com.kenai.jffi
Interface Closure.Buffer

Enclosing interface:

Closure

public static interface Closure.Buffer

An interface to the native callback parameter buffer.

Method Summary

long	getAddress(int index) Gets the value of a native pointer parameter.
byte	getByte(int index) Gets the value of an 8 bit integer parameter.
double	getDouble(int index) Gets the value of a 64 bit floating point parameter.
float	getFloat(int index) Gets the value of a 32 bit floating point parameter.
int	getInt(int index) Gets the value of a 32 bit integer parameter.
long	getLong(int index) Gets the value of a 64 bit integer parameter.
short	getShort(int index) Gets the value of a 16 bit integer parameter.
long	getStruct(int index) Gets the address of a struct parameter that is passed by value.
void	setAddressReturn(long address) Sets the closure return value to a native pointer value.
void	setByteReturn(byte value) Sets the closure return value to an 8 bit integer value.
void	setDoubleReturn(double value) Sets the closure return value to a 64 bit floating point value.
void	setFloatReturn(float value) Sets the closure return value to a 32 bit floating point value.
void	setIntReturn(int value) Sets the closure return value to a 32 bit integer value.
void	setLongReturn(long value) Sets the closure return value to a 64 bit integer value.
void	setShortReturn(short value) Sets the closure return value to a 16 bit integer value.
void	setStructReturn(byte[] data, int offset) Sets the closure return value to the contents of a struct
void	setStructReturn(long address) Sets the closure return value to the contents of a struct

Method Detail

getByte

byte getByte(int index)

Gets the value of an 8 bit integer parameter.

Parameters:

index - The parameter index

Returns:

An 8 bit integer value.

getShort

short getShort(int index)

Gets the value of a 16 bit integer parameter.

Parameters:

index - The parameter index

Returns:

A 16 bit integer value.

getInt

int getInt(int index)

Gets the value of a 32 bit integer parameter.

Parameters:

index - The parameter index

Returns:

A 32 bit integer value.

getLong

long getLong(int index)

Gets the value of a 64 bit integer parameter.

Parameters:

index - The parameter index

Returns:

A 64 bit integer value.

getFloat

float getFloat(int index)

Gets the value of a 32 bit floating point parameter.

Parameters:

index - The parameter index

Returns:

A 32 bit floating point value.

getDouble

double getDouble(int index)

Gets the value of a 64 bit floating point parameter.

Parameters:

index - The parameter index

Returns:

A 64 bit floating point value.

getAddress

long getAddress(int index)

Gets the value of a native pointer parameter.

Parameters:

index - The parameter index

Returns:

A native memory address.

getStruct

long getStruct(int index)

Gets the address of a struct parameter that is passed by value.

Parameters:

index - The parameter index

Returns:

A native memory address.

setByteReturn

void setByteReturn(byte value)

Sets the closure return value to an 8 bit integer value.

Parameters:

value - The 8 bit integer value to return from the closure.

setShortReturn

void setShortReturn(short value)

Sets the closure return value to a 16 bit integer value.

Parameters:

value - The 16 bit integer value to return from the closure.

setIntReturn

void setIntReturn(int value)

Sets the closure return value to a 32 bit integer value.

Parameters:

value - The 32 bit integer value to return from the closure.

setLongReturn

void setLongReturn(long value)

Sets the closure return value to a 64 bit integer value.

Parameters:

value - The 64 bit integer value to return from the closure.

setFloatReturn

void setFloatReturn(float value)

Sets the closure return value to a 32 bit floating point value.

Parameters:

value - The 32 bit floating point value to return from the closure.

setDoubleReturn

void setDoubleReturn(double value)

Sets the closure return value to a 64 bit floating point value.

Parameters:

value - The 64 bit floating point value to return from the closure.

setAddressReturn

void setAddressReturn(long address)

Sets the closure return value to a native pointer value.

Parameters:

address - The native pointer value to return from the closure.

setStructReturn

void setStructReturn(long address)

Sets the closure return value to the contents of a struct

Parameters:

address - The address of a native struct to return as a struct value from the closure.

setStructReturn

void setStructReturn(byte[] data,
                     int offset)

Sets the closure return value to the contents of a struct

Parameters:

data - Struct data packed into a byte array to return as a struct value from the closure.

offset - the offset within the byte array to start copying data