#include <ConnOpener.h>

Inheritance diagram for Comm::ConnOpener:

Collaboration diagram for Comm::ConnOpener:

[legend]

Classes
struct	Calls
	handles to calls which we may need to cancel. More...

Public Types
typedef CbcPointer< ConnOpener >	Pointer

Public Member Functions
void	noteAbort ()

virtual bool	doneAll () const
	whether positive goal has been reached More...

	ConnOpener (const Comm::ConnectionPointer &, const AsyncCall::Pointer &handler, time_t connect_timeout)

	~ConnOpener ()

void	setHost (const char *)
	set the hostname note for this connection More...

const char *	getHost () const
	get the hostname noted for this connection More...

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

void	callStart (AsyncCall &call)

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

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

virtual void *	toCbdata ()=0

Static Public Member Functions
static Pointer	Start (AsyncJob *job)
	starts a freshly created job (i.e., makes the job asynchronous) More...

Protected Member Functions
virtual void	start ()
	called by AsyncStart; do not call directly More...

virtual void	swanSong ()

void	deleteThis (const char *aReason)

void	mustStop (const char *aReason)

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

virtual const char *	status () const
	internal cleanup; do not call directly More...

Protected Attributes
const char *	stopReason
	reason for forcing done() to be true More...

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

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

const InstanceId< AsyncJob >	id
	job identifier More...

Private Member Functions
	CBDATA_CLASS (ConnOpener)

	ConnOpener (const ConnOpener &)

ConnOpener &	operator= (const ConnOpener &c)

void	earlyAbort (const CommCloseCbParams &)

void	timeout (const CommTimeoutCbParams &)

void	sendAnswer (Comm::Flag errFlag, int xerrno, const char *why)

void	doConnect ()
	Make an FD connection attempt. More...

void	connected ()

void	lookupLocalAddress ()

void	retrySleep ()
	Close and wait a little before trying to open and connect again. More...

void	restart ()
	called at the end of Comm::ConnOpener::DelayedConnectRetry event More...

bool	createFd ()

void	closeFd ()
	cleans I/O state and ends I/O for temporaryFd_ More...

void	keepFd ()
	cleans I/O state and moves temporaryFd_ to the conn_ for long-term use More...

void	cleanFd ()

void	cancelSleep ()
	cleans up this job sleep state More...

Static Private Member Functions
static void	InProgressConnectRetry (int fd, void *data)

static void	DelayedConnectRetry (void *data)

Private Attributes
char *	host_
	domain name we are trying to connect to. More...

int	temporaryFd_
	the FD being opened. Do NOT set conn_->fd until it is fully open. More...

Comm::ConnectionPointer	conn_
	single connection currently to be opened. More...

AsyncCall::Pointer	callback_
	handler to be called on connection completion. More...

int	totalTries_
	total number of connection attempts over all destinations so far. More...

int	failRetries_
	number of retries current destination has been tried. More...

time_t	deadline_
	if we are not done by then, we will call back with Comm::TIMEOUT More...

struct Comm::ConnOpener::Calls	calls_

Detailed Description

Async-opener of a Comm connection.

Definition at line 25 of file ConnOpener.h.

Member Typedef Documentation

◆ Pointer

typedef CbcPointer<ConnOpener> Comm::ConnOpener::Pointer

Definition at line 32 of file ConnOpener.h.

Constructor & Destructor Documentation

◆ ConnOpener() [1/2]

Comm::ConnOpener::ConnOpener	(	const Comm::ConnectionPointer &	c,
		const AsyncCall::Pointer &	handler,
		time_t	connect_timeout
	)

Definition at line 33 of file ConnOpener.cc.

References debugs.

◆ ~ConnOpener()

Comm::ConnOpener::~ConnOpener ( )

Definition at line 46 of file ConnOpener.cc.

References safe_free.

◆ ConnOpener() [2/2]

Comm::ConnOpener::ConnOpener ( const ConnOpener & )

private

Member Function Documentation

◆ callEnd()

void AsyncJob::callEnd ( )

virtualinherited

called right after the called job method

Reimplemented in Adaptation::Icap::Xaction.

Definition at line 136 of file AsyncJob.cc.

