Package jnr.ffi

Class Platform

java.lang.Object

jnr.ffi.Platform

Direct Known Subclasses:

Platform.Supported, Platform.Unsupported

public abstract class Platform
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Platform.CPU	The supported CPU architectures.
private static class	Platform.Darwin	A Platform subclass representing the MacOS system.
private static class	Platform.Default
(package private) static class	Platform.Linux	A Platform subclass representing the Linux operating system.
static class	Platform.OS	The common names of supported operating systems.
private static class	Platform.SingletonHolder
private static class	Platform.Supported
private static class	Platform.Unsupported
private static class	Platform.Windows	A Platform subclass representing the Windows system.

Field Summary

Fields

Modifier and Type	Field	Description
private int	addressSize
private Platform.CPU	cpu
protected java.util.regex.Pattern	libPattern
private static java.util.Locale	LOCALE
private int	longSize
private Platform.OS	os

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Platform(Platform.OS os)
	Platform(Platform.OS os, Platform.CPU cpu, int addressSize, int longSize, java.lang.String libPattern)

Method Summary

Modifier and Type	Method	Description
int	addressSize()	Deprecated. Use Runtime.addressSize() instead.
private static int	calculateAddressSize(Platform.CPU cpu)
private static Platform.CPU	determineCPU()
private static Platform.OS	determineOS()	Determines the operating system jffi is running on
private static Platform	determinePlatform()
private static Platform	determinePlatform(Platform.OS os)	Determines the Platform that best describes the OS
private static boolean	equalsIgnoreCase(java.lang.String s1, java.lang.String s2)
Platform.CPU	getCPU()	Gets the current processor architecture the JVM is running on.
java.lang.String	getName()	Gets the name of this Platform.
static Platform	getNativePlatform()	Gets the native Platform
Platform.OS	getOS()	Gets the current Operating System.
static Platform	getPlatform()	Deprecated.
java.lang.String	getStandardCLibraryName()	Returns the platform specific standard C library name
boolean	isBSD()
boolean	isUnix()
java.lang.String	locateLibrary(java.lang.String libName, java.util.List<java.lang.String> libraryPath)	Searches through a list of directories for a native library.
int	longSize()	Deprecated. Use Runtime.longSize() instead.
java.lang.String	mapLibraryName(java.lang.String libName)	Maps from a generic library name (e.g.
private static boolean	startsWithIgnoreCase(java.lang.String s1, java.lang.String s2)

Methods inherited from class java.lang.Object

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

Field Detail

LOCALE

private static final java.util.Locale LOCALE

os

private final Platform.OS os

cpu

private final Platform.CPU cpu

addressSize

private final int addressSize

longSize

private final int longSize

libPattern

protected final java.util.regex.Pattern libPattern

Constructor Detail

Platform

public Platform(Platform.OS os,
                Platform.CPU cpu,
                int addressSize,
                int longSize,
                java.lang.String libPattern)

Platform

private Platform(Platform.OS os)

Method Detail

determineOS

private static Platform.OS determineOS()

Determines the operating system jffi is running on

Returns:

An member of the OS enum.

determinePlatform

private static Platform determinePlatform(Platform.OS os)

Determines the Platform that best describes the OS

Parameters:

os - The operating system.

Returns:

An instance of Platform

determinePlatform

private static Platform determinePlatform()

determineCPU

private static Platform.CPU determineCPU()

calculateAddressSize

private static int calculateAddressSize(Platform.CPU cpu)

getNativePlatform

public static Platform getNativePlatform()

Gets the native Platform

Returns:

The current platform.

getPlatform

@Deprecated
public static Platform getPlatform()

Deprecated.

getOS

public final Platform.OS getOS()

Gets the current Operating System.

Returns:

A OS value representing the current Operating System.

getCPU

public final Platform.CPU getCPU()

Gets the current processor architecture the JVM is running on.

Returns:

A CPU value representing the current processor architecture.

isBSD

public final boolean isBSD()

isUnix

public final boolean isUnix()

longSize

public final int longSize()

Deprecated.

Use Runtime.longSize() instead.

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

Returns:

the size of a long in bits

addressSize

public final int addressSize()

Deprecated.

Use Runtime.addressSize() instead.

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

Returns:

the size of a pointer in bits

getName

public java.lang.String getName()

Gets the name of this Platform.

Returns:

The name of this platform.

getStandardCLibraryName

public java.lang.String getStandardCLibraryName()

Returns the platform specific standard C library name

Returns:

The standard C library name

mapLibraryName

public java.lang.String mapLibraryName(java.lang.String libName)

Maps from a generic library name (e.g. "c") to the platform specific library name.

Parameters:

libName - The library name to map

Returns:

The mapped library name.

locateLibrary

public java.lang.String locateLibrary(java.lang.String libName,
                                      java.util.List<java.lang.String> libraryPath)

Searches through a list of directories for a native library.

Parameters:

libName - the base name (e.g. "c") of the library to locate

libraryPath - the list of directories to search

Returns:

the path of the library

startsWithIgnoreCase

private static boolean startsWithIgnoreCase(java.lang.String s1,
                                            java.lang.String s2)

equalsIgnoreCase

private static boolean equalsIgnoreCase(java.lang.String s1,
                                        java.lang.String s2)