ToolSvc Class Reference

This service manages tools. More...

#include <ToolSvc.h>

Inheritance diagram for ToolSvc:

[legend]

Collaboration diagram for ToolSvc:

[legend]

List of all members.

Public Types
typedef std::list< IAlgTool * >	ListTools
Public Member Functions
virtual StatusCode	initialize ()
	Initialize the service.
virtual StatusCode	finalize ()
	Finalize the service.
virtual StatusCode	start ()
virtual StatusCode	stop ()
virtual StatusCode	retrieve (const std::string &type, const InterfaceID &iid, IAlgTool *&tool, const IInterface *parent, bool createIf)
	Retrieve tool, create it by default as common tool if it does not already exist.
virtual StatusCode	retrieve (const std::string &tooltype, const std::string &toolname, const InterfaceID &iid, IAlgTool *&tool, const IInterface *parent, bool createIf)
	Retrieve tool, create it by default as common tool if it does not already exist.
virtual std::vector< std::string >	getInstances (const std::string &toolType)
	Get names of all tool instances of a given type.
virtual StatusCode	releaseTool (IAlgTool *tool)
	Release tool.
StatusCode	create (const std::string &type, const IInterface *parent, IAlgTool *&tool)
	Create Tool standard way with automatically assigned name.
StatusCode	create (const std::string &type, const std::string &name, const IInterface *parent, IAlgTool *&tool)
	Create Tool standard way with specified name.
bool	existsTool (const std::string &toolname) const
	Check if the tool instance exists.
std::string	nameTool (const std::string &nameByUser, const IInterface *parent)
	Get Tool full name by combining nameByUser and "parent" part.
unsigned long	refCountTool (IAlgTool *tool) const
	Get current refcount for tool.
	ToolSvc (const std::string &name, ISvcLocator *svc)
	Standard Constructor.
virtual	~ToolSvc ()
	Destructor.
virtual void	registerObserver (IToolSvc::Observer *obs)
virtual void	unRegisterObserver (IToolSvc::Observer *obs)
Private Member Functions
unsigned long	totalToolRefCount () const
	The total number of refCounts on all tools in the instancesTools list.
unsigned long	totalToolRefCount (const ListTools &) const
	The total number of refCounts on all tools in the list.
unsigned long	minimumToolRefCount () const
	The minimum number of refCounts of all tools.
StatusCode	finalizeTool (IAlgTool *itool) const
	Finalize the given tool, with exception handling.
Private Attributes
ListTools	m_instancesTools
	Common Tools.
IHistorySvc *	m_pHistorySvc
	Pointer to HistorySvc.
std::vector< IToolSvc::Observer * >	m_observers

---

Detailed Description

This service manages tools.

Tools can be common, in which case a single instance can be shared by different algorithms, or private in which case it is necessary to specify the parent when requesting it. The parent of a tool can be an algortihm or a Service The environment of a tool is set by using that of the parent. A common tool is considered to belong to the ToolSvc itself.

Author:

G. Corti, P. Mato

Definition at line 23 of file ToolSvc.h.

---

Member Typedef Documentation

typedef std::list<IAlgTool*> ToolSvc::ListTools

Definition at line 28 of file ToolSvc.h.

---

Constructor & Destructor Documentation

ToolSvc::ToolSvc	(	const std::string &	name,
		ISvcLocator *	svc
	)

Standard Constructor.

Parameters:

	name	String with service name
	svc	Pointer to service locator interface

Definition at line 33 of file ToolSvc.cpp.

  : base_class(name, svc),
    m_pHistorySvc(0)
 { }

ToolSvc::~ToolSvc

(

)

[virtual]

Destructor.

Definition at line 40 of file ToolSvc.cpp.

{

}

---

Member Function Documentation

StatusCode ToolSvc::initialize

(

)

[virtual]

Initialize the service.

Reimplemented from Service.

Definition at line 47 of file ToolSvc.cpp.

{

  // initialize the Service Base class
  StatusCode status = Service::initialize();
  if ( status.isFailure() )
  {
    MsgStream log( msgSvc(), name() );
    log << MSG::ERROR << "Unable to initialize the Service" << endmsg;
    return status;
  }

  // set my own (ToolSvc) properties via the jobOptionService
  if (setProperties().isFailure()) {
    MsgStream log( msgSvc(), name() );
    log << MSG::ERROR << "Unable to set base properties" << endmsg;
    return StatusCode::FAILURE;
  }

  return status;
}

StatusCode ToolSvc::finalize

(

)

[virtual]

Finalize the service.