References AsyncCall::debugLevel, debugs, AsyncCall::debugSection, AsyncJob::done(), HERE(), AsyncJob::inCall, NULL, AsyncJob::status(), 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 ClientHttpRequest, Ftp::Server, Adaptation::Icap::ModXact, Adaptation::Icap::Xaction, Adaptation::Icap::ServiceRep, Ipc::Forwarder, and Ipc::Inquirer.

Definition at line 127 of file AsyncJob.cc.

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

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

◆ callStart()

void AsyncJob::callStart ( AsyncCall & call )

inherited

called just before the called method

Definition at line 114 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 101 of file AsyncJob.cc.

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

◆ cancelSleep()

void Comm::ConnOpener::cancelSleep ( )

private

Definition at line 388 of file ConnOpener.cc.

References debugs.

◆ CBDATA_CLASS()

Comm::ConnOpener::CBDATA_CLASS ( ConnOpener )

private

◆ cleanFd()

void Comm::ConnOpener::cleanFd ( )

private

cleans up this job I/O state without closing temporaryFd required before closing temporaryFd or keeping it in conn_ leaves FD bare so must only be called via closeFd() or keepFd()

Definition at line 153 of file ConnOpener.cc.

References comm_remove_close_handler(), COMM_SELECT_WRITE, debugs, fd_table, HERE(), Must, NULL, Comm::SetSelect(), fde::timeout, fde::timeoutHandler, fde::write_data, and fde::write_handler.

◆ closeFd()

void Comm::ConnOpener::closeFd ( )

private

Definition at line 199 of file ConnOpener.cc.

References comm_close.

◆ connected()

void Comm::ConnOpener::connected ( )

private

Definition at line 306 of file ConnOpener.cc.

References fd_table, Must, and Comm::OK.

◆ createFd()

bool Comm::ConnOpener::createFd ( )

private

Create a socket for the future connection or return false. If false is returned, done() is guaranteed to return true and end the job.

Definition at line 258 of file ConnOpener.cc.

References assert, comm_add_close_handler(), comm_openex(), debugs, earlyAbort(), Comm::ERR_CONNECT, fd_table, CachePeer::flags, JobCallback, Must, NULL, CachePeer::params, Ip::Qos::setSockNfmark(), Ip::Qos::setSockTos(), squid_curtime, Squid_MaxFD, and timeout().

◆ DelayedConnectRetry()

void Comm::ConnOpener::DelayedConnectRetry ( void * data )

staticprivate

Definition at line 472 of file ConnOpener.cc.

References assert, data, JobCallback, restart(), and ScheduleCallHere.

Referenced by retrySleep().

◆ deleteThis()

void AsyncJob::deleteThis ( const char * aReason )

protectedinherited

Definition at line 49 of file AsyncJob.cc.

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

Referenced by ConnStateData::connStateClosed().

◆ doConnect()

void Comm::ConnOpener::doConnect ( )

private

Definition at line 335 of file ConnOpener.cc.

References comm_connect_addr(), COMM_SELECT_WRITE, Config, SquidConfig::connect_retries, debugs, Comm::ERR_CONNECT, HERE(), Comm::INPROGRESS, InProgressConnectRetry(), Must, NULL, Comm::OK, Comm::SetSelect(), and xstrerr().

Referenced by InProgressConnectRetry().

◆ done()

bool AsyncJob::done ( ) const

protectedinherited

Definition at line 90 of file AsyncJob.cc.

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

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

◆ doneAll()

bool Comm::ConnOpener::doneAll ( ) const

virtual

Reimplemented from AsyncJob.

Definition at line 52 of file ConnOpener.cc.

References AsyncJob::doneAll(), Must, and NULL.

◆ earlyAbort()

void Comm::ConnOpener::earlyAbort ( const CommCloseCbParams & io )

private

Abort connection attempt. Handles the case(s) when a partially setup connection gets closed early.

Definition at line 430 of file ConnOpener.cc.

References CommCommonCbParams::conn, debugs, Comm::ERR_CLOSING, HERE(), NULL, and CommCommonCbParams::xerrno.

Referenced by createFd().

◆ getHost()

const char * Comm::ConnOpener::getHost ( ) const

Definition at line 101 of file ConnOpener.cc.

◆ InProgressConnectRetry()

void Comm::ConnOpener::InProgressConnectRetry	(	int	fd,
		void *	data
	)

staticprivate

Definition at line 454 of file ConnOpener.cc.

References assert, data, doConnect(), JobCallback, and ScheduleCallHere.

Referenced by doConnect().

