Constructor and Description |
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HeapMemory(byte[] buffer,
int offset,
int length) |
HeapMemory(int size) |
Modifier and Type | Method and Description |
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byte[] |
array() |
int |
arrayLength() |
int |
arrayOffset() |
void |
clear() |
void |
get(long offset,
byte[] dst,
int off,
int len)
Reads an array of bytes from the memory area at the specified offset.
|
void |
get(long offset,
double[] dst,
int off,
int len)
Reads an array of doubles from the memory area at the specified offset.
|
void |
get(long offset,
float[] dst,
int off,
int len)
Reads an array of floats from the memory area at the specified offset.
|
void |
get(long offset,
int[] dst,
int off,
int len)
Reads an array of ints from the memory area at the specified offset.
|
void |
get(long offset,
long[] dst,
int off,
int len)
Reads an array of longs from the memory area at the specified offset.
|
void |
get(long offset,
short[] dst,
int off,
int len)
Reads an array of shorts from the memory area at the specified offset.
|
long |
getAddress(long offset)
Reads a pointer value at the specified offset within the memory area.
|
byte |
getByte(long offset)
Reads an 8 bit integer value from the memory area.
|
double |
getDouble(long offset)
Reads a double value from the memory area.
|
float |
getFloat(long offset)
Reads a float value from the memory area.
|
int |
getInt(long offset)
Reads a 32 bit integer value from the memory area.
|
long |
getLong(long offset)
Reads a 64 bit integer value from the memory area.
|
DirectMemory |
getMemory(long offset)
Reads a pointer value at the specified offset within the memory area, and
wraps it in an abstract memory accessor.
|
long |
getNativeLong(long offset)
Reads a native long integer value from the memory area.
|
short |
getShort(long offset)
Reads a 16 bit integer value from the memory area.
|
byte[] |
getZeroTerminatedByteArray(long offset)
Reads a zero terminated byte array (e.g. an ascii or utf-8 string)
|
int |
indexOf(long offset,
byte value)
Gets the first index within the memory area of a particular 8 bit value.
|
int |
indexOf(long offset,
byte value,
int maxlen)
Gets the first index within the memory area of a particular 8 bit value.
|
boolean |
isDirect()
Checks if the memory area is a native memory pointer.
|
boolean |
isNull()
Checks if the memory area is NULL.
|
void |
put(long offset,
byte[] src,
int off,
int len)
Writes an array of bytes to the memory area at the specified offset.
|
void |
put(long offset,
double[] src,
int off,
int len)
Writes an array of doubles to the memory area at the specified offset.
|
void |
put(long offset,
float[] src,
int off,
int len)
Writes an array of floats to the memory area at the specified offset.
|
void |
put(long offset,
int[] src,
int off,
int len)
Writes an array of ints to the memory area at the specified offset.
|
void |
put(long offset,
long[] src,
int off,
int len)
Writes an array of longs to the memory area at the specified offset.
|
void |
put(long offset,
short[] src,
int off,
int len)
Writes an array of shorts to the memory area at the specified offset.
|
void |
putAddress(long offset,
long value)
Writes a pointer value to the memory area at the specified offset.
|
void |
putAddress(long offset,
Memory value)
Writes a pointer value to the memory area at the specified offset.
|
void |
putByte(long offset,
byte value)
Writes an 8 bit integer value to the memory area at the specified offset.
|
void |
putDouble(long offset,
double value)
Writes a 64 bit float value to the memory area at the specified offset.
|
void |
putFloat(long offset,
float value)
Writes a 32 bit float value to the memory area at the specified offset.
|
void |
putInt(long offset,
int value)
Writes a 32 bit integer value to the memory area at the specified offset.
|
void |
putLong(long offset,
long value)
Writes a 64 bit integer value to the memory area at the specified offset.
|
void |
putNativeLong(long offset,
long value)
Writes a native long integer value to the memory area at the specified offset.