Algorithm: 2 passes. First pass:

• do not explicitly release any tools
• finalize tools, in the order of increasing number of refCounts Second pass:
• explicitly release all tools, one release() on all tools per loop. -> tools are deleted in the order of increasing number of refCounts.

Inner loop: full loop over all left-over tools + finalize tools with the minimum number of refCounts in the list. + Remove finalized tools from list of tools, and add them to the list of finalized tools, to be deleted at the end. This way, any non-finalized tools who still reference already finalized tools in their finalize() will still find a live tool. Outer loop: keep on going until nothing changes in the list of tools. Checking for: + number of left-over tools + total number of refcounts + minimum number of refcounts

Reimplemented from Service.

Definition at line 71 of file ToolSvc.cpp.

{
  // Finalize and delete all left-over tools. Normally all tools created with
  // ToolSvc are left over, since ToolSvc holds a refCount (via AlgTool ctor).
  // Several cases need to be covered:
  // 1) Simple dependencies: no circular dependencies between tools,
  //    and tools not using other tools
  // 2) Tools-using-tools (but no circular dependencies)
  //   a) release() is called in the tool::finalize() (e.g. via GaudiAlgorithm)
  //   b) release() is called in the tool destructor  (e.g. via ToolHandle)
  // 3) Circular dependencies between tools
  //   a) release() is called in the tool::finalize() (e.g. via GaudiAlgorithm)
  //   b) release() is called in the tool destructor  (e.g. via ToolHandle)
  // 4) In addition to each of the above cases, refCounting of a particular tool
  //    might not have been done correctly in the code. Typically release()
  //    is not called, so we are left with a too high refCount.
  //    What to do with those, and how to avoid a crash while handling them...

  MsgStream log( msgSvc(), name() );
  ListTools finalizedTools; // list of tools that have been finalized
  log << MSG::INFO  << "Removing all tools created by ToolSvc" << endmsg;

  // Print out list of tools
  log << MSG::DEBUG << "  Tool List : ";
  for ( ListTools::const_iterator iTool = m_instancesTools.begin();
        iTool != m_instancesTools.end(); ++iTool ) {
    log << (*iTool)->name() << ":" << refCountTool( *iTool ) << " ";
  }
  log << endmsg;

  //
  // first pass: Finalize all tools (but don't delete them)
  //
  bool fail(false);
  size_t toolCount = m_instancesTools.size();
  unsigned long startRefCount = 0;
  unsigned long endRefCount = totalToolRefCount();
  unsigned long startMinRefCount = 0;
  unsigned long endMinRefCount = minimumToolRefCount();
  while ( toolCount > 0 &&
          endRefCount > 0 &&
          (endRefCount != startRefCount || endMinRefCount != startMinRefCount) ) {
    if ( endMinRefCount != startMinRefCount ) {
      log << MSG::DEBUG << toolCount << " tools left to finalize. Summed refCounts: "
          << endRefCount << endmsg;
      log << MSG::DEBUG << "Will finalize tools with refCount <= "
          << endMinRefCount << endmsg;
    }
    startMinRefCount = endMinRefCount;
    startRefCount = endRefCount;
    unsigned long maxLoop = toolCount + 1;
    while ( --maxLoop > 0 &&  m_instancesTools.size() > 0 ) {
      IAlgTool* pTool = m_instancesTools.back();
      // removing tool from list makes ToolSvc::releaseTool( IAlgTool* ) a noop
      m_instancesTools.pop_back();
      unsigned long count = refCountTool( pTool );
      // cache tool name
      std::string toolName = pTool->name();
      if ( count <= startMinRefCount ) {
        log << MSG::DEBUG << "  Performing finalization of " << toolName
            << " (refCount " << count << ")" << endmsg;
        // finalize of one tool may trigger a release of another tool
        //      pTool->sysFinalize().ignore();
        if (!finalizeTool(pTool).isSuccess()) fail = true;
        // postpone deletion
        finalizedTools.push_back(pTool);
      } else {
        // Place back in list to try again later
        // ToolSvc::releaseTool( IAlgTool* ) remains active for this tool
        log << MSG::DEBUG << "  Delaying   finalization of " << toolName
            << " (refCount " << count << ")" << endmsg;
        m_instancesTools.push_front(pTool);
      }
    } // end of inner loop
    toolCount = m_instancesTools.size();
    endRefCount = totalToolRefCount();
    endMinRefCount = minimumToolRefCount();
  }; // end of outer loop

