allows testing of methods without having all the other components live More...

#include <testStore.h>

Inheritance diagram for TestStore:

[legend]

Collaboration diagram for TestStore:

[legend]

Public Member Functions
	TestStore ()

virtual int	callback ()
	called once every main loop iteration; TODO: Move to UFS code. More...

virtual StoreEntry *	get (const cache_key *)

virtual void	get (String, void()(StoreEntry , void ), void )

virtual void	init ()

virtual void	maintain ()
	perform regular periodic maintenance; TODO: move to UFSSwapDir::Maintain More...

virtual uint64_t	maxSize () const

virtual uint64_t	minSize () const
	the minimum size the store will shrink to via normal housekeeping More...

virtual uint64_t	currentSize () const
	current size More...

virtual uint64_t	currentCount () const
	the total number of objects stored right now More...

virtual int64_t	maxObjectSize () const
	the maximum size of a storable object; -1 if unlimited More...

virtual void	getStats (StoreInfoStats &) const
	collect statistics More...

virtual void	stat (StoreEntry &) const

virtual void	reference (StoreEntry &)

virtual bool	dereference (StoreEntry &)

virtual StoreSearch *	search ()

virtual void	create () override
	create system resources needed for this store to operate in the future More...

virtual void	sync () override
	prepare for shutdown More...

virtual void	evictCached (StoreEntry &) override

virtual void	evictIfFound (const cache_key *) override

StoreEntry *	find (const cache_key *)

StoreEntry *	peek (const cache_key *)

StoreEntry *	findCallbackXXX (const cache_key *)

bool	markedForDeletion (const cache_key *key) const

bool	markedForDeletionAndAbandoned (const StoreEntry &) const

bool	hasReadableDiskEntry (const StoreEntry &) const
	whether there is a disk entry with e.key More...

int64_t	accumulateMore (StoreEntry &) const

void	configure ()
	update configuration, including limits (re)calculation More...

void	handleIdleEntry (StoreEntry &)
	called when the entry is no longer needed by any transaction More...

void	freeMemorySpace (const int spaceRequired)

void	memoryOut (StoreEntry &, const bool preserveSwappable)
	called to get rid of no longer needed entry data in RAM, if any More...

void	updateOnNotModified (StoreEntry *old, StoreEntry &e304)
	using a 304 response, update the old entry (metadata and reply headers) More...

bool	allowCollapsing (StoreEntry *, const RequestFlags &, const HttpRequestMethod &)
	tries to make the entry available for collapsing future requests More...

void	addReading (StoreEntry , const cache_key )

void	addWriting (StoreEntry , const cache_key )

bool	transientsReader (const StoreEntry &) const
	whether the entry is in "reading from Transients" I/O state More...

bool	transientsWriter (const StoreEntry &) const
	whether the entry is in "writing to Transients" I/O state More...

void	syncCollapsed (const sfileno)
	Update local intransit entry after changes made by appending worker. More...

void	noteStoppedSharedWriting (StoreEntry &)
	adjust shared state after this worker stopped changing the entry More...

int	transientReaders (const StoreEntry &) const
	number of the transient entry readers some time ago More...

void	transientsDisconnect (StoreEntry &)
	disassociates the entry from the intransit table More...

void	memoryDisconnect (StoreEntry &)
	disassociates the entry from the memory cache, preserving cached data More...

Static Public Member Functions
static bool	SmpAware ()
	whether there are any SMP-aware storages More...

Public Attributes
bool	statsCalled

Static Public Attributes
static int	store_dirs_rebuilding = 1
	the number of cache_dirs being rebuilt; TODO: move to Disks::Rebuilding More...

Private Member Functions
bool	memoryCacheHasSpaceFor (const int pagesRequired) const
	whether the memory cache is allowed to store that many additional pages More...

void	referenceBusy (StoreEntry &e)
	update reference counters of the recently touched entry More...

bool	dereferenceIdle (StoreEntry &, bool wantsLocalMemory)

void	allowSharing (StoreEntry &, const cache_key *)
	indexes and adds SMP-tracking for an ephemeral peek() result More...

