Package org.nustaq.offheap.bytez.malloc

Class MemoryBytez

java.lang.Object
org.nustaq.offheap.bytez.malloc.MemoryBytez
All Implemented Interfaces:
BasicBytez, ByteSink, ByteSource, Bytez
Direct Known Subclasses:
MMFBytez
public class MemoryBytez extends Object implements Bytez
Date: 17.11.13 Time: 00:01 implementation of Bytez interface using unsafe on raw allocated memory

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    MemoryBytez()
     
     
    MemoryBytez(long len)
     
     
    MemoryBytez(MemorySegment mem)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    byte[]
    asByteArray()
     
    boolean
    compareAndSwapInt(long offset, int expect, int newVal)
     
    boolean
    compareAndSwapLong(long offset, long expect, long newVal)
     
    void
    copyTo(BasicBytez other, long otherByteIndex, long myByteIndex, long lenBytes)
     
    boolean
    equals(Object obj)
     
    byte
    get(long byteIndex)
     
    void
    getArr(long byteIndex, byte[] target, int elemoff, int numElems)
    copy to a byte array
    int
    getBALength()
     
    int
    getBAOffsetIndex()
     
    boolean
    getBool(long byteIndex)
     
    void
    getBooleanArr(long byteIndex, boolean[] target, int elemoff, int numElems)
    see getArr
    char
    getChar(long byteIndex)
     
    void
    getCharArr(long byteIndex, char[] target, int elemoff, int numElems)
    see getArr
    double
    getDouble(long byteIndex)
     
    void
    getDoubleArr(long byteIndex, double[] target, int elemoff, int numElems)
    see getArr
    float
    getFloat(long byteIndex)
     
    void
    getFloatArr(long byteIndex, float[] target, int elemoff, int numElems)
    see getArr
    int
    getInt(long byteIndex)
     
    void
    getIntArr(long byteIndex, int[] target, int elemoff, int numElems)
    see getArr
    long
    getLength()
     
    long
    getLong(long byteIndex)
     
    void
    getLongArr(long byteIndex, long[] target, int elemoff, int numElems)
    see getArr
    short
    getShort(long byteIndex)
     
    void
    getShortArr(long byteIndex, short[] target, int elemoff, int numElems)
    see getArr
    int
    hashCode()
     
    long
    length()
     
    static void
    main(String[] args)
     
    BasicBytez
    newInstance(long size)
     
    void
    put(long byteIndex, byte value)
     
    void
    putBool(long byteIndex, boolean val)
     
    void
    putChar(long byteIndex, char c)
     
    void
    putDouble(long byteIndex, double d)
     
    void
    putFloat(long byteIndex, float f)
     
    void
    putInt(long byteIndex, int i)
     
    void
    putLong(long byteIndex, long l)
     
    void
    putShort(long byteIndex, short s)
     
    void
    set(long byteIndex, byte[] source, int elemoff, int numElems)
     
    void
    setBoolean(long byteIndex, boolean[] o, int elemoff, int numElems)
     
    void
    setChar(long byteIndex, char[] source, int elemoff, int numElems)
     
    void
    setDouble(long byteIndex, double[] source, int elemoff, int numElems)
     
    void
    setFloat(long byteIndex, float[] source, int elemoff, int numElems)
     
    void
    setInt(long byteIndex, int[] source, int elemoff, int numElems)
     
    void
    setLong(long byteIndex, long[] source, int elemoff, int numElems)
     
    void
    setShort(long byteIndex, short[] source, int elemoff, int numElems)
     
    MemoryBytez
    slice(long off, int len)
     
    byte[]
    toBytes(long startIndex, int len)
     

    Methods inherited from class java.lang.Object

    clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • MemoryBytez

      protected MemoryBytez()

    • MemoryBytez

      public MemoryBytez(long len)

    • MemoryBytez

      public MemoryBytez(MemorySegment mem)

  • Method Details

    • slice

      public MemoryBytez slice(long off, int len)
      Specified by:
      slice in interface Bytez

    • get

      public byte get(long byteIndex)
      Specified by:
      get in interface BasicBytez
      Specified by:
      get in interface ByteSource

    • getBool

      public boolean getBool(long byteIndex)
      Specified by:
      getBool in interface BasicBytez

    • getChar

      public char getChar(long byteIndex)
      Specified by:
      getChar in interface BasicBytez

    • getShort

      public short getShort(long byteIndex)
      Specified by:
      getShort in interface BasicBytez

    • getInt

      public int getInt(long byteIndex)
      Specified by:
      getInt in interface BasicBytez

    • getLong

      public long getLong(long byteIndex)
      Specified by:
      getLong in interface BasicBytez

    • getFloat

      public float getFloat(long byteIndex)
      Specified by:
      getFloat in interface BasicBytez

    • getDouble

      public double getDouble(long byteIndex)
      Specified by:
      getDouble in interface BasicBytez

    • put

      public void put(long byteIndex, byte value)
      Specified by:
      put in interface BasicBytez
      Specified by:
      put in interface ByteSink

    • putBool

      public void putBool(long byteIndex, boolean val)
      Specified by:
      putBool in interface BasicBytez

    • putChar

      public void putChar(long byteIndex, char c)
      Specified by:
      putChar in interface BasicBytez

    • putShort

      public void putShort(long byteIndex, short s)
      Specified by:
      putShort in interface BasicBytez

