#include <SGAudSvc.h>

Inheritance diagram for SGAudSvc:

Collaboration diagram for SGAudSvc:

Public Member Functions
	SGAudSvc (const std::string &name, ISvcLocator *pSvcLocator)
	Constructor with parameters: More...

virtual	~SGAudSvc ()
	Destructor: More...

StatusCode	initialize ()
	Gaudi Service Implementation. More...

StatusCode	finalize ()

virtual StatusCode	queryInterface (const InterfaceID &riid, void **ppvInterface)

void	handle (const Incident &incident)
	incident service handle for EndEvent. More...

virtual void	SGAudit (const std::string &key, const CLID &id, const int &fnc, const int &store_id)

bool	SGGetCurrentAlg ()
	Gets name of curently running algorithm from AlgContextSvc. More...

void	setFakeCurrentAlg (const std::string &)
	For implementing custom increased granularity auditing of for instance tools. More...

void	clearFakeCurrentAlg ()
	For implementing custom increased granularity auditing of for instance tools. More...

virtual bool	SGSetCurrentAlg ()

MsgStream &	msg () const

MsgStream &	msg (const MSG::Level lvl) const

bool	msgLvl (const MSG::Level lvl) const

Static Public Member Functions
static const InterfaceID &	interfaceID ()
	Inline methods: More...

Private Types
typedef std::map< std::string, std::set< std::string > >	DataMap

Private Member Functions
	SGAudSvc ()
	Default constructor: More...

void	SGAudRETRIEVE (std::string SGobject)

void	SGAudRECORD (std::string SGobject)

void	getNobj (std::string name)

void	addRead ()

void	addWrite ()

void	monitor ()
	just counts events. called at EndEvent incident More...

void	writeJSON ()

Private Attributes
MsgStream	m_msg
	MsgStream for talking with the outside world. More...

IAlgContextSvc *	p_algCtxSvc
	Pointer to the `AlgContextScv`. More...

IClassIDSvc *	m_pCID

std::string	m_outFileName
	Name of the output file. More...

std::string	m_allFileName

std::string	m_sumFileName

bool	m_ignoreFakeAlgs
	Whether to ignore fake current algs. More...

bool	m_useCLID
	Whether to use CLID or Data Obj Name in JSON output file. More...

std::vector< std::string >	m_vObj
	Vector of accessed SG objects names. More...

std::vector< std::string >	m_vAlg
	Vector of names of algorithms accessing SG. More...

std::map< int, int >	m_timesRead
	map counting Reads of each object by each algorithm. More...

std::map< int, int >	m_timesWritten
	map counting Writes of each object by each algorithm. More...

std::string	m_currAlg

std::string	m_currObj

std::string	m_fakeCurrAlg

int	m_nCurrAlg

int	m_nCurrObj

int	m_nEvents

int	m_startEvent

DataMap	m_read

DataMap	m_write

std::ofstream	m_ofa

std::ofstream	m_ofs

bool	m_inExec

Friends
class	SvcFactory< SGAudSvc >

Detailed Description

Definition at line 40 of file SGAudSvc.h.

Member Typedef Documentation

◆ DataMap

typedef std::map<std::string, std::set<std::string> > SGAudSvc::DataMap

private

Definition at line 145 of file SGAudSvc.h.

Constructor & Destructor Documentation

◆ SGAudSvc() [1/2]

SGAudSvc::SGAudSvc	(	const std::string &	name,
		ISvcLocator *	pSvcLocator
	)

Constructor with parameters:

Definition at line 39 of file SGAudSvc.cxx.

                                                                     : 
   AthService  ( name,     pSvcLocator ),
   m_msg       ( msgSvc(),        name ), 
   p_algCtxSvc(0), m_pCID(0), m_useCLID(true),
   m_nCurrAlg(0),
   m_nCurrObj(0),
   m_nEvents(0), m_startEvent(3), m_inExec(false)
 {
   //
   // Property declaration
   // 
   declareProperty( "OutFileName", m_outFileName = "SGAudSvc.out",
            "Name of the output file to hold SGAudSvc data" );
  
   declareProperty( "FullFileName", m_allFileName = "",
            "Name of the output file to hold the full SG aud data");
  
   declareProperty( "SummaryFileName", m_sumFileName = "",
            "Name of the output file to hold the summary output in json format");
  
   declareProperty( "IgnoreFakeAlgs", m_ignoreFakeAlgs = false,
            "Set to ignore any attempts to override current-alg" );
  
   declareProperty( "StartEvent", m_startEvent = 3,
            "Event number to start recording data" );
  
   declareProperty( "UseCLID", m_useCLID = true,
            "Use CLID or DataObj name in Summary File" );
 }

◆ ~SGAudSvc()

SGAudSvc::~SGAudSvc ( )

virtual

Destructor:

Definition at line 72 of file SGAudSvc.cxx.

