord(int offset, T expectedValue, T newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: The value that was read for comparison, which is expectedValue
if the exchange was performed. Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return The value that was read for comparison, which is {@code expectedValue} if the
* exchange was performed.
*
* @since 19.0
*/
Object compareAndSwapObject(int offset, Object expectedValue, Object newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: true
if successful. False return indicates that the actual value was not equal to the expected value.Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return {@code true} if successful. False return indicates that the actual value was not
* equal to the expected value.
*
* @since 19.0
*/
boolean logicCompareAndSwapInt(int offset, int expectedValue, int newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: true
if successful. False return indicates that the actual value was not equal to the expected value.Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return {@code true} if successful. False return indicates that the actual value was not
* equal to the expected value.
*
* @since 19.0
*/
boolean logicCompareAndSwapLong(int offset, long expectedValue, long newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: true
if successful. False return indicates that the actual value was not equal to the expected value.Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return {@code true} if successful. False return indicates that the actual value was not
* equal to the expected value.
*
* @since 19.0
*/
boolean logicCompareAndSwapWord(int offset, WordBase expectedValue, WordBase newValue, LocationIdentity locationIdentity);
In a single atomic step, compares the memory at address (this + offset)
to the expected value, and if equal, exchanges it for the new value. Both the base address and offset are in bytes. Params: - offset – the signed offset for the memory access
- expectedValue – the expected current value at the memory address
- newValue – the new value for the atomic exchange
- locationIdentity – the identity of the memory location
Returns: true
if successful. False return indicates that the actual value was not equal to the expected value.Since: 19.0
/**
* In a single atomic step, compares the memory at address {@code (this + offset)} to the
* expected value, and if equal, exchanges it for the new value. Both the base address and
* offset are in bytes.
*
* @param offset the signed offset for the memory access
* @param expectedValue the expected current value at the memory address
* @param newValue the new value for the atomic exchange
* @param locationIdentity the identity of the memory location
* @return {@code true} if successful. False return indicates that the actual value was not
* equal to the expected value.
*
* @since 19.0
*/
boolean logicCompareAndSwapObject(int offset, Object expectedValue, Object newValue, LocationIdentity locationIdentity);
// Math functions that are defined in Unsigned, but known to preserve the
// pointer-characteristics.
// It is therefore safe that they return a static type of Pointer instead of Unsigned.
Returns a Pointer whose value is (this + val)
. Params: - val – value to be added to this Pointer.
Returns: this + val
Since: 19.0
/**
* Returns a Pointer whose value is {@code (this + val)}.
*
* @param val value to be added to this Pointer.
* @return {@code this + val}
*
* @since 19.0
*/
@Override
Pointer add(UnsignedWord val);
Returns a Pointer whose value is (this + val)
. Params: - val – value to be added to this Pointer.
Returns: this + val
Since: 19.0
/**
* Returns a Pointer whose value is {@code (this + val)}.
*
* @param val value to be added to this Pointer.
* @return {@code this + val}
*
* @since 19.0
*/
@Override
Pointer add(int val);
Returns a Pointer whose value is (this - val)
. Params: - val – value to be subtracted from this Pointer.
Returns: this - val
Since: 19.0
/**
* Returns a Pointer whose value is {@code (this - val)}.
*
* @param val value to be subtracted from this Pointer.
* @return {@code this - val}
*
* @since 19.0
*/
@Override
Pointer subtract(UnsignedWord val);
Returns a Pointer whose value is (this - val)
. Params: - val – value to be subtracted from this Pointer.
Returns: this - val
Since: 19.0
/**
* Returns a Pointer whose value is {@code (this - val)}.
*
* @param val value to be subtracted from this Pointer.
* @return {@code this - val}
*
* @since 19.0
*/
@Override
Pointer subtract(int val);
Returns a Pointer whose value is (this & val)
. Params: - val – value to be AND'ed with this Pointer.
Returns: this & val
Since: 19.0
/**
* Returns a Pointer whose value is {@code (this & val)}.
*
* @param val value to be AND'ed with this Pointer.
* @return {@code this & val}
*
* @since 19.0
*/
@Override
Pointer and(UnsignedWord val);
Returns a Pointer whose value is (this & val)
. Params: - val – value to be AND'ed with this Pointer.
Returns: this & val
Since: 19.0
/**
* Returns a Pointer whose value is {@code (this & val)}.
*
* @param val value to be AND'ed with this Pointer.
* @return {@code this & val}
*
* @since 19.0
*/
@Override
Pointer and(int val);
Returns a Pointer whose value is (this | val)
. Params: - val – value to be OR'ed with this Pointer.
Returns: this | val
Since: 19.0
/**
* Returns a Pointer whose value is {@code (this | val)}.
*
* @param val value to be OR'ed with this Pointer.
* @return {@code this | val}
*
* @since 19.0
*/
@Override
Pointer or(UnsignedWord val);
Returns a Pointer whose value is (this | val)
. Params: - val – value to be OR'ed with this Pointer.
Returns: this | val
Since: 19.0
/**
* Returns a Pointer whose value is {@code (this | val)}.
*
* @param val value to be OR'ed with this Pointer.
* @return {@code this | val}
*
* @since 19.0
*/
@Override
Pointer or(int val);
}