org.jruby.ext.ffi

Class MemoryUtil

java.lang.Object

org.jruby.ext.ffi.MemoryUtil

public final class MemoryUtil
extends java.lang.Object

Constructor Summary

Constructors

Modifier	Constructor and Description
private	MemoryUtil()

Method Summary

Modifier and Type	Method and Description
static IRubyObject	getArrayOfFloat32(Ruby runtime, MemoryIO io, long offset, int count)
static IRubyObject	getArrayOfFloat64(Ruby runtime, MemoryIO io, long offset, int count)
static IRubyObject	getArrayOfSigned16(Ruby runtime, MemoryIO io, long offset, int count)
static IRubyObject	getArrayOfSigned32(Ruby runtime, MemoryIO io, long offset, int count)
static IRubyObject	getArrayOfSigned64(Ruby runtime, MemoryIO io, long offset, int count)
static IRubyObject	getArrayOfSigned8(Ruby runtime, MemoryIO io, long offset, int count)
static IRubyObject	getArrayOfUnsigned16(Ruby runtime, MemoryIO io, long offset, int count)
static IRubyObject	getArrayOfUnsigned32(Ruby runtime, MemoryIO io, long offset, int count)
static IRubyObject	getArrayOfUnsigned64(Ruby runtime, MemoryIO io, long offset, int count)
static IRubyObject	getArrayOfUnsigned8(Ruby runtime, MemoryIO io, long offset, int count)
static RubyString	getTaintedByteString(Ruby runtime, MemoryIO io, long offset, int length) Reads a byte (binary) string from a memory object.
static IRubyObject	getTaintedString(Ruby runtime, MemoryIO io, long offset) Gets a NUL terminated string from a memory object
static IRubyObject	getTaintedString(Ruby runtime, MemoryIO io, long offset, int length) Reads a NUL terminated string from a memory object
static RubyString	newTaintedString(Ruby runtime, byte[] bytes) Creates a ruby string from a byte array and sets the taint flag on it
static void	putArrayOfFloat32(Ruby runtime, MemoryIO io, long offset, RubyArray ary)
static void	putArrayOfFloat64(Ruby runtime, MemoryIO io, long offset, RubyArray ary)
static void	putArrayOfSigned16(Ruby runtime, MemoryIO io, long offset, RubyArray ary)
static void	putArrayOfSigned32(Ruby runtime, MemoryIO io, long offset, RubyArray ary)
static void	putArrayOfSigned64(Ruby runtime, MemoryIO io, long offset, RubyArray ary)
static void	putArrayOfSigned8(Ruby runtime, MemoryIO io, long offset, RubyArray ary)
static void	putArrayOfUnsigned16(Ruby runtime, MemoryIO io, long offset, RubyArray ary)
static void	putArrayOfUnsigned32(Ruby runtime, MemoryIO io, long offset, RubyArray ary)
static void	putArrayOfUnsigned64(Ruby runtime, MemoryIO io, long offset, RubyArray ary)
static void	putArrayOfUnsigned8(Ruby runtime, MemoryIO io, long offset, RubyArray ary)

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryUtil

private MemoryUtil()

Method Detail

getArrayOfSigned8

public static final IRubyObject getArrayOfSigned8(Ruby runtime,
                                                  MemoryIO io,
                                                  long offset,
                                                  int count)

putArrayOfSigned8

public static final void putArrayOfSigned8(Ruby runtime,
                                           MemoryIO io,
                                           long offset,
                                           RubyArray ary)

getArrayOfUnsigned8

public static final IRubyObject getArrayOfUnsigned8(Ruby runtime,
                                                    MemoryIO io,
                                                    long offset,
                                                    int count)

putArrayOfUnsigned8

public static final void putArrayOfUnsigned8(Ruby runtime,
                                             MemoryIO io,
                                             long offset,
                                             RubyArray ary)

getArrayOfSigned16

public static final IRubyObject getArrayOfSigned16(Ruby runtime,
                                                   MemoryIO io,
                                                   long offset,
                                                   int count)