  //
  // Second pass: Delete all finalized tools
  //
  // Delete in the order of increasing number of refCounts.
  // Loop over tools in the same order as the order in which they were finalized.
  // All tools in the list of finalized tools are no longer in the instancesTools list.
  // If a tool destructor calls releaseTool() on another tool, this will have no
  // effect on the 'other tool' if this 'other tool' is in the list of finalized tools.
  // If this 'other tool' is still in the instancesTools list, it may trigger finalization
  // (in releaseTool()), deletion and removal from the instancesTools list.
  // Therefore, the check on non-finalised tools should happen *after* the deletion
  // of the finalized tools.
  log << MSG::DEBUG << "Deleting " << finalizedTools.size() << " finalized tools" << endmsg;
  unsigned long maxLoop = totalToolRefCount( finalizedTools ) + 1;
  while ( --maxLoop > 0 && finalizedTools.size() > 0 ) {
    IAlgTool* pTool = finalizedTools.front();
    finalizedTools.pop_front();
    unsigned long count = refCountTool( pTool );
    if ( count == 1 ) {
      log << MSG::DEBUG << "  Performing deletion of " << pTool->name() << endmsg;
    } else {
      log << MSG::VERBOSE << "  Delaying   deletion of " << pTool->name()
          << " (refCount " << count << ")" << endmsg;
      // Put it back at the end of the list if refCount still not zero
      finalizedTools.push_back(pTool);
    }
    // do a forced release
    pTool->release();
  }

  // Error if by now not all tools are properly finalised
  if ( !m_instancesTools.empty() ) {
    log << MSG::ERROR << "Unable to finalize and delete the following tools : ";
    for ( ListTools::const_iterator iTool = m_instancesTools.begin();
          iTool != m_instancesTools.end(); ++iTool ) {
      log << (*iTool)->name() << ": " << refCountTool( *iTool ) << " ";
    }
    log << endmsg;
  }

  // by now, all tools should be deleted and removed.
  if ( finalizedTools.size() > 0 ) {
    log << MSG::ERROR << "Failed to delete the following " <<  finalizedTools.size()
        << " finalized tools. Bug in ToolSvc::finalize()?: ";
    for ( ListTools::const_iterator iTool = finalizedTools.begin();
          iTool != finalizedTools.end(); ++iTool ) {
      log << (*iTool)->name() << ": " << refCountTool( *iTool ) << " ";
    }
    log << endmsg;
  }

  if ( 0 != m_pHistorySvc ) {
    m_pHistorySvc->release();
  }

  // Finalize this specific service
  if (! Service::finalize().isSuccess() || fail) {
    return StatusCode::FAILURE;
  } else {
    return StatusCode::SUCCESS;
  }


}

StatusCode ToolSvc::start

(

)

[virtual]

Reimplemented from Service.

Definition at line 758 of file ToolSvc.cpp.

{

  MsgStream log( msgSvc(), name() );
  log << MSG::DEBUG << "START transition for AlgTools" << endmsg;

  bool fail(false);
  for ( ListTools::const_iterator iTool = m_instancesTools.begin();
        iTool != m_instancesTools.end(); ++iTool ) {
    log << MSG::VERBOSE << (*iTool)->name() << "::start()" << endmsg;

    if (!(*iTool)->sysStart().isSuccess()) {
      fail = true;
      log << MSG::ERROR << (*iTool)->name() << " failed to start()" << endmsg;
    }

  }

  if (fail) {
    log << MSG::ERROR << "One or more AlgTools failed to start()" << endmsg;
    return StatusCode::FAILURE;
  } else {
    return StatusCode::SUCCESS;
  }

}

StatusCode ToolSvc::stop

(

)

[virtual]

Reimplemented from Service.

Definition at line 788 of file ToolSvc.cpp.