StoreEntry *	peekAtLocal (const cache_key *)

void	memoryEvictCached (StoreEntry &)

void	transientsUnlinkByKeyIfFound (const cache_key *)

bool	keepForLocalMemoryCache (StoreEntry &e) const
	whether e should be kept in local RAM for possible future caching More...

bool	anchorToCache (StoreEntry &e, bool &inSync)

void	checkTransients (const StoreEntry &) const

void	checkFoundCandidate (const StoreEntry &) const
	flags problematic entries before find() commits to finalizing/returning them More...

Private Attributes
Disks *	swapDir
	summary view of all disk caches More...

Memory *	sharedMemStore
	memory cache that multiple workers can use More...

bool	localMemStore
	whether local (non-shared) memory cache is enabled More...

Transients *	transients

int	memoryPagesDebt_ = 0
	Hack: Relays page shortage from freeMemorySpace() to handleIdleEntry(). More...

Detailed Description

Definition at line 42 of file testStore.h.

Constructor & Destructor Documentation

◆ TestStore()

TestStore::TestStore ( )

inline

Definition at line 46 of file testStore.h.

Member Function Documentation

◆ accumulateMore()

int64_t Store::Controller::accumulateMore ( StoreEntry & entry ) const

inherited

Additional unknown-size entry bytes required by Store in order to reduce the risk of selecting the wrong disk cache for the growing entry.

Definition at line 485 of file Controller.cc.

Referenced by StoreEntry::mayStartSwapOut().

◆ addReading()

void Store::Controller::addReading	(	StoreEntry *	e,
		const cache_key *	key
	)

inherited

register a being-read StoreEntry (to optimize concurrent cache reads and to receive remote DELETE events)

Definition at line 751 of file Controller.cc.

References StoreEntry::hashInsert(), and Store::ioReading.

◆ addWriting()

void Store::Controller::addWriting	(	StoreEntry *	e,
		const cache_key *	key
	)

inherited

register a being-written StoreEntry (to support concurrent cache reads and to receive remote DELETE events)

Definition at line 759 of file Controller.cc.

References assert, EBIT_TEST, ENTRY_SPECIAL, StoreEntry::flags, and Store::ioWriting.

Referenced by StoreEntry::setPublicKey().

◆ allowCollapsing()

bool Store::Controller::allowCollapsing	(	StoreEntry *	e,
		const RequestFlags &	reqFlags,
		const HttpRequestMethod &
	)

inherited

Definition at line 733 of file Controller.cc.

References assert, debugs, StoreEntry::hasTransients(), StoreEntry::hittingRequiresCollapsing(), ksDefault, ksRevalidation, StoreEntry::makePublic(), RequestFlags::refresh, and StoreEntry::setCollapsingRequirement().

Referenced by clientReplyContext::createStoreEntry().

◆ allowSharing()

void Store::Controller::allowSharing	(	StoreEntry &	entry,
		const cache_key *	key
	)

privateinherited

Definition at line 370 of file Controller.cc.

References DBG_IMPORTANT, debugs, StoreEntry::hasTransients(), Here, StoreEntry::hittingRequiresCollapsing(), and TexcHere.

◆ anchorToCache()

bool Store::Controller::anchorToCache	(	StoreEntry &	entry,
		bool &	inSync
	)

privateinherited

Called for Transients entries that are not yet anchored to a cache.

Returns: false for not-yet-cached entries that we may attach later; true for other entries after synchronizing them with their store and setting inSync to reflect that synchronization outcome.

Definition at line 863 of file Controller.cc.

References assert, debugs, StoreEntry::hasTransients(), Transients::EntryStatus::hasWriter, StoreEntry::setCollapsingRequirement(), and Transients::EntryStatus::waitingToBeFreed.

◆ callback()

int TestStore::callback ( )

virtual

Reimplemented from Store::Controller.

Definition at line 20 of file testStore.cc.

◆ checkFoundCandidate()

void Store::Controller::checkFoundCandidate ( const StoreEntry & entry ) const

privateinherited

Definition at line 328 of file Controller.cc.

References StoreEntry::hasTransients(), Here, StoreEntry::hittingRequiresCollapsing(), StoreEntry::isAccepting(), and StoreEntry::locked().

