Package org.lwjgl.system.jemalloc
Interface ExtentPurgeI
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- All Superinterfaces:
org.lwjgl.system.CallbackI
,org.lwjgl.system.CallbackI.Z
,org.lwjgl.system.Pointer
- All Known Implementing Classes:
ExtentPurge
- 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 ExtentPurgeI extends org.lwjgl.system.CallbackI.Z
Instances of this interface may be set to theExtentHooks
struct.Type
bool (*) ( extent_hooks_t *extent_hooks, void *addr, size_t size, size_t offset, size_t length, unsigned int arena_ind )
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Nested Class Summary
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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
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Field Summary
Fields Modifier and Type Field Description static java.lang.String
SIGNATURE
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Method Summary
All Methods Instance Methods Abstract Methods Default Methods Modifier and Type Method 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 purge hook.
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Field Detail
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SIGNATURE
static final java.lang.String SIGNATURE
- See Also:
- Constant Field Values
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Method Detail
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getSignature
default java.lang.String getSignature()
- Specified by:
getSignature
in interfaceorg.lwjgl.system.CallbackI
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callback
default boolean callback(long args)
- Specified by:
callback
in interfaceorg.lwjgl.system.CallbackI.Z
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invoke
boolean invoke(long extent_hooks, long addr, long size, long offset, long length, int arena_ind)
Extent purge hook.An extent purge function conforms to the
extent_purge_t
type and discards physical pages within the virtual memory mapping associated with an extent at givenaddr
andsize
atoffset
bytes, extending forlength
on behalf of arenaarena_ind
. A lazy extent purge function (e.g. implemented viamadvise(..., MADV_FREE)
) can delay purging indefinitely and leave the pages within the purged virtual memory range in an indeterminite state, whereas a forced extent purge function immediately purges, and the pages within the virtual memory range will be zero-filled the next time they are accessed. If the function returns true, this indicates failure to purge.
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