#include <Store.h>

Inheritance diagram for StoreEntry:

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Collaboration diagram for StoreEntry:

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Public Member Functions
bool	checkDeferRead (int fd) const

const char *	getMD5Text () const

	StoreEntry ()

virtual	~StoreEntry ()

MemObject &	mem ()

const MemObject &	mem () const

const HttpReply *	hasFreshestReply () const

void	write (StoreIOBuffer)

bool	isEmpty () const

bool	isAccepting () const

size_t	bytesWanted (Range< size_t > const aRange, bool ignoreDelayPool=false) const

void	completeSuccessfully (const char *whyWeAreSureWeStoredTheWholeReply)

void	completeTruncated (const char *whyWeConsiderTheReplyTruncated)

void	complete ()

store_client_t	storeClientType () const

const char *	getSerialisedMetaData (size_t &length) const

void	storeErrorResponse (HttpReply *reply)
	Store a prepared error response. MemObject locks the reply object. More...

void	replaceHttpReply (const HttpReplyPointer &, const bool andStartWriting=true)

void	startWriting ()

bool	mayStartSwapOut ()
	whether we may start writing to disk (now or in the future) More...

void	trimMemory (const bool preserveSwappable)

void	memOutDecision (const bool willCacheInRam)

void	swapOutDecision (const MemObject::SwapOut::Decision &decision)

void	abort ()

bool	makePublic (const KeyScope keyScope=ksDefault)

void	makePrivate (const bool shareable)

void	clearPrivate ()

bool	setPublicKey (const KeyScope keyScope=ksDefault)

void	clearPublicKeyScope ()

const cache_key *	publicKey () const

void	setPrivateKey (const bool shareable, const bool permanent)

void	expireNow ()

void	releaseRequest (const bool shareable=false)

void	negativeCache ()

bool	cacheNegatively ()

void	invokeHandlers ()

void	cacheInMemory ()
	start or continue storing in memory cache More...

void	swapOut ()

bool	swappingOut () const
	whether we are in the process of writing this entry to disk More...

bool	swappedOut () const
	whether the entire entry is now on disk (possibly marked for deletion) More...

bool	swapoutFailed () const
	whether we failed to write this entry to disk More...

void	swapOutFileClose (int how)

const char *	url () const

bool	checkCachable ()

int	checkNegativeHit () const

int	locked () const

int	validToSend () const

bool	memoryCachable ()
	checkCachable() and can be cached in memory More...

void	createMemObject ()

void	createMemObject (const char storeId, const char logUri, const HttpRequestMethod &aMethod)
	initialize mem_obj with URIs/method; assert if mem_obj already exists More...

void	ensureMemObject (const char storeId, const char logUri, const HttpRequestMethod &aMethod)
	initialize mem_obj (if needed) and set URIs/method (if missing) More...

void	dump (int debug_lvl) const

void	hashDelete ()

void	hashInsert (const cache_key *)

void	registerAbortCallback (const AsyncCall::Pointer &)
	notify the StoreEntry writer of a 3rd-party initiated StoreEntry abort More...

void	reset ()

void	setMemStatus (mem_status_t)

bool	timestampsSet ()

void	unregisterAbortCallback (const char *reason)

void	destroyMemObject ()

int	checkTooSmall ()

void	setNoDelay (bool const)

void	lastModified (const time_t when)

time_t	lastModified () const

const char *	describeTimestamps () const

bool	modifiedSince (const time_t ims, const int imslen=-1) const

bool	hasIfMatchEtag (const HttpRequest &request) const
	has ETag matching at least one of the If-Match etags More...

bool	hasIfNoneMatchEtag (const HttpRequest &request) const
	has ETag matching at least one of the If-None-Match etags More...

bool	hasEtag (ETag &etag) const
	whether this entry has an ETag; if yes, puts ETag value into parameter More...

bool	updateOnNotModified (const StoreEntry &e304)

Store::Disk &	disk () const
	the disk this entry is [being] cached on; asserts for entries w/o a disk More...

bool	hasDisk (const sdirno dirn=-1, const sfileno filen=-1) const

void	attachToDisk (const sdirno, const sfileno, const swap_status_t)

void	detachFromDisk ()

bool	hasTransients () const
	whether there is a corresponding locked transients table entry More...

bool	hasMemStore () const
	whether there is a corresponding locked shared memory table entry More...

bool	hittingRequiresCollapsing () const
	whether this entry can feed collapsed requests and only them More...

void	setCollapsingRequirement (const bool required)
	allow or forbid collapsed requests feeding More...

void *	operator new (size_t byteCount)

void	operator delete (void *address)

int64_t	objectLen () const

int64_t	contentLen () const

void	lock (const char *context)

int	unlock (const char *context)

int	locks () const
	returns a local concurrent use counter, for debugging More...

void	touch ()
	update last reference timestamp and related Store metadata More...

void	release (const bool shareable=false)

void	abandon (const char *context)

bool	mayStartHitting () const

void	deferProducer (const AsyncCall::Pointer &producer)
	call back producer when more buffer space is available More...

void	kickProducer ()
	calls back producer registered with deferProducer More...

virtual void	append (char const *, int)
	Appends a c-string to existing packed data. More...

virtual void	vappendf (const char *, va_list)

virtual void	buffer ()

virtual void	flush ()

void	appendf (const char *fmt,...) PRINTF_FORMAT_ARG2
	Append operation with printf-style arguments. More...

Static Public Member Functions
static size_t	inUseCount ()

Public Attributes
MemObject *	mem_obj

RemovalPolicyNode	repl

time_t	timestamp

time_t	lastref

time_t	expires

uint64_t	swap_file_sz

uint16_t	refcount

uint16_t	flags

sfileno	swap_filen:25
	unique ID inside a cache_dir for swapped out entries; -1 for others More...

sdirno	swap_dirn:7

mem_status_t	mem_status:3

ping_status_t	ping_status:3

store_status_t	store_status:3

swap_status_t	swap_status:3

ESIElement::Pointer	cachedESITree

void *	key

hash_link *	next

Protected Types
typedef Store::EntryGuard	EntryGuard

Protected Member Functions
void	transientsAbandonmentCheck ()

void	checkDisk () const
	does nothing except throwing if disk-associated data members are inconsistent More...

Private Member Functions
void	doAbandon (const char *context)

bool	checkTooBig () const

void	forcePublicKey (const cache_key *newkey)

StoreEntry *	adjustVary ()

const cache_key *	calcPublicKey (const KeyScope keyScope)

void	lengthWentBad (const char *reason)
	flags [truncated or too big] entry with ENTRY_BAD_LENGTH and releases it More...

bool	validLength () const

bool	hasOneOfEtags (const String &reqETags, const bool allowWeakMatch) const
	whether at least one of the request ETags matches entity ETag More...

Private Attributes
time_t	lastModified_
	received Last-Modified value or -1; use lastModified() More...

unsigned short	lock_count

bool	shareableWhenPrivate

AsyncCall::Pointer	deferredProducer
	producer callback registered with deferProducer More...

Static Private Attributes
static MemAllocator *	pool = NULL

Friends
std::ostream &	operator<< (std::ostream &os, const StoreEntry &e)

Detailed Description

Definition at line 41 of file Store.h.

Member Typedef Documentation

◆ EntryGuard

typedef Store::EntryGuard StoreEntry::EntryGuard

protected

Definition at line 304 of file Store.h.

Constructor & Destructor Documentation

◆ StoreEntry()

StoreEntry::StoreEntry ( )

Definition at line 311 of file store.cc.

References debugs.

◆ ~StoreEntry()

StoreEntry::~StoreEntry ( )

virtual

Definition at line 332 of file store.cc.

References debugs.

Member Function Documentation

◆ abandon()

void StoreEntry::abandon ( const char * context )

inline

One of the three methods to get rid of an unlocked StoreEntry object. May destroy this object if it is unlocked; does nothing otherwise. Unlike release(), may not trigger eviction of underlying store entries, but, unlike destroyStoreEntry(), does honor an earlier release request.

Definition at line 282 of file Store.h.

References doAbandon(), and locked().

Referenced by unlock().

◆ abort()

void StoreEntry::abort ( )

Definition at line 1052 of file store.cc.

References MemObject::abortCallback, StatCounters::aborted_requests, assert, debugs, EBIT_CLR, EBIT_SET, ENTRY_ABORTED, ENTRY_FWD_HDR_WAIT, flags, getMD5Text(), invokeHandlers(), lock(), mem_obj, negativeCache(), NOT_IN_MEMORY, NULL, releaseRequest(), ScheduleCallHere, setMemStatus(), statCounter, STORE_OK, STORE_PENDING, store_status, swapOutFileClose(), unlock(), and StoreIOState::writerGone.

Referenced by FwdState::connectedToPeer(), FwdState::dispatch(), peerCountMcastPeersAbort(), storeUnregister(), swapOut(), and Store::Controller::syncCollapsed().

◆ adjustVary()

StoreEntry * StoreEntry::adjustVary ( )

private

Updates mem_obj->request->vary_headers to reflect the current Vary. The vary_headers field is used to calculate the Vary marker key. Releases the old Vary marker with an outdated key (if any).

