Package jnr.ffi.provider

Class InvalidRuntime

java.lang.Object

jnr.ffi.Runtime

jnr.ffi.provider.InvalidRuntime

class InvalidRuntime
extends Runtime

A Runtime subclass that throws exceptions for all methods

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.Throwable	cause
private java.lang.String	message

Constructor Summary

Constructors

Constructor	Description
InvalidRuntime(java.lang.String message, java.lang.Throwable cause)

Method Summary

Modifier and Type	Method	Description
long	addressMask()	Gets the address mask for this runtime
int	addressSize()	Gets the size of an address (e.g.
java.nio.ByteOrder	byteOrder()	Gets the native byte order of the runtime.
Type	findType(NativeType type)	Looks up the runtime-specific type that corresponds to the pseudo-type
Type	findType(TypeAlias type)	Looks up the runtime-specific type that corresponds to the type alias
ClosureManager	getClosureManager()	Gets the native closure manager for this runtime
int	getLastError()	Gets the last native error code.
MemoryManager	getMemoryManager()	Gets the native memory manager for this runtime
boolean	isCompatible(Runtime other)	Indicates whether this Runtime instance is compatible with another Runtime instance.
int	longSize()	Gets the size of a C long integer for this runtime
private java.lang.UnsatisfiedLinkError	newLoadError()
ObjectReferenceManager	newObjectReferenceManager()	Creates a new ObjectReferenceManager
void	setLastError(int error)	Sets the native error code.

Methods inherited from class jnr.ffi.Runtime

getLoadedLibraries, getRuntime, getSystemRuntime

Methods inherited from class java.lang.Object

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

Field Detail

message

private final java.lang.String message

cause

private final java.lang.Throwable cause

Constructor Detail

InvalidRuntime

InvalidRuntime(java.lang.String message,
               java.lang.Throwable cause)

Method Detail

findType

public Type findType(NativeType type)

Description copied from class: Runtime

Looks up the runtime-specific type that corresponds to the pseudo-type

Specified by:

findType in class Runtime

Parameters:

type - The native pseudo-type.

Returns:

A Type instance.

findType

public Type findType(TypeAlias type)

Description copied from class: Runtime

Looks up the runtime-specific type that corresponds to the type alias

Specified by:

findType in class Runtime

Parameters:

type - the type alias.

Returns:

A Type instance

getMemoryManager

public MemoryManager getMemoryManager()

Description copied from class: Runtime

Gets the native memory manager for this runtime

Specified by:

getMemoryManager in class Runtime

Returns:

The MemoryManager of the runtime

getClosureManager

public ClosureManager getClosureManager()

Description copied from class: Runtime

Gets the native closure manager for this runtime

Specified by:

getClosureManager in class Runtime

Returns:

The ClosureManager of the runtime

newObjectReferenceManager

public ObjectReferenceManager newObjectReferenceManager()

Description copied from class: Runtime

Creates a new ObjectReferenceManager

Specified by:

newObjectReferenceManager in class Runtime

Returns:

A new ObjectReferenceManager

getLastError

public int getLastError()

Description copied from class: Runtime

Gets the last native error code.

This returns the errno value that was set at the time of the last native function call.

Specified by:

getLastError in class Runtime

Returns:

The errno value.

setLastError

public void setLastError(int error)

Description copied from class: Runtime

Sets the native error code.

Specified by:

setLastError in class Runtime

Parameters:

error - The value to set errno to.

addressMask

public long addressMask()

Description copied from class: Runtime

Gets the address mask for this runtime

Specified by:

addressMask in class Runtime

Returns:

The address mask for the runtime.

addressSize

public int addressSize()

Description copied from class: Runtime

Gets the size of an address (e.g. a pointer) for this runtime

Specified by:

addressSize in class Runtime

Returns:

The size of an address in bytes.

longSize

public int longSize()

Description copied from class: Runtime

Gets the size of a C long integer for this runtime

Specified by:

longSize in class Runtime

Returns:

The size of a C long integer in bytes.

byteOrder

public java.nio.ByteOrder byteOrder()

Description copied from class: Runtime

Gets the native byte order of the runtime.

Specified by:

byteOrder in class Runtime

Returns:

The byte order of the runtime

isCompatible

public boolean isCompatible(Runtime other)

Description copied from class: Runtime

Indicates whether this Runtime instance is compatible with another Runtime instance.

This is not the same as calling Object.equals(java.lang.Object) - this method only indicates whether or not artifacts from the runtime (e.g. memory addresses) are compatible with artifacts from this one.

This is mostly for internal use.

Specified by:

isCompatible in class Runtime

Parameters:

other - the other runtime to test for compatibility

Returns:

true if the other runtime is compatible with this one

newLoadError

private java.lang.UnsatisfiedLinkError newLoadError()