Top Description Fields Methods
org.lwjgl.system.rpmalloc

public Interface RPMemoryUnmapCallbackI

extends CallbackI
Known Direct Implementers
org.lwjgl.system.rpmalloc.RPMemoryUnmapCallback
Annotations
@FunctionalInterface
@NativeType:void (*) (void *, size_t, size_t, int)
Imports
org.lwjgl.system.*, org.lwjgl.system.libffi.*
Instances of this interface may be set to the RPMallocConfig struct.

Type


void (*invoke) (
    void *address,
    size_t size,
    size_t offset,
    int release
)

Field Summary

Modifier and TypeField and Description
public static final FFICIF
CIF

Method Summary

Modifier and TypeMethod and Description
public default void
callback(long
a pointer to the memory used for the function's return value.

If the function is declared as returning void, then this value is garbage and should not be used.

Otherwise, the callback must fill the object to which this points, following the same special promotion behavior as LibFFI#ffi_call. That is, in most cases, ret points to an object of exactly the size of the type specified when CIF was constructed. However, integral types narrower than the system register size are widened. In these cases your program may assume that ret points to an ffi_arg object.

ret, long
a vector of pointers to memory holding the arguments to the function
args)

Implements org.lwjgl.system.CallbackI.callback.

The Java method that will be called from native code when the native callback function is invoked.
public default FFICIF
getCallInterface()

Implements org.lwjgl.system.CallbackI.getCallInterface.

Returns the libffi Call Interface for this callback function.
public void
invoke(long
the address to unmap
address, long
the size of the mapped pages, in bytes
size, long
the alignment offset
offset, boolean
the release flag
release)

Unmap the memory pages starting at address and spanning the given number of bytes.

Inherited from org.lwjgl.system.CallbackI:
address

Field Detail

CIFback to summary
public static final FFICIF CIF

Method Detail

callbackback to summary
public default void callback(long ret, long args)

Implements org.lwjgl.system.CallbackI.callback.

Doc from org.lwjgl.system.CallbackI.callback.

The Java method that will be called from native code when the native callback function is invoked.

Parameters
ret:long

a pointer to the memory used for the function's return value.

If the function is declared as returning void, then this value is garbage and should not be used.

Otherwise, the callback must fill the object to which this points, following the same special promotion behavior as LibFFI#ffi_call. That is, in most cases, ret points to an object of exactly the size of the type specified when CIF was constructed. However, integral types narrower than the system register size are widened. In these cases your program may assume that ret points to an ffi_arg object.

args:long

a vector of pointers to memory holding the arguments to the function

Annotations
@Override
getCallInterfaceback to summary
public default FFICIF getCallInterface()

Implements org.lwjgl.system.CallbackI.getCallInterface.

Doc from org.lwjgl.system.CallbackI.getCallInterface.

Returns the libffi Call Interface for this callback function. [INTERNAL API]

Returns:FFICIF

the CIF structure for this callback function

Annotations
@Override
invokeback to summary
public void invoke(long address, long size, long offset, boolean release)

Unmap the memory pages starting at address and spanning the given number of bytes.

If release is set to non-zero, the unmap is for an entire span range as returned by a previous call to memory_map and that the entire range should be released. The release argument holds the size of the entire span range. If release is set to 0, the unmap is a partial decommit of a subset of the mapped memory range.

If you set a memory_unmap function, you must also set a memory_map function or else the default implementation will be used for both.

Parameters
address:long

the address to unmap

size:long

the size of the mapped pages, in bytes

offset:long

the alignment offset

release:boolean

the release flag