Package io.netty.util.internal

Class CleanerJava9

java.lang.Object

io.netty.util.internal.CleanerJava9

All Implemented Interfaces:

Cleaner

final class CleanerJava9
extends java.lang.Object
implements Cleaner

Provide a way to clean a ByteBuffer on Java9+.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	CleanerJava9.CleanableDirectBufferImpl

Field Summary

Fields

Modifier and Type	Field	Description
private static MethodHandle	INVOKE_CLEANER
private static InternalLogger	logger

Constructor Summary

Constructors

Constructor	Description
CleanerJava9()

Method Summary

Modifier and Type	Method	Description
CleanableDirectBuffer	allocate(int capacity)	Create a direct ByteBuffer and return it alongside its cleaning mechanism, in a CleanableDirectBuffer.
void	freeDirectBuffer(java.nio.ByteBuffer buffer)	Deprecated.
private static void	freeDirectBufferPrivileged(java.nio.ByteBuffer buffer)
private static void	freeDirectBufferStatic(java.nio.ByteBuffer buffer)
boolean	hasExpensiveClean()	Check if the clean operation is "relatively expensive".
(package private) static boolean	isSupported()

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.netty.util.internal.Cleaner

reallocate

Field Detail

logger

private static final InternalLogger logger

INVOKE_CLEANER

private static final MethodHandle INVOKE_CLEANER

Constructor Detail

CleanerJava9

CleanerJava9()

Method Detail

isSupported

static boolean isSupported()

allocate

public CleanableDirectBuffer allocate(int capacity)

Description copied from interface: Cleaner

Create a direct ByteBuffer and return it alongside its cleaning mechanism, in a CleanableDirectBuffer.

Specified by:

allocate in interface Cleaner

Parameters:

capacity - The desired capacity of the direct buffer.

Returns:

The new CleanableDirectBuffer instance.

freeDirectBuffer

@Deprecated
public void freeDirectBuffer(java.nio.ByteBuffer buffer)

Deprecated.

Description copied from interface: Cleaner

Free a direct ByteBuffer if possible

Specified by:

freeDirectBuffer in interface Cleaner

hasExpensiveClean

public boolean hasExpensiveClean()

Description copied from interface: Cleaner

Check if the clean operation is "relatively expensive". Expensive clean operations are fine for pooling allocators, but should be avoided for unpooled buffers.

Specified by:

hasExpensiveClean in interface Cleaner

Returns:

true if this Cleaner has an expensive clean (i.e. CleanableDirectBuffer.clean()) operation.

freeDirectBufferStatic

private static void freeDirectBufferStatic(java.nio.ByteBuffer buffer)

freeDirectBufferPrivileged

private static void freeDirectBufferPrivileged(java.nio.ByteBuffer buffer)