Returns: new (locked) Vary marker StoreEntry or, if none was needed, nil

Exceptions

std::exception on failures

Definition at line 640 of file store.cc.

References assert, completeSuccessfully(), MemObject::freshestReply(), Http::HDR_X_ACCELERATOR_VARY, Http::Message::header, httpMakeVaryMark(), SBuf::isEmpty(), MemObject::logUri(), makePublic(), mem_obj, MemObject::method, _request::method, HttpHeader::putStr(), replaceHttpReply(), MemObject::request, request(), Http::scOkay, HttpReply::setHeaders(), squid_curtime, startWriting(), storeCreateEntry(), storeGetPublic(), MemObject::storeId(), TexcHere, timestampsSet(), unlock(), Http::VARY, and MemObject::vary_headers.

Referenced by setPublicKey().

◆ append()

void StoreEntry::append	(	char const *	buf,
		int	size
	)

virtual

Implements Packable.

Reimplemented in CapturingStoreEntry.

Definition at line 778 of file store.cc.

References assert, MemObject::baseReply(), StoreIOBuffer::data, MemObject::endOffset(), Http::Message::hdr_sz, StoreIOBuffer::length, mem_obj, NULL, StoreIOBuffer::offset, STORE_PENDING, store_status, and write().

Referenced by Format::Format::dump(), dump_cache_log_message(), dump_SBufList(), DumpDirective(), DumpInfo(), gopherReadReply(), gopherToHTML(), internalStart(), MimeIcon::load(), netdbBinaryExchange(), WhoisState::readReply(), statObjects(), storeDigestCBlockSwapOut(), storeDigestSwapOutStep(), and vappendf().

◆ appendf()

void Packable::appendf	(	const char *	fmt,
			...
	)

inlineinherited

Definition at line 61 of file Packable.h.

References Packable::vappendf().

◆ attachToDisk()

void StoreEntry::attachToDisk	(	const sdirno	dirn,
		const sfileno	fno,
		const swap_status_t	status
	)

Makes hasDisk(dirn, filn) true. The caller should have locked the corresponding disk store entry for reading or writing.

Definition at line 1902 of file store.cc.

References checkDisk(), debugs, getMD5Text(), swap_dirn, swap_filen, swap_status, and swapStatusStr.

Referenced by Fs::Ufs::UFSSwapDir::addDiskRestore(), Rock::SwapDir::anchorEntry(), and storeSwapOutStart().

◆ buffer()

void StoreEntry::buffer ( )

virtual

disable sending content to the clients.

This just sets DELAY_SENDING.

Reimplemented from Packable.

Reimplemented in CapturingStoreEntry.

Definition at line 1579 of file store.cc.

References DELAY_SENDING, EBIT_SET, and flags.

Referenced by testRock::addEntry(), Mgr::Action::fillEntry(), gopherMimeCreate(), gopherSendComplete(), MimeIcon::load(), netdbBinaryExchange(), WhoisState::setReplyToOK(), startWriting(), statObjects(), storeDigestRewriteResume(), storeErrorResponse(), HttpRequest::swapOut(), testUfs::testUfsSearch(), clientReplyContext::traceReply(), and urnHandleReply().

◆ bytesWanted()

size_t StoreEntry::bytesWanted	(	Range< size_t > const	aRange,
		bool	ignoreDelayPool = `false`
	)		const

Definition at line 210 of file store.cc.

References Range< C, S >::end, mem_obj, MemObject::mostBytesWanted(), NULL, and MemObject::readAheadPolicyCanRead().

Referenced by checkDeferRead(), GopherStateData::DelayAwareRead(), Client::handleMoreAdaptedBodyAvailable(), ClientHttpRequest::noteMoreBodyDataAvailable(), and HttpStateData::readReply().

◆ cacheInMemory()

void StoreEntry::cacheInMemory ( )

◆ cacheNegatively()

bool StoreEntry::cacheNegatively ( )

Definition at line 185 of file store.cc.

References makePublic(), and negativeCache().

Referenced by HttpStateData::haveParsedReplyHeaders().

◆ calcPublicKey()

const cache_key * StoreEntry::calcPublicKey ( const KeyScope keyScope )

private

Calculates correct public key for feeding forcePublicKey(). Assumes adjustVary() has been called for this entry already.

Definition at line 627 of file store.cc.

References assert, RefCount< C >::getRaw(), mem_obj, MemObject::method, MemObject::request, MemObject::storeId(), storeKeyPublic(), and storeKeyPublicByRequest().

Referenced by clearPublicKeyScope(), and setPublicKey().

◆ checkCachable()

bool StoreEntry::checkCachable ( )

Satisfies cachability requirements shared among disk and RAM caches. Encapsulates common checks of mayStartSwapOut() and memoryCachable(). TODO: Rename and make private so only those two methods can call this.

Definition at line 904 of file store.cc.

Referenced by mayStartSwapOut(), memoryCachable(), and storeSwapOutFileClosed().

◆ checkDeferRead()

bool StoreEntry::checkDeferRead ( int fd ) const

Definition at line 228 of file store.cc.

References bytesWanted(), and INT_MAX.

Referenced by statObjects(), and swapOut().

◆ checkDisk()

void StoreEntry::checkDisk ( ) const

protected

Definition at line 1924 of file store.cc.

References SquidConfig::cacheSwap, Config, CurrentException(), DBG_IMPORTANT, debugs, EBIT_TEST, flags, Must, Store::DiskConfig::n_configured, RELEASE_REQUEST, swap_dirn, swap_filen, swap_status, SWAPOUT_NONE, swapoutFailed(), swappedOut(), and swappingOut().

Referenced by attachToDisk(), and hasDisk().

◆ checkNegativeHit()

int StoreEntry::checkNegativeHit ( ) const

Definition at line 1274 of file store.cc.

References EBIT_TEST, ENTRY_NEGCACHED, expires, flags, squid_curtime, STORE_OK, and store_status.

Referenced by clientReplyContext::cacheHit().

◆ checkTooBig()

bool StoreEntry::checkTooBig ( ) const

private

Definition at line 893 of file store.cc.

References MemObject::baseReply(), Http::Message::content_length, MemObject::endOffset(), mem_obj, and store_maxobjsize.

Referenced by checkCachable().

◆ checkTooSmall()

int StoreEntry::checkTooSmall ( )

Definition at line 876 of file store.cc.

References MemObject::baseReply(), Config, Http::Message::content_length, EBIT_TEST, ENTRY_SPECIAL, flags, mem(), mem_obj, SquidConfig::minObjectSize, MemObject::object_sz, SquidConfig::Store, STORE_OK, and store_status.

Referenced by checkCachable().

◆ clearPrivate()

void StoreEntry::clearPrivate ( )

A low-level method just resetting "private key" flags. To avoid key inconsistency please use forcePublicKey() or similar instead.

Definition at line 177 of file store.cc.

References assert, EBIT_CLR, EBIT_TEST, flags, KEY_PRIVATE, RELEASE_REQUEST, and shareableWhenPrivate.

Referenced by forcePublicKey().

◆ clearPublicKeyScope()

void StoreEntry::clearPublicKeyScope ( )

Resets existing public key to a public key with default scope, releasing the old default-scope entry (if any). Does nothing if the existing public key already has default scope.

Definition at line 584 of file store.cc.

References calcPublicKey(), EBIT_TEST, flags, forcePublicKey(), hash_link::key, KEY_PRIVATE, ksDefault, and storeKeyHashCmp.

Referenced by clientReplyContext::sendClientUpstreamResponse().

◆ complete()

void StoreEntry::complete ( )

Deprecated:: use either completeSuccessfully() or completeTruncated() instead

Definition at line 1006 of file store.cc.

References assert, current_time, debugs, EBIT_CLR, EBIT_TEST, MemObject::endOffset(), ENTRY_ABORTED, ENTRY_BAD_LENGTH, ENTRY_FWD_HDR_WAIT, flags, getMD5Text(), HttpRequest::hier, invokeHandlers(), lengthWentBad(), mem_obj, mem_status, MemObject::nclients, NOT_IN_MEMORY, MemObject::object_sz, MemObject::request, HierarchyLogEntry::store_complete_stop, STORE_OK, STORE_PENDING, store_status, and validLength().

Referenced by testRock::addEntry(), completeSuccessfully(), completeTruncated(), Mgr::Action::fillEntry(), ClientHttpRequest::handleAdaptedHeader(), internalStart(), MimeIcon::load(), netdbBinaryExchange(), clientReplyContext::processMiss(), clientReplyContext::purgeDoPurge(), clientReplyContext::sendNotModified(), CacheManager::start(), statObjects(), storeDigestRewriteFinish(), testUfs::testUfsSearch(), clientReplyContext::traceReply(), and urnHandleReply().

◆ completeSuccessfully()

void StoreEntry::completeSuccessfully ( const char * whyWeAreSureWeStoredTheWholeReply )

Signals that the entire response has been stored and no more append() calls should be expected; cf. completeTruncated().

