Thread safe extension to the standard MessageSvc. More...

#include <MessageSvc/InertMessageSvc.h>

Inheritance diagram for InertMessageSvc:

[legend]

Collaboration diagram for InertMessageSvc:

[legend]

Public Member Functions
StatusCode	initialize () override
	Initialization of the service. More...

StatusCode	finalize () override
	Finalization of the service. More...

void	reportMessage (const Message &msg) override
	Implementation of IMessageSvc::reportMessage() More...

void	reportMessage (const Message &msg, int outputLevel) override
	Implementation of IMessageSvc::reportMessage() More...

void	reportMessage (const StatusCode &code, const std::string &source="") override
	Implementation of IMessageSvc::reportMessage() More...

Public Member Functions inherited from MessageSvc
	MessageSvc (const std::string &name, ISvcLocator *svcloc)

StatusCode	reinitialize () override
	Reinitialize Service. More...

StatusCode	initialize () override
	Initialize Service. More...

StatusCode	finalize () override
	Finalize Service. More...

void	reportMessage (const Message &message) override

void	reportMessage (const Message &msg, int outputLevel) override

void	reportMessage (const StatusCode &code, const std::string &source="") override

void	reportMessage (const char source, int type, const char message) override

void	reportMessage (const std::string &source, int type, const std::string &message) override

void	insertMessage (const StatusCode &code, const Message &message) override

void	eraseMessage () override

void	eraseMessage (const StatusCode &code) override

void	eraseMessage (const StatusCode &code, const Message &message) override

void	insertStream (int message_type, const std::string &name, std::ostream *stream) override

void	eraseStream () override

void	eraseStream (int message_type) override

void	eraseStream (int message_type, std::ostream *stream) override

void	eraseStream (std::ostream *stream) override

std::ostream *	defaultStream () const override

void	setDefaultStream (std::ostream *stream) override

int	outputLevel () const override

int	outputLevel (const std::string &source) const override

void	setOutputLevel (int new_level) override

void	setOutputLevel (const std::string &source, int new_level) override

bool	useColor () const override

std::string	getLogColor (int logLevel) const override

int	messageCount (MSG::Level logLevel) const override

void	incrInactiveCount (MSG::Level level, const std::string &src) override

Public Member Functions inherited from extends< Service, IMessageSvc, IInactiveMessageCounter >
void *	i_cast (const InterfaceID &tid) const override
	Implementation of IInterface::i_cast. More...

StatusCode	queryInterface (const InterfaceID &ti, void **pp) override
	Implementation of IInterface::queryInterface. More...

std::vector< std::string >	getInterfaceNames () const override
	Implementation of IInterface::getInterfaceNames. More...

Public Member Functions inherited from Service
const std::string &	name () const override
	Retrieve name of the service. More...

StatusCode	configure () override

StatusCode	initialize () override

StatusCode	start () override

StatusCode	stop () override

StatusCode	finalize () override

StatusCode	terminate () override

Gaudi::StateMachine::State	FSMState () const override

Gaudi::StateMachine::State	targetFSMState () const override

StatusCode	reinitialize () override

StatusCode	restart () override

StatusCode	sysInitialize () override
	Initialize Service. More...

StatusCode	sysStart () override
	Initialize Service. More...

StatusCode	sysStop () override
	Initialize Service. More...

StatusCode	sysFinalize () override
	Finalize Service. More...

StatusCode	sysReinitialize () override
	Re-initialize the Service. More...

StatusCode	sysRestart () override
	Re-initialize the Service. More...

	Service (std::string name, ISvcLocator *svcloc)
	Standard Constructor. More...

SmartIF< ISvcLocator > &	serviceLocator () const override
	Retrieve pointer to service locator. More...

