Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | Static Protected Member Functions | Protected Attributes | Private Member Functions | List of all members
Mgr::StoreToCommWriter Class Referenceabstract

#include <StoreToCommWriter.h>

Inheritance diagram for Mgr::StoreToCommWriter:
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Collaboration diagram for Mgr::StoreToCommWriter:
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Public Types

typedef CbcPointer< AsyncJob > Pointer
 

Public Member Functions

 StoreToCommWriter (const Comm::ConnectionPointer &conn, StoreEntry *anEntry)
 
virtual ~StoreToCommWriter ()
 
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 ()
 
virtual bool doneAll () const
 whether positive goal has been reached More...
 
void scheduleStoreCopy ()
 request more action results from the store More...
 
void noteStoreCopied (StoreIOBuffer ioBuf)
 receive some action results from the store More...
 
void scheduleCommWrite (const StoreIOBuffer &ioBuf)
 tell Comm to write action results More...
 
void noteCommWrote (const CommIoCbParams &params)
 called by Comm after the action results are written More...
 
void noteCommClosed (const CommCloseCbParams &params)
 called by Comm if the client socket got closed More...
 
void close ()
 closes the local connection to the HTTP client, if any More...
 
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...
 

Static Protected Member Functions

static void NoteStoreCopied (void *data, StoreIOBuffer ioBuf)
 
static void Abort (void *param)
 called by Store if the entry is no longer usable More...
 

Protected Attributes

Comm::ConnectionPointer clientConnection
 HTTP client descriptor. More...
 
StoreEntry * entry
 store entry with the cache manager response More...
 
store_client * sc
 our registration with the store More...
 
int64_t writeOffset
 number of bytes written to the client More...
 
AsyncCall::Pointer closer
 comm_close handler More...
 
char buffer [HTTP_REQBUF_SZ]
 action results; Store fills, Comm writes More...
 
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 (StoreToCommWriter)
 

Detailed Description

manages receive-from-store, write-to-comm, receive-... sequence for the given StoreEntry and client FD

Definition at line 28 of file StoreToCommWriter.h.

Member Typedef Documentation

◆ Pointer

typedef CbcPointer<AsyncJob> AsyncJob::Pointer
inherited

Definition at line 34 of file AsyncJob.h.

Constructor & Destructor Documentation

◆ StoreToCommWriter()

Mgr::StoreToCommWriter::StoreToCommWriter ( const Comm::ConnectionPointer &  conn,
StoreEntry *  anEntry 
)

Definition at line 23 of file StoreToCommWriter.cc.

References asyncCall(), clientConnection, closer, comm_add_close_handler(), debugs, Comm::Connection::fd, HERE(), and noteCommClosed().

◆ ~StoreToCommWriter()

Mgr::StoreToCommWriter::~StoreToCommWriter ( )
virtual

Definition at line 33 of file StoreToCommWriter.cc.

References assert, close(), debugs, entry, HERE(), and sc.

Member Function Documentation

◆ Abort()

void Mgr::StoreToCommWriter::Abort ( void *  param)
staticprotected

Definition at line 161 of file StoreToCommWriter.cc.

References clientConnection, Comm::Connection::close(), and Comm::IsConnOpen().

Referenced by start().

◆ 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(), AsyncJob::deleteThis(), and AsyncJob::swanSong().

◆ callException()

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

Reimplemented in Adaptation::Icap::ModXact, ClientHttpRequest, Adaptation::Icap::Xaction, Adaptation::Icap::ServiceRep, Ftp::Server, 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(), Adaptation::Icap::Xaction::callException(), and AsyncJob::swanSong().

◆ 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.

Referenced by AsyncJob::swanSong().

◆ 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.

Referenced by AsyncJob::swanSong().

◆ CBDATA_CLASS()

Mgr::StoreToCommWriter::CBDATA_CLASS ( StoreToCommWriter  )
private

◆ close()

void Mgr::StoreToCommWriter::close ( )
protected

closes our copy of the client HTTP connection socket

Definition at line 43 of file StoreToCommWriter.cc.

References clientConnection, Comm::Connection::close(), closer, comm_remove_close_handler(), Comm::Connection::fd, Comm::IsConnOpen(), and NULL.

