org.apache.ignite.internal.mem.unsafe

Class UnsafeMemoryProvider

java.lang.Object

org.apache.ignite.internal.mem.unsafe.UnsafeMemoryProvider

All Implemented Interfaces:

DirectMemoryProvider

public class UnsafeMemoryProvider
extends Object
implements DirectMemoryProvider

Memory provider implementation based on unsafe memory access.

Supports memory reuse semantics.

Constructor Summary

Constructors

Constructor and Description
UnsafeMemoryProvider(IgniteLogger log)

Method Summary

Modifier and Type	Method and Description
void	initialize(long[] sizes)
DirectMemoryRegion	nextRegion() Attempts to allocate next memory region.
void	shutdown(boolean deallocate) Shuts down the provider.

Methods inherited from class java.lang.Object

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

Constructor Detail

UnsafeMemoryProvider

public UnsafeMemoryProvider(IgniteLogger log)

Parameters:

log - Ignite logger to use.

Method Detail

initialize

public void initialize(long[] sizes)

Specified by:

initialize in interface DirectMemoryProvider

Parameters:

sizes - Initializes provider with the chunk sizes.

shutdown

public void shutdown(boolean deallocate)

Shuts down the provider.

Specified by:

shutdown in interface DirectMemoryProvider

Parameters:

deallocate - True to deallocate memory, false to allow memory reuse.

nextRegion

public DirectMemoryRegion nextRegion()

Attempts to allocate next memory region. Will return null if no more regions are available.

Specified by:

nextRegion in interface DirectMemoryProvider

Returns:

Next memory region.