{

  MsgStream log( msgSvc(), name() );
  log << MSG::DEBUG << "STOP transition for AlgTools" << endmsg;

  bool fail(false);
  for ( ListTools::const_iterator iTool = m_instancesTools.begin();
        iTool != m_instancesTools.end(); ++iTool ) {
    log << MSG::VERBOSE << (*iTool)->name() << "::stop()" << endmsg;

    if (!(*iTool)->sysStop().isSuccess()) {
      fail = true;
      log << MSG::ERROR << (*iTool)->name() << " failed to stop()" << endmsg;
    }

  }

  if (fail) {
    log << MSG::ERROR << "One or more AlgTools failed to stop()" << endmsg;
    return StatusCode::FAILURE;
  } else {
    return StatusCode::SUCCESS;
  }

}

StatusCode ToolSvc::retrieve	(	const std::string &	type,
		const InterfaceID &	iid,
		IAlgTool *&	tool,
		const IInterface *	parent,
		bool	createIf
	)			[virtual]

Retrieve tool, create it by default as common tool if it does not already exist.

Implements IToolSvc.

Definition at line 247 of file ToolSvc.cpp.

{

  // protect against empty type
  if ( tooltype.empty() ) {
    MsgStream log( msgSvc(), name() );
    log << MSG::ERROR << "retrieve(): No Tool Type/Name given" << endmsg;
    return StatusCode::FAILURE;
  }

  {
    // check for tools, which by name is required to be public:
    const std::string::size_type pos = tooltype.find ( s_PUBLIC ) ;
    if ( std::string::npos != pos )
    {
      // set parent for PUBLIC tool
      parent = this ;
      return retrieve ( std::string( tooltype , 0 , pos ) ,
                        iid , tool , parent , createIf ) ;
    }
  }

  const std::string::size_type pos = tooltype.find('/');
  if( std::string::npos == pos )
  { return retrieve ( tooltype , tooltype , iid , tool , parent , createIf );}
  const std::string newtype ( tooltype ,       0 , pos               ) ;
  const std::string newname ( tooltype , pos + 1 , std::string::npos ) ;
  return retrieve ( newtype , newname , iid , tool , parent , createIf ) ;
}

StatusCode ToolSvc::retrieve	(	const std::string &	tooltype,
		const std::string &	toolname,
		const InterfaceID &	iid,
		IAlgTool *&	tool,
		const IInterface *	parent,
		bool	createIf
	)			[virtual]

Retrieve tool, create it by default as common tool if it does not already exist.

invoke retrieve callbacks...

Implements IToolSvc.

Definition at line 285 of file ToolSvc.cpp.

{
  MsgStream log( msgSvc(), name() );

  // check the applicability of another method:
  // ignore the provided name if it is empty or the type contains a name
  if( toolname.empty() || (std::string::npos != tooltype.find('/')) )
  { return retrieve ( tooltype , iid , tool , parent , createIf ) ; }

  {
    // check for tools, which by name is required to be public:
    const std::string::size_type pos = toolname.find ( s_PUBLIC ) ;
    if ( std::string::npos != pos )
    {
      // set parent for PUBLIC tool
      parent = this ;
      return retrieve ( tooltype , std::string( toolname , 0 , pos ) ,
                        iid , tool , parent , createIf ) ;
    }
  }

  IAlgTool* itool = 0;
  StatusCode sc(StatusCode::FAILURE);

  tool = 0;

  // If parent is not specified it means it is the ToolSvc itself
  if( 0 == parent ) {
    parent = this;
  }
  const std::string fullname = nameTool( toolname, parent );

  // Find tool in list of those already existing, and tell its
  // interface that it has been used one more time
  ListTools::const_iterator it;
  for( it = m_instancesTools.begin(); it != m_instancesTools.end(); ++it ) {
    if( (*it)->name() == fullname ) {
      log << MSG::DEBUG << "Retrieved tool " << toolname << endmsg;
      itool = *it;
      break;
    }
  }

  if ( 0 == itool ) {
    // Instances of this tool do not exist, create an instance if desired
    // otherwise return failure
    if( !createIf ) {
      log << MSG::WARNING << "Tool " << toolname
          << " not found and creation not requested" << endmsg;
      return sc;
    }
    else {
      sc = create( tooltype, toolname, parent, itool );
      if ( sc.isFailure() ) { return sc; }
    }
  }

  // Get the right interface of it
  sc = itool->queryInterface( iid, (void**)&tool);
  if( sc.isFailure() ) {
    log << MSG::ERROR << "Tool " << toolname
        << " either does not implement the correct interface, or its version is incompatible"
        << endmsg;
    return sc;
  }
  if (!m_observers.empty()) {
     std::for_each( m_observers.begin(),
                    m_observers.end(),
                    bl::bind(&IToolSvc::Observer::onRetrieve,
                             bl::_1,
                             itool));
  }

  return sc;
}

std::vector< std::string > ToolSvc::getInstances

(

const std::string &

toolType

)

[virtual]

Get names of all tool instances of a given type.

