Package gc.garcol.libcore

Class UnsafeBuffer

java.lang.Object
gc.garcol.libcore.UnsafeBuffer
public class UnsafeBuffer extends Object
A buffer that uses the Unsafe class for fast memory operations. Provides methods to put and get primitive types and byte arrays. Ensures memory visibility guarantees using Unsafe operations.
Since:
2024

  • Constructor Summary

    Constructors
    Constructor
    Description
    UnsafeBuffer(int initialCapacity)
    Constructs an UnsafeBuffer with the specified initial capacity.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    clearBytes(int fromIndex, int toIndex)
    Clears bytes in the specified range by setting them to zero.
    void
    getBytes(int index, ByteBuffer dstBuffer, int dstOffset, int length)
    Gets bytes from this buffer into the specified ByteBuffer.
    int
    getInt(int index)
    Gets an integer value from the specified index.
    long
    getLong(int index)
    Gets a long value from the specified index.
    void
    putBytes(int index, ByteBuffer srcBuffer, int srcIndex, int length)
    Puts bytes from the specified ByteBuffer into this buffer.
    void
    putInt(int index, int value)
    Puts an integer value at the specified index.
    void
    putLong(int index, long value)
    Puts a long value at the specified index.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • UnsafeBuffer

      public UnsafeBuffer(int initialCapacity)
      Constructs an UnsafeBuffer with the specified initial capacity.
      Parameters:
      initialCapacity - the initial capacity of the buffer

  • Method Details

    • putInt

      public void putInt(int index, int value)
      Puts an integer value at the specified index.
      Parameters:
      index - the index at which the value will be put
      value - the integer value to put

    • getInt

      public int getInt(int index)
      Gets an integer value from the specified index.
      Parameters:
      index - the index from which the value will be retrieved
      Returns:
      the integer value at the specified index

    • putLong

      public void putLong(int index, long value)
      Puts a long value at the specified index.
      Parameters:
      index - the index at which the value will be put
      value - the long value to put

    • getLong

      public long getLong(int index)
      Gets a long value from the specified index.
      Parameters:
      index - the index from which the value will be retrieved
      Returns:
      the long value at the specified index

    • putBytes

      public void putBytes(int index, ByteBuffer srcBuffer, int srcIndex, int length)
      Puts bytes from the specified ByteBuffer into this buffer.
      Parameters:
      index - the index at which the bytes will be put
      srcBuffer - the source ByteBuffer
      srcIndex - the index in the source ByteBuffer from which the bytes will be read
      length - the number of bytes to put

    • getBytes

      public void getBytes(int index, ByteBuffer dstBuffer, int dstOffset, int length)
      Gets bytes from this buffer into the specified ByteBuffer.
      Parameters:
      index - the index from which the bytes will be read
      dstBuffer - the destination ByteBuffer
      dstOffset - the offset in the destination ByteBuffer at which the bytes will be put
      length - the number of bytes to get

    • clearBytes

      public void clearBytes(int fromIndex, int toIndex)
      Clears bytes in the specified range by setting them to zero.
      Parameters:
      fromIndex - the starting index of the range to clear
      toIndex - the ending index of the range to clear