cbdata.cc File Reference

#include "squid.h"
#include "cbdata.h"
#include "Generic.h"
#include "mem/Allocator.h"
#include "mem/Pool.h"
#include "mgr/Registration.h"
#include "Store.h"
#include <climits>
#include <cstddef>
#include <map>

Include dependency graph for cbdata.cc:

Go to the source code of this file.

Classes
class	cbdata
struct	CBDataIndex

Functions
cbdata_type	cbdataInternalAddType (cbdata_type type, const char *name, int size)
void *	cbdataInternalAlloc (cbdata_type type)
static void	cbdataRealFree (cbdata *c)
void *	cbdataInternalFree (void *p)
void	cbdataInternalLock (const void *p)
void	cbdataInternalUnlock (const void *p)
int	cbdataReferenceValid (const void *p)
int	cbdataInternalReferenceDoneValid (void **pp, void **tp)

Variables
static int	cbdataCount = 0
struct CBDataIndex *	cbdata_index = nullptr
int	cbdata_types = 0
static std::map< const void *, cbdata * >	cbdata_htable

Function Documentation

cbdataInternalAddType()

cbdata_type cbdataInternalAddType	(	cbdata_type	type,
		const char *	label,
		int	size
	)

Create a run-time registration for the class type with cbdata memory allocator.

Note

For internal CBDATA use only.

Definition at line 117 of file cbdata.cc.

References assert, cbdata_index, cbdata_types, memPoolCreate, CBDataIndex::pool, size, xmalloc, and xrealloc().

cbdataInternalAlloc()

void * cbdataInternalAlloc

(

cbdata_type

type

)

Allocates a new entry of a registered CBDATA type.

Note

For internal CBDATA use only.

Definition at line 145 of file cbdata.cc.

References Mem::Allocator::alloc(), assert, cbdata_htable, cbdata_index, cbdata_types, cbdataCount, cbdata::cookie, cbdata::Cookie, cbdata::data, debugs, cbdata::locks, CBDataIndex::pool, cbdata::type, and cbdata::valid.

cbdataInternalFree()

void * cbdataInternalFree

(

void *

p

)

Frees a entry allocated by cbdataInternalAlloc().

Once this has been called cbdataReferenceValid() and cbdataReferenceValidDone() will return false regardless of whether there are remaining cbdata references.

cbdataReferenceDone() must still be called for any active references to the cbdata entry. The cbdata entry will be freed only when the last reference is removed.

Note

For internal CBDATA use only.

Definition at line 203 of file cbdata.cc.

References assert, cbdataRealFree(), debugs, and cbdata::FromUserData().

cbdataInternalLock()

void cbdataInternalLock

(

const void *

p

)

Definition at line 221 of file cbdata.cc.

References assert, debugs, cbdata::FromUserData(), and INT_MAX.

Referenced by logfile_mod_daemon_open().

cbdataInternalReferenceDoneValid()

int cbdataInternalReferenceDoneValid	(	void **	p,
		void **	tp
	)

Removes a reference created by cbdataReference() and checks it for validity. Meant to be used on the last dereference, usually to make a callback.

void *cbdata;
...
if (cbdataReferenceValidDone(reference, &cbdata)))
    callback(..., cbdata);

Parameters

var	The reference variable. Will be automatically cleared to nullptr
ptr	A temporary pointer to the referenced data (if valid).

Definition at line 282 of file cbdata.cc.

References cbdataInternalUnlock(), and cbdataReferenceValid().

cbdataInternalUnlock()

void cbdataInternalUnlock

(

const void *

p

)

Definition at line 238 of file cbdata.cc.

References assert, cbdataRealFree(), debugs, and cbdata::FromUserData().

Referenced by cbdataInternalReferenceDoneValid(), and logfile_mod_daemon_close().

cbdataRealFree()

static void cbdataRealFree ( cbdata *  c )

static

Definition at line 173 of file cbdata.cc.

References cbdata_htable, cbdataCount, cbdata::data, and debugs.

Referenced by cbdataInternalFree(), and cbdataInternalUnlock().

cbdataReferenceValid()

int cbdataReferenceValid

(

const void *

p

)

Parameters

p	A cbdata entry reference pointer.

Return values

0	A reference is stale. The pointer refers to a entry already freed.
true	The reference is valid and active.

Definition at line 265 of file cbdata.cc.

References assert, debugs, and cbdata::FromUserData().

Referenced by CbcPointer< Cbc >::CbcPointer(), ConnStateData::borrowPinnedConnection(), ACLChecklist::calcImplicitAnswer(), ACLChecklist::callerGone(), AsyncJob::callException(), AsyncJob::callStart(), StoreIOStateCb::canDial(), EventDialer::canDial(), CommCbFunPtrCallT< Dialer >::canFire(), cbdataInternalReferenceDoneValid(), EventScheduler::checkEvents(), Helper::Session::checkForTimedOutRequests(), clientGetMoreData(), clientSocketDetach(), clientSocketRecipient(), clientStreamDetach(), ACLFilledChecklist::conn(), diskHandleRead(), downloaderRecipient(), EventScheduler::dump(), esiBufferRecipient(), esiProcessStream(), esiStreamDetach(), esiStreamRead(), esiStreamStatus(), externalAclHandleReply(), ACLChecklist::fastCheck(), ftpSendReply(), CbcPointer< Cbc >::get(), ClientHttpRequest::getConn(), Comm::Connection::getPeer(), DiskdIOStrategy::handle(), helperDispatch(), helperHandleRead(), helperReturnBuffer(), helperStatefulDispatch(), helperStatefulHandleRead(), ClientRequestContext::httpStateIsValid(), idnsCallbackOneWithAnswer(), ConnStateData::isOpen(), TunnelStateData::keepGoingAfterRead(), ClientHttpRequest::noteAdaptationAnswer(), CbcPointer< Cbc >::operator=(), peerCountMcastPeersAbort(), peerDigestFetchedEnough(), peerDigestHandleReply(), ACLChecklist::prepNonBlocking(), TunnelStateData::ReadClient(), TunnelStateData::ReadServer(), clientReplyContext::sendMoreData(), SslBumpEstablish(), tunnelStartShoveling(), CallbackData::valid(), PeerPoolMgr::validPeer(), TunnelStateData::writeClientDone(), TunnelStateData::WriteClientDone(), TunnelStateData::writeServerDone(), and TunnelStateData::WriteServerDone().

Variable Documentation

cbdata_htable

std::map<const void *, cbdata *> cbdata_htable

static

Definition at line 93 of file cbdata.cc.

Referenced by cbdataInternalAlloc(), cbdataRealFree(), and cbdata::FromUserData().

cbdata_index

struct CBDataIndex * cbdata_index = nullptr

Referenced by cbdata::~cbdata(), cbdataInternalAddType(), and cbdataInternalAlloc().

cbdata_types

int cbdata_types = 0

Definition at line 90 of file cbdata.cc.

Referenced by cbdataInternalAddType(), and cbdataInternalAlloc().

cbdataCount

int cbdataCount = 0

static

Definition at line 26 of file cbdata.cc.

Referenced by cbdataInternalAlloc(), and cbdataRealFree().