 { 
   m_msg << MSG::DEBUG << "Calling destructor" << endmsg;
 }

◆ SGAudSvc() [2/2]

SGAudSvc::SGAudSvc ( )

private

Default constructor:

Member Function Documentation

◆ addRead()

void SGAudSvc::addRead ( )

private

Definition at line 447 of file SGAudSvc.cxx.

                  {
   int oaHash=m_nCurrObj*1000 + m_nCurrAlg;
   if (m_timesRead.end()!=m_timesRead.find(oaHash)){
     m_timesRead.find(oaHash)->second++;
   } 
   else{
     std::pair<int,int> p(oaHash,1);
     m_timesRead.insert(p);
   }
   return;
 }

◆ addWrite()

void SGAudSvc::addWrite ( )

private

Definition at line 462 of file SGAudSvc.cxx.

                   {
   int oaHash=m_nCurrObj*1000 + m_nCurrAlg;
   if (m_timesWritten.end()!=m_timesWritten.find(oaHash)){
     m_timesWritten.find(oaHash)->second++; 
   }
   else{
     std::pair<int,int> p(oaHash,1);
     m_timesWritten.insert(p);
   }
   return;
 }

◆ clearFakeCurrentAlg()

void SGAudSvc::clearFakeCurrentAlg ( )

virtual

For implementing custom increased granularity auditing of for instance tools.

Reimplemented from ISGAudSvc.

Definition at line 482 of file SGAudSvc.cxx.

482 { m_fakeCurrAlg.clear(); }

◆ finalize()

StatusCode SGAudSvc::finalize ( )

Definition at line 132 of file SGAudSvc.cxx.

                    {
  
   m_msg << MSG::INFO << "Finalizing " << name() <<"..."<< endmsg;
   
   if (m_vAlg.size()==0) {
     m_msg << MSG::WARNING<<"No data gathered. This might be because you did not run over at least 3 events."<<endmsg;
     return StatusCode::SUCCESS;
   }
   
   m_msg << MSG::INFO<<"Writing output to: "<<m_outFileName<<endmsg;
   std::ofstream f( m_outFileName.c_str() );
   
   f << "Algs: " << m_vAlg.size() << std::endl;
   std::vector<std::string>::iterator i;
   for (i=m_vAlg.begin();i<m_vAlg.end();++i) {
           f << (*i) << std::endl;
   }
   
   f << "Obj: "<< m_vObj.size()<<std::endl;
   for (i=m_vObj.begin();i<m_vObj.end();++i) {
           f << (*i) << std::endl; 
   }
  
   
   for (unsigned int w=0;w<m_vAlg.size();w++){
     for(unsigned int q=0;q<m_vObj.size();q++){
       int oaHash=q*1000 + w;
       if (m_timesRead.find(oaHash)==m_timesRead.end())
     f << "0:";
       else
     f << m_timesRead.find(oaHash)->second << ":";
       if (m_timesWritten.find(oaHash)==m_timesWritten.end())
     f << "0\t";
       else
     f << m_timesWritten.find(oaHash)->second << "\t";   
     }
     f << std::endl;
   }
   
   f.close();
  
   if (m_ofa.is_open()) m_ofa.close();
  
   if (m_ofs.is_open()) {
  
     writeJSON();
  
     m_ofs.close();
   }
  
  
   return StatusCode::SUCCESS;
 }

◆ getNobj()

void SGAudSvc::getNobj ( std::string name )

private

Definition at line 427 of file SGAudSvc.cxx.

