iterates services in ServiceGroup, starting adaptation launchers More...

#include <Iterator.h>

Inheritance diagram for Adaptation::Iterator:

Collaboration diagram for Adaptation::Iterator:

Public Types
typedef CbcPointer< AsyncJob >	Pointer

Public Member Functions
	Iterator (Http::Message virginHeader, HttpRequest virginCause, const AccessLogEntryPointer &, const Adaptation::ServiceGroupPointer &aGroup)

	~Iterator () override

void	noteInitiatorAborted () override

void	noteAdaptationAnswer (const Answer &answer) override

void	initiator (const CbcPointer< Initiator > &i)
	sets initiator

bool	canBeCalled (AsyncCall &call) const
	whether we can be called

void	callStart (AsyncCall &call)

virtual void	callEnd ()
	called right after the called job method

virtual void	callException (const std::exception &e)
	called when the job throws during an async call

void	handleStopRequest ()
	process external request to terminate now (i.e. during this async call)

virtual void *	toCbdata ()=0

virtual void	noteAdaptationAclCheckDone (Adaptation::ServiceGroupPointer group)

Static Public Member Functions
static void	Start (const Pointer &job)

static void	RegisterWithCacheManager ()

Public Attributes
const InstanceId< AsyncJob >	id
	job identifier

Protected Member Functions
void	start () override
	called by AsyncStart; do not call directly

bool	doneAll () const override
	whether positive goal has been reached

void	swanSong () override

void	step ()
	launches adaptation for the service selected by the plan

bool	updatePlan (bool adopt)
	replace the current group and plan with service-proposed ones if needed

ServiceFilter	filter () const
	creates service filter for the current step

void	handleAdaptedHeader (Http::Message *msg)

void	handleAdaptationBlock (const Answer &answer)

void	handleAdaptationError (bool final)

void	sendAnswer (const Answer &answer)

void	tellQueryAborted (bool final)

void	clearInitiator ()

const char *	status () const override
	internal cleanup; do not call directly

void	deleteThis (const char *aReason)

void	mustStop (const char *aReason)

bool	done () const
	the job is destroyed in callEnd() when done()

CbcPointer< Initiate >	initiateAdaptation (Initiate *x)
	< starts freshly created initiate and returns a safe pointer to it

void	clearAdaptation (CbcPointer< Initiate > &x)
	clears the pointer (does not call announceInitiatorAbort)

void	announceInitiatorAbort (CbcPointer< Initiate > &x)
	inform the transaction about abnormal termination and clear the pointer

bool	initiated (const CbcPointer< AsyncJob > &job) const
	Must(initiated(initiate)) instead of Must(initiate.set()), for clarity.

Static Protected Member Functions
static void	ReportAllJobs (StoreEntry *)
	writes a cache manager report about all jobs existing in this worker

Protected Attributes
ServiceGroupPointer	theGroup
	the service group we are iterating

ServicePlan	thePlan
	which services to use and in what order

Http::Message *	theMsg
	the message being adapted (virgin for each step)

HttpRequest *	theCause
	the cause of the original virgin message

AccessLogEntryPointer	al
	info for the future access.log entry

CbcPointer< Adaptation::Initiate >	theLauncher
	current transaction launcher

int	iterations
	number of steps initiated

bool	adapted
	whether the virgin message has been replaced

CbcPointer< Initiator >	theInitiator

const char *	stopReason
	reason for forcing done() to be true

const char *	typeName
	kid (leaf) class name, for debugging

AsyncCall::Pointer	inCall
	the asynchronous call being handled, if any

bool	started_ = false
	Start() has finished successfully.

bool	swanSang_ = false
	swanSong() was called

Private Member Functions
	CBDATA_CHILD (Iterator)

virtual void	finalizedInCbdataChild ()=0
	hack: ensure CBDATA_CHILD() after a toCbdata()-defining CBDATA_INTERMEDIATE()

Detailed Description

Definition at line 31 of file Iterator.h.

Member Typedef Documentation

◆ Pointer

typedef CbcPointer<AsyncJob> AsyncJob::Pointer

inherited

Definition at line 34 of file AsyncJob.h.

Constructor & Destructor Documentation

◆ Iterator()

Adaptation::Iterator::Iterator	(	Http::Message *	virginHeader,
		HttpRequest *	virginCause,
		const AccessLogEntryPointer &	alp,
		const Adaptation::ServiceGroupPointer &	aGroup
	)

Definition at line 22 of file Iterator.cc.