Referenced by swanSong(), and ~StoreToCommWriter().

◆ 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.

◆ done()

bool AsyncJob::done ( ) const
protectedinherited

Definition at line 90 of file AsyncJob.cc.

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

Referenced by Adaptation::Ecap::XactionRep::blockVirgin(), AsyncJob::callEnd(), Adaptation::AccessCheck::checkCandidates(), HappyConnOpener::checkForNewConnection(), Rock::Rebuild::checkpoint(), Downloader::downloadFinished(), Comm::TcpAcceptor::handleClosure(), Adaptation::Icap::OptXact::handleCommRead(), Ipc::Inquirer::handleRemoteAck(), Ipc::Inquirer::inquire(), Adaptation::Icap::Launcher::noteAdaptationAnswer(), Adaptation::AccessCheck::noteAnswer(), Adaptation::Icap::Launcher::noteInitiatorAborted(), Adaptation::Icap::Launcher::noteXactAbort(), Ipc::Inquirer::requestTimedOut(), Adaptation::Iterator::step(), Adaptation::AccessCheck::usedDynamicRules(), and Adaptation::Ecap::XactionRep::useVirgin().

◆ doneAll()

bool Mgr::StoreToCommWriter::doneAll ( ) const
protectedvirtual

Reimplemented from AsyncJob.

Definition at line 153 of file StoreToCommWriter.cc.

References entry, StoreEntry::objectLen(), STORE_OK, StoreEntry::store_status, and writeOffset.

Referenced by noteCommWrote(), and noteStoreCopied().

◆ mustStop()

void AsyncJob::mustStop ( const char *  aReason)
protectedinherited

Definition at line 69 of file AsyncJob.cc.

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

Referenced by HttpStateData::abortAll(), Ftp::Client::abortAll(), Comm::TcpAcceptor::acceptOne(), Adaptation::Ecap::XactionRep::adaptationAborted(), Adaptation::AccessCheck::callBack(), AsyncJob::callException(), Security::PeerConnector::connectionClosed(), HttpStateData::continueAfterParsingHeader(), Ftp::Client::ctrlClosed(), Adaptation::Iterator::handleAdaptationBlock(), Adaptation::Iterator::handleAdaptationError(), Log::TcpLogger::handleClosure(), Adaptation::Icap::Xaction::handleCommClosed(), Http::Tunneler::handleConnectionClosure(), Mgr::Forwarder::handleError(), Ipc::Forwarder::handleError(), Ipc::Forwarder::handleException(), Ipc::Inquirer::handleException(), HttpStateData::handleMoreRequestBodyAvailable(), Ipc::Inquirer::handleRemoteAck(), Ipc::Forwarder::handleTimeout(), HttpStateData::httpStateConnClosed(), HttpStateData::httpTimeout(), Comm::ConnOpener::noteAbort(), Adaptation::Icap::ModXact::noteBodyConsumerAborted(), Snmp::Forwarder::noteCommClosed(), Snmp::Inquirer::noteCommClosed(), Mgr::Inquirer::noteCommClosed(), Mgr::Forwarder::noteCommClosed(), noteCommClosed(), Adaptation::Icap::Xaction::noteCommRead(), Rock::HeaderUpdater::noteDoneReading(), Adaptation::Iterator::noteInitiatorAborted(), Adaptation::Icap::Xaction::noteInitiatorAborted(), Adaptation::Ecap::XactionRep::noteInitiatorAborted(), HttpStateData::readReply(), Comm::ConnOpener::sendAnswer(), Rock::Rebuild::start(), Security::PeerConnector::start(), HttpStateData::start(), Ipc::UdsSender::timedout(), and HttpStateData::wroteLast().

◆ noteCommClosed()

void Mgr::StoreToCommWriter::noteCommClosed ( const CommCloseCbParams &  params)
protected

Definition at line 129 of file StoreToCommWriter.cc.

References clientConnection, debugs, HERE(), Comm::IsConnOpen(), Must, and AsyncJob::mustStop().

Referenced by StoreToCommWriter().

◆ noteCommWrote()

void Mgr::StoreToCommWriter::noteCommWrote ( const CommIoCbParams &  params)
protected

Definition at line 117 of file StoreToCommWriter.cc.