                                {
   std::vector<std::string>::iterator i;
   int index=0;
   for (i=m_vObj.begin();i<m_vObj.end();++i){
     if (*i==name) {
       m_nCurrObj=index;
       m_currObj=name;
       return;
     }
     index++;
   }  
   m_vObj.push_back(name);
   m_nCurrObj=index;
   m_currObj=name;
 return;
 }

◆ handle()

void SGAudSvc::handle ( const Incident & incident )

incident service handle for EndEvent.

Calls monitor. There should be more elegant way to get number of events passed.

Definition at line 213 of file SGAudSvc.cxx.

 {
   if ( m_msg.level() <= MSG::VERBOSE ) {
     m_msg << MSG::VERBOSE << "Entering handle(): " << endmsg
       << "  Incidence type: " << inc.type()   << endmsg
       << "            from: " << inc.source() << endmsg;
   }
  
   if (inc.type() == IncidentType::BeginEvent) {
     if (m_ofa.is_open())
       m_ofa << "---- BEGIN EVENT " << m_nEvents << " ----" << std::endl;
     m_inExec = true;
  
   }
  
   // Performing performance-monitoring for EndEvent incident
   if ( inc.type() == IncidentType::EndEvent ) {
     monitor();
  
     if (m_ofa.is_open()) 
       m_ofa << "---- END EVENT " << m_nEvents << " ----" << std::endl;
     m_inExec = false;
  
   }
  
   // Performing performance-monitoring for BeginRun incident
   // at this point everybody has been initialized, we can harvest performance
   // data for the initialize step.
   
   if ( inc.type() == IncidentType::BeginRun ) {
     monitor();
   }
  
   return;
 }

◆ initialize()

StatusCode SGAudSvc::initialize ( )

Gaudi Service Implementation.

Definition at line 82 of file SGAudSvc.cxx.

                      {
   
   // initialize MsgStream
   m_msg.setLevel( m_outputLevel.value() );
  
   m_msg << MSG::INFO  << "Initializing " << name() << "..."  << endmsg;
   
   if ( AthService::initialize().isFailure() ) {
     m_msg << MSG::ERROR  << "Could not intialize base class !!"  << endmsg;
     return StatusCode::FAILURE;
   }
  
   static const bool CREATEIF(true);
   
   if ( service("AlgContextSvc",p_algCtxSvc,CREATEIF).isFailure() ) {
     m_msg << MSG::ERROR << "Unable to retrieve the AlgContextSvc" << endmsg;
     return StatusCode::FAILURE;
   }
   
   assert(p_algCtxSvc);
  
   if ( service("ClassIDSvc",m_pCID,CREATEIF).isFailure() ) {
     m_msg << MSG::ERROR << "Unable to retrieve the ClassIDSvc" << endmsg;
     return StatusCode::FAILURE;
   }
  
   if (m_allFileName != "") {
     m_ofa.open(m_allFileName.c_str());
   }
  
   if (m_sumFileName != "") {
     m_ofs.open(m_sumFileName.c_str());
   }
   
   // Set to be listener for end-of-event
   ServiceHandle<IIncidentSvc> incSvc( "IncidentSvc", this->name() );
   if ( !incSvc.retrieve().isSuccess() ) {
     m_msg << MSG::ERROR << "Unable to get the IncidentSvc" << endmsg;
     return StatusCode::FAILURE;
   }
   incSvc->addListener( this, IncidentType::BeginRun );
   incSvc->addListener( this, IncidentType::BeginEvent );
   incSvc->addListener( this, IncidentType::EndEvent );
  
   return StatusCode::SUCCESS;
 }

◆ interfaceID()

const InterfaceID & SGAudSvc::interfaceID ( )

inlinestatic

Inline methods:

Definition at line 158 of file SGAudSvc.h.

 { 
    return ISGAudSvc::interfaceID(); 
 }

◆ monitor()

void SGAudSvc::monitor ( )

private

just counts events. called at EndEvent incident

Definition at line 264 of file SGAudSvc.cxx.

                  {
   m_nEvents++;
   return;
 }

◆ msg() [1/2]

MsgStream& AthCommonMsg< Service >::msg ( ) const

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                 {
     return this->msgStream();
   }

◆ msg() [2/2]

MsgStream& AthCommonMsg< Service >::msg ( const MSG::Level lvl ) const

inlineinherited

Definition at line 27 of file AthCommonMsg.h.