References HTTPMSGLOCK(), theCause, and theMsg.

◆ ~Iterator()

Adaptation::Iterator::~Iterator ( )

override

Definition at line 43 of file Iterator.cc.

References assert, and HTTPMSGUNLOCK().

Member Function Documentation

◆ announceInitiatorAbort()

void Adaptation::Initiator::announceInitiatorAbort ( CbcPointer< Initiate > & x )

protectedinherited

Definition at line 38 of file Initiator.cc.

References CallJobHere.

Referenced by ClientHttpRequest::~ClientHttpRequest(), and Client::cleanAdaptation().

◆ callEnd()

void AsyncJob::callEnd ( )

virtualinherited

called right after the called job method

Reimplemented in Adaptation::Icap::Xaction.

Definition at line 152 of file AsyncJob.cc.

References assert, AsyncCall::debugLevel, debugs, AsyncCall::debugSection, AsyncJob::done(), AsyncJob::inCall, AsyncJob::started_, AsyncJob::status(), AsyncJob::swanSang_, AsyncJob::swanSong(), and AsyncJob::typeName.

Referenced by Adaptation::Icap::Xaction::callEnd(), and AsyncJob::deleteThis().

◆ callException()

void AsyncJob::callException ( const std::exception & e )

virtualinherited

Reimplemented in ConnStateData, ClientHttpRequest, Rock::Rebuild, Adaptation::Icap::ModXact, Adaptation::Icap::ServiceRep, Adaptation::Icap::Xaction, Ipc::Forwarder, Ipc::Inquirer, and Ftp::Server.

Definition at line 143 of file AsyncJob.cc.

References cbdataReferenceValid(), debugs, Must, AsyncJob::mustStop(), and CbdataParent::toCbdata().

Referenced by ConnStateData::callException(), Adaptation::Icap::Xaction::callException(), Ipc::Forwarder::callException(), Ipc::Inquirer::callException(), and Ftp::Server::callException().

◆ callStart()

void AsyncJob::callStart ( AsyncCall & call )

inherited

called just before the called method

Definition at line 130 of file AsyncJob.cc.

References cbdataReferenceValid(), AsyncCall::debugLevel, debugs, AsyncCall::debugSection, AsyncJob::inCall, Must, AsyncJob::status(), CbdataParent::toCbdata(), and AsyncJob::typeName.

◆ canBeCalled()

bool AsyncJob::canBeCalled ( AsyncCall & call ) const

inherited

Definition at line 117 of file AsyncJob.cc.

References AsyncCall::cancel(), debugs, and AsyncJob::inCall.

◆ CBDATA_CHILD()

Adaptation::Iterator::CBDATA_CHILD ( Iterator )

private

◆ clearAdaptation()

void Adaptation::Initiator::clearAdaptation ( CbcPointer< Initiate > & x )

protectedinherited

Definition at line 32 of file Initiator.cc.

References CbcPointer< Cbc >::clear().

Referenced by ClientHttpRequest::handleAdaptedHeader(), ClientHttpRequest::noteAdaptationAnswer(), and Client::noteAdaptationAnswer().

◆ clearInitiator()

void Adaptation::Initiate::clearInitiator ( )

protectedinherited

Definition at line 74 of file Initiate.cc.

◆ deleteThis()

void AsyncJob::deleteThis ( const char * aReason )

protectedinherited

Definition at line 65 of file AsyncJob.cc.

References asyncCall(), AsyncJob::callEnd(), debugs, AsyncJob::deleteThis(), AsyncJob::inCall, JobMemFun(), Must, AsyncJob::stopReason, and AsyncJob::typeName.

Referenced by ConnStateData::connStateClosed(), and AsyncJob::deleteThis().

◆ done()

bool AsyncJob::done ( ) const

protectedinherited

Definition at line 106 of file AsyncJob.cc.

References AsyncJob::doneAll(), and AsyncJob::stopReason.

Referenced by AsyncJob::callEnd(), HappyConnOpener::checkForNewConnection(), Downloader::downloadFinished(), and HappyConnOpener::maybeOpenPrimeConnection().

◆ doneAll()

bool Adaptation::Iterator::doneAll ( ) const

overrideprotectedvirtual

Reimplemented from AsyncJob.

