com.barchart.udt
Class EpollUDT

java.lang.Object
  com.barchart.udt.EpollUDT

public class EpollUDT
extends Object

UDT Epoll Manager

See Also:

Epoll, UDT Epoll

Nested Class Summary

static class

EpollUDT.Opt poll interest option mask

Field Summary

protected int	id
protected boolean	isActive
protected static org.slf4j.Logger	log

Constructor Summary

EpollUDT()
allocate poll

Method Summary

void	add(SocketUDT socket, EpollUDT.Opt option) register socket into event processing poll
void	destroy() deallocate poll; called on finalize()
protected void	finalize() deallocate poll
int	id() poll descriptor id
boolean	isActive() poll becomes active after instance creation and inactive after destroy()
void	remove(SocketUDT socket) unregister socket from event processing poll
void	update(SocketUDT socket, EpollUDT.Opt option) update existing poll/socket registration with changed interest
EpollUDT.Opt	verify(SocketUDT socket) report current poll/socket readiness

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static final org.slf4j.Logger log

id

protected final int id

isActive

protected volatile boolean isActive

Constructor Detail

EpollUDT

public EpollUDT()
         throws ExceptionUDT

allocate poll

Throws:

ExceptionUDT

Method Detail

destroy

public void destroy()
             throws ExceptionUDT

deallocate poll; called on finalize()

Throws:

ExceptionUDT

id

public int id()

poll descriptor id

isActive

public boolean isActive()

poll becomes active after instance creation and inactive after destroy()

finalize

protected void finalize()

deallocate poll

NOTE: catch all exceptions; else prevents GC

NOTE: do not leak "this" references; else prevents GC

Overrides:

finalize in class Object

add

public void add(SocketUDT socket,
                EpollUDT.Opt option)
         throws ExceptionUDT

register socket into event processing poll

Throws:

ExceptionUDT

remove

public void remove(SocketUDT socket)
            throws ExceptionUDT

unregister socket from event processing poll

Throws:

ExceptionUDT

update

public void update(SocketUDT socket,
                   EpollUDT.Opt option)
            throws ExceptionUDT

update existing poll/socket registration with changed interest

Throws:

ExceptionUDT

verify

public EpollUDT.Opt verify(SocketUDT socket)
                    throws ExceptionUDT

report current poll/socket readiness

Throws:

ExceptionUDT