Top Description Fields Constructors Methods

io.undertow.server

public final Class DirectByteBufferDeallocator

Class Inheritance

extends Object

java.lang.Object
io.undertow.server.DirectByteBufferDeallocator

Imports

java.lang.reflect.Field, .Method, java.nio.ByteBuffer, java.security.AccessController, .PrivilegedAction, io.undertow.UndertowLogger, sun.misc.Unsafe

DirectByteBufferDeallocator Utility class used to free direct buffer memory.

Field Summary

Modifier and Type	Field and Description
private static final Method	cleaner
private static final Method	cleanerClean
private static final boolean	SUPPORTED
private static final Unsafe	UNSAFE

Constructor Summary

Access	Constructor and Description
private	DirectByteBufferDeallocator()

Method Summary

Modifier and Type	Method and Description
public static void	free(ByteBuffer to deallocate buffer) Attempts to deallocate the underlying direct memory.
private static Method	getAccesibleMethod(String className, String methodName)
private static Method	getAccesibleMethod0(String className, String methodName)
private static Method	getDeclaredMethod(Unsafe tmpUnsafe, String methodName, Class<?>... parameterTypes)
private static Method	getDeclaredMethod0(Unsafe tmpUnsafe, String methodName, Class<?>... parameterTypes)
private static Unsafe	getUnsafe()
private static Unsafe	getUnsafe0()

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

cleaner	back to summary
private static final Method cleaner

cleanerClean	back to summary
private static final Method cleanerClean

SUPPORTED	back to summary
private static final boolean SUPPORTED

UNSAFE	back to summary
private static final Unsafe UNSAFE

Constructor Detail

DirectByteBufferDeallocator	back to summary
private DirectByteBufferDeallocator()

Method Detail

free back to summary

public static void free(ByteBuffer buffer)

Attempts to deallocate the underlying direct memory. This is a no-op for buffers where ByteBuffer#isDirect() returns false.

Parameters

buffer:ByteBuffer: to deallocate

getAccesibleMethod	back to summary
private static Method getAccesibleMethod(String className, String methodName)

getAccesibleMethod0	back to summary
private static Method getAccesibleMethod0(String className, String methodName)

getDeclaredMethod	back to summary
private static Method getDeclaredMethod(Unsafe tmpUnsafe, String methodName, Class<?>... parameterTypes)

getDeclaredMethod0	back to summary
private static Method getDeclaredMethod0(Unsafe tmpUnsafe, String methodName, Class<?>... parameterTypes)

getUnsafe	back to summary
private static Unsafe getUnsafe()

getUnsafe0	back to summary
private static Unsafe getUnsafe0()