org.apache.cassandra.utils.memory

Class BufferPool.LocalPool

java.lang.Object

org.apache.cassandra.utils.memory.BufferPool.LocalPool

Enclosing class:

BufferPool

public final class BufferPool.LocalPool
extends java.lang.Object

A thread local class that grabs chunks from the global pool for this thread allocations. Only one thread can do the allocations but multiple threads can release the allocations.

Constructor Summary

Constructors

Constructor and Description
LocalPool()

Method Summary

Modifier and Type	Method and Description
boolean	canRecyclePartially()
java.nio.ByteBuffer	get(int size)
java.nio.ByteBuffer	getAtLeast(int size)
boolean	isTinyPool()
void	put(java.nio.ByteBuffer buffer)
void	putUnusedPortion(java.nio.ByteBuffer buffer)
void	recycle(org.apache.cassandra.utils.memory.BufferPool.Chunk chunk) Recycle a fully freed chunk
void	recyclePartially(org.apache.cassandra.utils.memory.BufferPool.Chunk chunk) Recycle a partially freed chunk
BufferPool.LocalPool	recycleWhenFree(boolean recycleWhenFree)
void	release()

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalPool

public LocalPool()

Method Detail

put

public void put(java.nio.ByteBuffer buffer)

putUnusedPortion

public void putUnusedPortion(java.nio.ByteBuffer buffer)

get

public java.nio.ByteBuffer get(int size)

getAtLeast

public java.nio.ByteBuffer getAtLeast(int size)

recycle

public void recycle(org.apache.cassandra.utils.memory.BufferPool.Chunk chunk)

Recycle a fully freed chunk

recyclePartially

public void recyclePartially(org.apache.cassandra.utils.memory.BufferPool.Chunk chunk)

Recycle a partially freed chunk

canRecyclePartially

public boolean canRecyclePartially()

Returns:

true if chunk can be reused before fully freed.

release

public void release()

isTinyPool

public boolean isTinyPool()

recycleWhenFree

public BufferPool.LocalPool recycleWhenFree(boolean recycleWhenFree)