org.lwjgl.system.jemalloc

Interface ExtentDecommitI

All Superinterfaces:

org.lwjgl.system.CallbackI, org.lwjgl.system.CallbackI.Z, org.lwjgl.system.Pointer

All Known Implementing Classes:

ExtentDecommit

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ExtentDecommitI
extends org.lwjgl.system.CallbackI.Z

Instances of this interface may be set to the ExtentHooks struct.

Type

 bool (*) (
     extent_hooks_t *extent_hooks,
     void *addr,
     size_t size,
     size_t offset,
     size_t length,
     unsigned int arena_ind
 )

Nested Class Summary

Nested classes/interfaces inherited from interface org.lwjgl.system.CallbackI

org.lwjgl.system.CallbackI.B, org.lwjgl.system.CallbackI.D, org.lwjgl.system.CallbackI.F, org.lwjgl.system.CallbackI.I, org.lwjgl.system.CallbackI.J, org.lwjgl.system.CallbackI.N, org.lwjgl.system.CallbackI.P, org.lwjgl.system.CallbackI.S, org.lwjgl.system.CallbackI.V, org.lwjgl.system.CallbackI.Z

Nested classes/interfaces inherited from interface org.lwjgl.system.Pointer

org.lwjgl.system.Pointer.Default

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	SIGNATURE

Fields inherited from interface org.lwjgl.system.Pointer

BITS32, BITS64, CLONG_SHIFT, CLONG_SIZE, POINTER_SHIFT, POINTER_SIZE

Method Summary

Modifier and Type	Method and Description
default boolean	callback(long args)
default java.lang.String	getSignature()
boolean	invoke(long extent_hooks, long addr, long size, long offset, long length, int arena_ind) Extent decommit hook.

Methods inherited from interface org.lwjgl.system.CallbackI

address

Field Detail

SIGNATURE

static final java.lang.String SIGNATURE

See Also:

Constant Field Values

Method Detail

getSignature

default java.lang.String getSignature()

Specified by:

getSignature in interface org.lwjgl.system.CallbackI

callback

default boolean callback(long args)

Specified by:

callback in interface org.lwjgl.system.CallbackI.Z

invoke

boolean invoke(long extent_hooks,
               long addr,
               long size,
               long offset,
               long length,
               int arena_ind)

Extent decommit hook.

An extent decommit function conforms to the extent_decommit_t type and decommits any physical memory that is backing pages within an extent at given addr and size at offset bytes, extending for length on behalf of arena arena_ind, returning false upon success, in which case the pages will be committed via the extent commit function before being reused. If the function returns true, this indicates opt-out from decommit; the memory remains committed and available for future use, in which case it will be automatically retained for later reuse.