Implements IToolSvc.

Definition at line 370 of file ToolSvc.cpp.

{

  std::vector<std::string> tools;

  ListTools::const_iterator it;
  for (it = m_instancesTools.begin(); it != m_instancesTools.end(); ++it) {
    if ((*it)->type() == toolType) {
      tools.push_back( (*it)->name() );
    }
  }

  return tools;

}

StatusCode ToolSvc::releaseTool

(

IAlgTool *

tool

)

[virtual]

Release tool.

Implements IToolSvc.

Definition at line 387 of file ToolSvc.cpp.

{
  StatusCode sc(StatusCode::SUCCESS);
  // test if tool is in known list (protect trying to access a previously deleted tool)
  if ( m_instancesTools.rend() != std::find( m_instancesTools.rbegin(),
                                              m_instancesTools.rend(),
                                              tool ) ) {
    unsigned long count = refCountTool(tool);
    if ( count == 1 ) {
      MsgStream log( msgSvc(), name() );
      // finalize the tool

      if ( Gaudi::StateMachine::OFFLINE == m_targetState ) {
        // We are being called during ToolSvc::finalize()
        // message format matches the one in ToolSvc::finalize()
        log << MSG::DEBUG << "  Performing finalization of " << tool->name()
            << " (refCount " << count << ")" << endmsg;
        // message format matches the one in ToolSvc::finalize()
        log << MSG::DEBUG << "  Performing     deletion of " << tool->name() << endmsg;
      } else {
        log << MSG::DEBUG << "Performing finalization and deletion of " << tool->name() << endmsg;
      }
      sc = finalizeTool(tool);
      // remove from known tools...
      m_instancesTools.remove(tool);
    }
    tool->release();
  }

  return sc;
}

StatusCode ToolSvc::create	(	const std::string &	type,
		const IInterface *	parent,
		IAlgTool *&	tool
	)

Create Tool standard way with automatically assigned name.

Definition at line 421 of file ToolSvc.cpp.

{
  const std::string & toolname = tooltype;
  return create( tooltype, toolname, parent, tool);
}

StatusCode ToolSvc::create	(	const std::string &	type,
		const std::string &	name,
		const IInterface *	parent,
		IAlgTool *&	tool
	)

Create Tool standard way with specified name.

invoke create callbacks...

Definition at line 480 of file ToolSvc.cpp.

{
  MsgStream log( msgSvc(), name() );
  // protect against empty type
  if ( tooltype.empty() ) {
    log << MSG::ERROR << "create(): No Tool Type given" << endmsg;
    return StatusCode::FAILURE;
  }

  // If parent has not been specified, assume it is the ToolSvc
  if ( 0 == parent ) parent = this;

  tool = 0;
  // Automatically deletes the tool if not explicitly kept (i.e. on success).
  // The tool is removed from the list of known tools too.
  ToolCreateGuard toolguard(m_instancesTools);

  // Check if the tool already exist : this should never happen
  const std::string fullname = nameTool(toolname, parent);
  if( existsTool( fullname ) ) {
    log << MSG::ERROR << "Tool " << fullname << " already exists" << endmsg;
    return StatusCode::FAILURE;
  }
  // instantiate the tool using the factory
  try {
    toolguard = PluginService::Create<IAlgTool*>(tooltype, tooltype, fullname, parent);
    if ( ! toolguard.get() ){
       log << MSG::ERROR
           << "Cannot create tool " << tooltype << " (No factory found)" << endmsg;
       return StatusCode::FAILURE;
    }
  }
  catch ( const GaudiException& Exception )  {
    // (1) perform the printout of message
    log << MSG::FATAL << "Exception with tag=" << Exception.tag()
        << " is caught whilst instantiating tool '" << tooltype << "'" << endmsg;
    // (2) print  the exception itself
    // (NB!  - GaudiException is a linked list of all "previous exceptions")
    log << MSG::FATAL << Exception  << endmsg;
    return StatusCode::FAILURE;
  }
  catch( const std::exception& Exception ) {
    // (1) perform the printout of message
    log << MSG::FATAL
        << "Standard std::exception is caught whilst instantiating tool '"
          << tooltype << "'" << endmsg;
    // (2) print  the exception itself
    // (NB!  - GaudiException is a linked list of all "previous exceptions")
    log << MSG::FATAL << Exception.what()  << endmsg;
    return StatusCode::FAILURE;
  }
  catch(...) {
    // (1) perform the printout
    log << MSG::FATAL << "UNKNOWN Exception is caught whilst instantiating tool '"
        << tooltype << "'" << endmsg;
    return StatusCode::FAILURE;
  }
  log << MSG::VERBOSE << "Created tool " << tooltype << "/" << fullname << endmsg;