◆ checkTransients()

void Store::Controller::checkTransients ( const StoreEntry & e ) const

privateinherited

Definition at line 914 of file Controller.cc.

References assert, EBIT_TEST, ENTRY_SPECIAL, StoreEntry::flags, and StoreEntry::hasTransients().

◆ configure()

void Store::Controller::configure ( )

inherited

Definition at line 194 of file Controller.cc.

References Config, SquidConfig::highWaterMark, SquidConfig::lowWaterMark, max(), SquidConfig::maxInMemObjSize, SquidConfig::memMaxSize, min(), SquidConfig::Store, store_maxobjsize, store_pages_max, store_swap_high, store_swap_low, and SquidConfig::Swap.

Referenced by storeConfigure().

◆ create()

void Store::Controller::create ( )

overridevirtualinherited

Implements Store::Storage.

Definition at line 78 of file Controller.cc.

References pid, and WaitForAnyPid().

Referenced by SquidMain().

◆ currentCount()

uint64_t TestStore::currentCount ( ) const

virtual

Reimplemented from Store::Controller.

Definition at line 58 of file testStore.cc.

◆ currentSize()

uint64_t TestStore::currentSize ( ) const

virtual

Reimplemented from Store::Controller.

Definition at line 52 of file testStore.cc.

◆ dereference()

virtual bool TestStore::dereference ( StoreEntry & )

inlinevirtual

Definition at line 76 of file testStore.h.

◆ dereferenceIdle()

bool Store::Controller::dereferenceIdle	(	StoreEntry &	e,
		bool	wantsLocalMemory
	)

privateinherited

dereference()s an idle entry

Returns: false if and only if the entry should be deleted

Definition at line 262 of file Controller.cc.

References RemovalPolicy::Dereferenced, EBIT_TEST, ENTRY_SPECIAL, StoreEntry::flags, StoreEntry::hasDisk(), StoreEntry::hittingRequiresCollapsing(), IN_MEMORY, KEY_PRIVATE, StoreEntry::mem_obj, mem_policy, StoreEntry::mem_status, and MemObject::repl.

◆ evictCached()

void Store::Controller::evictCached ( StoreEntry & e )

overridevirtualinherited

Prevent new get() calls from returning the matching entry. If the matching entry is unused, it may be removed from the store now. The store entry is matched using either e attachment info or e.key.

Implements Store::Storage.

Definition at line 495 of file Controller.cc.

References debugs.

Referenced by StoreEntry::release(), and StoreEntry::setPrivateKey().

◆ evictIfFound()

void Store::Controller::evictIfFound ( const cache_key * )

overridevirtualinherited

An evictCached() equivalent for callers that did not get() a StoreEntry. Callers with StoreEntry objects must use evictCached() instead.

Implements Store::Storage.

Definition at line 506 of file Controller.cc.

References debugs, and storeKeyText().

Referenced by purgeEntriesByUrl().

◆ find()

StoreEntry * Store::Controller::find ( const cache_key * key )

inherited

Returns: a locally indexed and SMP-tracked matching StoreEntry (or nil) Slower than peek() but does not restrict StoreEntry use and storage. Counts as an entry reference from the removal policy p.o.v.

Definition at line 349 of file Controller.cc.

References debugs.

Referenced by storeGetPublic(), and storeGetPublicByRequestMethod().

◆ findCallbackXXX()

StoreEntry * Store::Controller::findCallbackXXX ( const cache_key * key )

inherited

Returns: matching StoreEntry associated with local ICP/HTCP transaction Warning: The returned StoreEntry is not synced and may be marked for deletion. It can only be used for extracting transaction callback details. New code should be designed to avoid this deprecated API.

Definition at line 400 of file Controller.cc.

References hash_lookup(), and store_table.

Referenced by neighborsHtcpReply().

◆ freeMemorySpace()

void Store::Controller::freeMemorySpace ( const int spaceRequired )

inherited

Evict memory cache entries to free at least spaceRequired bytes. Should be called via storeGetMemSpace(). Unreliable: Fails if enough victims cannot be found fast enough.