◆ keepFd()

void Comm::ConnOpener::keepFd ( )

private

Definition at line 218 of file ConnOpener.cc.

References Must, and NULL.

◆ lookupLocalAddress()

void Comm::ConnOpener::lookupLocalAddress ( )

private

Lookup local-end address and port of the TCP link just opened. This ensure the connection local details are set correctly

Definition at line 409 of file ConnOpener.cc.

References addrinfo::ai_addr, addrinfo::ai_addrlen, DBG_IMPORTANT, debugs, Ip::Address::FreeAddr(), HERE(), Ip::Address::InitAddr(), NULL, and xstrerr().

◆ mustStop()

void AsyncJob::mustStop ( const char * aReason )

protectedinherited

◆ noteAbort()

void Comm::ConnOpener::noteAbort ( )

inline

Definition at line 30 of file ConnOpener.h.

References AsyncJob::mustStop().

◆ operator=()

ConnOpener& Comm::ConnOpener::operator= ( const ConnOpener & c )

private

◆ restart()

void Comm::ConnOpener::restart ( )

private

Definition at line 246 of file ConnOpener.cc.

References debugs.

Referenced by DelayedConnectRetry().

◆ retrySleep()

void Comm::ConnOpener::retrySleep ( )

private

Definition at line 376 of file ConnOpener.cc.

References DelayedConnectRetry(), eventAdd(), and Must.

◆ sendAnswer()

void Comm::ConnOpener::sendAnswer	(	Comm::Flag	errFlag,
		int	xerrno,
		const char *	why
	)

private

Connection attempt are completed. One way or the other. Pass the results back to the external handler.

Definition at line 111 of file ConnOpener.cc.

References Config, debugs, ipcacheMarkBadAddr(), ipcacheMarkGoodAddr(), netdbDeleteAddrNetwork(), NULL, SquidConfig::onoff, CachePeer::params, ScheduleCallHere, and SquidConfig::test_reachability.

◆ setHost()

void Comm::ConnOpener::setHost ( const char * new_host )

Definition at line 89 of file ConnOpener.cc.

References NULL, safe_free, and xstrdup.

Referenced by Ftp::Client::connectDataChannel(), idnsInitVC(), HappyConnOpener::openFreshConnection(), and peerProbeConnect().

◆ start()

void Comm::ConnOpener::start ( )

protectedvirtual

Reimplemented from AsyncJob.

Definition at line 230 of file ConnOpener.cc.

References Ip::EnableIpv6, IPV6_SPECIAL_V4MAPPING, Must, and NULL.

◆ Start()

AsyncJob::Pointer AsyncJob::Start ( AsyncJob * job )

staticinherited

Definition at line 23 of file AsyncJob.cc.

References CallJobHere, and AsyncJob::start().

Referenced by Ftp::Server::AcceptCtrlConnection(), Ftp::Server::checkDataConnPre(), clientListenerConnectionOpened(), Ftp::Client::connectDataChannel(), FwdState::connectStart(), Adaptation::Icap::Xaction::dnsLookupDone(), Log::TcpLogger::doConnect(), FwdState::establishTunnelThruProxy(), TunnelStateData::establishTunnelThruProxy(), Ipc::Coordinator::handleCacheMgrRequest(), PeerPoolMgr::handleOpenedConnection(), Ipc::Coordinator::handleSnmpRequest(), httpAccept(), httpsAccept(), httpStart(), idnsInitVC(), Ftp::Gateway::listenForDataChannel(), Ftp::Server::listenForDataConnection(), Adaptation::Icap::Xaction::noteCommConnected(), Log::TcpLogger::Open(), HappyConnOpener::openFreshConnection(), PeerPoolMgr::openNewConnection(), peerProbeConnect(), Rock::SwapDir::rebuild(), Mgr::FunAction::respond(), Mgr::InfoAction::respond(), FwdState::secureConnectionToPeer(), TunnelStateData::secureConnectionToPeer(), Ipc::SendMessage(), Mgr::Inquirer::sendResponse(), snmpConstructReponse(), SquidMain(), Ident::Start(), Adaptation::AccessCheck::Start(), CacheManager::start(), Security::PeerConnector::startCertDownloading(), TunnelStateData::startConnecting(), Ftp::StartGateway(), Ftp::StartRelay(), PeerPoolMgrsRr::syncConfig(), and Rock::SwapDir::updateHeaders().