|
void |
putShort(long offset,
short value)
Writes a 16 bit integer value to the memory area at the specified offset.
|
void |
putZeroTerminatedByteArray(long offset,
byte[] bytes,
int off,
int len)
Writes a byte array to memory, and appends a zero terminator
|
void |
setMemory(long offset,
long size,
byte value)
Sets the contents of the memory area to the value.
|
HeapMemory |
slice(long offset)
Creates a new MemoryIO pointing to a subset of the memory area of this
MemoryIO.
|
public HeapMemory(byte[] buffer, int offset, int length)
public HeapMemory(int size)
public final byte[] array()
public final int arrayOffset()
public final int arrayLength()
public final boolean isNull()
Memory
public final boolean isDirect()
Memory
public HeapMemory slice(long offset)
Memory
public final DirectMemory getMemory(long offset)
Memory
public final void putAddress(long offset, Memory value)
Memory
putAddress
in interface Memory
offset
- The offset within the memory area to write the value.value
- The pointer value to write to the memory location.public final byte getByte(long offset)
Memory
public final short getShort(long offset)
Memory
public final int getInt(long offset)
Memory
public final long getLong(long offset)
Memory
public final long getNativeLong(long offset)
Memory
A native long is 32bits on either ILP32 or LLP64 architectures, and 64 bits on an LP64 architecture.
This means that it will always read a 32bit value on Windows, but on Unix systems such as MacOS or Linux, it will read a 32bit value on 32bit systems, and a 64bit value on 64bit systems.
getNativeLong
in interface Memory
offset
- The offset within the memory area to read the value.public final float getFloat(long offset)
Memory
public final double getDouble(long offset)
Memory
public final long getAddress(long offset)
Memory
getAddress
in interface Memory
offset
- The offset within the memory area to read the value.public final byte[] getZeroTerminatedByteArray(long offset)
Memory
getZeroTerminatedByteArray
in interface Memory
offset
- The offset within the memory area of the start of the string.public final void putByte(long offset, byte value)
Memory
public final void putShort(long offset, short value)
Memory
public final void putInt(long offset, int value)
Memory
public final void putLong(long offset, long value)
Memory
public final void putNativeLong(long offset, long value)
Memory
putNativeLong
in interface Memory
offset
- The offset within the memory area to write the value.value
- The native long integer value to write to the memory location.public final void putFloat(long offset, float value)
Memory
public final void putDouble(long offset, double value)
Memory
public final void putAddress(long offset, long value)
Memory
putAddress
in interface Memory
offset
- The offset within the memory area to write the value.value
- The pointer value to write to the memory location.public void putZeroTerminatedByteArray(long offset, byte[] bytes, int off, int len)
Memory
putZeroTerminatedByteArray
in interface Memory
offset
- The offset within the memory area of the start of the string.bytes
- The byte array to write to the memory.off
- The offset with the byte array to start copying.len
- The number of bytes of the byte array to write to the memory area. (not including zero byte)public final void get(long offset, byte[] dst, int off, int len)
Memory
public final void put(long offset, byte[] src, int off, int len)
Memory
public final void get(long offset, short[] dst, int off, int len)
Memory
public final void put(long offset, short[] src, int off, int len)
Memory
public final void get(long offset, int[] dst, int off, int len)
Memory
public final void put(long offset, int[] src, int off, int len)
Memory
public final void get(long offset, long[] dst, int off, int len)
Memory
public final void put(long offset, long[] src, int off, int len)
Memory
public final void get(long offset, float[] dst, int off, int len)
Memory
public final void put(long offset, float[] src, int off, int len)
Memory
public final void get(long offset, double[] dst, int off, int len)
Memory
public final void put(long offset, double[] src, int off, int len)
Memory
public final int indexOf(long offset, byte value)
Memory
public final int indexOf(long offset, byte value, int maxlen)
Memory
public final void setMemory(long offset, long size, byte value)
Memory
public final void clear()