StatusCode	setProperties ()
	Method for setting declared properties to the values specified for the job. More...

template<class T >
StatusCode	service (const std::string &name, const T *&psvc, bool createIf=true) const
	Access a service by name, creating it if it doesn't already exist. More...

template<class T >
StatusCode	service (const std::string &name, T *&psvc, bool createIf=true) const

template<typename IFace = IService>
SmartIF< IFace >	service (const std::string &name, bool createIf=true) const

template<class T >
StatusCode	service (const std::string &svcType, const std::string &svcName, T *&psvc) const
	Access a service by name and type, creating it if it doesn't already exist. More...

template<class T >
StatusCode	declareTool (ToolHandle< T > &handle, std::string toolTypeAndName, bool createIf=true)
	Declare used tool. More...

SmartIF< IAuditorSvc > &	auditorSvc () const
	The standard auditor service.May not be invoked before sysInitialize() has been invoked. More...

Public Member Functions inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
	PropertyHolder ()=default

Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Details::PropertyBase &prop)
	Declare a property. More...

Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, TYPE &value, const std::string &doc="none")
	Helper to wrap a regular data member and use it as a regular property. More...

Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, Gaudi::Property< TYPE, VERIFIER, HANDLERS > &prop, const std::string &doc="none")
	Declare a PropertyBase instance setting name and documentation. More...

Gaudi::Details::PropertyBase *	declareRemoteProperty (const std::string &name, IProperty *rsvc, const std::string &rname="")
	Declare a remote property. More...

StatusCode	setProperty (const Gaudi::Details::PropertyBase &p) override
	set the property form another property More...

StatusCode	setProperty (const std::string &s) override
	set the property from the formatted string More...

StatusCode	setProperty (const std::string &n, const std::string &v) override
	set the property from name and the value More...

StatusCode	setProperty (const std::string &name, const TYPE &value)
	set the property form the value More...

StatusCode	getProperty (Gaudi::Details::PropertyBase *p) const override
	get the property More...

const Gaudi::Details::PropertyBase &	getProperty (const std::string &name) const override
	get the property by name More...

StatusCode	getProperty (const std::string &n, std::string &v) const override
	convert the property to the string More...

const std::vector< Gaudi::Details::PropertyBase * > &	getProperties () const override
	get all properties More...

bool	hasProperty (const std::string &name) const override
	Return true if we have a property with the given name. More...

	PropertyHolder (const PropertyHolder &)=delete

PropertyHolder &	operator= (const PropertyHolder &)=delete

Public Member Functions inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
MSG::Level	msgLevel () const
	get the cached level (originally extracted from the embedded MsgStream) More...

bool	msgLevel (MSG::Level lvl) const
	get the output level from the embedded MsgStream More...

MSG::Level	outputLevel () const
	Backward compatibility function for getting the output level. More...

Public Member Functions inherited from CommonMessagingBase
virtual	~CommonMessagingBase ()=default
	Virtual destructor. More...

const SmartIF< IMessageSvc > &	msgSvc () const
	The standard message service. More...

MsgStream &	msgStream () const
	Return an uninitialized MsgStream. More...

MsgStream &	msgStream (const MSG::Level level) const
	Predefined configurable message stream for the efficient printouts. More...

MsgStream &	always () const
	shortcut for the method msgStream(MSG::ALWAYS) More...

MsgStream &	fatal () const
	shortcut for the method msgStream(MSG::FATAL) More...

MsgStream &	err () const
	shortcut for the method msgStream(MSG::ERROR) More...

MsgStream &	error () const
	shortcut for the method msgStream(MSG::ERROR) More...

MsgStream &	warning () const
	shortcut for the method msgStream(MSG::WARNING) More...

MsgStream &	info () const
	shortcut for the method msgStream(MSG::INFO) More...

MsgStream &	debug () const
	shortcut for the method msgStream(MSG::DEBUG) More...

MsgStream &	verbose () const
	shortcut for the method msgStream(MSG::VERBOSE) More...

MsgStream &	msg () const
	shortcut for the method msgStream(MSG::INFO) More...