  // Since only AlgTool has the setProperties() method it is necessary to cast
  // to downcast IAlgTool to AlgTool in order to set the properties via the JobOptions
  // service
  AlgTool* mytool = dynamic_cast<AlgTool*> (toolguard.get());
  if ( mytool != 0 ) {
    StatusCode sc = mytool->setProperties();
    if ( sc.isFailure() ) {
      log << MSG::ERROR << "Error setting properties for tool '"
          << fullname << "'" << endmsg;
      return sc;
    }
  }

  // Initialize the Tool
  StatusCode sc (StatusCode::FAILURE,true);
  try { sc = toolguard->sysInitialize(); }

  // Catch any exceptions
  catch ( const GaudiException & Exception )
    {
      log << MSG::ERROR
          << "GaudiException with tag=" << Exception.tag()
          << " caught whilst initializing tool '" << fullname << "'" << endmsg
          << Exception << endmsg;
      return StatusCode::FAILURE;
    }
  catch( const std::exception & Exception )
    {
      log << MSG::ERROR
          << "Standard std::exception caught whilst initializing tool '"
          << fullname << "'" << endmsg << Exception.what() << endmsg;
      return StatusCode::FAILURE;
    }
  catch (...)
    {
      log << MSG::ERROR
          << "UNKNOWN Exception caught whilst initializing tool '"
          << fullname << "'" << endmsg;
      return StatusCode::FAILURE;
    }

  // Status of tool initialization
  if ( sc.isFailure() ) {
    log << MSG::ERROR << "Error initializing tool '" << fullname << "'" << endmsg;
    return sc;
  }

  // Start the tool if we are running.
  if (m_state == Gaudi::StateMachine::RUNNING) {
    sc = toolguard->sysStart();

    if (sc.isFailure()) {
      log << MSG::ERROR << "Error starting tool '" << fullname << "'" << endmsg;
      return sc;
    }
  }


  // The tool has been successfully created and initialized,
  // so we the guard can be released
  tool = toolguard.release();

  if (!m_observers.empty()) {
      std::for_each( m_observers.begin(),
                     m_observers.end(),
                     bl::bind(&IToolSvc::Observer::onCreate,
                              bl::_1,
                              tool));
  }
  // TODO: replace by generic callback
  // Register the tool with the HistorySvc
  if (m_pHistorySvc != 0 ||
      service("HistorySvc",m_pHistorySvc,false).isSuccess() ) {
    m_pHistorySvc->registerAlgTool(*tool).ignore();
  }

  return StatusCode::SUCCESS;

}

bool ToolSvc::existsTool

(

const std::string &

toolname

)

const

Check if the tool instance exists.

Definition at line 656 of file ToolSvc.cpp.

{
  for ( ListTools::const_iterator it = m_instancesTools.begin();
        it != m_instancesTools.end(); ++it ) {
    if ( (*it)->name() == fullname ) { return true; }
  }
  return false;
}

std::string ToolSvc::nameTool	(	const std::string &	nameByUser,
		const IInterface *	parent
	)

Get Tool full name by combining nameByUser and "parent" part.

Definition at line 627 of file ToolSvc.cpp.

{

  std::string fullname = "";
  if ( parent == 0 ) { return this->name() + "." + toolname; }    // RETURN


  IInterface* cparent = const_cast<IInterface*>( parent ) ;
  // check that parent has a name!
  INamedInterface* _p = 0 ;
  StatusCode sc = cparent->queryInterface( INamedInterface::interfaceID() , pp_cast<void>(&_p) ) ;
  if ( sc.isSuccess() )
  {
    fullname = _p->name() + "." + toolname ;
    _p->release() ;
    return fullname ;                                          // RETURN
  }

  MsgStream log ( msgSvc(), name() );
  log << MSG::ERROR
      << "Private Tools only allowed for components implementing INamedInterface"
      << endmsg;
  //
  return "." + toolname ;
}

unsigned long ToolSvc::refCountTool

(

IAlgTool *

tool

)

const [inline]

Get current refcount for tool.

