org.jruby.ext.ffi

Class Platform

java.lang.Object

org.jruby.ext.ffi.Platform

public class Platform
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Platform.CPU_TYPE
static class	Platform.OS_TYPE

Field Summary

Fields

Modifier and Type	Field and Description
protected int	addressSize
static int	BIG_ENDIAN
static int	BYTE_ORDER
static Platform.CPU_TYPE	CPU
static String	LIBC
protected Pattern	libPattern
static String	LIBPREFIX
static String	LIBSUFFIX
static int	LITTLE_ENDIAN
protected int	longSize
static String	NAME
static Platform.OS_TYPE	OS

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Platform(Platform.OS_TYPE os)

Method Summary

Methods

Modifier and Type	Method and Description
long	addressMask() Gets the 32/64bit mask of a C address/pointer on the native platform.
int	addressSize() Gets the size of a C address/pointer on the native platform.
static IRubyObject	bsd_p(ThreadContext context, IRubyObject recv)
static void	createPlatformModule(Ruby runtime, RubyModule ffi)
Platform.CPU_TYPE	getCPU() Gets the current processor architecture the JVM is running on.
int	getJavaMajorVersion() Gets the version of the Java Virtual Machine (JVM) jffi is running on.
String	getName() Gets the name of this Platform.
Platform.OS_TYPE	getOS() Gets the current Operating System.
static Platform	getPlatform() Gets the current Platform
static String	getProperty(String property, String defValue) An extension over System.getProperty method.
boolean	isBSD()
boolean	isSupported()
boolean	isUnix()
static IRubyObject	linux_p(ThreadContext context, IRubyObject recv)
int	longSize() Gets the size of a C 'long' on the native platform.
static IRubyObject	mac_p(ThreadContext context, IRubyObject recv)
String	mapLibraryName(String libName)
static IRubyObject	solaris_p(ThreadContext context, IRubyObject recv)
static IRubyObject	unix_p(ThreadContext context, IRubyObject recv)
static IRubyObject	windows_p(ThreadContext context, IRubyObject recv)

Methods inherited from class java.lang.Object

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

Field Detail

CPU

public static final Platform.CPU_TYPE CPU

OS

public static final Platform.OS_TYPE OS

NAME

public static final String NAME

LIBPREFIX

public static final String LIBPREFIX

LIBSUFFIX

public static final String LIBSUFFIX

LIBC

public static final String LIBC

BIG_ENDIAN

public static final int BIG_ENDIAN

See Also:

Constant Field Values

LITTLE_ENDIAN

public static final int LITTLE_ENDIAN

See Also:

Constant Field Values

BYTE_ORDER

public static final int BYTE_ORDER

addressSize

protected final int addressSize

longSize

protected final int longSize

libPattern

protected final Pattern libPattern

Constructor Detail

Platform

protected Platform(Platform.OS_TYPE os)

Method Detail

getPlatform

public static final Platform getPlatform()

Gets the current Platform

Returns:

The current platform.

getOS

public final Platform.OS_TYPE getOS()

Gets the current Operating System.

Returns:

A OS value representing the current Operating System.

getCPU

public final Platform.CPU_TYPE getCPU()

Gets the current processor architecture the JVM is running on.

Returns:

A CPU value representing the current processor architecture.

getJavaMajorVersion

public final int getJavaMajorVersion()

Gets the version of the Java Virtual Machine (JVM) jffi is running on.

Returns:

A number representing the java version. e.g. 5 for java 1.5, 6 for java 1.6

isBSD

public final boolean isBSD()

isUnix

public final boolean isUnix()

isSupported

public final boolean isSupported()

createPlatformModule

public static void createPlatformModule(Ruby runtime,
                        RubyModule ffi)

windows_p

public static IRubyObject windows_p(ThreadContext context,
                    IRubyObject recv)

mac_p

public static IRubyObject mac_p(ThreadContext context,
                IRubyObject recv)

unix_p

public static IRubyObject unix_p(ThreadContext context,
                 IRubyObject recv)

bsd_p

public static IRubyObject bsd_p(ThreadContext context,
                IRubyObject recv)

linux_p

public static IRubyObject linux_p(ThreadContext context,
                  IRubyObject recv)

solaris_p

public static IRubyObject solaris_p(ThreadContext context,
                    IRubyObject recv)

getProperty

public static String getProperty(String property,
                 String defValue)

An extension over System.getProperty method. Handles security restrictions, and returns the default value if the access to the property is restricted.

Parameters:

property - The system property name.

defValue - The default value.

Returns:

The value of the system property, or the default value.

longSize

public final int longSize()

Gets the size of a C 'long' on the native platform.

Returns:

the size of a long in bits

addressSize

public final int addressSize()

Gets the size of a C address/pointer on the native platform.

Returns:

the size of a pointer in bits

addressMask

public final long addressMask()

Gets the 32/64bit mask of a C address/pointer on the native platform.

Returns:

the size of a pointer in bits

getName

public String getName()

Gets the name of this Platform.

Returns:

The name of this platform.

mapLibraryName

public String mapLibraryName(String libName)