                                                   {
     return this->msgStream(lvl);
   }

◆ msgLvl()

bool AthCommonMsg< Service >::msgLvl ( const MSG::Level lvl ) const

inlineinherited

Definition at line 30 of file AthCommonMsg.h.

                                                {
     return this->msgLevel(lvl);
   }

◆ queryInterface()

StatusCode SGAudSvc::queryInterface	(	const InterfaceID &	riid,
		void **	ppvInterface
	)

virtual

Definition at line 190 of file SGAudSvc.cxx.

 {
   if ( ISGAudSvc::interfaceID().versionMatch(riid) ) {
     *ppvInterface = dynamic_cast<ISGAudSvc*>(this);
   } else {
     // Interface is not directly available : try out a base class
     return AthService::queryInterface(riid, ppvInterface);
   }
   addRef();
   return StatusCode::SUCCESS;
 }

◆ setFakeCurrentAlg()

void SGAudSvc::setFakeCurrentAlg ( const std::string & s )

virtual

For implementing custom increased granularity auditing of for instance tools.

Reimplemented from ISGAudSvc.

Definition at line 477 of file SGAudSvc.cxx.

477 { m_fakeCurrAlg=s; }

◆ SGAudit()

void SGAudSvc::SGAudit	(	const std::string &	key,
		const CLID &	id,
		const int &	fnc,
		const int &	store_id
	)

virtual

Reimplemented from ISGAudSvc.

Definition at line 317 of file SGAudSvc.cxx.

                                                {
  
   // we can sometimes get here really early, before initialization.
   if (m_pCID == 0) { return; }
  
   bool a = SGGetCurrentAlg();  
  
   if (m_nEvents >= m_startEvent && store_id == 0 && a) {
     if (typ == 0) {
       SGAudRETRIEVE(key);
     } else {
       SGAudRECORD(key);
     }
   }
  
   std::string idname;
  
   if (m_ofa.is_open() || ( m_ofs.is_open() && ! m_useCLID ) ) {
       if( ! m_pCID->getTypeNameOfID(id,idname).isSuccess()) {
     std::ostringstream ost;
     ost << id;
     idname = ost.str();
       }
   }
  
   if (m_ofa.is_open()) {
     m_ofa << ( (typ == 1) ? "RECORD" : "RETRIEVE" ) << " clid: " << id 
       << " | ";
     
     m_ofa << idname;
  
     m_ofa << "  key: " << key << "  alg: " << m_currAlg 
       << "  store: " << store_id
       << std:: endl;
   }    
  
   // store stuff for the summary
  
   if (!m_ofs.is_open()) return;
   
   if (m_nEvents < m_startEvent || !m_inExec) return;
   
   if (m_currAlg == "----") return;
     
   std::string kk;
   if (m_useCLID) {
     std::ostringstream ost;
     ost << id << "/" << key;
     kk = ost.str();
   } else {
     kk = idname + "/" + key;
   }
  
   DataMap::iterator itr;
   if (typ == 0) {
     itr = m_read.find(m_currAlg);
     if (itr != m_read.end()) {
       itr->second.insert(kk);
     } else {
       m_read[m_currAlg] = std::set<std::string> ( {kk} );
     }
   } else {
     itr = m_write.find(m_currAlg);
     if (itr != m_write.end()) {
       itr->second.insert(kk);
     } else {
       m_write[m_currAlg] = std::set<std::string> ( {kk} );
     }
   }
 }

◆ SGAudRECORD()

void SGAudSvc::SGAudRECORD ( std::string SGobject )

private

Definition at line 296 of file SGAudSvc.cxx.

                                        {
   // if (m_nEvents<3) return;
   if (SGobject=="") SGobject="noKey";  
   for (unsigned int i = 0; i < SGobject.length(); i++)        
     if (!std::isdigit(SGobject[i])){
       //isAnumb=false; 
       break;   
     }
   
   if (m_currObj==SGobject) 
     addWrite();
   else {
     getNobj(SGobject);
     addWrite();
   }
  
   return;   
 }

◆ SGAudRETRIEVE()

void SGAudSvc::SGAudRETRIEVE ( std::string SGobject )

private

Definition at line 272 of file SGAudSvc.cxx.

