store.cc File Reference

#include "squid.h"
#include "base/TextException.h"
#include "CacheDigest.h"
#include "CacheManager.h"
#include "comm/Connection.h"
#include "comm/Read.h"
#include "ETag.h"
#include "event.h"
#include "fde.h"
#include "globals.h"
#include "http.h"
#include "HttpReply.h"
#include "HttpRequest.h"
#include "mem_node.h"
#include "MemObject.h"
#include "MemStore.h"
#include "mgr/Registration.h"
#include "mgr/StoreIoAction.h"
#include "profiler/Profiler.h"
#include "repl_modules.h"
#include "RequestFlags.h"
#include "SquidConfig.h"
#include "SquidTime.h"
#include "StatCounters.h"
#include "stmem.h"
#include "Store.h"
#include "store/Controller.h"
#include "store/Disk.h"
#include "store/Disks.h"
#include "store_digest.h"
#include "store_key_md5.h"
#include "store_log.h"
#include "store_rebuild.h"
#include "StoreClient.h"
#include "StoreIOState.h"
#include "StoreMeta.h"
#include "StrList.h"
#include "swap_log_op.h"
#include "tools.h"
#include "DelayPools.h"
#include "mem/Pool.h"
#include <climits>
#include <stack>
#include "comm.h"

Include dependency graph for store.cc:

Go to the source code of this file.

Classes
struct	_storerepl_entry
struct	_store_check_cachable_hist

Macros
#define	REBUILD_TIMESTAMP_DELTA_MAX   2
#define	STORE_IN_MEM_BUCKETS   (229)
#define	MAINTAIN_MAX_SCAN   1024
#define	MAINTAIN_MAX_REMOVE   64

Typedefs
typedef struct _storerepl_entry	storerepl_entry_t

Functions
static int	getKeyCounter (void)
void	destroyStoreEntry (void *data)
StoreEntry *	storeGetPublic (const char *uri, const HttpRequestMethod &method)
StoreEntry *	storeGetPublicByRequestMethod (HttpRequest *req, const HttpRequestMethod &method, const KeyScope keyScope)
StoreEntry *	storeGetPublicByRequest (HttpRequest *req, const KeyScope keyScope)
StoreEntry *	storeCreatePureEntry (const char *url, const char *log_url, const HttpRequestMethod &method)
StoreEntry *	storeCreateEntry (const char *url, const char *logUrl, const RequestFlags &flags, const HttpRequestMethod &method)
void	storeAppendPrintf (StoreEntry *e, const char *fmt,...)
void	storeAppendVPrintf (StoreEntry *e, const char *fmt, va_list vargs)
int	storeTooManyDiskFilesOpen (void)
void	storeCheckCachableStats (StoreEntry *sentry)
void	storeGetMemSpace (int size)
static void	storeLateRelease (void *)
static void	storeRegisterWithCacheManager (void)
void	storeInit (void)
void	storeConfigure (void)
void	storeFreeMemory (void)
int	expiresMoreThan (time_t expires, time_t when)
void	storeFsInit (void)
void	storeReplAdd (const char *type, REMOVALPOLICYCREATE *create)
RemovalPolicy *	createRemovalPolicy (RemovalPolicySettings *settings)
static std::ostream &	operator<< (std::ostream &os, const Store::IoStatus &io)
std::ostream &	operator<< (std::ostream &os, const StoreEntry &e)

Variables
const char *	memStatusStr []
const char *	pingStatusStr []
const char *	storeStatusStr []
const char *	swapStatusStr []
static storerepl_entry_t *	storerepl_list = NULL
static OBJH	storeCheckCachableStats
static EVH	storeLateRelease
static std::stack< StoreEntry * >	LateReleaseStack
struct _store_check_cachable_hist	store_check_cachable_hist

Macro Definition Documentation

MAINTAIN_MAX_REMOVE

#define MAINTAIN_MAX_REMOVE   64

Definition at line 1188 of file store.cc.

MAINTAIN_MAX_SCAN

#define MAINTAIN_MAX_SCAN   1024

Definition at line 1187 of file store.cc.

