Public Types | Public Member Functions | Static Public Member Functions | Public Attributes | 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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Public Types

typedef CbcPointer< AsyncJob > Pointer
 

Public Member Functions

 StoreToCommWriter (const Comm::ConnectionPointer &conn, StoreEntry *anEntry)
 
 ~StoreToCommWriter () override
 
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...
 
void handleStopRequest ()
 process external request to terminate now (i.e. during this async call) More...
 
virtual void * toCbdata ()=0
 

Static Public Member Functions

static void Start (const Pointer &job)
 
static void RegisterWithCacheManager ()
 

Public Attributes

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

Protected Member Functions

void start () override
 called by AsyncStart; do not call directly More...
 
void swanSong () override
 
bool doneAll () const override
 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 HandleStoreAbort (StoreToCommWriter *param)
 called by Store if the entry is no longer usable More...
 
static void ReportAllJobs (StoreEntry *)
 writes a cache manager report about all jobs existing in this worker 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...
 
bool started_ = false
 Start() has finished successfully. More...
 
bool swanSang_ = false
 swanSong() was called More...
 

Private Member Functions

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

Detailed Description

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

Definition at line 29 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, and noteCommClosed().

◆ ~StoreToCommWriter()

Mgr::StoreToCommWriter::~StoreToCommWriter ( )
override

Definition at line 33 of file StoreToCommWriter.cc.

References assert, debugs, MYNAME, and sc.

Member Function Documentation

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

Definition at line 143 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 ConnStateData::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_INTERMEDIATE()

Mgr::StoreToCommWriter::CBDATA_INTERMEDIATE ( )
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 comm_remove_close_handler(), and Comm::IsConnOpen().

◆ deleteThis()

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

Definition at line 65 of file AsyncJob.cc.

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

Referenced by ConnStateData::connStateClosed().

◆ 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 Mgr::StoreToCommWriter::doneAll ( ) const
overrideprotectedvirtual

Reimplemented from AsyncJob.

Definition at line 158 of file StoreToCommWriter.cc.

References STORE_OK.

◆ finalizedInCbdataChild()

virtual void CbdataParent::finalizedInCbdataChild ( )
privatepure virtualinherited

◆ handleStopRequest()

void AsyncJob::handleStopRequest ( )
inlineinherited

Definition at line 73 of file AsyncJob.h.

References AsyncJob::mustStop().

◆ HandleStoreAbort()

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

Definition at line 166 of file StoreToCommWriter.cc.

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

Referenced by start().

◆ 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(), HttpStateData::handleMoreRequestBodyAvailable(), AsyncJob::handleStopRequest(), HttpStateData::httpStateConnClosed(), HttpStateData::httpTimeout(), HttpStateData::proceedAfter1xx(), ConnStateData::proxyProtocolError(), HttpStateData::readReply(), HttpStateData::start(), and HttpStateData::wroteLast().

◆ noteCommClosed()

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

Definition at line 130 of file StoreToCommWriter.cc.

References debugs, and MYNAME.

Referenced by StoreToCommWriter().

◆ noteCommWrote()

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

Definition at line 118 of file StoreToCommWriter.cc.

References debugs, CommCommonCbParams::fd, CommCommonCbParams::flag, Must, MYNAME, Comm::OK, and CommIoCbParams::size.

Referenced by scheduleCommWrite().

◆ noteStoreCopied()

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

Definition at line 93 of file StoreToCommWriter.cc.

References debugs, StoreIOBuffer::error, StoreIOBuffer::flags, StoreIOBuffer::length, Must, and MYNAME.

Referenced by NoteStoreCopied().

◆ NoteStoreCopied()

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

Definition at line 80 of file StoreToCommWriter.cc.

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

◆ 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().

◆ scheduleCommWrite()

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

Definition at line 104 of file StoreToCommWriter.cc.

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

◆ scheduleStoreCopy()

void Mgr::StoreToCommWriter::scheduleStoreCopy ( )
protected

Definition at line 70 of file StoreToCommWriter.cc.

References debugs, Must, MYNAME, sc, and storeClientCopy().

◆ start()

void Mgr::StoreToCommWriter::start ( )
overrideprotectedvirtual

Reimplemented from AsyncJob.

Definition at line 55 of file StoreToCommWriter.cc.

References asyncCall(), cbdataDialer(), debugs, HandleStoreAbort(), Comm::IsConnOpen(), Must, MYNAME, sc, and storeClientListAdd().

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

◆ 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(), Adaptation::AccessCheck::Start(), CacheManager::start(), Rock::Rebuild::Start(), JobWaitBase::start_(), BodyPipe::startAutoConsumptionIfNeeded(), Ftp::StartGateway(), Ftp::StartRelay(), 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, Adaptation::Ecap::XactionRep, Security::PeerConnector, Http::Tunneler, Adaptation::Initiate, Comm::TcpAcceptor, and Ipc::Inquirer.

Definition at line 182 of file AsyncJob.cc.

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

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

◆ swanSong()

void Mgr::StoreToCommWriter::swanSong ( )
overrideprotectedvirtual

Reimplemented from AsyncJob.

Definition at line 142 of file StoreToCommWriter.cc.

References debugs, MYNAME, sc, and storeUnregister().

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

◆ toCbdata()

virtual void* CbdataParent::toCbdata ( )
pure virtualinherited

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

Member Data Documentation

◆ buffer

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

Definition at line 69 of file StoreToCommWriter.h.

◆ clientConnection

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

Definition at line 62 of file StoreToCommWriter.h.

Referenced by HandleStoreAbort(), and StoreToCommWriter().

◆ closer

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

Definition at line 68 of file StoreToCommWriter.h.

Referenced by StoreToCommWriter().

◆ entry

StoreEntry* Mgr::StoreToCommWriter::entry
protected

Definition at line 64 of file StoreToCommWriter.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().

◆ sc

store_client* Mgr::StoreToCommWriter::sc
protected

Definition at line 65 of file StoreToCommWriter.h.

◆ started_

bool AsyncJob::started_ = false
protectedinherited

Definition at line 88 of file AsyncJob.h.

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

◆ 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::callEnd(), and AsyncJob::~AsyncJob().

◆ typeName

const char* AsyncJob::typeName
protectedinherited

Definition at line 85 of file AsyncJob.h.

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

◆ writeOffset

int64_t Mgr::StoreToCommWriter::writeOffset
protected

Definition at line 66 of file StoreToCommWriter.h.

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

 

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