Definition at line 210 of file Iterator.cc.

References AsyncJob::doneAll().

◆ filter()

Adaptation::ServiceFilter Adaptation::Iterator::filter ( ) const

protected

Definition at line 266 of file Iterator.cc.

References Adaptation::methodNone, Adaptation::methodReqmod, Adaptation::methodRespmod, and Must.

◆ finalizedInCbdataChild()

virtual void CbdataParent::finalizedInCbdataChild ( )

privatepure virtualinherited

◆ handleAdaptationBlock()

void Adaptation::Iterator::handleAdaptationBlock ( const Answer & answer )

protected

Definition at line 166 of file Iterator.cc.

References debugs.

◆ handleAdaptationError()

void Adaptation::Iterator::handleAdaptationError ( bool final )

protected

Definition at line 175 of file Iterator.cc.

References debugs, Adaptation::Answer::Forward(), and Must.

◆ handleAdaptedHeader()

void Adaptation::Iterator::handleAdaptedHeader ( Http::Message * msg )

protected

Definition at line 133 of file Iterator.cc.

References debugs, HTTPMSGLOCK(), HTTPMSGUNLOCK(), and Must.

◆ handleStopRequest()

void AsyncJob::handleStopRequest ( )

inlineinherited

Definition at line 73 of file AsyncJob.h.

References AsyncJob::mustStop().

◆ initiateAdaptation()

CbcPointer< Adaptation::Initiate > Adaptation::Initiator::initiateAdaptation ( Initiate * x )

protectedinherited

Definition at line 23 of file Initiator.cc.

References Adaptation::Initiate::initiator().

Referenced by ClientHttpRequest::startAdaptation(), and Client::startAdaptation().

◆ initiated()

bool Adaptation::Initiator::initiated ( const CbcPointer< AsyncJob > & job ) const

inlineprotectedinherited

Definition at line 52 of file Initiator.h.

References CbcPointer< Cbc >::set().

Referenced by ClientHttpRequest::startAdaptation(), and Client::startAdaptation().

◆ initiator()

void Adaptation::Initiate::initiator ( const CbcPointer< Initiator > & i )

inherited

Definition at line 54 of file Initiate.cc.

References Must, and CbcPointer< Cbc >::valid().

Referenced by Adaptation::Initiator::initiateAdaptation().

◆ mustStop()

void AsyncJob::mustStop ( const char * aReason )

protectedinherited

Definition at line 85 of file AsyncJob.cc.

References debugs, AsyncJob::inCall, Must, AsyncJob::stopReason, and AsyncJob::typeName.

Referenced by HttpStateData::abortAll(), AsyncJob::callException(), HttpStateData::continueAfterParsingHeader(), HttpStateData::drop1xx(), AsyncJob::handleStopRequest(), HttpStateData::httpStateConnClosed(), HttpStateData::httpTimeout(), HttpStateData::proceedAfter1xx(), ConnStateData::proxyProtocolError(), HttpStateData::readReply(), HttpStateData::start(), and HttpStateData::wroteLast().

◆ noteAdaptationAclCheckDone()

void Adaptation::Initiator::noteAdaptationAclCheckDone ( Adaptation::ServiceGroupPointer group )

virtualinherited

AccessCheck calls this back with a possibly nil service group to signal whether adaptation is needed and where it should start.

Reimplemented in Client, and ClientHttpRequest.

Definition at line 17 of file Initiator.cc.

References Must.

◆ noteAdaptationAnswer()

void Adaptation::Iterator::noteAdaptationAnswer ( const Answer & answer )

overridevirtual

called with the initial adaptation decision (adapt, block, error); virgin and/or adapted body transmission may continue after this

Implements Adaptation::Initiator.

Definition at line 115 of file Iterator.cc.

References Adaptation::Answer::akBlock, Adaptation::Answer::akError, Adaptation::Answer::akForward, Adaptation::Answer::final, RefCount< C >::getRaw(), Adaptation::Answer::kind, and Adaptation::Answer::message.

◆ noteInitiatorAborted()

void Adaptation::Iterator::noteInitiatorAborted ( )

overridevirtual

Implements Adaptation::Initiate.

Definition at line 159 of file Iterator.cc.

◆ RegisterWithCacheManager()

void AsyncJob::RegisterWithCacheManager ( )

staticinherited

Definition at line 215 of file AsyncJob.cc.