Definition at line 992 of file store.cc.

References complete(), and debugs.

Referenced by adjustVary(), FwdState::completed(), ClientHttpRequest::endRequestSatisfaction(), and storeErrorResponse().

◆ completeTruncated()

void StoreEntry::completeTruncated ( const char * whyWeConsiderTheReplyTruncated )

Signals that a partial response (if any) has been stored but no more append() calls should be expected; cf. completeSuccessfully().

Definition at line 999 of file store.cc.

References complete(), and lengthWentBad().

Referenced by FwdState::completed(), and ClientHttpRequest::endRequestSatisfaction().

◆ contentLen()

int64_t StoreEntry::contentLen ( ) const

inline

Definition at line 256 of file Store.h.

References MemObject::baseReply(), Http::Message::hdr_sz, mem(), and objectLen().

Referenced by ClientHttpRequest::logRequest(), and storeLog().

◆ createMemObject() [1/2]

void StoreEntry::createMemObject ( )

initialize mem_obj; assert if mem_obj already exists avoid this method in favor of createMemObject(trio)!

Definition at line 1553 of file store.cc.

References assert, and mem_obj.

Referenced by MemStore::get(), Transients::get(), Rock::SwapDir::get(), storeCreatePureEntry(), testStoreController::testMaxSize(), testStoreHashIndex::testMaxSize(), testStoreController::testStats(), and testStoreHashIndex::testStats().

◆ createMemObject() [2/2]

void StoreEntry::createMemObject	(	const char *	storeId,
		const char *	logUri,
		const HttpRequestMethod &	aMethod
	)

Definition at line 1560 of file store.cc.

References assert, ensureMemObject(), and mem_obj.

◆ deferProducer()

void StoreEntry::deferProducer ( const AsyncCall::Pointer & producer )

Definition at line 339 of file store.cc.

Referenced by Client::handleMoreAdaptedBodyAvailable(), and ClientHttpRequest::noteMoreBodyDataAvailable().

◆ describeTimestamps()

const char * StoreEntry::describeTimestamps ( ) const

Returns: a formatted string with entry's timestamps

Definition at line 1963 of file store.cc.

References expires, lastModified_, lastref, LOCAL_ARRAY, and timestamp.

Referenced by statStoreEntry(), and timestampsSet().

◆ destroyMemObject()

void StoreEntry::destroyMemObject ( )

Definition at line 359 of file store.cc.

References debugs, hasMemStore(), hasTransients(), mem_obj, Store::Controller::memoryDisconnect(), NOT_IN_MEMORY, NULL, Store::Root(), setMemStatus(), shutting_down, and Store::Controller::transientsDisconnect().

Referenced by destroyStoreEntry(), MemStore::evictCached(), and Store::Controller::memoryEvictCached().

◆ detachFromDisk()

void StoreEntry::detachFromDisk ( )

Makes hasDisk() false. The caller should have unlocked the corresponding disk store entry.

Definition at line 1916 of file store.cc.

References swap_dirn, swap_filen, swap_status, and SWAPOUT_NONE.

Referenced by Rock::SwapDir::disconnect(), and Fs::Ufs::UFSSwapDir::evictCached().

◆ disk()

Store::Disk & StoreEntry::disk ( ) const

Definition at line 1882 of file store.cc.

References assert, hasDisk(), INDEXSD, and swap_dirn.

Referenced by Store::Disks::dereference(), destroyStoreEntry(), Store::Disks::evictCached(), Store::Disks::reference(), storeCleanup(), storeDirSwapLog(), storeOpen(), storeSwapOutFileClosed(), Store::Disks::updateAnchored(), and Store::Disks::updateHeaders().

◆ doAbandon()

void StoreEntry::doAbandon ( const char * context )

private

keep the unlocked StoreEntry object in the local store_table (if needed) or delete it (otherwise)

Definition at line 461 of file store.cc.

References assert, debugs, EBIT_TEST, flags, Store::Controller::handleIdleEntry(), locked(), release(), RELEASE_REQUEST, Store::Root(), STORE_PENDING, store_status, and storePendingNClients().

Referenced by abandon().

◆ dump()

void StoreEntry::dump ( int debug_lvl ) const

Definition at line 1477 of file store.cc.

References debugs, expires, getMD5Text(), lastModified_, lastref, lock_count, mem_obj, mem_status, hash_link::next, ping_status, refcount, store_status, storeEntryFlags(), swap_dirn, swap_file_sz, swap_filen, swap_status, and timestamp.

Referenced by clientReplyContext::buildReplyHeader(), Fs::Ufs::UFSSwapDir::dumpEntry(), and clientReplyContext::processMiss().

◆ ensureMemObject()

void StoreEntry::ensureMemObject	(	const char *	storeId,
		const char *	logUri,
		const HttpRequestMethod &	aMethod
	)

Definition at line 1567 of file store.cc.

References mem_obj, and MemObject::setUris().

Referenced by createMemObject(), clientReplyContext::doGetMoreData(), peerDigestRequest(), and clientReplyContext::processExpired().

◆ expireNow()

void StoreEntry::expireNow ( )

Definition at line 748 of file store.cc.

References debugs, expires, getMD5Text(), and squid_curtime.

◆ flush()

void StoreEntry::flush ( )

virtual

flush any buffered content.

This just clears DELAY_SENDING and Invokes the handlers to begin sending anything that may be buffered.

Reimplemented from Packable.

Reimplemented in CapturingStoreEntry.

Definition at line 1590 of file store.cc.

References DELAY_SENDING, EBIT_CLR, EBIT_TEST, flags, and invokeHandlers().

Referenced by testRock::addEntry(), Mgr::Action::fillEntry(), gopherReadReply(), gopherSendComplete(), gopherToHTML(), MimeIcon::load(), netdbBinaryExchange(), WhoisState::readReply(), startWriting(), statObjects(), storeDigestRewriteResume(), storeErrorResponse(), HttpRequest::swapOut(), and testUfs::testUfsSearch().

◆ forcePublicKey()

void StoreEntry::forcePublicKey ( const cache_key * newkey )

private

Unconditionally sets public key for this store entry. Releases the old entry with the same public key (if any).

Definition at line 601 of file store.cc.

References assert, clearPrivate(), debugs, hasDisk(), hash_lookup(), hashDelete(), hashInsert(), MemObject::hasUris(), hash_link::key, mem_obj, store_table, storeDirSwapLog(), storeKeyText(), and SWAP_LOG_ADD.

Referenced by clearPublicKeyScope(), and setPublicKey().

◆ getMD5Text()

const char * StoreEntry::getMD5Text ( ) const

◆ getSerialisedMetaData()

char const * StoreEntry::getSerialisedMetaData ( size_t & length ) const

Returns: a malloc()ed buffer containing a length-long packed swap header

Definition at line 1730 of file store.cc.

References assert, storeSwapMetaBuild(), storeSwapMetaPack(), and storeSwapTLVFree().

Referenced by storeSwapOutStart().

◆ hasDisk()

bool StoreEntry::hasDisk	(	const sdirno	dirn = `-1`,
		const sfileno	filen = `-1`
	)		const

whether one of this StoreEntry owners has locked the corresponding disk entry (at the specified disk entry coordinates, if any)

Definition at line 1891 of file store.cc.

References checkDisk(), Must, swap_dirn, and swap_filen.

Referenced by store_client::store_client(), MemStore::anchorEntry(), Store::Disk::canLog(), checkCachable(), Store::Controller::dereferenceIdle(), destroyStoreEntry(), Rock::SwapDir::disconnect(), disk(), Rock::SwapDir::evictCached(), Fs::Ufs::UFSSwapDir::evictCached(), Store::Disks::evictCached(), forcePublicKey(), mayStartSwapOut(), store_client::moreToSend(), neighborsUdpPing(), Rock::SwapDir::openStoreIO(), Store::Controller::referenceBusy(), release(), Fs::Ufs::UFSSwapDir::replacementRemove(), storeCleanup(), storeDirSwapLog(), storeSwapInStart(), storeSwapOutStart(), swapOut(), Store::Controller::syncCollapsed(), Rock::SwapDir::updateAnchored(), Store::Disks::updateAnchored(), and validToSend().

◆ hasEtag()

bool StoreEntry::hasEtag ( ETag & etag ) const

Definition at line 1824 of file store.cc.

References Http::ETAG, hasFreshestReply(), and ETag::str.

Referenced by clientReplyContext::processExpired().

◆ hasFreshestReply()

const HttpReply* StoreEntry::hasFreshestReply ( ) const

inline

Return values

*	the address of freshest reply (if mem_obj exists)
nullptr	when mem_obj does not exist

See also: MemObject::freshestReply()

Definition at line 57 of file Store.h.

References MemObject::freshestReply(), and mem_obj.

Referenced by hasEtag(), and refreshCheck().

◆ hashDelete()

void StoreEntry::hashDelete ( )

Definition at line 408 of file store.cc.

References hash_remove_link(), hash_link::key, NULL, store_table, and storeKeyFree().