◆ status()

const char * AsyncJob::status ( ) const

protectedvirtualinherited

for debugging, starts with space

Reimplemented in HappyConnOpener, Adaptation::Icap::ServiceRep, Adaptation::Icap::Xaction, Adaptation::Ecap::XactionRep, Http::Tunneler, Security::PeerConnector, Adaptation::Initiate, Comm::TcpAcceptor, and Ipc::Inquirer.

Definition at line 159 of file AsyncJob.cc.

References buf, NULL, and AsyncJob::stopReason.

Referenced by AsyncJob::callEnd(), AsyncJob::callStart(), Comm::TcpAcceptor::status(), and Adaptation::Initiate::status().

◆ swanSong()

void Comm::ConnOpener::swanSong ( )

protectedvirtual

Reimplemented from AsyncJob.

Definition at line 70 of file ConnOpener.cc.

References Comm::ERR_CONNECT, NULL, and AsyncJob::swanSong().

◆ timeout()

void Comm::ConnOpener::timeout ( const CommTimeoutCbParams & )

private

Handles the case(s) when a partially setup connection gets timed out. NP: When commSetConnTimeout accepts generic CommCommonCbParams this can die.

Definition at line 443 of file ConnOpener.cc.

References debugs, HERE(), NULL, and Comm::TIMEOUT.

Referenced by createFd().

◆ toCbdata()

virtual void* CbdataParent::toCbdata ( )

pure virtualinherited

Implemented in ClientHttpRequest, HttpStateData, and BodySink.

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

Member Data Documentation

◆ callback_

AsyncCall::Pointer Comm::ConnOpener::callback_

private

Definition at line 74 of file ConnOpener.h.

◆ calls_

struct Comm::ConnOpener::Calls Comm::ConnOpener::calls_

private

◆ conn_

Comm::ConnectionPointer Comm::ConnOpener::conn_

private

Definition at line 73 of file ConnOpener.h.

◆ deadline_

time_t Comm::ConnOpener::deadline_

private

Definition at line 80 of file ConnOpener.h.

◆ failRetries_

int Comm::ConnOpener::failRetries_

private

Definition at line 77 of file ConnOpener.h.

◆ host_

char* Comm::ConnOpener::host_

private

Definition at line 71 of file ConnOpener.h.

◆ id

const InstanceId<AsyncJob> AsyncJob::id

protectedinherited

Definition at line 72 of file AsyncJob.h.

◆ inCall

AsyncCall::Pointer AsyncJob::inCall

protectedinherited

Definition at line 71 of file AsyncJob.h.

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

◆ stopReason

const char* AsyncJob::stopReason

protectedinherited

Definition at line 69 of file AsyncJob.h.

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

◆ temporaryFd_

int Comm::ConnOpener::temporaryFd_

private

Definition at line 72 of file ConnOpener.h.

◆ totalTries_

int Comm::ConnOpener::totalTries_

private

Definition at line 76 of file ConnOpener.h.

◆ typeName

const char* AsyncJob::typeName

protectedinherited

Definition at line 70 of file AsyncJob.h.

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

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

src/comm/ConnOpener.h
src/comm/ConnOpener.cc

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Classes

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ Pointer

Constructor & Destructor Documentation

◆ ConnOpener() [1/2]

◆ ~ConnOpener()

◆ ConnOpener() [2/2]

Member Function Documentation

◆ callEnd()

◆ callException()

◆ callStart()

◆ canBeCalled()

◆ cancelSleep()

◆ CBDATA_CLASS()

◆ cleanFd()

◆ closeFd()

◆ connected()

◆ createFd()

◆ DelayedConnectRetry()

◆ deleteThis()

◆ doConnect()

◆ done()

◆ doneAll()

◆ earlyAbort()

◆ getHost()

◆ InProgressConnectRetry()

◆ keepFd()

◆ lookupLocalAddress()

◆ mustStop()

◆ noteAbort()

◆ operator=()

◆ restart()

◆ retrySleep()

◆ sendAnswer()

◆ setHost()

◆ start()

◆ Start()

◆ status()

◆ swanSong()

◆ timeout()

◆ toCbdata()

Member Data Documentation

◆ callback_

◆ calls_

◆ conn_

◆ deadline_

◆ failRetries_

◆ host_

◆ id

◆ inCall

◆ stopReason

◆ temporaryFd_

◆ totalTries_

◆ typeName

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