Private Member Functions
void	m_activate ()

void	m_deactivate ()

Private Attributes
bool	m_isActive = false

tbb::concurrent_bounded_queue< std::function< void()> >	m_messageActionsQueue

std::thread	m_thread

Additional Inherited Members
Public Types inherited from MessageSvc
typedef std::pair< std::string, std::ostream * >	NamedStream

typedef std::multimap< int, NamedStream >	StreamMap

typedef std::multimap< StatusCode, Message >	MessageMap

typedef std::map< std::string, int >	ThresholdMap

Public Types inherited from extends< Service, IMessageSvc, IInactiveMessageCounter >
using	base_class = extends
	Typedef to this class. More...

using	extend_interfaces_base = extend_interfaces< Interfaces... >
	Typedef to the base of this class. More...

Public Types inherited from Service
using	Factory = Gaudi::PluginService::Factory< IService (const std::string &, ISvcLocator )>

Public Types inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
using	PropertyHolderImpl = PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
	Typedef used to refer to this class from derived classes, as in. More...

Public Types inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
using	base_class = CommonMessaging

Public Types inherited from extend_interfaces< Interfaces... >
using	ext_iids = typename Gaudi::interface_list_cat< typename Interfaces::ext_iids... >::type
	take union of the ext_iids of all Interfaces... More...

Protected Member Functions inherited from MessageSvc
virtual void	i_reportMessage (const Message &msg, int outputLevel)
	Internal implementation of reportMessage(const Message&,int) without lock. More...

virtual void	i_reportMessage (const StatusCode &code, const std::string &source)
	Internal implementation of reportMessage(const StatusCode&,const std::string&) without lock. More...

Protected Member Functions inherited from Service
	~Service () override
	Standard Destructor. More...

int	outputLevel () const
	get the `Service's` output level More...

Protected Member Functions inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
Gaudi::Details::PropertyBase *	property (const std::string &name) const

Protected Member Functions inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
MSG::Level	setUpMessaging () const
	Set up local caches. More...

MSG::Level	resetMessaging ()
	Reinitialize internal states. More...

void	updateMsgStreamOutputLevel (int level)
	Update the output level of the cached MsgStream. More...

Protected Attributes inherited from Service
Gaudi::StateMachine::State	m_state = Gaudi::StateMachine::OFFLINE
	Service state. More...

Gaudi::StateMachine::State	m_targetState = Gaudi::StateMachine::OFFLINE
	Service state. More...

Gaudi::Property< int >	m_outputLevel {this, "OutputLevel", MSG::NIL, "output level"}

Gaudi::Property< bool >	m_auditInit {this, "AuditServices", false, "[[deprecated]] unused"}

Gaudi::Property< bool >	m_auditorInitialize {this, "AuditInitialize", false, "trigger auditor on initialize()"}

Gaudi::Property< bool >	m_auditorStart {this, "AuditStart", false, "trigger auditor on start()"}

Gaudi::Property< bool >	m_auditorStop {this, "AuditStop", false, "trigger auditor on stop()"}

Gaudi::Property< bool >	m_auditorFinalize {this, "AuditFinalize", false, "trigger auditor on finalize()"}

Gaudi::Property< bool >	m_auditorReinitialize {this, "AuditReinitialize", false, "trigger auditor on reinitialize()"}

Gaudi::Property< bool >	m_auditorRestart {this, "AuditRestart", false, "trigger auditor on restart()"}

SmartIF< IAuditorSvc >	m_pAuditorSvc
	Auditor Service. More...

Detailed Description

Thread safe extension to the standard MessageSvc.

The InertMessageSvc runs in a separate thread sleeping until the arrival of a message to print out therefore using a very limited amount of resources. The most important part of its implementation is the presence of a TBB concurrent bounded queue which not only allows to serialise the received messages in order to print them but also to put the thread where the service is located to sleep when the queue is empty.

Author: Danilo Piparo

Date: 12/02/2013

Definition at line 26 of file InertMessageSvc.h.

Member Function Documentation

StatusCode InertMessageSvc::finalize ( )

override

Finalization of the service.