Referenced by destroyStoreEntry(), forcePublicKey(), and setPrivateKey().

◆ hashInsert()

void StoreEntry::hashInsert ( const cache_key * someKey )

Definition at line 399 of file store.cc.

References assert, debugs, hash_join(), hash_link::key, store_table, storeKeyDup(), and storeKeyText().

Referenced by Fs::Ufs::UFSSwapDir::addDiskRestore(), addedEntry(), Store::Controller::addReading(), forcePublicKey(), and setPrivateKey().

◆ hasIfMatchEtag()

bool StoreEntry::hasIfMatchEtag ( const HttpRequest & request ) const

Definition at line 1835 of file store.cc.

References hasOneOfEtags(), Http::IF_MATCH, and request().

Referenced by clientReplyContext::processConditional().

◆ hasIfNoneMatchEtag()

bool StoreEntry::hasIfNoneMatchEtag ( const HttpRequest & request ) const

Definition at line 1842 of file store.cc.

References hasOneOfEtags(), Http::IF_NONE_MATCH, _request::method, Http::METHOD_GET, Http::METHOD_HEAD, and request().

Referenced by clientReplyContext::processConditional().

◆ hasMemStore()

bool StoreEntry::hasMemStore ( ) const

inline

Definition at line 211 of file Store.h.

References MemObject::MemCache::index, mem_obj, and MemObject::memCache.

Referenced by destroyMemObject(), MemStore::disconnect(), MemStore::evictCached(), operator<<(), Store::Controller::syncCollapsed(), transientsAbandonmentCheck(), and MemStore::updateAnchored().

◆ hasOneOfEtags()

bool StoreEntry::hasOneOfEtags	(	const String &	reqETags,
		const bool	allowWeakMatch
	)		const

private

Definition at line 1853 of file store.cc.

References String::append(), Http::ETAG, etagIsStrongEqual(), etagIsWeakEqual(), etagParseInit(), MemObject::freshestReply(), HttpHeader::getETag(), Http::Message::header, mem(), NULL, strListGetItem(), strListIsMember(), and String::termedBuf().

Referenced by hasIfMatchEtag(), and hasIfNoneMatchEtag().

◆ hasTransients()

bool StoreEntry::hasTransients ( ) const

inline

Definition at line 209 of file Store.h.

References MemObject::XitTable::index, mem_obj, and MemObject::xitTable.

◆ hittingRequiresCollapsing()

bool StoreEntry::hittingRequiresCollapsing ( ) const

inline

Definition at line 214 of file Store.h.

References EBIT_TEST, ENTRY_REQUIRES_COLLAPSING, and flags.

Referenced by Store::Controller::allowSharing(), Store::Controller::checkFoundCandidate(), ICPState::confirmAndPrepHit(), Store::Controller::dereferenceIdle(), Ipc::StoreMapAnchor::exportInto(), StoreClient::startCollapsingOn(), startWriting(), and Store::Controller::syncCollapsed().

◆ inUseCount()

size_t StoreEntry::inUseCount ( )

static

Definition at line 196 of file store.cc.

References MemAllocator::getInUseCount(), and pool.

Referenced by Store::Controller::getStats(), snmp_prfSysFn(), Store::Controller::stat(), and storeDigestCalcCap().

◆ invokeHandlers()

void StoreEntry::invokeHandlers ( )

Definition at line 788 of file store_client.cc.

References MemObject::clients, CodeContext::Current(), debugs, DELAY_SENDING, EBIT_TEST, ENTRY_FWD_HDR_WAIT, flags, getMD5Text(), dlink_list::head, mem_obj, MemObject::nclients, node::next, NULL, CodeContext::Reset(), sc, storeClientCopy2(), and swapOut().

Referenced by abort(), complete(), flush(), Store::Controller::syncCollapsed(), and write().

◆ isAccepting()

bool StoreEntry::isAccepting ( ) const

Definition at line 1951 of file store.cc.

References EBIT_TEST, ENTRY_ABORTED, flags, STORE_PENDING, and store_status.

Referenced by Client::abortOnBadEntry(), Store::Controller::checkFoundCandidate(), gopherReadReply(), gopherSendComplete(), HttpStateData::processReplyBody(), WhoisState::readReply(), and urnHandleReply().

◆ isEmpty()

bool StoreEntry::isEmpty ( ) const

inline

Check if the Store entry is empty

Return values

true	Store contains 0 bytes of data.
false	Store contains 1 or more bytes of data.
false	Store contains negative content !!!!!!

Definition at line 66 of file Store.h.

References MemObject::endOffset(), and mem().

Referenced by FwdState::checkRetry(), FwdState::completed(), Ssl::ServerBump::connectedOk(), errorAppendEntry(), gopherMimeCreate(), gopherReadReply(), Client::handleAdaptationAborted(), Client::handleAdaptationBlocked(), ClientHttpRequest::handleAdaptationFailure(), Client::handledEarlyAdaptationAbort(), HttpStateData::handleRequestBodyProducerAborted(), FwdState::retryOrBail(), ConnStateData::serveDelayedError(), startWriting(), and storeClientType().

◆ kickProducer()

void StoreEntry::kickProducer ( )

Definition at line 349 of file store.cc.

References deferredProducer, NULL, and ScheduleCallHere.

Referenced by store_client::copy(), and storeUnregister().

◆ lastModified() [1/2]

time_t StoreEntry::lastModified ( ) const

inline

Returns: entry's 'effective' modification time

Definition at line 176 of file Store.h.

References lastModified_, and timestamp.

Referenced by modifiedSince(), and timestampsSet().

◆ lastModified() [2/2]

void StoreEntry::lastModified ( const time_t when )

inline

Definition at line 174 of file Store.h.

References lastModified_.

Referenced by Fs::Ufs::UFSSwapDir::addDiskRestore(), addedEntry(), clientReplyContext::cacheHit(), Ipc::StoreMapAnchor::exportInto(), htcpTstReply(), Fs::Ufs::UFSSwapDir::logEntry(), InitStoreEntry::operator()(), peerDigestFetchSetStats(), peerDigestRequest(), clientReplyContext::processExpired(), Fs::Ufs::RebuildState::rebuildFromDirectory(), refreshIsCachable(), refreshStaleness(), Ipc::StoreMapAnchor::set(), and UFSCleanLog::write().

◆ lengthWentBad()

void StoreEntry::lengthWentBad ( const char * reason )

private

Definition at line 984 of file store.cc.

References debugs, EBIT_SET, ENTRY_BAD_LENGTH, flags, and releaseRequest().

Referenced by complete(), and completeTruncated().

◆ lock()

void StoreEntry::lock ( const char * context )

claim shared ownership of this entry (for use in a given context) matching lock() and unlock() contexts eases leak triage but is optional

Definition at line 420 of file store.cc.

References debugs, getMD5Text(), and lock_count.

Referenced by Client::Client(), Mgr::Forwarder::Forwarder(), FwdState::FwdState(), GopherStateData::GopherStateData(), Rock::IoState::IoState(), Ssl::ServerBump::ServerBump(), Ipc::StoreMapUpdate::StoreMapUpdate(), abort(), store_client::copy(), clientReplyContext::doGetMoreData(), clientReplyContext::forgetHit(), heap_purgeNext(), MimeIcon::load(), ClientHttpRequest::loggingEntry(), peerDigestRequest(), clientReplyContext::processExpired(), release(), clientReplyContext::setReplyToStoreEntry(), UrnState::start(), statObjectsStart(), storeCreateEntry(), storeErrorResponse(), storeSwapOutStart(), storeUnregister(), testPackableStream::testGetStream(), and whoisStart().

◆ locked()

int StoreEntry::locked ( ) const

inline

◆ locks()

int StoreEntry::locks ( ) const

inline

Definition at line 267 of file Store.h.

References lock_count.

Referenced by operator<<(), and statStoreEntry().

◆ makePrivate()

void StoreEntry::makePrivate ( const bool shareable )

Definition at line 171 of file store.cc.

References releaseRequest().

Referenced by gopherSendRequest(), HttpStateData::haveParsedReplyHeaders(), HttpStateData::processSurrogateControl(), and WhoisState::readReply().

◆ makePublic()

bool StoreEntry::makePublic ( const KeyScope keyScope = ksDefault )

Definition at line 164 of file store.cc.

References EBIT_TEST, flags, RELEASE_REQUEST, and setPublicKey().

Referenced by adjustVary(), Store::Controller::allowCollapsing(), cacheNegatively(), gopherSendRequest(), Ftp::Gateway::haveParsedReplyHeaders(), HttpStateData::haveParsedReplyHeaders(), and WhoisState::readReply().

◆ mayStartHitting()

bool StoreEntry::mayStartHitting ( ) const

inline

May the caller commit to treating this [previously locked] entry as a cache hit?

Definition at line 286 of file Store.h.

References EBIT_TEST, flags, KEY_PRIVATE, and shareableWhenPrivate.

Referenced by clientReplyContext::cacheHit(), and clientReplyContext::handleIMSReply().