Definition at line 535 of file Controller.cc.

References debugs, hot_obj_count, mem_policy, RemovalPolicy::PurgeInit, SM_PAGE_SIZE, and squid_curtime.

Referenced by storeGetMemSpace().

◆ get() [1/2]

StoreEntry * TestStore::get ( const cache_key * )

virtual

Definition at line 26 of file testStore.cc.

◆ get() [2/2]

void TestStore::get	(	String	,
		void()(StoreEntry , void *)	,
		void *
	)

virtual

Definition at line 32 of file testStore.cc.

◆ getStats()

void TestStore::getStats ( StoreInfoStats & stats ) const

virtual

Reimplemented from Store::Controller.

Definition at line 70 of file testStore.cc.

◆ handleIdleEntry()

void Store::Controller::handleIdleEntry ( StoreEntry & e )

inherited

Definition at line 651 of file Controller.cc.

References assert, debugs, destroyStoreEntry, EBIT_TEST, ENTRY_SPECIAL, StoreEntry::flags, IN_MEMORY, KEY_PRIVATE, StoreEntry::mem_obj, StoreEntry::release(), StoreEntry::setMemStatus(), StoreEntry::swappedOut(), and MemObject::unlinkRequest().

Referenced by StoreEntry::doAbandon().

◆ hasReadableDiskEntry()

bool Store::Controller::hasReadableDiskEntry ( const StoreEntry & e ) const

inherited

Definition at line 321 of file Controller.cc.

◆ init()

void TestStore::init ( )

virtual

Start preparing the store for use. To check readiness, callers should use readable() and writable() methods.

Reimplemented from Store::Controller.

Definition at line 36 of file testStore.cc.

◆ keepForLocalMemoryCache()

bool Store::Controller::keepForLocalMemoryCache ( StoreEntry & e ) const

privateinherited

Definition at line 577 of file Controller.cc.

References assert, Config, MemObject::endOffset(), MemObject::expectedReplySize(), max(), SquidConfig::maxInMemObjSize, StoreEntry::mem_obj, SquidConfig::memMaxSize, StoreEntry::memoryCachable(), min(), and SquidConfig::Store.

◆ maintain()

virtual void TestStore::maintain ( )

inlinevirtual

Reimplemented from Store::Controller.

Definition at line 58 of file testStore.h.

◆ markedForDeletion()

bool Store::Controller::markedForDeletion ( const cache_key * key ) const

inherited

Whether a transient entry with the given public key exists and (but) was marked for removal some time ago; get(key) returns nil in such cases.

Definition at line 305 of file Controller.cc.

Referenced by Ipc::StoreMapAnchor::setKey().

◆ markedForDeletionAndAbandoned()

bool Store::Controller::markedForDeletionAndAbandoned ( const StoreEntry & e ) const

inherited

markedForDeletion() with no readers this is one method because the two conditions must be checked in the right order

Definition at line 312 of file Controller.cc.

References hash_link::key.

◆ maxObjectSize()

int64_t TestStore::maxObjectSize ( ) const

virtual

Reimplemented from Store::Controller.

Definition at line 64 of file testStore.cc.

◆ maxSize()

uint64_t TestStore::maxSize ( ) const

virtual

The maximum size the store will support in normal use. Inaccuracy is permitted, but may throw estimates for memory etc out of whack.

Reimplemented from Store::Controller.

Definition at line 40 of file testStore.cc.

◆ memoryCacheHasSpaceFor()

bool Store::Controller::memoryCacheHasSpaceFor ( const int pagesRequired ) const

privateinherited

Definition at line 526 of file Controller.cc.

References debugs, mem_node::InUseCount(), and store_pages_max.

◆ memoryDisconnect()

void Store::Controller::memoryDisconnect ( StoreEntry & e )

inherited

Definition at line 622 of file Controller.cc.

Referenced by StoreEntry::destroyMemObject().

◆ memoryEvictCached()

void Store::Controller::memoryEvictCached ( StoreEntry & e )

privateinherited

removes the entry from the memory cache XXX: Dangerous side effect: Unlocked entries lose their mem_obj.