putArrayOfSigned16

public static final void putArrayOfSigned16(Ruby runtime,
                                            MemoryIO io,
                                            long offset,
                                            RubyArray ary)

getArrayOfUnsigned16

public static final IRubyObject getArrayOfUnsigned16(Ruby runtime,
                                                     MemoryIO io,
                                                     long offset,
                                                     int count)

putArrayOfUnsigned16

public static final void putArrayOfUnsigned16(Ruby runtime,
                                              MemoryIO io,
                                              long offset,
                                              RubyArray ary)

getArrayOfSigned32

public static final IRubyObject getArrayOfSigned32(Ruby runtime,
                                                   MemoryIO io,
                                                   long offset,
                                                   int count)

putArrayOfSigned32

public static final void putArrayOfSigned32(Ruby runtime,
                                            MemoryIO io,
                                            long offset,
                                            RubyArray ary)

getArrayOfUnsigned32

public static final IRubyObject getArrayOfUnsigned32(Ruby runtime,
                                                     MemoryIO io,
                                                     long offset,
                                                     int count)

putArrayOfUnsigned32

public static final void putArrayOfUnsigned32(Ruby runtime,
                                              MemoryIO io,
                                              long offset,
                                              RubyArray ary)

getArrayOfSigned64

public static final IRubyObject getArrayOfSigned64(Ruby runtime,
                                                   MemoryIO io,
                                                   long offset,
                                                   int count)

putArrayOfSigned64

public static final void putArrayOfSigned64(Ruby runtime,
                                            MemoryIO io,
                                            long offset,
                                            RubyArray ary)

getArrayOfUnsigned64

public static final IRubyObject getArrayOfUnsigned64(Ruby runtime,
                                                     MemoryIO io,
                                                     long offset,
                                                     int count)

putArrayOfUnsigned64

public static final void putArrayOfUnsigned64(Ruby runtime,
                                              MemoryIO io,
                                              long offset,
                                              RubyArray ary)

getArrayOfFloat32

public static final IRubyObject getArrayOfFloat32(Ruby runtime,
                                                  MemoryIO io,
                                                  long offset,
                                                  int count)

putArrayOfFloat32

public static final void putArrayOfFloat32(Ruby runtime,
                                           MemoryIO io,
                                           long offset,
                                           RubyArray ary)

getArrayOfFloat64

public static final IRubyObject getArrayOfFloat64(Ruby runtime,
                                                  MemoryIO io,
                                                  long offset,
                                                  int count)

putArrayOfFloat64

public static final void putArrayOfFloat64(Ruby runtime,
                                           MemoryIO io,
                                           long offset,
                                           RubyArray ary)

newTaintedString

public static final RubyString newTaintedString(Ruby runtime,
                                                byte[] bytes)

Creates a ruby string from a byte array and sets the taint flag on it

Parameters:

runtime - The ruby runtime

bytes - The array to make into a ruby string.

Returns:

A ruby string.

getTaintedByteString

public static final RubyString getTaintedByteString(Ruby runtime,
                                                    MemoryIO io,
                                                    long offset,
                                                    int length)

Reads a byte (binary) string from a memory object.

Parameters:

runtime - The ruby runtime

io - The memory object to read the string from

offset - The offset within the memory object to start reading

length - The number of bytes to read

Returns:

A ruby string

getTaintedString

public static final IRubyObject getTaintedString(Ruby runtime,
                                                 MemoryIO io,
                                                 long offset)

Gets a NUL terminated string from a memory object

Parameters:

runtime - The ruby runtime

io - The memory object to read the string from

offset - The offset within the memory object to start reading

Returns:

A ruby string

getTaintedString

public static final IRubyObject getTaintedString(Ruby runtime,
                                                 MemoryIO io,
                                                 long offset,
                                                 int length)

Reads a NUL terminated string from a memory object

Parameters:

runtime - The ruby runtime

io - The memory object to read the string from

offset - The offset within the memory object to start reading

maxlen - The maximum number of bytes to read

Returns:

A ruby string