org.jruby.ext.ffi

Class Util

java.lang.Object

org.jruby.ext.ffi.Util

public final class Util
extends Object

Method Summary

Methods

Modifier and Type	Method and Description
static void	checkBounds(Ruby runtime, long size, long off, long len)
static <T> T	convertParameter(IRubyObject parameter, Class<T> paramClass) Deprecated.
static double	doubleValue(IRubyObject parameter)
static Type	findType(ThreadContext context, IRubyObject name)
static Type	findType(ThreadContext context, IRubyObject name, IRubyObject typeMap)
static float	floatValue(IRubyObject parameter)
static short	int16Value(IRubyObject parameter)
static int	int32Value(IRubyObject parameter)
static long	int64Value(IRubyObject parameter)
static byte	int8Value(IRubyObject parameter)
static int	intValue(IRubyObject obj, RubyHash enums)
static long	longValue(IRubyObject parameter) Converts characters like 'a' or 't' to an integer value
static IRubyObject	newSigned16(Ruby runtime, short value)
static IRubyObject	newSigned32(Ruby runtime, int value)
static IRubyObject	newSigned64(Ruby runtime, long value)
static IRubyObject	newSigned8(Ruby runtime, byte value)
static IRubyObject	newUnsigned16(Ruby runtime, short value)
static IRubyObject	newUnsigned32(Ruby runtime, int value)
static IRubyObject	newUnsigned64(Ruby runtime, long value)
static IRubyObject	newUnsigned8(Ruby runtime, byte value)
static ByteOrder	parseByteOrder(Ruby runtime, IRubyObject byte_order)
static int	roundUpToPowerOfTwo(int v)
static ByteBuffer	slice(ByteBuffer buf, int offset)
static int	uint16Value(IRubyObject parameter)
static long	uint32Value(IRubyObject parameter)
static long	uint64Value(IRubyObject parameter)
static short	uint8Value(IRubyObject parameter)

Methods inherited from class java.lang.Object

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

Method Detail

int8Value

public static final byte int8Value(IRubyObject parameter)

uint8Value

public static final short uint8Value(IRubyObject parameter)

int16Value

public static final short int16Value(IRubyObject parameter)

uint16Value

public static final int uint16Value(IRubyObject parameter)

int32Value

public static final int int32Value(IRubyObject parameter)

uint32Value

public static final long uint32Value(IRubyObject parameter)

int64Value

public static final long int64Value(IRubyObject parameter)

uint64Value

public static final long uint64Value(IRubyObject parameter)

floatValue

public static final float floatValue(IRubyObject parameter)

doubleValue

public static final double doubleValue(IRubyObject parameter)

longValue

public static final long longValue(IRubyObject parameter)

Converts characters like 'a' or 't' to an integer value

Parameters:

parameter -

Returns:

intValue

public static int intValue(IRubyObject obj,
           RubyHash enums)

newSigned8

public static final IRubyObject newSigned8(Ruby runtime,
                     byte value)

newUnsigned8

public static final IRubyObject newUnsigned8(Ruby runtime,
                       byte value)

newSigned16

public static final IRubyObject newSigned16(Ruby runtime,
                      short value)

newUnsigned16

public static final IRubyObject newUnsigned16(Ruby runtime,
                        short value)

newSigned32

public static final IRubyObject newSigned32(Ruby runtime,
                      int value)

newUnsigned32

public static final IRubyObject newUnsigned32(Ruby runtime,
                        int value)

newSigned64

public static final IRubyObject newSigned64(Ruby runtime,
                      long value)

newUnsigned64

public static final IRubyObject newUnsigned64(Ruby runtime,
                        long value)

convertParameter

@Deprecated
public static final <T> T convertParameter(IRubyObject parameter,
                                Class<T> paramClass)

Deprecated.

slice

public static final ByteBuffer slice(ByteBuffer buf,
               int offset)

checkBounds

public static final void checkBounds(Ruby runtime,
               long size,
               long off,
               long len)

findType

public static Type findType(ThreadContext context,
            IRubyObject name)

findType

public static Type findType(ThreadContext context,
            IRubyObject name,
            IRubyObject typeMap)

parseByteOrder

public static ByteOrder parseByteOrder(Ruby runtime,
                       IRubyObject byte_order)

roundUpToPowerOfTwo

public static int roundUpToPowerOfTwo(int v)