Definition at line 611 of file Controller.cc.

References StoreEntry::destroyMemObject(), and StoreEntry::locked().

◆ memoryOut()

void Store::Controller::memoryOut	(	StoreEntry &	e,
		const bool	preserveSwappable
	)

inherited

Definition at line 594 of file Controller.cc.

References debugs, and StoreEntry::trimMemory().

Referenced by StoreEntry::swapOut().

◆ minSize()

uint64_t TestStore::minSize ( ) const

virtual

Reimplemented from Store::Controller.

Definition at line 46 of file testStore.cc.

◆ noteStoppedSharedWriting()

void Store::Controller::noteStoppedSharedWriting ( StoreEntry & e )

inherited

Definition at line 630 of file Controller.cc.

References StoreEntry::hasTransients().

Referenced by StoreEntry::storeWritingCheckpoint().

◆ peek()

StoreEntry * Store::Controller::peek ( const cache_key * key )

inherited

Returns: a matching StoreEntry not suitable for long-term use (or nil) Faster than find() but the returned entry may not receive updates, may lack information from some of the Stores, and should not be updated except that purging peek()ed entries is supported. Does not count as an entry reference from the removal policy p.o.v.

Definition at line 432 of file Controller.cc.

References debugs, and storeKeyText().

◆ peekAtLocal()

StoreEntry * Store::Controller::peekAtLocal ( const cache_key * key )

privateinherited

Returns: either an existing local reusable StoreEntry object or nil To treat remotely marked entries specially, callers ought to check markedForDeletion() first!

Definition at line 416 of file Controller.cc.

References assert, EBIT_TEST, hash_lookup(), KEY_PRIVATE, and store_table.

◆ reference()

virtual void TestStore::reference ( StoreEntry & )

inlinevirtual

Definition at line 74 of file testStore.h.

◆ referenceBusy()

void Store::Controller::referenceBusy ( StoreEntry & e )

privateinherited

Definition at line 237 of file Controller.cc.

References EBIT_TEST, ENTRY_SPECIAL, StoreEntry::flags, StoreEntry::hasDisk(), IN_MEMORY, StoreEntry::mem_obj, mem_policy, StoreEntry::mem_status, RemovalPolicy::Referenced, and MemObject::repl.

◆ search()

StoreSearch * TestStore::search ( )

virtual

Definition at line 81 of file testStore.cc.

◆ SmpAware()

bool Store::Controller::SmpAware ( )

staticinherited

Definition at line 908 of file Controller.cc.

References MemStore::Enabled(), and Store::Disks::SmpAware().

Referenced by Transients::EntryLimit(), and clientReplyContext::processExpired().

◆ stat()

void TestStore::stat ( StoreEntry & e ) const

virtual

Output stats to the provided store entry. TODO: make these calls asynchronous

Reimplemented from Store::Controller.

Definition at line 75 of file testStore.cc.

References statsCalled.

◆ sync()

void Store::Controller::sync ( void )

overridevirtualinherited

Reimplemented from Store::Storage.

Definition at line 218 of file Controller.cc.

Referenced by SquidShutdown().

◆ syncCollapsed()

void Store::Controller::syncCollapsed ( const sfileno xitIndex )

inherited

◆ transientReaders()

int Store::Controller::transientReaders ( const StoreEntry & e ) const

inherited

Definition at line 637 of file Controller.cc.

References StoreEntry::hasTransients().

Referenced by CollapsedForwarding::Broadcast().

◆ transientsDisconnect()

void Store::Controller::transientsDisconnect ( StoreEntry & e )

inherited

Definition at line 644 of file Controller.cc.

Referenced by StoreEntry::destroyMemObject().

◆ transientsReader()

bool Store::Controller::transientsReader ( const StoreEntry & e ) const

inherited

Definition at line 473 of file Controller.cc.

References StoreEntry::hasTransients().

◆ transientsUnlinkByKeyIfFound()

void Store::Controller::transientsUnlinkByKeyIfFound ( const cache_key * )

privateinherited

◆ transientsWriter()

bool Store::Controller::transientsWriter ( const StoreEntry & e ) const

inherited

Definition at line 479 of file Controller.cc.

