com.jniwrapper
Class PlatformContext

java.lang.Object
  com.jniwrapper.PlatformContext

public final class PlatformContext
extends java.lang.Object

Provides information on platform-dependent type sizes, etc.

Method Summary

static double	convertCDoubleToDouble(byte[] arr) Converts a native byte representation of a double precision floating-point value to a double.
static double	convertCFloatToDouble(byte[] arr) Converts a native byte representation of a single precision floating-point value to a double.
static double	convertCLongDoubleToDouble(byte[] arr) Converts a native byte representation of a long double precision floating-point value to a double.
static byte[]	convertDoubleToCDouble(double d) Converts a double precision floating-point value to platform native byte representation.
static byte[]	convertDoubleToCFloat(double f) Converts a single precision floating-point value to platform native byte representation.
static byte[]	convertDoubleToCLongDouble(double d) Converts a double precision floating-point value to platform native byte representation of long double type.
static int	getAlignedParameterLength(int paramLen) Returns the length of the aligned parameter on the stack.
static int	getAlignedParameterLength(Parameter p) Returns the length of the aligned parameter on the stack.
static int	getAlignedPointerLength() Returns the length of the aligned pointer on the stack.
static int	getBoolLength() Returns a bool type length (sizeof(bool)).
static int	getCharLength() Returns a character length (sizeof(char)).
static byte	getDefaultCallingConvention() Returns platform default calling conventions for libraries.
static short	getDefaultStructureAlignment() Returns platform required structure alignment.
static int	getDoubleLength() Returns a double precision floating-point value length (sizeof(double)).
static int	getFloatLength() Returns a single precision floating-point value length (sizeof(float)).
static int	getIntLength() Returns an integer length (sizeof(int)).
static int	getLongDoubleLength() Returns a long double precision floating-point value length (sizeof(long double)).
static int	getLongLength() Returns a long integer length (sizeof(long)).
static short	getParameterAlignment() Returns platform default parameter alignment for function calls.
static int	getPointerLength() Returns a pointer length (sizeof(void*)).
static int	getShortLength() Returns a short integer length (sizeof(short)).
static int	getWideCharLength() Returns a wide character length (sizeof(wchar_t)).
static boolean	isAIX()
static boolean	isLeopard()
static boolean	isLinux()
static boolean	isLion()
static boolean	isLittleEndian() Returns true if the underlying platform byte order is little endian, that is it stores the least significant byte of a value first.
static boolean	isMacNewerThanTigerButOlderThanMavericks()
static boolean	isMacOS()
static boolean	isMountainLion()
static boolean	isPPC()
static boolean	isPPC64()
static boolean	isSnowLeopard()
static boolean	isSparc()
static boolean	isSparc64()
static boolean	isSunOS()
static boolean	isTiger()
static boolean	isUnicode()
static boolean	isWindows()
static boolean	isX32()
static boolean	isX64()
static int	strlen(long ptrToString)
static int	wcslen(long ptrToWideString)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isWindows

public static boolean isWindows()

isLinux

public static boolean isLinux()

isMacOS

public static boolean isMacOS()

isSunOS

public static boolean isSunOS()

isAIX

public static boolean isAIX()

isX32

public static boolean isX32()

isX64

public static boolean isX64()

isPPC

public static boolean isPPC()

isPPC64

public static boolean isPPC64()

isSparc

public static boolean isSparc()

isSparc64

public static boolean isSparc64()

getCharLength

public static int getCharLength()

Returns a character length (sizeof(char)).

getWideCharLength

public static int getWideCharLength()

Returns a wide character length (sizeof(wchar_t)).

getBoolLength

public static int getBoolLength()

Returns a bool type length (sizeof(bool)).

getPointerLength

public static int getPointerLength()

Returns a pointer length (sizeof(void*)).

getShortLength

public static int getShortLength()

Returns a short integer length (sizeof(short)).

getIntLength

public static int getIntLength()

Returns an integer length (sizeof(int)).

getLongLength

public static int getLongLength()

Returns a long integer length (sizeof(long)).

getFloatLength

public static int getFloatLength()

Returns a single precision floating-point value length (sizeof(float)).

getDoubleLength

public static int getDoubleLength()

Returns a double precision floating-point value length (sizeof(double)).

getLongDoubleLength

public static int getLongDoubleLength()

Returns a long double precision floating-point value length (sizeof(long double)). On certain platforms long double can be the same as double.

isLittleEndian

public static boolean isLittleEndian()

Returns true if the underlying platform byte order is little endian, that is it stores the least significant byte of a value first.

getParameterAlignment

public static short getParameterAlignment()

Returns platform default parameter alignment for function calls.

getDefaultStructureAlignment

public static short getDefaultStructureAlignment()

Returns platform required structure alignment. If alignment is not required, returns 1 meaning no alignment is necessary. Some libraries may be compiled with a different structure alignment.

getDefaultCallingConvention

public static byte getDefaultCallingConvention()

Returns platform default calling conventions for libraries.

convertDoubleToCFloat

public static byte[] convertDoubleToCFloat(double f)

Converts a single precision floating-point value to platform native byte representation.

convertCFloatToDouble

public static double convertCFloatToDouble(byte[] arr)

Converts a native byte representation of a single precision floating-point value to a double.

convertDoubleToCDouble

public static byte[] convertDoubleToCDouble(double d)

Converts a double precision floating-point value to platform native byte representation.

convertCDoubleToDouble

public static double convertCDoubleToDouble(byte[] arr)

Converts a native byte representation of a double precision floating-point value to a double.

convertDoubleToCLongDouble

public static byte[] convertDoubleToCLongDouble(double d)

Converts a double precision floating-point value to platform native byte representation of long double type.

convertCLongDoubleToDouble

public static double convertCLongDoubleToDouble(byte[] arr)

Converts a native byte representation of a long double precision floating-point value to a double. This conversion may lead to value loss if java double does not have enough precision.

strlen

public static int strlen(long ptrToString)

wcslen

public static int wcslen(long ptrToWideString)

isUnicode

public static boolean isUnicode()

getAlignedPointerLength

public static int getAlignedPointerLength()

Returns the length of the aligned pointer on the stack.

getAlignedParameterLength

public static int getAlignedParameterLength(int paramLen)

Returns the length of the aligned parameter on the stack.

Parameters:

paramLen - unaligned length of the parameter.

getAlignedParameterLength

public static int getAlignedParameterLength(Parameter p)

Returns the length of the aligned parameter on the stack.

Parameters:

p - the parameter.

isTiger

public static boolean isTiger()

isLeopard

public static boolean isLeopard()

isSnowLeopard

public static boolean isSnowLeopard()

isLion

public static boolean isLion()

isMountainLion

public static boolean isMountainLion()

isMacNewerThanTigerButOlderThanMavericks

public static boolean isMacNewerThanTigerButOlderThanMavericks()