Package jnr.ffi.provider.jffi

Class TransientNativeMemory

java.lang.Object

jnr.ffi.Pointer

jnr.ffi.provider.AbstractMemoryIO

jnr.ffi.provider.jffi.DirectMemoryIO

jnr.ffi.provider.jffi.TransientNativeMemory

public class TransientNativeMemory
extends DirectMemoryIO

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	TransientNativeMemory.Magazine	Holder for a group of memory allocations.
private static class	TransientNativeMemory.Sentinel

Field Summary

Fields

Modifier and Type	Field	Description
private static java.lang.ThreadLocal<TransientNativeMemory.Magazine>	currentMagazine
private static int	PAGES_PER_MAGAZINE
private static java.util.Map<TransientNativeMemory.Magazine,java.lang.Boolean>	referenceSet	Keeps strong references to the magazine until cleanup
private TransientNativeMemory.Sentinel	sentinel
private long	size

Fields inherited from class jnr.ffi.provider.jffi.DirectMemoryIO

IO

Constructor Summary

Constructors

Constructor	Description
TransientNativeMemory(Runtime runtime, TransientNativeMemory.Sentinel sentinel, long address, long size)

Method Summary

Modifier and Type	Method	Description
private static long	align(long offset, long align)
static DirectMemoryIO	allocate(Runtime runtime, int size, int align, boolean clear)
static DirectMemoryIO	allocate(Runtime runtime, long size, int align, boolean clear)
void	dispose()
boolean	equals(java.lang.Object obj)
int	hashCode()
long	size()	Gets the size of this memory object in bytes (optional operation).

Methods inherited from class jnr.ffi.provider.jffi.DirectMemoryIO

array, arrayLength, arrayOffset, get, get, get, get, get, get, getByte, getDouble, getFloat, getInt, getLongLong, getPointer, getPointer, getShort, getString, getString, hasArray, indexOf, put, put, put, put, put, put, putByte, putDouble, putFloat, putInt, putLongLong, putPointer, putShort, putString, putZeroTerminatedByteArray, setMemory, transferFrom, transferTo

Methods inherited from class jnr.ffi.provider.AbstractMemoryIO

checkBounds, checkBounds, getAddress, getInt, getLong, getNativeLong, indexOf, putAddress, putAddress, putInt, putLong, putNativeLong, slice, slice

Methods inherited from class jnr.ffi.Pointer

address, get, getNullTerminatedPointerArray, getNullTerminatedStringArray, getRuntime, isDirect, newIntPointer, put, toString, wrap, wrap, wrap

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

referenceSet

private static final java.util.Map<TransientNativeMemory.Magazine,java.lang.Boolean> referenceSet

Keeps strong references to the magazine until cleanup

currentMagazine

private static final java.lang.ThreadLocal<TransientNativeMemory.Magazine> currentMagazine

PAGES_PER_MAGAZINE

private static final int PAGES_PER_MAGAZINE

See Also:

Constant Field Values

sentinel

private final TransientNativeMemory.Sentinel sentinel

size

private final long size

Constructor Detail

TransientNativeMemory

TransientNativeMemory(Runtime runtime,
                      TransientNativeMemory.Sentinel sentinel,
                      long address,
                      long size)

Method Detail

allocate

public static DirectMemoryIO allocate(Runtime runtime,
                                      int size,
                                      int align,
                                      boolean clear)

allocate

public static DirectMemoryIO allocate(Runtime runtime,
                                      long size,
                                      int align,
                                      boolean clear)

align

private static long align(long offset,
                          long align)

size

public long size()

Description copied from class: Pointer

Gets the size of this memory object in bytes (optional operation).

Overrides:

size in class DirectMemoryIO

Returns:

the size of the memory area this Pointer points to. If the size is unknown, Long.MAX_VALUE is returned}.

hashCode

public int hashCode()

Overrides:

hashCode in class DirectMemoryIO

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class DirectMemoryIO

dispose

public final void dispose()