References Mgr::RegisterAction(), and AsyncJob::ReportAllJobs().

Referenced by mainInitialize().

◆ ReportAllJobs()

void AsyncJob::ReportAllJobs ( StoreEntry * e )

staticprotectedinherited

Definition at line 198 of file AsyncJob.cc.

References AllJobs().

Referenced by AsyncJob::RegisterWithCacheManager().

◆ sendAnswer()

void Adaptation::Initiate::sendAnswer ( const Answer & answer )

protectedinherited

Definition at line 79 of file Initiate.cc.

References Adaptation::Initiator::noteAdaptationAnswer(), and ScheduleCallHere.

◆ start()

void Adaptation::Iterator::start ( )

overrideprotectedvirtual

Reimplemented from AsyncJob.

Definition at line 50 of file Iterator.cc.

References HttpRequest::adaptHistory(), Must, Adaptation::Config::needHistory, Adaptation::History::recordAdaptationService(), AsyncJob::start(), and StringToSBuf().

◆ Start()

void AsyncJob::Start ( const Pointer & job )

staticinherited

Promises to start the configured job (eventually). The job is deemed to be running asynchronously beyond this point, so the caller should only access the job object via AsyncCalls rather than directly.

swanSong() is only called for jobs for which this method has returned successfully (i.e. without throwing).

Definition at line 37 of file AsyncJob.cc.

References CallJobHere, AsyncJob::start(), and AsyncJob::started_.

Referenced by Ftp::Server::AcceptCtrlConnection(), clientListenerConnectionOpened(), Ipc::Coordinator::handleCacheMgrRequest(), Ipc::Coordinator::handleSnmpRequest(), httpAccept(), httpsAccept(), httpStart(), idnsInitVC(), Ftp::Gateway::listenForDataChannel(), Ftp::Server::listenForDataConnection(), Log::TcpLogger::Open(), peerProbeConnect(), Mgr::FunAction::respond(), Mgr::InfoAction::respond(), Ipc::SendMessage(), Mgr::Inquirer::sendResponse(), snmpConstructReponse(), SquidMain(), CacheManager::start(), Adaptation::AccessCheck::Start(), Rock::Rebuild::Start(), JobWaitBase::start_(), BodyPipe::startAutoConsumptionIfNeeded(), Ftp::StartGateway(), Ftp::StartRelay(), and Rock::SwapDir::updateHeaders().

◆ status()

const char * Adaptation::Initiate::status ( ) const

overrideprotectedvirtualinherited

for debugging, starts with space

Reimplemented from AsyncJob.

Definition at line 92 of file Initiate.cc.

References AsyncJob::status().

◆ step()

void Adaptation::Iterator::step ( )

protected

Definition at line 71 of file Iterator.cc.

References HttpRequest::adaptHistory(), assert, Adaptation::Service::cfg(), HttpRequest::clearError(), DBG_CRITICAL, debugs, Adaptation::Answer::Forward(), Adaptation::ServiceConfig::key, Adaptation::Service::makeXactLauncher(), Must, Adaptation::Config::needHistory, Adaptation::History::recordAdaptationService(), Adaptation::Config::service_iteration_limit, StringToSBuf(), and TexcHere.

◆ swanSong()

void Adaptation::Iterator::swanSong ( )

overrideprotectedvirtual

Reimplemented from Adaptation::Initiate.

Definition at line 215 of file Iterator.cc.

References Adaptation::Initiate::swanSong().

◆ tellQueryAborted()

void Adaptation::Initiate::tellQueryAborted ( bool final )

protectedinherited

Definition at line 87 of file Initiate.cc.

References Adaptation::Answer::Error().

◆ toCbdata()

virtual void * CbdataParent::toCbdata ( )

pure virtualinherited

Referenced by AsyncJob::callException(), and AsyncJob::callStart().

◆ updatePlan()

bool Adaptation::Iterator::updatePlan ( bool adopt )

protected

Definition at line 226 of file Iterator.cc.

References HttpRequest::adaptHistory(), debugs, Adaptation::DynamicGroupCfg::empty(), Adaptation::History::extractNextServices(), Must, Adaptation::History::setFutureServices(), and Adaptation::DynamicServiceChain::Split().

Member Data Documentation

◆ adapted

bool Adaptation::Iterator::adapted

protected

Definition at line 73 of file Iterator.h.