REBUILD_TIMESTAMP_DELTA_MAX

#define REBUILD_TIMESTAMP_DELTA_MAX   2

StoreEntry uses explicit new/delete operators, which set pool chunk size to 2MB XXX: convert to MEMPROXY_CLASS() API

Definition at line 62 of file store.cc.

STORE_IN_MEM_BUCKETS

#define STORE_IN_MEM_BUCKETS   (229)

Definition at line 64 of file store.cc.

Typedef Documentation

storerepl_entry_t

typedef struct _storerepl_entry storerepl_entry_t

Definition at line 95 of file store.cc.

Function Documentation

createRemovalPolicy()

RemovalPolicy* createRemovalPolicy

(

RemovalPolicySettings *

settings

)

Definition at line 1719 of file store.cc.

References RemovalPolicySettings::args, _storerepl_entry::create, DBG_IMPORTANT, debugs, fatalf(), NULL, storerepl_list, RemovalPolicySettings::type, and _storerepl_entry::typestr.

Referenced by testRock::commonInit(), Fs::Ufs::UFSSwapDir::parse(), storeInit(), testUfs::testUfsDefaultEngine(), and testUfs::testUfsSearch().

destroyStoreEntry()

void destroyStoreEntry

(

void *

data

)

Definition at line 396 of file store.cc.

References assert, data, debugs, StoreEntry::destroyMemObject(), Store::Disk::disconnect(), StoreEntry::disk(), StoreEntry::hasDisk(), StoreEntry::hashDelete(), HERE(), hash_link::key, NULL, and shutting_down.

Referenced by StoreEntry::release().

expiresMoreThan()

int expiresMoreThan	(	time_t	expires,
		time_t	when
	)

Definition at line 1391 of file store.cc.

References squid_curtime.

getKeyCounter()

static int getKeyCounter ( void  )

static

Definition at line 546 of file store.cc.

Referenced by StoreEntry::setPrivateKey().

operator<<() [1/2]

static std::ostream& operator<< ( std::ostream &  os, const Store::IoStatus &  io  )

static

Definition at line 2075 of file store.cc.

References Store::ioDone, Store::ioReading, Store::ioUndecided, and Store::ioWriting.

operator<<() [2/2]

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

Definition at line 2094 of file store.cc.

References DELAY_SENDING, EBIT_TEST, ENTRY_ABORTED, ENTRY_BAD_LENGTH, ENTRY_FWD_HDR_WAIT, ENTRY_NEGCACHED, ENTRY_REQUIRES_COLLAPSING, ENTRY_REVALIDATE_ALWAYS, ENTRY_REVALIDATE_STALE, ENTRY_SPECIAL, ENTRY_VALIDATED, StoreEntry::flags, StoreEntry::hasMemStore(), StoreEntry::hasTransients(), MemObject::XitTable::io, MemObject::MemCache::io, KEY_PRIVATE, StoreEntry::locks(), StoreEntry::mem_obj, StoreEntry::mem_status, MemObject::memCache, NOT_IN_MEMORY, PING_NONE, StoreEntry::ping_status, REFRESH_REQUEST, RELEASE_REQUEST, StoreEntry::shareableWhenPrivate, STORE_PENDING, StoreEntry::store_status, StoreEntry::swap_dirn, StoreEntry::swap_filen, StoreEntry::swap_status, SWAPOUT_NONE, and MemObject::xitTable.

storeAppendPrintf()

void storeAppendPrintf	(	StoreEntry *	e,
		const char *	fmt,
			...
	)

Definition at line 881 of file store.cc.