                                          {
   // if (m_nEvents<3) return;
   if (SGobject=="") SGobject="noKey";
   bool isAnumb=true;
   for (unsigned int i = 0; i < SGobject.length(); i++)        
     if (!std::isdigit(SGobject[i])){
       isAnumb=false; 
       break;   
     }
  
   if (!isAnumb){
     if (m_currObj==SGobject) 
       addRead();
     else {
       getNobj(SGobject);
       addRead();
     }
   }
   return;   
 }

◆ SGGetCurrentAlg()

bool SGAudSvc::SGGetCurrentAlg ( )

Gets name of curently running algorithm from AlgContextSvc.

Definition at line 392 of file SGAudSvc.cxx.

                          {
  
   IAlgorithm *asdf = p_algCtxSvc->currentAlg();
   if (!asdf || m_nEvents==0) { // to skip before first event 
     m_currAlg="----";
     m_nCurrAlg=-1;
     return false;
   }
   std::string name = asdf->name();
   
   if ( !m_ignoreFakeAlgs && !m_fakeCurrAlg.empty() )
     name=m_fakeCurrAlg;
   
   if (name!=m_currAlg){
     std::vector<std::string>::iterator i;
     int index=0;
     for (i=m_vAlg.begin();i<m_vAlg.end();++i){
       if (*i==name) {
     m_nCurrAlg=index;
     m_currAlg=name;
     return true;
       }
       index++;
     }
     m_vAlg.push_back(name);
     m_nCurrAlg=index;
     m_currAlg=name;
     return true;
   }
   return true;
 }

◆ SGSetCurrentAlg()

virtual bool ISGAudSvc::SGSetCurrentAlg ( )

inlinevirtualinherited

Definition at line 32 of file ISGAudSvc.h.

32 {return true;};//std::string CurrAlg

◆ writeJSON()

void SGAudSvc::writeJSON ( )

private

Definition at line 487 of file SGAudSvc.cxx.

                     {
  
   DataMap::const_iterator itr;
   std::set<std::string>::const_iterator it2;
   std::vector<std::string>::const_iterator ia;
   
   m_ofs << "{ \"algorithms\" : [" << std::endl;
   for (ia = m_vAlg.begin(); ia != m_vAlg.end(); ++ia) {
     m_ofs << " {" << std::endl;
     m_ofs << "  \"name\" : \"" << *ia << "\"," << std::endl;
     m_ofs << "  \"inputs\" : [";
     
     itr = m_read.find(*ia);
     if (itr != m_read.end()) {
       for (it2 = itr->second.begin(); it2 != itr->second.end(); ++it2) {
     if (it2 != itr->second.begin()) m_ofs << ",";
     m_ofs << "\"" << *it2 << "\"";
       }
     }
     m_ofs << "]," << std::endl;
     
     m_ofs << "  \"outputs\" : [";
     
     itr = m_write.find(*ia);
     if (itr != m_write.end()) {
       for (it2 = itr->second.begin(); it2 != itr->second.end(); ++it2) {
     if (it2 != itr->second.begin()) m_ofs << ",";
     m_ofs << "\"" << *it2 << "\"";
       }
     }
     m_ofs << "]," << std::endl;    
     m_ofs << " }," << std::endl;
   }
   m_ofs << " ]" << std::endl << "}" << std::endl;
  
 }

Friends And Related Function Documentation

◆ SvcFactory< SGAudSvc >

friend class SvcFactory< SGAudSvc >

friend

Definition at line 158 of file SGAudSvc.h.

Member Data Documentation

◆ m_allFileName

std::string SGAudSvc::m_allFileName

private

Definition at line 120 of file SGAudSvc.h.

◆ m_currAlg

std::string SGAudSvc::m_currAlg

private

Definition at line 136 of file SGAudSvc.h.

◆ m_currObj

std::string SGAudSvc::m_currObj

private

Definition at line 137 of file SGAudSvc.h.

◆ m_fakeCurrAlg

std::string SGAudSvc::m_fakeCurrAlg

private

Definition at line 138 of file SGAudSvc.h.

◆ m_ignoreFakeAlgs

bool SGAudSvc::m_ignoreFakeAlgs

private

Whether to ignore fake current algs.

Definition at line 123 of file SGAudSvc.h.

◆ m_inExec

bool SGAudSvc::m_inExec

private

Definition at line 150 of file SGAudSvc.h.