◆ mayStartSwapOut()

bool StoreEntry::mayStartSwapOut ( )

◆ mem() [1/2]

MemObject& StoreEntry::mem ( )

inline

Definition at line 51 of file Store.h.

References assert, and mem_obj.

Referenced by testRock::addEntry(), asHandleReply(), Client::blockCaching(), clientReplyContext::blockedHit(), checkTooSmall(), clientReplyContext::cloneReply(), FwdState::complete(), contentLen(), MemStore::copyFromShmSlice(), testRock::createEntry(), GopherStateData::DelayAwareRead(), Client::delayRead(), clientReplyContext::handleIMSReply(), hasOneOfEtags(), isEmpty(), netdbExchangeHandleReply(), objectLen(), peerDigestFetchReply(), peerDigestSwapInHeaders(), HttpStateData::peerSupportsConnectionPinning(), clientReplyContext::processConditional(), store_client::readBody(), FwdState::reforward(), clientReplyContext::replyStatus(), reset(), clientReplyContext::sendNotModified(), testUfs::testUfsSearch(), timestampsSet(), MemStore::updateHeadersOrThrow(), and varyEvaluateMatch().

◆ mem() [2/2]

const MemObject& StoreEntry::mem ( ) const

inline

Definition at line 52 of file Store.h.

References assert, and mem_obj.

◆ memoryCachable()

bool StoreEntry::memoryCachable ( )

Definition at line 1253 of file store.cc.

References checkCachable(), Config, MemObject::data_hdr, MemObject::inmem_lo, mem_obj, SquidConfig::memory_cache_first, NULL, SquidConfig::onoff, refcount, mem_hdr::size(), and swappedOut().

Referenced by Store::Controller::keepForLocalMemoryCache(), and MemStore::shouldCache().

◆ memOutDecision()

void StoreEntry::memOutDecision ( const bool willCacheInRam )

Definition at line 1761 of file store.cc.

References transientsAbandonmentCheck().

Referenced by MemStore::startCaching(), and MemStore::write().

◆ modifiedSince()

bool StoreEntry::modifiedSince	(	const time_t	ims,
		const int	imslen = `-1`
	)		const

Definition at line 1798 of file store.cc.

References assert, debugs, lastModified(), and url().

Referenced by clientIfRangeMatch(), clientReplyContext::handleIMSReply(), and clientReplyContext::processConditional().

◆ negativeCache()

void StoreEntry::negativeCache ( )

Set object for negative caching. Preserves any expiry information given by the server. In absence of proper expiry info it will set to expire immediately, or with HTTP-violations enabled the configured negative-TTL is observed

Definition at line 1295 of file store.cc.

References Config, debugs, EBIT_SET, ENTRY_NEGCACHED, expires, flags, SquidConfig::negativeTtl, and squid_curtime.

Referenced by abort(), cacheNegatively(), and storeErrorResponse().

◆ objectLen()

int64_t StoreEntry::objectLen ( ) const

inline

Definition at line 255 of file Store.h.

References mem(), and MemObject::object_sz.

Referenced by contentLen(), store_client::moreToSend(), store_client::readBody(), clientReplyContext::storeOKTransferDone(), storeSwapOutFileClosed(), validLength(), and Http::Stream::writeComplete().

◆ operator delete()

void StoreEntry::operator delete ( void * address )

Definition at line 158 of file store.cc.

◆ operator new()

void * StoreEntry::operator new ( size_t byteCount )

Definition at line 146 of file store.cc.

References assert, and memPoolCreate.

◆ publicKey()

const cache_key* StoreEntry::publicKey ( ) const

inline

Returns: public key (if the entry has it) or nil (otherwise)

Definition at line 111 of file Store.h.

References EBIT_TEST, flags, hash_link::key, and KEY_PRIVATE.

Referenced by Rock::SwapDir::evictCached(), MemStore::evictCached(), and Store::Disks::evictCached().

◆ registerAbortCallback()

void StoreEntry::registerAbortCallback ( const AsyncCall::Pointer & handler )

Definition at line 1459 of file store.cc.

References MemObject::abortCallback, assert, handler(), and mem_obj.

Referenced by Ftp::Relay::Relay(), and FwdState::start().

◆ release()

void StoreEntry::release ( const bool shareable = false )

One of the three methods to get rid of an unlocked StoreEntry object. Removes all unlocked (and marks for eventual removal all locked) Store entries, including attached and unattached entries that have our key. Also destroys us if we are unlocked or makes us private otherwise.

Definition at line 1122 of file store.cc.

References debugs, destroyStoreEntry(), Store::Controller::evictCached(), getMD5Text(), hasDisk(), LateReleaseStack, lock(), locked(), releaseRequest(), Store::Root(), Store::Controller::store_dirs_rebuilding, STORE_LOG_RELEASE, and storeLog().

Referenced by doAbandon(), Store::Controller::handleIdleEntry(), Ftp::Gateway::haveParsedReplyHeaders(), httpMaybeRemovePublic(), Fs::Ufs::UFSSwapDir::maintain(), clientReplyContext::purgeEntry(), Client::setFinalReply(), Store::Controller::syncCollapsed(), and testRock::testRockSwapOut().

◆ releaseRequest()

void StoreEntry::releaseRequest ( const bool shareable = false )

Makes the StoreEntry private and marks the corresponding entry for eventual removal from the Store.

Definition at line 433 of file store.cc.

References debugs, and shareableWhenPrivate.

Referenced by HttpStateData::HttpStateData(), Ftp::Relay::Relay(), abort(), checkCachable(), htcpClrStoreEntry(), lengthWentBad(), makePrivate(), Store::EntryGuard::onException(), peerDigestFetchFinish(), peerDigestFetchReply(), clientReplyContext::processMiss(), release(), storeErrorResponse(), storeSwapOutFileClosed(), and clientReplyContext::traceReply().

◆ replaceHttpReply()

void StoreEntry::replaceHttpReply	(	const HttpReplyPointer &	rep,
		const bool	andStartWriting = `true`
	)

◆ reset()

void StoreEntry::reset ( )

Definition at line 1599 of file store.cc.

References debugs, expires, lastModified_, mem(), MemObject::reset(), timestamp, and url().

Referenced by FwdState::complete(), and HttpStateData::continueAfterParsingHeader().

◆ setCollapsingRequirement()

void StoreEntry::setCollapsingRequirement ( const bool required )

Definition at line 1975 of file store.cc.

References EBIT_CLR, EBIT_SET, ENTRY_REQUIRES_COLLAPSING, and flags.

Referenced by Store::Controller::allowCollapsing(), Transients::anchorEntry(), Ipc::StoreMapAnchor::exportInto(), startWriting(), and Store::Controller::syncCollapsed().

◆ setMemStatus()

void StoreEntry::setMemStatus ( mem_status_t new_status )

Definition at line 1502 of file store.cc.

References RemovalPolicy::Add, assert, debugs, EBIT_TEST, MemStore::Enabled(), ENTRY_SPECIAL, flags, getMD5Text(), hot_obj_count, IN_MEMORY, MemObject::inmem_lo, mem_obj, mem_policy, mem_status, NULL, RemovalPolicy::Remove, and MemObject::repl.

Referenced by abort(), Fs::Ufs::UFSSwapDir::addDiskRestore(), addedEntry(), MemStore::anchorEntry(), MemStore::copyFromShm(), destroyMemObject(), and Store::Controller::handleIdleEntry().

◆ setNoDelay()

void StoreEntry::setNoDelay ( bool const newValue )

Definition at line 234 of file store.cc.

References mem_obj, and MemObject::setNoDelay().

Referenced by HttpStateData::HttpStateData().

◆ setPrivateKey()

void StoreEntry::setPrivateKey	(	const bool	shareable,
		const bool	permanent
	)

Either fills this entry with private key or changes the existing key from public to private.

Parameters

permanent whether this entry should be private forever.

Definition at line 523 of file store.cc.

References assert, debugs, EBIT_SET, EBIT_TEST, Store::Controller::evictCached(), flags, getKeyCounter(), hash_lookup(), hashDelete(), hashInsert(), MemObject::hasUris(), MemObject::id, hash_link::key, KEY_PRIVATE, mem_obj, NULL, RELEASE_REQUEST, Store::Root(), shareableWhenPrivate, store_table, and storeKeyPrivate().

Referenced by storeCreateEntry().

◆ setPublicKey()

bool StoreEntry::setPublicKey ( const KeyScope keyScope = ksDefault )

Definition at line 550 of file store.cc.

References Store::Controller::addWriting(), adjustVary(), assert, calcPublicKey(), debugs, EBIT_TEST, flags, forcePublicKey(), hash_link::key, KEY_PRIVATE, mem_obj, RELEASE_REQUEST, Store::Root(), and Store::EntryGuard::unlockAndReset().

Referenced by testRock::createEntry(), MimeIcon::load(), makePublic(), storeCreateEntry(), storeDigestRewriteResume(), and testUfs::testUfsSearch().

