BufferUtils

java.lang.Object

zombie.core.utils.BufferUtils

public final class BufferUtils extends Object

Constructor Summary

Constructors

Constructor

Description

BufferUtils()
Method Summary

Modifier and Type

Method

Description

static ByteBuffer

createByteBuffer(int size)

static void

destroyDirectBuffer(Buffer toBeDestroyed)

Direct buffers are garbage collected by using a phantom reference and a reference queue.

static void

printCurrentDirectMemory(StringBuilder store)

static void

setTrackDirectMemoryEnabled(boolean enabled)

Set it to true if you want to enable direct memory tracking for debugging purpose.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- BufferUtils
  
  public BufferUtils()
Method Details
- setTrackDirectMemoryEnabled
  
  public static void setTrackDirectMemoryEnabled(boolean enabled)
  
  Set it to true if you want to enable direct memory tracking for debugging purpose. Default is false. To print direct memory usage use BufferUtils.printCurrentDirectMemory(StringBuilder store);
  
  Parameters:
  
  enabled -
- printCurrentDirectMemory
  
  public static void printCurrentDirectMemory(StringBuilder store)
- createByteBuffer
  
  public static ByteBuffer createByteBuffer(int size)
- destroyDirectBuffer
  
  public static void destroyDirectBuffer(Buffer toBeDestroyed)
  
  Direct buffers are garbage collected by using a phantom reference and a reference queue. Every once a while, the JVM checks the reference queue and cleans the direct buffers. However, as this doesn't happen immediately after discarding all references to a direct buffer, it's easy to OutOfMemoryError yourself using direct buffers. This function explicitly calls the Cleaner method of a direct buffer.
  
  Parameters:
  
  toBeDestroyed - The direct buffer that will be "cleaned". Utilizes reflection.