References StoreEntry::hasTransients().

◆ updateOnNotModified()

void Store::Controller::updateOnNotModified	(	StoreEntry *	old,
		StoreEntry &	e304
	)

inherited

Definition at line 700 of file Controller.cc.

References MemObject::appliedUpdates, debugs, EBIT_TEST, ENTRY_SPECIAL, StoreEntry::flags, IN_MEMORY, StoreEntry::mem_obj, StoreEntry::mem_status, Must, StoreEntry::swap_dirn, and StoreEntry::updateOnNotModified().

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

Member Data Documentation

◆ localMemStore

bool Store::Controller::localMemStore

privateinherited

Definition at line 153 of file Controller.h.

◆ memoryPagesDebt_

int Store::Controller::memoryPagesDebt_ = 0

privateinherited

Definition at line 161 of file Controller.h.

◆ sharedMemStore

Memory* Store::Controller::sharedMemStore

privateinherited

Definition at line 152 of file Controller.h.

◆ statsCalled

bool TestStore::statsCalled

Definition at line 48 of file testStore.h.

Referenced by stat(), and testStore::testStats().

◆ store_dirs_rebuilding

int Store::Controller::store_dirs_rebuilding = 1

staticinherited

Definition at line 133 of file Controller.h.

Referenced by Store::Disks::configure(), Fs::Ufs::UFSSwapDir::HandleCleanEvent(), icpGetCommonOpcode(), Store::Disks::init(), Fs::Ufs::UFSSwapDir::maintain(), StoreEntry::release(), storeCleanup(), storeDirWriteCleanLogs(), testRock::storeInit(), storeLateRelease(), storeRebuildComplete(), Rock::Rebuild::swanSong(), testUfs::testUfsSearch(), wccp2HereIam(), and Fs::Ufs::UFSSwapDir::writeCleanDone().

◆ swapDir

Disks* Store::Controller::swapDir

privateinherited

Definition at line 151 of file Controller.h.

◆ transients

Transients* Store::Controller::transients

privateinherited

A shared table of public store entries that do not know whether they will belong to a memory cache, a disk cache, or will be uncachable when the response header comes. Used for SMP collapsed forwarding.

Definition at line 158 of file Controller.h.

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

src/tests/testStore.h
src/tests/testStore.cc

squid-cache.org

Optimising Web Delivery

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ TestStore()

Member Function Documentation

◆ accumulateMore()

◆ addReading()

◆ addWriting()

◆ allowCollapsing()

◆ allowSharing()

◆ anchorToCache()

◆ callback()

◆ checkFoundCandidate()

◆ checkTransients()

◆ configure()

◆ create()

◆ currentCount()

◆ currentSize()

◆ dereference()

◆ dereferenceIdle()

◆ evictCached()

◆ evictIfFound()

◆ find()

◆ findCallbackXXX()

◆ freeMemorySpace()

◆ get() [1/2]

◆ get() [2/2]

◆ getStats()

◆ handleIdleEntry()

◆ hasReadableDiskEntry()

◆ init()

◆ keepForLocalMemoryCache()

◆ maintain()

◆ markedForDeletion()

◆ markedForDeletionAndAbandoned()

◆ maxObjectSize()

◆ maxSize()

◆ memoryCacheHasSpaceFor()

◆ memoryDisconnect()

◆ memoryEvictCached()

◆ memoryOut()

◆ minSize()

◆ noteStoppedSharedWriting()

◆ peek()

◆ peekAtLocal()

◆ reference()

◆ referenceBusy()

◆ search()

◆ SmpAware()

◆ stat()

◆ sync()

◆ syncCollapsed()

◆ transientReaders()

◆ transientsDisconnect()

◆ transientsReader()

◆ transientsUnlinkByKeyIfFound()

◆ transientsWriter()

◆ updateOnNotModified()

Member Data Documentation

◆ localMemStore

◆ memoryPagesDebt_

◆ sharedMemStore

◆ statsCalled

◆ store_dirs_rebuilding

◆ swapDir

◆ transients

Introduction

Documentation

Support

Miscellaneous

Web Site Translations

Mirrors