◆ startWriting()

void StoreEntry::startWriting ( )

pack and write reply headers and, maybe, body

Definition at line 1699 of file store.cc.

References assert, MemObject::baseReply(), buffer(), flush(), hittingRequiresCollapsing(), isEmpty(), MemObject::markEndOfReplyHeaders(), mem_obj, Store::Root(), setCollapsingRequirement(), Store::Controller::transientsClearCollapsingRequirement(), and MemObject::updatedReply().

Referenced by adjustVary(), replaceHttpReply(), and Client::setFinalReply().

◆ storeClientType()

store_client_t StoreEntry::storeClientType ( ) const

Definition at line 248 of file store.cc.

References assert, DBG_IMPORTANT, debugs, EBIT_TEST, MemObject::endOffset(), ENTRY_ABORTED, flags, MemObject::inmem_lo, isEmpty(), mem_obj, MemObject::nclients, MemObject::object_sz, STORE_DISK_CLIENT, STORE_MEM_CLIENT, STORE_OK, store_status, swap_status, SWAPOUT_NONE, swapoutFailed(), and swappedOut().

◆ storeErrorResponse()

void StoreEntry::storeErrorResponse ( HttpReply * reply )

Definition at line 1666 of file store.cc.

References buffer(), completeSuccessfully(), flush(), lock(), negativeCache(), releaseRequest(), replaceHttpReply(), and unlock().

Referenced by errorAppendEntry(), and clientReplyContext::setReplyToReply().

◆ swapOut()

void StoreEntry::swapOut ( )

Definition at line 160 of file store_swapout.cc.

References abort(), assert, MemObject::availableForSwapOut(), checkDeferRead(), DBG_CRITICAL, debugs, MemObject::SwapOut::decision, doPages(), EBIT_TEST, MemObject::endOffset(), ENTRY_ABORTED, flags, hasDisk(), MemObject::inmem_lo, MemObject::lowestMemReaderOffset(), mayStartSwapOut(), mem_obj, Store::Controller::memoryOut(), NULL, MemObject::object_sz, MemObject::objectBytesOnDisk(), StoreIOState::offset(), MemObject::SwapOut::queue_offset, RELEASE_REQUEST, Store::Root(), MemObject::SwapOut::sio, SM_PAGE_SIZE, STORE_OK, STORE_PENDING, store_status, storeSwapOutStart(), storeTooManyDiskFilesOpen(), MemObject::swapout, swapOutFileClose(), swappingOut(), MemObject::SwapOut::swPossible, url(), and StoreIOState::wroteAll.

Referenced by testRock::addEntry(), invokeHandlers(), storeUnregister(), and testUfs::testUfsSearch().

◆ swapOutDecision()

void StoreEntry::swapOutDecision ( const MemObject::SwapOut::Decision & decision )

Definition at line 1767 of file store.cc.

References assert, MemObject::SwapOut::decision, mem_obj, MemObject::swapout, and transientsAbandonmentCheck().

Referenced by mayStartSwapOut(), and storeSwapOutStart().

◆ swapoutFailed()

bool StoreEntry::swapoutFailed ( ) const

inline

Definition at line 136 of file Store.h.

References swap_status, and SWAPOUT_FAILED.

Referenced by store_client::store_client(), checkDisk(), storeClientType(), storeSwapInStart(), and storeUnregister().

◆ swapOutFileClose()

void StoreEntry::swapOutFileClose ( int how )

Definition at line 264 of file store_swapout.cc.

References assert, debugs, getMD5Text(), RefCount< C >::getRaw(), mem_obj, NULL, MemObject::SwapOut::sio, storeClose(), and MemObject::swapout.

Referenced by abort(), and swapOut().

◆ swappedOut()

bool StoreEntry::swappedOut ( ) const

inline

Definition at line 134 of file Store.h.

References swap_status, and SWAPOUT_DONE.

Referenced by Store::Disk::canLog(), checkDisk(), Fs::Ufs::UFSSwapDir::evictCached(), Store::Controller::handleIdleEntry(), memoryCachable(), storeClientType(), and storeUnregister().

◆ swappingOut()

bool StoreEntry::swappingOut ( ) const

inline

Definition at line 132 of file Store.h.

References swap_status, and SWAPOUT_WRITING.

Referenced by checkDisk(), doPages(), store_client::fileRead(), mayStartSwapOut(), storeSwapOutFileClosed(), swapOut(), and validToSend().

◆ timestampsSet()

bool StoreEntry::timestampsSet ( )

◆ touch()

void StoreEntry::touch ( )

Definition at line 427 of file store.cc.

References lastref, and squid_curtime.

◆ transientsAbandonmentCheck()

void StoreEntry::transientsAbandonmentCheck ( )

protected

Abandon the transient entry our worker has created if neither the shared memory cache nor the disk cache wants to store it. Collapsed requests, if any, should notice and use Plan B instead of getting stuck waiting for us to start swapping the entry out.

Definition at line 1748 of file store.cc.

References debugs, MemObject::SwapOut::decision, hasMemStore(), hasTransients(), mem_obj, Store::Root(), shutting_down, Store::Controller::stopSharing(), MemObject::swapout, and MemObject::SwapOut::swImpossible.

Referenced by memOutDecision(), and swapOutDecision().

◆ trimMemory()

void StoreEntry::trimMemory ( const bool preserveSwappable )

Definition at line 1776 of file store.cc.

References debugs, EBIT_TEST, ENTRY_SPECIAL, flags, IN_MEMORY, MemObject::inmem_lo, mem_obj, mem_status, MemObject::trimSwappable(), and MemObject::trimUnSwappable().

Referenced by Store::Controller::memoryOut().

◆ unlock()

int StoreEntry::unlock ( const char * context )

disclaim shared ownership; may remove entry from store and delete it returns remaining lock level (zero for unlocked and possibly gone entry)

Definition at line 444 of file store.cc.

References abandon(), assert, debugs, getMD5Text(), and lock_count.

Referenced by Client::~Client(), DigestFetchState::~DigestFetchState(), FwdState::~FwdState(), GopherStateData::~GopherStateData(), netdbExchangeState::~netdbExchangeState(), PeerSelector::~PeerSelector(), UrnState::~UrnState(), abort(), adjustVary(), store_client::copy(), ClientHttpRequest::doCallouts(), clientReplyContext::forgetHit(), heap_purgeDone(), ClientHttpRequest::loggingEntry(), Store::EntryGuard::onException(), peerCountMcastPeersAbort(), peerDigestFetchFinish(), peerDigestFetchReply(), clientReplyContext::removeStoreReference(), statObjects(), storeDigestRewriteResume(), storeErrorResponse(), storeLateRelease(), storeSwapOutFileClosed(), storeUnregister(), testRock::testRockSwapOut(), testUfs::testUfsSearch(), Store::EntryGuard::unlockAndReset(), and whoisClose().

◆ unregisterAbortCallback()

void StoreEntry::unregisterAbortCallback ( const char * reason )

Avoid notifying anybody about a 3rd-party initiated StoreEntry abort. Calling this method does not cancel the already queued notification. TODO: Refactor to represent the end of (shared) ownership by our writer.

Definition at line 1467 of file store.cc.

References MemObject::abortCallback, assert, AsyncCall::cancel(), and mem_obj.

Referenced by FwdState::~FwdState().

◆ updateOnNotModified()

bool StoreEntry::updateOnNotModified ( const StoreEntry & e304 )

Updates easily-accessible non-Store-specific parts of the entry. Use Controller::updateOnNotModified() instead of this helper.

Returns: whether anything was actually updated

Definition at line 1436 of file store.cc.

References MemObject::appliedUpdates, assert, MemObject::baseReply(), debugs, MemObject::freshestReply(), mem_obj, HttpReply::recreateOnNotModified(), timestampsSet(), and MemObject::updateReply().

Referenced by Store::Controller::updateOnNotModified().

◆ url()

const char * StoreEntry::url ( ) const

Definition at line 1544 of file store.cc.

References mem_obj, NULL, and MemObject::storeId().

Referenced by FwdState::FwdState(), Ftp::Gateway::Gateway(), netdbExchangeState::~netdbExchangeState(), PeerSelector::~PeerSelector(), asHandleReply(), FwdState::complete(), FwdState::connectStart(), HttpStateData::continueAfterParsingHeader(), FwdState::dispatch(), FwdState::fail(), ftpSendReply(), gopherSendComplete(), gopherStart(), gopherTimeout(), gopherToHTML(), clientReplyContext::handleIMSReply(), HttpStateData::handleMoreRequestBodyAvailable(), FwdState::handleUnregisteredServerEnd(), htcpClrStoreEntry(), htcpQuery(), HttpStateData::httpBuildRequestHeader(), httpStart(), HttpStateData::httpTimeout(), HttpStateData::keepaliveAccounting(), mayStartSwapOut(), modifiedSince(), neighborsUdpPing(), peerSelect(), peerSelectIcpPing(), clientReplyContext::purgeEntry(), WhoisState::readReply(), FwdState::reforward(), replaceHttpReply(), reset(), clientReplyContext::sendMoreData(), CacheManager::start(), FwdState::Start(), UrnState::start(), HttpStateData::statusIfComplete(), storeDigestDel(), storeSwapMetaBuild(), storeSwapOutFileClosed(), storeSwapOutStart(), swapOut(), FwdState::unregister(), PeerSelector::url(), urnHandleReply(), FwdState::useDestinations(), and whoisTimeout().