◆ al

AccessLogEntryPointer Adaptation::Iterator::al

protected

Definition at line 70 of file Iterator.h.

◆ id

const InstanceId<AsyncJob> AsyncJob::id

inherited

Definition at line 75 of file AsyncJob.h.

◆ inCall

AsyncCall::Pointer AsyncJob::inCall

protectedinherited

Definition at line 86 of file AsyncJob.h.

Referenced by AsyncJob::callEnd(), AsyncJob::callStart(), AsyncJob::canBeCalled(), AsyncJob::deleteThis(), and AsyncJob::mustStop().

◆ iterations

int Adaptation::Iterator::iterations

protected

Definition at line 72 of file Iterator.h.

◆ started_

bool AsyncJob::started_ = false

protectedinherited

Definition at line 88 of file AsyncJob.h.

Referenced by AsyncJob::~AsyncJob(), AsyncJob::callEnd(), and AsyncJob::Start().

◆ stopReason

const char* AsyncJob::stopReason

protectedinherited

Definition at line 84 of file AsyncJob.h.

Referenced by AsyncJob::deleteThis(), AsyncJob::done(), AsyncJob::mustStop(), AsyncJob::status(), and HappyConnOpener::status().

◆ swanSang_

bool AsyncJob::swanSang_ = false

protectedinherited

Definition at line 89 of file AsyncJob.h.

Referenced by AsyncJob::~AsyncJob(), and AsyncJob::callEnd().

◆ theCause

HttpRequest* Adaptation::Iterator::theCause

protected

Definition at line 69 of file Iterator.h.

Referenced by Iterator().

◆ theGroup

ServiceGroupPointer Adaptation::Iterator::theGroup

protected

Definition at line 66 of file Iterator.h.

◆ theInitiator

CbcPointer<Initiator> Adaptation::Initiate::theInitiator

protectedinherited

Definition at line 51 of file Initiate.h.

◆ theLauncher

CbcPointer<Adaptation::Initiate> Adaptation::Iterator::theLauncher

protected

Definition at line 71 of file Iterator.h.

◆ theMsg

Http::Message* Adaptation::Iterator::theMsg

protected

Definition at line 68 of file Iterator.h.

Referenced by Iterator().

◆ thePlan

ServicePlan Adaptation::Iterator::thePlan

protected

Definition at line 67 of file Iterator.h.

◆ typeName

const char* AsyncJob::typeName

protectedinherited

Definition at line 85 of file AsyncJob.h.

Referenced by AsyncJob::AsyncJob(), Adaptation::Icap::Xaction::Xaction(), AsyncJob::~AsyncJob(), AsyncJob::callEnd(), AsyncJob::callStart(), AsyncJob::deleteThis(), and AsyncJob::mustStop().

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

squid/src/adaptation/Iterator.h
squid/src/adaptation/Iterator.cc

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Private Member Functions

Detailed Description

Member Typedef Documentation

◆ Pointer

Constructor & Destructor Documentation

◆ Iterator()

◆ ~Iterator()

Member Function Documentation

◆ announceInitiatorAbort()

◆ callEnd()

◆ callException()

◆ callStart()

◆ canBeCalled()

◆ CBDATA_CHILD()

◆ clearAdaptation()

◆ clearInitiator()

◆ deleteThis()

◆ done()

◆ doneAll()

◆ filter()

◆ finalizedInCbdataChild()

◆ handleAdaptationBlock()

◆ handleAdaptationError()

◆ handleAdaptedHeader()

◆ handleStopRequest()

◆ initiateAdaptation()

◆ initiated()

◆ initiator()

◆ mustStop()

◆ noteAdaptationAclCheckDone()

◆ noteAdaptationAnswer()

◆ noteInitiatorAborted()

◆ RegisterWithCacheManager()

◆ ReportAllJobs()

◆ sendAnswer()

◆ start()

◆ Start()

◆ status()

◆ step()

◆ swanSong()

◆ tellQueryAborted()

◆ toCbdata()

◆ updatePlan()

Member Data Documentation

◆ adapted

◆ al

◆ id

◆ inCall

◆ iterations

◆ started_

◆ stopReason

◆ swanSang_

◆ theCause

◆ theGroup

◆ theInitiator

◆ theLauncher

◆ theMsg

◆ thePlan

◆ typeName