Module de.ibapl.jnhw.common

Package de.ibapl.jnhw.common.memory.layout

Enum Alignment

java.lang.Object

java.lang.Enum<Alignment>

de.ibapl.jnhw.common.memory.layout.Alignment

All Implemented Interfaces:

Serializable, Comparable<Alignment>

public enum Alignment
extends Enum<Alignment>

Author:

aploese

Enum Constant Summary

Enum Constants

Enum Constant	Description
AT_1
AT_16	aarch64 POSIX->signal.h -> ucontext_t
AT_2
AT_4
AT_8

Field Summary

Fields

Modifier and Type	Field	Description
static Alignment	__ALIGN_OF_DOUBLE
static Alignment	__ALIGN_OF_FLOAT
static Alignment	__ALIGN_OF_INT16_T
static Alignment	__ALIGN_OF_INT32_T
static Alignment	__ALIGN_OF_INT64_T
static Alignment	__ALIGN_OF_INT8_T
static Alignment	__ALIGN_OF_INTPTR_T
static Alignment	__ALIGN_OF_LONG
static Alignment	__ALIGN_OF_LONG_DOUBLE
static Alignment	__ALIGN_OF_POINTER
static Alignment	__ALIGN_OF_STRUCT_DOUBLE
static Alignment	__ALIGN_OF_STRUCT_FLOAT
static Alignment	__ALIGN_OF_STRUCT_INT16_T
static Alignment	__ALIGN_OF_STRUCT_INT32_T
static Alignment	__ALIGN_OF_STRUCT_INT64_T
static Alignment	__ALIGN_OF_STRUCT_INT8_T
static Alignment	__ALIGN_OF_STRUCT_INTPTR_T
static Alignment	__ALIGN_OF_STRUCT_LONG
static Alignment	__ALIGN_OF_STRUCT_LONG_DOUBLE
static Alignment	__ALIGN_OF_STRUCT_POINTER
static Alignment	__BIGGEST_ALIGNMENT__
int	alignof

Method Summary

Modifier and Type	Method	Description
static Alignment	calcElementAlignmentInStruct(Alignment structAlignment, Alignment dataTypeAlignment)	calculate the alignment of a field in a structure - the smalles alignment wins.
long	doAlignment(long unaligned)	AT_X enumn members will override this, it is basically an unsigned fivision by zero so there ip potential to optimize..
static Alignment	fromAlignof(int alignof)
static Alignment	max(Alignment a1, Alignment a2)
static Alignment	min(Alignment a1, Alignment a2)
static Alignment	valueOf(String name)	Returns the enum constant of this type with the specified name.
static Alignment[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

AT_1

public static final Alignment AT_1

AT_2

public static final Alignment AT_2

AT_4

public static final Alignment AT_4

AT_8

public static final Alignment AT_8

AT_16

public static final Alignment AT_16

aarch64 POSIX->signal.h -> ucontext_t

Field Detail

alignof

public final int alignof

__ALIGN_OF_LONG

public static final Alignment __ALIGN_OF_LONG

__ALIGN_OF_STRUCT_LONG

public static final Alignment __ALIGN_OF_STRUCT_LONG

__ALIGN_OF_POINTER

public static final Alignment __ALIGN_OF_POINTER

__ALIGN_OF_STRUCT_POINTER

public static final Alignment __ALIGN_OF_STRUCT_POINTER

__ALIGN_OF_INT8_T

public static final Alignment __ALIGN_OF_INT8_T

__ALIGN_OF_STRUCT_INT8_T

public static final Alignment __ALIGN_OF_STRUCT_INT8_T

__ALIGN_OF_INT16_T

public static final Alignment __ALIGN_OF_INT16_T

__ALIGN_OF_STRUCT_INT16_T

public static final Alignment __ALIGN_OF_STRUCT_INT16_T

__ALIGN_OF_INT32_T

public static final Alignment __ALIGN_OF_INT32_T

__ALIGN_OF_STRUCT_INT32_T

public static final Alignment __ALIGN_OF_STRUCT_INT32_T

__ALIGN_OF_INT64_T

public static final Alignment __ALIGN_OF_INT64_T

__ALIGN_OF_STRUCT_INT64_T

public static final Alignment __ALIGN_OF_STRUCT_INT64_T

__ALIGN_OF_INTPTR_T

public static final Alignment __ALIGN_OF_INTPTR_T

__ALIGN_OF_STRUCT_INTPTR_T

public static final Alignment __ALIGN_OF_STRUCT_INTPTR_T

__ALIGN_OF_FLOAT

public static final Alignment __ALIGN_OF_FLOAT

__ALIGN_OF_STRUCT_FLOAT

public static final Alignment __ALIGN_OF_STRUCT_FLOAT

__ALIGN_OF_DOUBLE

public static final Alignment __ALIGN_OF_DOUBLE

__ALIGN_OF_STRUCT_DOUBLE

public static final Alignment __ALIGN_OF_STRUCT_DOUBLE

__ALIGN_OF_LONG_DOUBLE

public static final Alignment __ALIGN_OF_LONG_DOUBLE

__ALIGN_OF_STRUCT_LONG_DOUBLE

public static final Alignment __ALIGN_OF_STRUCT_LONG_DOUBLE

__BIGGEST_ALIGNMENT__

@Define
public static final Alignment __BIGGEST_ALIGNMENT__

Method Detail

values

public static Alignment[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Alignment c : Alignment.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Alignment valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

max

public static Alignment max(Alignment a1,
                            Alignment a2)

min

public static Alignment min(Alignment a1,
                            Alignment a2)

doAlignment

public long doAlignment(long unaligned)

AT_X enumn members will override this, it is basically an unsigned fivision by zero so there ip potential to optimize..

Parameters:

unaligned -

Returns:

fromAlignof

public static Alignment fromAlignof(int alignof)

calcElementAlignmentInStruct

public static Alignment calcElementAlignmentInStruct(Alignment structAlignment,
                                                     Alignment dataTypeAlignment)

calculate the alignment of a field in a structure - the smalles alignment wins.

Parameters:

structAlignment -

dataTypeAlignment -

Returns: