jnr.ffi.provider.jffi
Class ByteBufferMemoryIO

java.lang.Object
  jnr.ffi.Pointer
      jnr.ffi.provider.AbstractMemoryIO
          jnr.ffi.provider.AbstractBufferMemoryIO
              jnr.ffi.provider.jffi.ByteBufferMemoryIO

public class ByteBufferMemoryIO
extends AbstractBufferMemoryIO

Field Summary

Fields inherited from class jnr.ffi.provider.AbstractBufferMemoryIO

buffer

Constructor Summary

ByteBufferMemoryIO(NativeRuntime runtime, java.nio.ByteBuffer buffer)

Method Summary

long	address() Gets the native address of this memory object (optional operation).
Pointer	getPointer(long offset) Reads an Pointer value at the given offset.
Pointer	getPointer(long offset, long size) Reads an Pointer value at the given offset.
void	putPointer(long offset, Pointer value) Writes a Pointer value at the given offset.

Methods inherited from class jnr.ffi.provider.AbstractBufferMemoryIO

array, arrayLength, arrayOffset, get, get, get, get, get, get, getByte, getByteBuffer, getDouble, getFloat, getInt, getLongLong, getShort, getString, getString, getString, hasArray, indexOf, isDirect, put, put, put, put, put, put, putByte, putDouble, putFloat, putInt, putLongLong, putShort, putString, putString, setMemory, size

Methods inherited from class jnr.ffi.provider.AbstractMemoryIO

checkBounds, checkBounds, getAddress, getInt, getLong, getNativeLong, getRuntime, indexOf, putAddress, putAddress, putInt, putLong, putNativeLong, slice, slice, transferFrom, transferTo

Methods inherited from class jnr.ffi.Pointer

newIntPointer, wrap, wrap, wrap

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteBufferMemoryIO

public ByteBufferMemoryIO(NativeRuntime runtime,
                          java.nio.ByteBuffer buffer)

Method Detail

getPointer

public Pointer getPointer(long offset)

Description copied from class: Pointer

Reads an Pointer value at the given offset.

Specified by:

getPointer in class Pointer

Parameters:

offset - the offset from the start of the memory this Pointer represents at which the value will be read.

Returns:

the Pointer value read from memory.

getPointer

public Pointer getPointer(long offset,
                          long size)

Description copied from class: Pointer

Reads an Pointer value at the given offset.

Specified by:

getPointer in class Pointer

Parameters:

offset - the offset from the start of the memory this Pointer represents at which the value will be read.

size - the maximum size of the memory location the returned Pointer represents.

Returns:

the Pointer value read from memory.

putPointer

public void putPointer(long offset,
                       Pointer value)

Description copied from class: Pointer

Writes a Pointer value at the given offset.

Specified by:

putPointer in class Pointer

Parameters:

offset - The offset from the start of the memory this Pointer represents at which the value will be written.

value - the Pointer value to be written to memory.

address

public long address()

Description copied from class: Pointer

Gets the native address of this memory object (optional operation).

Specified by:

address in class Pointer

Returns:

the native address of this memory object. If this object is not a native memory address, an address of zero is returned.