org.jruby.ext.ffi.jffi

Class CallbackMemoryIO

java.lang.Object

org.jruby.ext.ffi.MemoryIO

org.jruby.ext.ffi.InvalidMemoryIO

org.jruby.ext.ffi.jffi.CallbackMemoryIO

All Implemented Interfaces:

AllocatedDirectMemoryIO

final class CallbackMemoryIO
extends InvalidMemoryIO
implements AllocatedDirectMemoryIO

An implementation of MemoryIO that throws exceptions on any attempt to read/write the callback memory area (which is code). This also keeps the callback alive via the handle member, as long as this CallbackMemoryIO instance is contained in a valid Callback pointer.

Field Summary

Fields

Modifier and Type	Field and Description
private com.kenai.jffi.Closure.Handle	handle
private java.lang.Object	proc
private boolean	released
private boolean	unmanaged

Fields inherited from class org.jruby.ext.ffi.InvalidMemoryIO

runtime

Fields inherited from class org.jruby.ext.ffi.MemoryIO

address, isDirect

Constructor Summary

Constructors

Constructor and Description
CallbackMemoryIO(Ruby runtime, com.kenai.jffi.Closure.Handle handle)
CallbackMemoryIO(Ruby runtime, com.kenai.jffi.Closure.Handle handle, java.lang.Object proc)

Method Summary

Modifier and Type	Method and Description
void	free()
boolean	isAutoRelease()
void	setAutoRelease(boolean autorelease)

Methods inherited from class org.jruby.ext.ffi.InvalidMemoryIO

array, arrayLength, arrayOffset, asByteBuffer, clear, dup, ex, get, get, get, get, get, get, getAddress, getByte, getDouble, getErrorClass, getFloat, getInt, getLong, getMemoryIO, getNativeLong, getShort, getZeroTerminatedByteArray, getZeroTerminatedByteArray, indexOf, indexOf, order, put, put, put, put, put, put, putAddress, putByte, putDouble, putFloat, putInt, putLong, putMemoryIO, putNativeLong, putShort, putZeroTerminatedByteArray, setMemory, slice, slice

Methods inherited from class org.jruby.ext.ffi.MemoryIO

address, isDirect, isNull

Methods inherited from class java.lang.Object

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

Field Detail

handle

private final com.kenai.jffi.Closure.Handle handle

released

private volatile boolean released

unmanaged

private volatile boolean unmanaged

proc

private java.lang.Object proc

Constructor Detail

CallbackMemoryIO

public CallbackMemoryIO(Ruby runtime,
                        com.kenai.jffi.Closure.Handle handle,
                        java.lang.Object proc)

CallbackMemoryIO

public CallbackMemoryIO(Ruby runtime,
                        com.kenai.jffi.Closure.Handle handle)

Method Detail

free

public void free()

Specified by:

free in interface AllocatedDirectMemoryIO

setAutoRelease

public void setAutoRelease(boolean autorelease)

Specified by:

setAutoRelease in interface AllocatedDirectMemoryIO

isAutoRelease

public boolean isAutoRelease()

Specified by:

isAutoRelease in interface AllocatedDirectMemoryIO