References clientConnection, debugs, doneAll(), CommCommonCbParams::fd, Comm::Connection::fd, CommCommonCbParams::flag, HERE(), Must, NULL, Comm::OK, scheduleStoreCopy(), CommIoCbParams::size, and writeOffset.

Referenced by scheduleCommWrite().

◆ noteStoreCopied()

void Mgr::StoreToCommWriter::noteStoreCopied ( StoreIOBuffer  ioBuf)
protected

Definition at line 92 of file StoreToCommWriter.cc.

References debugs, doneAll(), StoreIOBuffer::error, StoreIOBuffer::flags, HERE(), StoreIOBuffer::length, Must, and scheduleCommWrite().

Referenced by NoteStoreCopied().

◆ NoteStoreCopied()

void Mgr::StoreToCommWriter::NoteStoreCopied ( void *  data,
StoreIOBuffer  ioBuf 
)
staticprotected

Definition at line 79 of file StoreToCommWriter.cc.

References asyncCall(), data, Must, noteStoreCopied(), NULL, and ScheduleCallHere.

Referenced by scheduleStoreCopy().

◆ scheduleCommWrite()

void Mgr::StoreToCommWriter::scheduleCommWrite ( const StoreIOBuffer &  ioBuf)
protected

Definition at line 103 of file StoreToCommWriter.cc.

References asyncCall(), clientConnection, StoreIOBuffer::data, debugs, HERE(), Comm::IsConnOpen(), StoreIOBuffer::length, Must, noteCommWrote(), NULL, and Comm::Write().

Referenced by noteStoreCopied().

◆ scheduleStoreCopy()

void Mgr::StoreToCommWriter::scheduleStoreCopy ( )
protected

Definition at line 69 of file StoreToCommWriter.cc.

References buffer, debugs, entry, HERE(), Must, NoteStoreCopied(), NULL, sc, storeClientCopy(), and writeOffset.

Referenced by noteCommWrote(), and start().

◆ start()

void Mgr::StoreToCommWriter::start ( )
protectedvirtual

Reimplemented from AsyncJob.

Reimplemented in Mgr::ActionWriter, and Mgr::Filler.

Definition at line 55 of file StoreToCommWriter.cc.

References Abort(), clientConnection, debugs, entry, HERE(), Comm::IsConnOpen(), Must, NULL, StoreEntry::registerAbort(), sc, scheduleStoreCopy(), and storeClientListAdd().

Referenced by Mgr::ActionWriter::start(), and Mgr::Filler::start().

◆ 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(), TunnelStateData::connectedToPeer(), FwdState::connectStart(), TunnelStateData::connectToPeer(), Adaptation::Icap::Xaction::dnsLookupDone(), Log::TcpLogger::doConnect(), FwdState::establishTunnelThruProxy(), Ipc::Coordinator::handleCacheMgrRequest(), PeerPoolMgr::handleOpenedConnection(), Ipc::Coordinator::handleSnmpRequest(), httpAccept(), httpsAccept(), httpStart(), idnsInitVC(), Adaptation::Initiator::initiateAdaptation(), 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::secureConnectionToPeerIfNeeded(), 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 Adaptation::Icap::ServiceRep, HappyConnOpener, Adaptation::Icap::Xaction, Security::PeerConnector, Adaptation::Ecap::XactionRep, Http::Tunneler, Adaptation::Initiate, Comm::TcpAcceptor, and Ipc::Inquirer.

Definition at line 159 of file AsyncJob.cc.

References MemBuf::append(), Packable::appendf(), buf, MemBuf::content(), NULL, MemBuf::reset(), AsyncJob::stopReason, and MemBuf::terminate().

