CODEX_Events::CloseHandler Class Reference

Abstract Activity for handling CloseEvent%s. More...

#include <Activity.h>

Inheritance diagram for CODEX_Events::CloseHandler:

[legend]Collaboration diagram for CODEX_Events::CloseHandler:

[legend]List of all members.

Public Member Functions
	CloseHandler ()
	Create a CloseHandler.
virtual	~CloseHandler ()
	Virtual destructor.
virtual bool	handler (CloseEvent &event)=0
	Abstract handler for CloseEvent%s.
virtual bool	handler (EventAck &event)
	The base class is responsible for handling acknowledgements, which are relevant to whether the Activity is ready for deletion.
Protected Member Functions
void	sendEvent (EventBase *event, Activity *source, bool failure=false)
void	enableTerminate ()
	This method should be called when an Activity has received a CloseEvent or other indicator that it is no longer needed.
Protected Attributes
DeadPileType &	m_deadPile
	The pile of Activity%s to be garbage-collected.
QType &	m_queue
	The event queue.

---

Detailed Description

Abstract Activity for handling CloseEvent%s.

This class provides type differentiation for a CloseEvent handler. It inherits Activity as a virtual base class so that a concrete class inheriting multiple abstract type-specific bases will have only one copy of type Activity. This eliminates ambiguity with regards to event counts and object deletion. It also allows us to use a default constructor, since the arguments forwarded to Activity::Activity() will never actually be passed.

Definition at line 153 of file Activity.h.

---

Member Function Documentation

void Activity::enableTerminate (   )  [protected, inherited]

This method should be called when an Activity has received a CloseEvent or other indicator that it is no longer needed. Actual termination will not occur until there are no remaining events outstanding (unacknowledged). Definition at line 63 of file Activity.cc. Referenced by CODEX_KeyService::ClientActivity::handler(), and CODEX_KeyService::ClientActivity::processRequest().

bool Activity::handler (  EventAck &  event  )  [virtual, inherited]

The base class is responsible for handling acknowledgements, which are relevant to whether the Activity is ready for deletion. If a derived class reimpliments this method, it must call this version explicitly. Definition at line 39 of file Activity.cc. Referenced by CODEX_Events::EventAck::handle(), and CODEX_KeyService::ClientActivity::handler().

void Activity::sendEvent (  EventBase *  event, Activity *  source, bool  failure = false )  [protected, inherited]

Parameters: event  New event to be added to the queue source  Source of event just handled, to which an acknowledgement should be sent. This is accessed by the method EventBase::source(). failure  Is the acknowledgment a negative ack? Definition at line 49 of file Activity.cc. References CODEX_Events::Activity::m_queue. Referenced by CODEX_APSS::InitActivity::addEvidence(), CODEX_APSS::MessageDeliverer::broadcast(), CODEX_KeyService::ClientActivity::close(), CODEX_Server::UnicastRequestHandler::handler(), CODEX_Server::ShareLabelChallengeHandler::handler(), CODEX_Server::ServerResponseHandler::handler(), CODEX_Server::QuorumBuilderAct::handler(), CODEX_APSS::MessageVerifier::handler(), CODEX_APSS::MessageProcessor::handler(), CODEX_APSS::InitActivity::handler(), CODEX_KeyService::DelegateResponseVerifier::handler(), CODEX_KeyService::DelegateRequestDistributor::handler(), CODEX_KeyService::ClientResponseSigner::handler(), CODEX_KeyService::ClientMessageVerifier::handler(), CODEX_KeyService::ClientMessageSigner::handler(), CODEX_KeyService::ClientMessageAbsorber::handler(), CODEX_KeyService::ClientActivity::handler(), CODEX_Server::BroadcastRequestHandler::handler(), CODEX_KeyService::VerifyWriteCallback::operator()(), CODEX_KeyService::SignWriteCallback::operator()(), CODEX_KeyService::SignReadCallback::operator()(), CODEX_KeyService::SignCreateCallback::operator()(), CODEX_APSS::MessageParser::operator()(), CODEX_KeyService::ClientWriteCallback::operator()(), CODEX_KeyService::ClientResponseParser::operator()(), CODEX_KeyService::ClientReadCallback::operator()(), CODEX_KeyService::ClientMessageParser::operator()(), CODEX_KeyService::ClientCreateCallback::operator()(), CODEX_KeyService::ClientActivity::processRequest(), CODEX_Server::QuorumBuilderAct::QuorumBuilderAct(), CODEX_APSS::MessageDeliverer::sendTo(), CODEX_Server::ShareLabelChallengeHandler::ShareLabelChallengeHandler(), and CODEX_APSS::TriggerActivity::TriggerActivity().

---

The documentation for this class was generated from the following files:

• Activity.h
• Activity.cc

---