◆ validLength()

bool StoreEntry::validLength ( ) const

private

whether the base response has all the body bytes we expect

Returns: true for responses with unknown/unspecified body length; true for responses with the right number of accumulated body bytes

Definition at line 1180 of file store.cc.

References assert, MemObject::baseReply(), debugs, getMD5Text(), mem_obj, MemObject::method, Http::METHOD_HEAD, NULL, objectLen(), Http::scNoContent, and Http::scNotModified.

Referenced by complete().

◆ validToSend()

int StoreEntry::validToSend ( ) const

Definition at line 1331 of file store.cc.

References EBIT_TEST, ENTRY_ABORTED, ENTRY_NEGCACHED, expires, flags, hasDisk(), MemObject::inmem_lo, mem_obj, RELEASE_REQUEST, squid_curtime, and swappingOut().

Referenced by ICPState::confirmAndPrepHit().

◆ vappendf()

void StoreEntry::vappendf	(	const char *	fmt,
		va_list	ap
	)

virtual

Append operation, with vsprintf(3)-style arguments.

Note: arguments may be evaluated more than once, be careful of side-effects

XXX: This method either should not exist or should not be virtual. Kids should not be forced to re-implement vappendf() logic. That logic should be implemented once, using other [Packable] APIs. Packable is not about providing a printf(3) service. Packable is about writing opaque data to various custom destinations.

Implements Packable.

Definition at line 796 of file store.cc.

References append(), assert, fatal(), LOCAL_ARRAY, and xstrerr().

Referenced by storeAppendPrintf(), and storeAppendVPrintf().

◆ write()

void StoreEntry::write ( StoreIOBuffer writeBuffer )

Definition at line 755 of file store.cc.

References assert, MemObject::baseReply(), debugs, EBIT_CLR, EBIT_TEST, ENTRY_FWD_HDR_WAIT, flags, getMD5Text(), Http::Message::hdr_sz, invokeHandlers(), StoreIOBuffer::length, mem_obj, NULL, StoreIOBuffer::offset, MemObject::readAheadPolicyCanRead(), STORE_PENDING, store_status, storeGetMemSpace(), and MemObject::write().

Referenced by append(), Client::handleMoreAdaptedBodyAvailable(), ClientHttpRequest::noteMoreBodyDataAvailable(), storeDirWriteCleanLogs(), and Client::storeReplyBody().

Friends And Related Function Documentation

◆ operator<<

std::ostream& operator<<	(	std::ostream &	os,
		const StoreEntry &	e
	)

friend

Definition at line 2003 of file store.cc.

Member Data Documentation

◆ cachedESITree

ESIElement::Pointer StoreEntry::cachedESITree

Definition at line 253 of file Store.h.

Referenced by ESIContext::getCachedAST(), ESIContext::hasCachedAST(), and ESIContext::updateCachedAST().

◆ deferredProducer

AsyncCall::Pointer StoreEntry::deferredProducer

private

Definition at line 333 of file Store.h.

Referenced by kickProducer(), and operator<<().

◆ expires

◆ flags

uint16_t StoreEntry::flags

Definition at line 230 of file Store.h.

◆ key

void* hash_link::key

inherited

Definition at line 19 of file hash.h.

Referenced by ClientInfo::ClientInfo(), fqdncache_entry::fqdncache_entry(), IdleConnList::IdleConnList(), ipcache_entry::ipcache_entry(), net_db_name::net_db_name(), ClientInfo::~ClientInfo(), ExternalACLEntry::~ExternalACLEntry(), fqdncache_entry::~fqdncache_entry(), IdleConnList::~IdleConnList(), net_db_name::~net_db_name(), aclMatchExternal(), MemStore::anchorToCache(), Rock::SwapDir::anchorToCache(), StoreMetaMD5::checkConsistency(), clearPublicKeyScope(), Rock::SwapDir::createStoreIO(), CommQuotaQueue::dequeue(), destroyStoreEntry(), CommQuotaQueue::enqueue(), external_acl_cache_add(), forcePublicKey(), fqdncacheAddEntry(), fqdncacheParse(), getMD5Text(), hash_join(), hash_remove_link(), hashDelete(), hashInsert(), hashKeyStr(), Rock::SwapDir::hasReadableEntry(), htcpQuery(), idnsStartQuery(), ipcacheAddEntry(), ipcacheRelease(), Fs::Ufs::UFSSwapDir::logEntry(), Store::Controller::markedForDeletionAndAbandoned(), my_free(), ipcache_entry::name(), neighborsUdpPing(), netdbHashInsert(), Ipc::StoreMap::openForUpdating(), Rock::SwapDir::openStoreIO(), peerCountMcastPeersCreateAndSend(), publicKey(), read_passwd_file(), Ipc::StoreMapAnchor::set(), setPrivateKey(), setPublicKey(), ClientInfo::setWriteLimiter(), Ident::Start(), MemStore::startCaching(), storeDigestAdd(), storeDigestDel(), storeKeyHashHash(), storeKeyText(), storeRebuildParseEntry(), storeSwapMetaBuild(), and UFSCleanLog::write().

◆ lastModified_

time_t StoreEntry::lastModified_

private

Definition at line 226 of file Store.h.

Referenced by describeTimestamps(), dump(), lastModified(), reset(), and timestampsSet().

◆ lastref

time_t StoreEntry::lastref

Definition at line 223 of file Store.h.

Referenced by Fs::Ufs::UFSSwapDir::addDiskRestore(), addedEntry(), describeTimestamps(), dump(), Ipc::StoreMapAnchor::exportInto(), HeapKeyGen_StoreEntry_GDSF(), HeapKeyGen_StoreEntry_LFUDA(), HeapKeyGen_StoreEntry_LRU(), Fs::Ufs::UFSSwapDir::logEntry(), lru_stats(), InitStoreEntry::operator()(), Fs::Ufs::RebuildState::rebuildFromDirectory(), Ipc::StoreMapAnchor::set(), storeCreatePureEntry(), touch(), and UFSCleanLog::write().

◆ lock_count

unsigned short StoreEntry::lock_count

private

Definition at line 322 of file Store.h.

Referenced by dump(), lock(), locked(), locks(), and unlock().

◆ mem_obj

MemObject* StoreEntry::mem_obj

Definition at line 219 of file Store.h.

Referenced by abort(), Store::Disks::accumulateMore(), Transients::addEntry(), Transients::addWriterEntry(), adjustVary(), Transients::anchorEntry(), MemStore::anchorEntry(), append(), CollapsedForwarding::Broadcast(), bytesWanted(), clientReplyContext::cacheHit(), calcPublicKey(), checkCachable(), StoreMetaURL::checkConsistency(), StoreMetaVary::checkConsistency(), CheckQuickAbortIsReasonable(), checkTooBig(), checkTooSmall(), Transients::clearCollapsingRequirement(), FwdState::complete(), complete(), FwdState::completed(), Transients::completeWriting(), MemStore::completeWriting(), store_client::copy(), MemStore::copyFromShm(), MemStore::copyFromShmSlice(), MemStore::copyToShm(), MemStore::copyToShmSlice(), createMemObject(), Store::Controller::dereferenceIdle(), destroyMemObject(), Transients::disconnect(), Rock::SwapDir::disconnect(), MemStore::disconnect(), store_client::doCopy(), doPages(), dump(), ensureMemObject(), errorAppendEntry(), FwdState::establishTunnelThruProxy(), MemStore::evictCached(), Transients::evictCached(), store_client::fileRead(), findPreviouslyCachedEntry(), forcePublicKey(), gopherReadReply(), Store::Controller::handleIdleEntry(), hasFreshestReply(), hasMemStore(), hasTransients(), Transients::hasWriter(), HttpStateData::haveParsedReplyHeaders(), HeapKeyGen_StoreEntry_GDSF(), HeapKeyGen_StoreEntry_LFUDA(), HeapKeyGen_StoreEntry_LRU(), httpMaybeRemovePublic(), invokeHandlers(), Transients::isReader(), Transients::isWriter(), Store::Controller::keepForLocalMemoryCache(), MimeIcon::load(), mayStartSwapOut(), mem(), memoryCachable(), Transients::monitorIo(), store_client::moreToSend(), neighborsHtcpReply(), neighborsUdpAck(), neighborsUdpPing(), objectSizeForDirSelection(), operator<<(), peerCountHandleIcpReply(), peerCountMcastPeersAbort(), peerCountMcastPeersCreateAndSend(), peerDigestFetchReply(), peerDigestFetchSetStats(), peerDigestSwapInCBlock(), store_client::readBody(), Transients::readers(), store_client::readHeader(), HttpStateData::readReply(), Store::Controller::referenceBusy(), FwdState::reforward(), refreshCheck(), refreshCheckDigest(), refreshIsCachable(), registerAbortCallback(), replaceHttpReply(), store_client::scheduleMemRead(), store_client::scheduleRead(), setMemStatus(), setNoDelay(), HeapPolicyData::setPolicyNode(), setPrivateKey(), setPublicKey(), MemStore::shouldCache(), FwdState::Start(), MemStore::startCaching(), startWriting(), statObjectsOpenfdFilter(), statObjectsVmFilter(), statStoreEntry(), Transients::status(), storeClientCopyPending(), storeClientListAdd(), storeClientType(), storeDigestRewriteFinish(), storeDigestRewriteStart(), storeLog(), clientReplyContext::storeNotOKTransferDone(), storePendingNClients(), storeSwapInStart(), storeSwapMetaBuild(), storeSwapOutFileClosed(), storeSwapOutStart(), storeUnregister(), swapOut(), swapOutDecision(), swapOutFileClose(), Store::Controller::syncCollapsed(), testRock::testRockSwapOut(), timestampsSet(), transientsAbandonmentCheck(), trimMemory(), store_client::unpackHeader(), unregisterAbortCallback(), MemStore::updateAnchored(), MemStore::updateHeaders(), updateOnNotModified(), Store::Controller::updateOnNotModified(), url(), validLength(), validToSend(), varyEvaluateMatch(), MemStore::write(), write(), and HttpStateData::wroteLast().