Referenced by DiskThreadsIOStrategy::aioStats(), asnStats(), cacheDigestGuessStatsReport(), cacheDigestReport(), carpCachemgr(), cbdataDump(), clientdbDump(), commIncomingStats(), Auth::User::CredentialsCacheStats(), DelaySpec::dump(), DelayPool::dump(), ClientDelayPool::dump(), Mgr::FunAction::dump(), Mgr::MenuAction::dump(), MessageDelayPool::dump(), Fs::Ufs::UFSSwapDir::dump(), Mgr::StoreIoAction::dump(), Format::Format::dump(), EventScheduler::dump(), Ipc::ReadWriteLockStats::dump(), Mgr::ReconfigureAction::dump(), DiskdAction::dump(), Mgr::RotateAction::dump(), Mgr::OfflineToggleAction::dump(), Note::dump(), Auth::SchemeConfig::dump(), Mgr::InfoAction::dump(), dump_access_log(), dump_acl(), dump_acl_address(), dump_acl_b_size_t(), dump_acl_tos(), dump_address(), dump_b_int64_t(), dump_b_size_t(), dump_b_ssize_t(), dump_cachedir(), dump_cachemgrpasswd(), dump_CpuAffinityMap(), dump_denyinfo(), dump_externalAclHelper(), dump_generic_port(), dump_HeaderWithAclList(), dump_icap_service_failure_limit(), dump_int(), dump_int64_t(), dump_IpAddress_list(), dump_kb_int64_t(), dump_memcachemode(), dump_onoff(), dump_peer(), dump_peer_options(), dump_peers(), dump_PortCfg(), dump_refreshpattern(), dump_removalpolicy(), dump_sslproxy_cert_adapt(), dump_sslproxy_cert_sign(), dump_string(), dump_time_msec(), dump_time_t(), dump_tristate(), dump_u_short(), dump_uri_whitespace(), dump_UrlHelperTimeout(), dump_wccp2_amethod(), dump_wccp2_method(), dump_wccp2_service(), dump_wccp2_service_info(), dump_wordlist(), DumpAvgStat(), DumpCountersStats(), PconnPool::dumpHash(), PconnPool::dumpHist(), DumpInfo(), DumpIoStats(), DumpMallocStatistics(), DelayConfig::dumpPoolCount(), ClientDelayConfig::dumpPoolCount(), Rock::SwapDir::dumpRateOption(), Adaptation::Config::dumpService(), Adaptation::Config::DumpServiceGroups(), DumpServiceTimesStats(), Rock::SwapDir::dumpSizeOption(), fde::DumpStats(), fde::dumpStats(), Rock::SwapDir::dumpTimeOption(), fqdnStats(), fwdStats(), gopherEndHTML(), gopherHTMLFooter(), gopherHTMLHeader(), gopherToHTML(), header_mangler_dump_access(), header_mangler_dump_replacement(), httpHdrCcStatDumper(), httpHdrScStatDumper(), httpHdrScTargetStatDumper(), httpHeaderFieldStatDumper(), httpHeaderFldsPerHdrDumper(), httpHeaderStatDump(), httpHeaderStoreReport(), idnsStats(), ipcacheStatPrint(), lru_stats(), netdbBinaryExchange(), netdbDump(), Fs::Ufs::UFSSwapDir::optionIODump(), Store::Disk::optionObjectSizeDump(), DiskdIOStrategy::optionQ1Dump(), DiskdIOStrategy::optionQ2Dump(), Store::Disk::optionReadOnlyDump(), peerDigestStatsReport(), peerSourceHashCachemgr(), peerUserHashCachemgr(), printRadixNode(), redirectStats(), refreshCountsStats(), refreshCountsStatsEntry(), refreshStats(), squidaio_stats(), Store::Disks::stat(), Store::Controller::stat(), Store::Disk::stat(), MemStore::stat(), Transients::stat(), stat_ipcache_get(), statClientRequests(), statCountersHistograms(), statDigestBlob(), Fs::Ufs::UFSSwapDir::statfs(), DiskdIOStrategy::statfs(), Rock::SwapDir::statfs(), statHistBinDumper(), statHistEnumDumper(), statHistIntDumper(), statHistSBufDumper(), statObjects(), statPeerSelect(), DelaySpec::stats(), DelayBucket::stats(), DelayTaggedBucket::stats(), DelayUserBucket::stats(), DelayUser::stats(), DelayTagged::stats(), DelayPools::Stats(), Aggregate::stats(), VectorPool::stats(), ClassCBucket::stats(), ClassCHostPool::stats(), statUtilization(), storeCheckCachableStats(), storeDigestReport(), storeIdStats(), storeLogTagsHist(), xprof_show_item(), xprof_summary(), and xprof_summary_item().

storeAppendVPrintf()

void storeAppendVPrintf	(	StoreEntry *	e,
		const char *	fmt,
		va_list	vargs
	)

Definition at line 891 of file store.cc.

storeCheckCachableStats()

void storeCheckCachableStats

(

StoreEntry *

sentry

)

Definition at line 1022 of file store.cc.