    • putInt

      public void putInt(long byteIndex, int i)
      Specified by:
      putInt in interface BasicBytez

    • putLong

      public void putLong(long byteIndex, long l)
      Specified by:
      putLong in interface BasicBytez

    • putFloat

      public void putFloat(long byteIndex, float f)
      Specified by:
      putFloat in interface BasicBytez

    • putDouble

      public void putDouble(long byteIndex, double d)
      Specified by:
      putDouble in interface BasicBytez

    • length

      public long length()
      Specified by:
      length in interface BasicBytez
      Specified by:
      length in interface ByteSink
      Specified by:
      length in interface ByteSource

    • getArr

      public void getArr(long byteIndex, byte[] target, int elemoff, int numElems)
      Description copied from interface: BasicBytez
      copy to a byte array
      Specified by:
      getArr in interface BasicBytez
      Parameters:
      byteIndex - - offset index in this buffer to start copying
      target - - array to copy to
      elemoff - - offset in target array
      numElems - - length to copy to

    • getCharArr

      public void getCharArr(long byteIndex, char[] target, int elemoff, int numElems)
      Description copied from interface: BasicBytez
      see getArr
      Specified by:
      getCharArr in interface BasicBytez

    • getShortArr

      public void getShortArr(long byteIndex, short[] target, int elemoff, int numElems)
      Description copied from interface: BasicBytez
      see getArr
      Specified by:
      getShortArr in interface BasicBytez

    • getIntArr

      public void getIntArr(long byteIndex, int[] target, int elemoff, int numElems)
      Description copied from interface: BasicBytez
      see getArr
      Specified by:
      getIntArr in interface BasicBytez

    • getLongArr

      public void getLongArr(long byteIndex, long[] target, int elemoff, int numElems)
      Description copied from interface: BasicBytez
      see getArr
      Specified by:
      getLongArr in interface BasicBytez

    • getFloatArr

      public void getFloatArr(long byteIndex, float[] target, int elemoff, int numElems)
      Description copied from interface: BasicBytez
      see getArr
      Specified by:
      getFloatArr in interface BasicBytez

    • getDoubleArr

      public void getDoubleArr(long byteIndex, double[] target, int elemoff, int numElems)
      Description copied from interface: BasicBytez
      see getArr
      Specified by:
      getDoubleArr in interface BasicBytez

    • getBooleanArr

      public void getBooleanArr(long byteIndex, boolean[] target, int elemoff, int numElems)
      Description copied from interface: BasicBytez
      see getArr
      Specified by:
      getBooleanArr in interface BasicBytez

    • set

      public void set(long byteIndex, byte[] source, int elemoff, int numElems)
      Specified by:
      set in interface BasicBytez

    • setChar

      public void setChar(long byteIndex, char[] source, int elemoff, int numElems)
      Specified by:
      setChar in interface BasicBytez

    • setShort

      public void setShort(long byteIndex, short[] source, int elemoff, int numElems)
      Specified by:
      setShort in interface BasicBytez

    • setInt

      public void setInt(long byteIndex, int[] source, int elemoff, int numElems)
      Specified by:
      setInt in interface BasicBytez

    • setLong

      public void setLong(long byteIndex, long[] source, int elemoff, int numElems)
      Specified by:
      setLong in interface BasicBytez

    • setFloat

      public void setFloat(long byteIndex, float[] source, int elemoff, int numElems)
      Specified by:
      setFloat in interface BasicBytez

    • setDouble

      public void setDouble(long byteIndex, double[] source, int elemoff, int numElems)
      Specified by:
      setDouble in interface BasicBytez

    • setBoolean

      public void setBoolean(long byteIndex, boolean[] o, int elemoff, int numElems)
      Specified by:
      setBoolean in interface BasicBytez

    • copyTo

      public void copyTo(BasicBytez other, long otherByteIndex, long myByteIndex, long lenBytes)
      Specified by:
      copyTo in interface BasicBytez
      Specified by:
      copyTo in interface ByteSink

    • newInstance

      public BasicBytez newInstance(long size)
      Specified by:
      newInstance in interface BasicBytez

    • compareAndSwapInt

      public boolean compareAndSwapInt(long offset, int expect, int newVal)
      Specified by:
      compareAndSwapInt in interface Bytez

    • compareAndSwapLong

      public boolean compareAndSwapLong(long offset, long expect, long newVal)
      Specified by:
      compareAndSwapLong in interface Bytez

    • toBytes

      public byte[] toBytes(long startIndex, int len)
      Specified by:
      toBytes in interface Bytez

    • asByteArray

      public byte[] asByteArray()
      Specified by:
      asByteArray in interface Bytez
      Returns:
      return the underlying byte array, not supported by MallocBytez !. Use getArr to extract data by copy instead.

    • getBAOffsetIndex

      public int getBAOffsetIndex()
      Specified by:
      getBAOffsetIndex in interface Bytez
      Returns:
      the start index inside the byte array returned by asByteArray, not supported by MallocBytez

    • getBALength

      public int getBALength()
      Specified by:
      getBALength in interface Bytez
      Returns:
      the length inside the byte array returned by asByteArray, not supported by MallocBytez

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object

    • getLength

      public long getLength()

    • main

      public static void main(String[] args) throws Exception
      Throws:
      Exception