◆ mem_status

mem_status_t StoreEntry::mem_status

Definition at line 238 of file Store.h.

Referenced by clientReplyContext::cacheHit(), complete(), Store::Controller::dereferenceIdle(), describeStatuses(), dump(), operator<<(), Store::Controller::referenceBusy(), setMemStatus(), MemStore::shouldCache(), storeSwapInStart(), trimMemory(), and Store::Controller::updateOnNotModified().

◆ next

hash_link* hash_link::next

inherited

Definition at line 20 of file hash.h.

Referenced by IdleConnList::IdleConnList(), clientdbGC(), Store::LocalSearch::copyBucket(), dump(), hash_join(), hash_next(), hash_remove_link(), and lru_stats().

◆ ping_status

◆ pool

MemAllocator * StoreEntry::pool = NULL

staticprivate

Definition at line 320 of file Store.h.

Referenced by inUseCount().

◆ refcount

uint16_t StoreEntry::refcount

Definition at line 229 of file Store.h.

Referenced by store_client::store_client(), Fs::Ufs::UFSSwapDir::addDiskRestore(), addedEntry(), dump(), Ipc::StoreMapAnchor::exportInto(), HeapKeyGen_StoreEntry_GDSF(), HeapKeyGen_StoreEntry_LFUDA(), Fs::Ufs::UFSSwapDir::logEntry(), memoryCachable(), InitStoreEntry::operator()(), Fs::Ufs::RebuildState::rebuildFromDirectory(), Ipc::StoreMapAnchor::set(), statStoreEntry(), storeCreatePureEntry(), and UFSCleanLog::write().

◆ repl

RemovalPolicyNode StoreEntry::repl

Definition at line 220 of file Store.h.

Referenced by Fs::Ufs::UFSSwapDir::dereference(), Rock::SwapDir::dereference(), Rock::SwapDir::ignoreReferences(), Fs::Ufs::UFSSwapDir::reference(), Rock::SwapDir::reference(), Fs::Ufs::UFSSwapDir::replacementAdd(), Fs::Ufs::UFSSwapDir::replacementRemove(), HeapPolicyData::setPolicyNode(), and Rock::SwapDir::trackReferences().

◆ shareableWhenPrivate

bool StoreEntry::shareableWhenPrivate

private

Nobody can find/lock KEY_PRIVATE entries, but some transactions (e.g., collapsed requests) find/lock a public entry before it becomes private. May such transactions start using the now-private entry they previously locked? This member should not affect transactions that already started reading from the entry.

Definition at line 329 of file Store.h.

Referenced by clearPrivate(), mayStartHitting(), operator<<(), releaseRequest(), and setPrivateKey().

◆ store_status

store_status_t StoreEntry::store_status

Definition at line 242 of file Store.h.

Referenced by abort(), Fs::Ufs::UFSSwapDir::addDiskRestore(), addedEntry(), Rock::SwapDir::anchorEntry(), MemStore::anchorEntry(), append(), asHandleReply(), clientReplyContext::cacheHit(), checkCachable(), checkNegativeHit(), CheckQuickAbortIsReasonable(), FwdState::checkRetry(), checkTooSmall(), clientReplyContext::checkTransferDone(), complete(), FwdState::completed(), MemStore::copyFromShm(), describeStatuses(), doAbandon(), store_client::doCopy(), doPages(), dump(), errorAppendEntry(), HttpStateData::httpTimeout(), isAccepting(), mayStartSwapOut(), store_client::moreToSend(), netdbExchangeHandleReply(), operator<<(), peerDigestPDFinish(), FwdState::reforward(), storeClientType(), storeCreatePureEntry(), storeDigestAddable(), storeUnregister(), swapOut(), testStoreController::testMaxSize(), testStoreHashIndex::testMaxSize(), testStoreController::testStats(), testStoreHashIndex::testStats(), urnHandleReply(), MemStore::write(), and write().

◆ swap_dirn

sdirno StoreEntry::swap_dirn

◆ swap_file_sz

◆ swap_filen

sfileno StoreEntry::swap_filen

Definition at line 234 of file Store.h.

Referenced by Fs::Ufs::UFSStoreState::UFSStoreState(), Fs::Ufs::UFSSwapDir::addDiskRestore(), addedEntry(), attachToDisk(), checkDisk(), Fs::Ufs::UFSSwapDir::dereference(), Rock::SwapDir::dereference(), detachFromDisk(), Rock::SwapDir::disconnect(), Fs::Ufs::UFSSwapDir::doubleCheck(), dump(), Fs::Ufs::UFSSwapDir::dumpEntry(), Rock::SwapDir::evictCached(), Fs::Ufs::UFSSwapDir::evictCached(), hasDisk(), Fs::Ufs::UFSSwapDir::logEntry(), Fs::Ufs::UFSStrategy::open(), Rock::SwapDir::openStoreIO(), operator<<(), Fs::Ufs::UFSSwapDir::reference(), Rock::SwapDir::reference(), statStoreEntry(), storeDirSwapLog(), storeLog(), storeSwapInFileNotify(), storeSwapOutFileClosed(), storeSwapOutStart(), testRock::testRockSwapOut(), testUfs::testUfsSearch(), StoreIOState::touchingStoreEntry(), Rock::SwapDir::updateAnchored(), Rock::SwapDir::updateHeaders(), and UFSCleanLog::write().

◆ swap_status

swap_status_t StoreEntry::swap_status

Definition at line 244 of file Store.h.

Referenced by addedEntry(), attachToDisk(), checkDisk(), describeStatuses(), detachFromDisk(), dump(), operator<<(), storeClientType(), storeSwapOutFileClosed(), storeSwapOutStart(), swapoutFailed(), swappedOut(), swappingOut(), and testRock::testRockSwapOut().

◆ timestamp

time_t StoreEntry::timestamp

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

squid-cache.org

Optimising Web Delivery

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ EntryGuard

Constructor & Destructor Documentation

◆ StoreEntry()

◆ ~StoreEntry()

Member Function Documentation

◆ abandon()

◆ abort()

◆ adjustVary()

◆ append()

◆ appendf()

◆ attachToDisk()

◆ buffer()

◆ bytesWanted()

◆ cacheInMemory()

◆ cacheNegatively()

◆ calcPublicKey()

◆ checkCachable()

◆ checkDeferRead()

◆ checkDisk()

◆ checkNegativeHit()

◆ checkTooBig()

◆ checkTooSmall()

◆ clearPrivate()

◆ clearPublicKeyScope()

◆ complete()

◆ completeSuccessfully()

◆ completeTruncated()

◆ contentLen()

◆ createMemObject() [1/2]

◆ createMemObject() [2/2]

◆ deferProducer()

◆ describeTimestamps()

◆ destroyMemObject()

◆ detachFromDisk()

◆ disk()

◆ doAbandon()

◆ dump()

◆ ensureMemObject()

◆ expireNow()

◆ flush()

◆ forcePublicKey()

◆ getMD5Text()

◆ getSerialisedMetaData()

◆ hasDisk()

◆ hasEtag()

◆ hasFreshestReply()

◆ hashDelete()

◆ hashInsert()

◆ hasIfMatchEtag()

◆ hasIfNoneMatchEtag()

◆ hasMemStore()

◆ hasOneOfEtags()

◆ hasTransients()

◆ hittingRequiresCollapsing()

◆ inUseCount()

◆ invokeHandlers()

◆ isAccepting()

◆ isEmpty()

◆ kickProducer()

◆ lastModified() [1/2]

◆ lastModified() [2/2]

◆ lengthWentBad()

◆ lock()

◆ locked()

◆ locks()

◆ makePrivate()

◆ makePublic()