References _store_check_cachable_hist::Default, _store_check_cachable_hist::missing_parts, _store_check_cachable_hist::negative_cached, _store_check_cachable_hist::no, _store_check_cachable_hist::non_get, _store_check_cachable_hist::not_entry_cachable, _store_check_cachable_hist::private_key, store_check_cachable_hist, storeAppendPrintf(), _store_check_cachable_hist::too_big, _store_check_cachable_hist::too_many_open_fds, _store_check_cachable_hist::too_many_open_files, _store_check_cachable_hist::too_small, _store_check_cachable_hist::wrong_content_length, and _store_check_cachable_hist::yes.

storeConfigure()

void storeConfigure

(

void

)

Definition at line 1319 of file store.cc.

References Store::Root(), and Store::Controller::updateLimits().

Referenced by configDoConfigure(), and storeSwapOutFileClosed().

storeCreateEntry()

StoreEntry* storeCreateEntry	(	const char *	,
		const char *	,
		const RequestFlags &	,
		const HttpRequestMethod &
	)

Like storeCreatePureEntry(), but also locks the entry and sets entry key.

Definition at line 783 of file store.cc.

References RequestFlags::cachable, RequestFlags::hierarchical, StoreEntry::lock(), logUrl, method, neighbors_do_private_keys, StoreEntry::setPrivateKey(), StoreEntry::setPublicKey(), and storeCreatePureEntry().

Referenced by StoreEntry::adjustVary(), asnCacheStart(), UrnState::created(), testRock::createEntry(), clientReplyContext::createStoreEntry(), Mgr::Action::createStoreEntry(), ClientHttpRequest::doCallouts(), netdbExchangeStart(), peerCountMcastPeersStart(), peerDigestRequest(), clientReplyContext::processExpired(), Ssl::ServerBump::ServerBump(), storeDigestRewriteStart(), and testUfs::testUfsSearch().

storeCreatePureEntry()

StoreEntry* storeCreatePureEntry	(	const char *	storeId,
		const char *	logUrl,
		const HttpRequestMethod &
	)

Creates a new StoreEntry with mem_obj and sets initial flags/states.

Definition at line 765 of file store.cc.

References StoreEntry::createMemObject(), debugs, EBIT_SET, ENTRY_VALIDATED, StoreEntry::flags, StoreEntry::lastref, method, NULL, PING_NONE, StoreEntry::ping_status, StoreEntry::refcount, squid_curtime, STORE_PENDING, StoreEntry::store_status, and StoreEntry::timestamp.

Referenced by MimeIcon::created(), and storeCreateEntry().

storeFreeMemory()

void storeFreeMemory

(

void

)

Definition at line 1381 of file store.cc.

References Store::FreeMemory(), NULL, and store_digest.

Referenced by SquidShutdown().

storeFsInit()

void storeFsInit

(

void

)

Definition at line 1684 of file store.cc.

References storeReplSetup().

Referenced by SquidMain().

storeGetMemSpace()

void storeGetMemSpace

(

int

size

)

Clear Memory storage to accommodate the given object len

Definition at line 1163 of file store.cc.

References Store::Controller::freeMemorySpace(), PROF_start, PROF_stop, Store::Root(), shutting_down, size, and storeGetMemSpace().

Referenced by store_client::readBody(), storeGetMemSpace(), and StoreEntry::write().

storeGetPublic()

StoreEntry* storeGetPublic	(	const char *	uri,
		const HttpRequestMethod &	method
	)

Definition at line 522 of file store.cc.

Referenced by StoreEntry::adjustVary(), asnCacheStart(), findPreviouslyCachedEntry(), testRock::getEntry(), StoreEntry::getPublic(), httpMaybeRemovePublic(), clientReplyContext::purgeDoPurgeHead(), and urnParseReply().

storeGetPublicByRequest()

StoreEntry* storeGetPublicByRequest	(	HttpRequest *	req,
		const KeyScope	keyScope
	)

Definition at line 534 of file store.cc.

References HttpRequest::method, Http::METHOD_GET, Http::METHOD_HEAD, NULL, and storeGetPublicByRequestMethod().