Definition at line 73 of file ToolSvc.h.

{ return tool->refCount(); }

void ToolSvc::registerObserver

(

IToolSvc::Observer *

obs

)

[virtual]

Implements IToolSvc.

Definition at line 744 of file ToolSvc.cpp.

                                                    {
  if ( 0 == obs )
    throw GaudiException( "Received NULL pointer", this->name() + "::registerObserver", StatusCode::FAILURE );
  m_observers.push_back(obs);
}

void ToolSvc::unRegisterObserver

(

IToolSvc::Observer *

obs

)

[virtual]

Implements IToolSvc.

Definition at line 750 of file ToolSvc.cpp.

                                                      {
  std::vector<IToolSvc::Observer*>::iterator i =
    find(m_observers.begin(),m_observers.end(),obs);
  if (i!=m_observers.end()) m_observers.erase(i);
}

unsigned long ToolSvc::totalToolRefCount

(

)

const [private]

The total number of refCounts on all tools in the instancesTools list.

Definition at line 722 of file ToolSvc.cpp.

{
  return totalToolRefCount( m_instancesTools );
}

unsigned long ToolSvc::totalToolRefCount

(

const ListTools &

toolList

)

const [private]

The total number of refCounts on all tools in the list.

Definition at line 710 of file ToolSvc.cpp.

{
  unsigned long count = 0;
  for ( ListTools::const_iterator iTool = toolList.begin();
        iTool != toolList.end(); ++iTool ) {
    count += refCountTool( *iTool );
  }
  return count;
}

unsigned long ToolSvc::minimumToolRefCount

(

)

const [private]

The minimum number of refCounts of all tools.

Definition at line 728 of file ToolSvc.cpp.

{
  unsigned long count = 0;
  if ( m_instancesTools.size() > 0 ) {
    ListTools::const_iterator iTool = m_instancesTools.begin();
    // start with first
    count = refCountTool( *iTool );
    // then compare the others
    for( ++iTool; iTool != m_instancesTools.end(); ++iTool ) {
      count = std::min( count, refCountTool( *iTool ) );
    }
  }
  return count;
}

StatusCode ToolSvc::finalizeTool

(

IAlgTool *

itool

)

const [private]

Finalize the given tool, with exception handling.

Definition at line 667 of file ToolSvc.cpp.

{

  // Cache tool name in case of errors
  const std::string toolName = itool->name();
  StatusCode sc;

  // Finalise the tool inside a try block
  try { sc = itool->sysFinalize(); }

  // Catch any exceptions
  catch ( const GaudiException & Exception )
  {
    MsgStream msg ( msgSvc(), name() );
    msg << MSG::ERROR
        << "GaudiException with tag=" << Exception.tag()
        << " caught whilst finalizing tool '" << toolName << "'" << endmsg
        << Exception << endmsg;
    sc = StatusCode::FAILURE;
  }
  catch( const std::exception & Exception )
  {
    MsgStream msg ( msgSvc(), name() );
    msg << MSG::ERROR
        << "Standard std::exception caught whilst finalizing tool '"
        << toolName << "'" << endmsg << Exception.what() << endmsg;
    sc = StatusCode::FAILURE;
  }
  catch (...)
  {
    MsgStream msg ( msgSvc(), name() );
    msg << MSG::ERROR
        << "UNKNOWN Exception caught whilst finalizing tool '"
        << toolName << "'" << endmsg;
    sc = StatusCode::FAILURE;
  }

  return sc;

}

---

Member Data Documentation

ListTools ToolSvc::m_instancesTools [private]

Common Tools.

Definition at line 105 of file ToolSvc.h.

IHistorySvc* ToolSvc::m_pHistorySvc [private]

Pointer to HistorySvc.

Definition at line 108 of file ToolSvc.h.

std::vector<IToolSvc::Observer*> ToolSvc::m_observers [private]

Definition at line 110 of file ToolSvc.h.

---

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

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r11/GaudiSvc/src/ToolSvc/ToolSvc.h
• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r11/GaudiSvc/src/ToolSvc/ToolSvc.cpp