Referenced by BodyPipe::buf(), AsyncJob::callEnd(), AsyncJob::callStart(), ClientRequestContext::clientAccessCheckDone(), ClientRequestContext::clientRedirectDone(), Ftp::Client::ctrlClosed(), Ftp::Relay::dataChannelConnected(), Ftp::Client::dataClosed(), Ftp::Client::dataComplete(), Ftp::Client::doneSendingRequestBody(), Ftp::Client::handleControlReply(), Ftp::Client::handleEpsvReply(), Ftp::Client::handlePasvReply(), Ftp::Client::parseControlReply(), Ftp::Relay::processReplyBody(), Ftp::Gateway::processReplyBody(), Ftp::Relay::readTransferDoneReply(), Ftp::Client::sendEprt(), Ftp::Client::sendPassive(), Adaptation::Initiate::status(), Comm::TcpAcceptor::status(), and AsyncJob::swanSong().

◆ swanSong()

void Mgr::StoreToCommWriter::swanSong ( )
protectedvirtual

Reimplemented from AsyncJob.

Reimplemented in Mgr::Filler.

Definition at line 137 of file StoreToCommWriter.cc.

References close(), debugs, entry, HERE(), NULL, sc, storeUnregister(), StoreEntry::unlock(), and StoreEntry::unregisterAbort().

Referenced by Mgr::Filler::swanSong().

◆ toCbdata()

virtual void* CbdataParent::toCbdata ( )
pure virtualinherited

Implemented in ClientHttpRequest, HttpStateData, and BodySink.

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

Member Data Documentation

◆ buffer

char Mgr::StoreToCommWriter::buffer[HTTP_REQBUF_SZ]
protected

Definition at line 68 of file StoreToCommWriter.h.

Referenced by scheduleStoreCopy().

◆ clientConnection

Comm::ConnectionPointer Mgr::StoreToCommWriter::clientConnection
protected

Definition at line 61 of file StoreToCommWriter.h.

Referenced by Abort(), close(), noteCommClosed(), noteCommWrote(), scheduleCommWrite(), start(), and StoreToCommWriter().

◆ closer

AsyncCall::Pointer Mgr::StoreToCommWriter::closer
protected

Definition at line 67 of file StoreToCommWriter.h.

Referenced by close(), and StoreToCommWriter().

◆ entry

StoreEntry* Mgr::StoreToCommWriter::entry
protected

Definition at line 63 of file StoreToCommWriter.h.

Referenced by doneAll(), scheduleStoreCopy(), Mgr::ActionWriter::start(), Mgr::Filler::start(), start(), swanSong(), and ~StoreToCommWriter().

◆ 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(), Adaptation::Icap::ModXact::callException(), AsyncJob::callStart(), AsyncJob::canBeCalled(), AsyncJob::deleteThis(), Log::TcpLogger::endGracefully(), Log::TcpLogger::handleClosure(), and AsyncJob::mustStop().

◆ sc

store_client* Mgr::StoreToCommWriter::sc
protected

Definition at line 64 of file StoreToCommWriter.h.

Referenced by scheduleStoreCopy(), start(), swanSong(), and ~StoreToCommWriter().

◆ stopReason

const char* AsyncJob::stopReason
protectedinherited

Definition at line 69 of file AsyncJob.h.

Referenced by AsyncJob::deleteThis(), AsyncJob::done(), AsyncJob::mustStop(), AsyncJob::status(), Http::Tunneler::status(), Security::PeerConnector::status(), and HappyConnOpener::status().

◆ typeName

const char* AsyncJob::typeName
protectedinherited

Definition at line 70 of file AsyncJob.h.

Referenced by AsyncJob::AsyncJob(), AsyncJob::callEnd(), Adaptation::Icap::Xaction::callEnd(), AsyncJob::callStart(), AsyncJob::deleteThis(), Adaptation::Icap::Xaction::dieOnConnectionFailure(), Adaptation::Icap::Xaction::disableRepeats(), Adaptation::Icap::Xaction::disableRetries(), Adaptation::Icap::Xaction::handleCommTimedout(), Adaptation::Icap::Xaction::handleSecuredPeer(), AsyncJob::mustStop(), Adaptation::Icap::Xaction::openConnection(), Adaptation::Icap::Xaction::Xaction(), AsyncJob::~AsyncJob(), and Adaptation::Icap::Xaction::~Xaction().

◆ writeOffset

int64_t Mgr::StoreToCommWriter::writeOffset
protected

Definition at line 65 of file StoreToCommWriter.h.

Referenced by doneAll(), noteCommWrote(), and scheduleStoreCopy().

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

 

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