Package com.sun.jna.platform.mac

Class IOReturnException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

com.sun.jna.platform.mac.IOReturnException

All Implemented Interfaces:

Serializable

public class IOReturnException
extends RuntimeException

Exception encapsulating IOReturn I/O Kit Error Return Values, defined as kern_return_t values in IOKit/IOReturn.h

The return value supplies information in three separate bit fields: the high 6 bits specify the system in which the error occurred, the next 12 bits specify the subsystem, and the final 14 bits specify the error code itself.

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor	Description
	IOReturnException(int kr)	New exception from kern_return_t
protected	IOReturnException(int kr, String msg)	New exception from kern_return_t with specified message

Method Summary

Modifier and Type	Method	Description
static int	getCode(int kr)	The low 14 bits of the return value encode the return code.
int	getIOReturnCode()
static int	getSubSystem(int kr)	The middle 12 bits of the return value encode the subsystem.
static int	getSystem(int kr)	The high 6 bits of the return value encode the system.

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

IOReturnException

public IOReturnException(int kr)

New exception from kern_return_t

Parameters:

kr - The return value

IOReturnException

protected IOReturnException(int kr,
                            String msg)

New exception from kern_return_t with specified message

Parameters:

kr - The return value

msg - The exception message

Method Detail

getIOReturnCode

public int getIOReturnCode()

Returns:

the IOReturn code

getSystem

public static int getSystem(int kr)

The high 6 bits of the return value encode the system.

Parameters:

kr - The return value

Returns:

the system value

getSubSystem

public static int getSubSystem(int kr)

The middle 12 bits of the return value encode the subsystem.

Parameters:

kr - The return value

Returns:

the subsystem value

getCode

public static int getCode(int kr)

The low 14 bits of the return value encode the return code.

Parameters:

kr - The return value

Returns:

the return code