Referenced by findPreviouslyCachedEntry(), StoreEntry::getPublicByRequest(), htcpClrStore(), peerDigestRequest(), and clientReplyContext::processExpired().

storeGetPublicByRequestMethod()

StoreEntry* storeGetPublicByRequestMethod	(	HttpRequest *	req,
		const HttpRequestMethod &	method,
		const KeyScope	keyScope
	)

Definition at line 528 of file store.cc.

References Store::Controller::find(), method, Store::Root(), and storeKeyPublicByRequestMethod().

Referenced by StoreEntry::getPublicByRequestMethod(), httpMaybeRemovePublic(), and storeGetPublicByRequest().

storeInit()

void storeInit

(

void

)

Definition at line 1305 of file store.cc.

References Config, createRemovalPolicy(), eventAdd(), Store::Controller::init(), mem_policy, SquidConfig::memPolicy, NULL, Store::Root(), storeDigestInit(), storeKeyInit(), storeLateRelease, storeLogOpen(), storeRebuildStart(), and storeRegisterWithCacheManager().

Referenced by mainInitialize().

storeLateRelease()

static void storeLateRelease ( void *  )

static

Definition at line 1222 of file store.cc.

References DBG_IMPORTANT, debugs, eventAdd(), i, LateReleaseStack, NULL, Store::Controller::store_dirs_rebuilding, storeLateRelease, and StoreEntry::unlock().

storeRegisterWithCacheManager()

static void storeRegisterWithCacheManager ( void  )

static

Definition at line 1296 of file store.cc.

References Mgr::StoreIoAction::Create(), Mgr::RegisterAction(), Store::Stats(), and storeCheckCachableStats.

Referenced by storeInit().

storeReplAdd()

void storeReplAdd	(	const char *	type,
		REMOVALPOLICYCREATE *	create
	)

Definition at line 1693 of file store.cc.

References _storerepl_entry::create, DBG_IMPORTANT, debugs, i, storerepl_list, type, _storerepl_entry::typestr, and xrealloc().

Referenced by testUfs::commonInit(), and testRock::commonInit().

storeTooManyDiskFilesOpen()

int storeTooManyDiskFilesOpen

(

void

)

Definition at line 917 of file store.cc.

References Config, SquidConfig::max_open_disk_fds, and store_open_disk_fd.

Referenced by StoreEntry::checkCachable(), store_client::startSwapin(), and StoreEntry::swapOut().

Variable Documentation

LateReleaseStack

std::stack<StoreEntry*> LateReleaseStack

static

Definition at line 114 of file store.cc.

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

memStatusStr

const char* memStatusStr[]

Initial value:

= {
    "NOT_IN_MEMORY",
    "IN_MEMORY"
}

Todo:

Convert these string constants to enum string-arrays generated

Definition at line 68 of file store.cc.

pingStatusStr

const char* pingStatusStr[]

Initial value:

= {
    "PING_NONE",
    "PING_WAITING",
    "PING_DONE"
}

Definition at line 73 of file store.cc.

store_check_cachable_hist

struct _store_check_cachable_hist store_check_cachable_hist

Referenced by StoreEntry::checkCachable(), and storeCheckCachableStats().

storeCheckCachableStats

OBJH storeCheckCachableStats

static

Definition at line 108 of file store.cc.

Referenced by storeRegisterWithCacheManager().

storeLateRelease

EVH storeLateRelease

static

Definition at line 109 of file store.cc.

Referenced by storeInit(), and storeLateRelease().

storerepl_list

storerepl_entry_t* storerepl_list = NULL

static

Definition at line 102 of file store.cc.

Referenced by createRemovalPolicy(), and storeReplAdd().

storeStatusStr

const char* storeStatusStr[]

Initial value:

= {
    "STORE_OK",
    "STORE_PENDING"
}

Definition at line 79 of file store.cc.

swapStatusStr

const char* swapStatusStr[]

Initial value:

= {
    "SWAPOUT_NONE",
    "SWAPOUT_WRITING",
    "SWAPOUT_DONE",
    "SWAPOUT_FAILED"
}

Definition at line 84 of file store.cc.

Referenced by StoreEntry::attachToDisk().