◆ m_msg

MsgStream SGAudSvc::m_msg

private

MsgStream for talking with the outside world.

Definition at line 113 of file SGAudSvc.h.

◆ m_nCurrAlg

int SGAudSvc::m_nCurrAlg

private

Definition at line 139 of file SGAudSvc.h.

◆ m_nCurrObj

int SGAudSvc::m_nCurrObj

private

Definition at line 140 of file SGAudSvc.h.

◆ m_nEvents

int SGAudSvc::m_nEvents

private

Definition at line 141 of file SGAudSvc.h.

◆ m_ofa

std::ofstream SGAudSvc::m_ofa

private

Definition at line 149 of file SGAudSvc.h.

◆ m_ofs

std::ofstream SGAudSvc::m_ofs

private

Definition at line 149 of file SGAudSvc.h.

◆ m_outFileName

std::string SGAudSvc::m_outFileName

private

Name of the output file.

Definition at line 120 of file SGAudSvc.h.

◆ m_pCID

IClassIDSvc* SGAudSvc::m_pCID

private

Definition at line 117 of file SGAudSvc.h.

◆ m_read

DataMap SGAudSvc::m_read

private

Definition at line 146 of file SGAudSvc.h.

◆ m_startEvent

int SGAudSvc::m_startEvent

private

Definition at line 142 of file SGAudSvc.h.

◆ m_sumFileName

std::string SGAudSvc::m_sumFileName

private

Definition at line 120 of file SGAudSvc.h.

◆ m_timesRead

std::map<int,int> SGAudSvc::m_timesRead

private

map counting Reads of each object by each algorithm.

Definition at line 133 of file SGAudSvc.h.

◆ m_timesWritten

std::map<int,int> SGAudSvc::m_timesWritten

private

map counting Writes of each object by each algorithm.

Definition at line 135 of file SGAudSvc.h.

◆ m_useCLID

bool SGAudSvc::m_useCLID

private

Whether to use CLID or Data Obj Name in JSON output file.

Definition at line 126 of file SGAudSvc.h.

◆ m_vAlg

std::vector<std::string> SGAudSvc::m_vAlg

private

Vector of names of algorithms accessing SG.

Definition at line 131 of file SGAudSvc.h.

◆ m_vObj

std::vector<std::string> SGAudSvc::m_vObj

private

Vector of accessed SG objects names.

Definition at line 129 of file SGAudSvc.h.

◆ m_write

DataMap SGAudSvc::m_write

private

Definition at line 147 of file SGAudSvc.h.

◆ p_algCtxSvc

IAlgContextSvc* SGAudSvc::p_algCtxSvc

private

Pointer to the AlgContextScv.

Definition at line 116 of file SGAudSvc.h.

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

Public Member Functions

Static Public Member Functions

Private Types

Private Member Functions

Private Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ DataMap

Constructor & Destructor Documentation

◆ SGAudSvc() [1/2]

◆ ~SGAudSvc()

◆ SGAudSvc() [2/2]

Member Function Documentation

◆ addRead()

◆ addWrite()

◆ clearFakeCurrentAlg()

◆ finalize()

◆ getNobj()

◆ handle()

◆ initialize()

◆ interfaceID()

◆ monitor()

◆ msg() [1/2]

◆ msg() [2/2]

◆ msgLvl()

◆ queryInterface()

◆ setFakeCurrentAlg()

◆ SGAudit()

◆ SGAudRECORD()

◆ SGAudRETRIEVE()

◆ SGGetCurrentAlg()

◆ SGSetCurrentAlg()

◆ writeJSON()

Friends And Related Function Documentation

◆ SvcFactory< SGAudSvc >

Member Data Documentation

◆ m_allFileName

◆ m_currAlg

◆ m_currObj

◆ m_fakeCurrAlg

◆ m_ignoreFakeAlgs

◆ m_inExec

◆ m_msg

◆ m_nCurrAlg

◆ m_nCurrObj

◆ m_nEvents

◆ m_ofa

◆ m_ofs

◆ m_outFileName

◆ m_pCID

◆ m_read

◆ m_startEvent

◆ m_sumFileName

◆ m_timesRead

◆ m_timesWritten

◆ m_useCLID

◆ m_vAlg

◆ m_vObj

◆ m_write

◆ p_algCtxSvc