StatusCode InertMessageSvc::initialize ( )

override

Initialization of the service.

Definition at line 14 of file InertMessageSvc.cpp.

 {
   StatusCode sc = MessageSvc::initialize(); // must be executed first
   if ( sc.isFailure() ) return sc;          // error printed already by MessageSvc
 
   info() << "Activating in a separate thread" << endmsg;
   m_thread = std::thread( &InertMessageSvc::m_activate, this );
 
   return StatusCode::SUCCESS;
 }

void InertMessageSvc::m_activate ( )

private

Definition at line 36 of file InertMessageSvc.cpp.

 {
   m_isActive = true;
   std::function<void()> thisMessageAction;
   while ( m_isActive || !m_messageActionsQueue.empty() ) {
     m_messageActionsQueue.pop( thisMessageAction );
     if ( thisMessageAction ) thisMessageAction();
   }
 }

void InertMessageSvc::m_deactivate ( )

private

Definition at line 48 of file InertMessageSvc.cpp.

 {
   if ( m_isActive ) {
 // This would be the last action
 #if defined( __clang__ ) || defined( __CLING__ )
     m_messageActionsQueue.push( [this]() { m_isActive = false; } );
 #else
     m_messageActionsQueue.emplace( [this]() { m_isActive = false; } );
 #endif
   }
 }

void InertMessageSvc::reportMessage ( const Message & msg )

override

Implementation of IMessageSvc::reportMessage()

Definition at line 81 of file InertMessageSvc.cpp.

 {
 // msg has to be copied as the reference may become invalid by the time it's used
 #if defined( __clang__ ) || defined( __CLING__ )
   m_messageActionsQueue.push(
       [ this, m = Message( msg ) ]() { this->i_reportMessage( m, this->outputLevel( m.getSource() ) ); } );
 #else
   m_messageActionsQueue.emplace(
       [ this, m = Message( msg ) ]() { this->i_reportMessage( m, this->outputLevel( m.getSource() ) ); } );
 #endif
 }

void InertMessageSvc::reportMessage	(	const Message &	msg,
		int	outputLevel
	)

override

Implementation of IMessageSvc::reportMessage()

The message action is created and pushed to the message queue.

The message is captured by value since the one referenced by msg can (and basically always will given the asynchronous nature of the printing) go out of scope before the differed print.

Definition at line 67 of file InertMessageSvc.cpp.

 {
 // msg has to be copied as the reference may become invalid by the time it is used
 #if defined( __clang__ ) || defined( __CLING__ )
   m_messageActionsQueue.push(
       [ this, m = Message( msg ), outputLevel ]() { this->i_reportMessage( m, outputLevel ); } );
 #else
   m_messageActionsQueue.emplace(
       [ this, m = Message( msg ), outputLevel ]() { this->i_reportMessage( m, outputLevel ); } );
 #endif
 }

void InertMessageSvc::reportMessage	(	const StatusCode &	code,
		const std::string &	source = `""`
	)

override

Implementation of IMessageSvc::reportMessage()

Definition at line 95 of file InertMessageSvc.cpp.

 {
 // msg has to be copied as the source may become invalid by the time it's used
 #if defined( __clang__ ) || defined( __CLING__ )
   m_messageActionsQueue.push( [ this, code, s = std::string( source ) ]() { this->i_reportMessage( code, s ); } );
 #else
   m_messageActionsQueue.emplace( [ this, code, s = std::string( source ) ]() { this->i_reportMessage( code, s ); } );
 #endif
 }

Member Data Documentation

bool InertMessageSvc::m_isActive = false

private

Definition at line 52 of file InertMessageSvc.h.

tbb::concurrent_bounded_queue<std::function<void()> > InertMessageSvc::m_messageActionsQueue

private

Definition at line 54 of file InertMessageSvc.h.

std::thread InertMessageSvc::m_thread

private

Definition at line 56 of file InertMessageSvc.h.

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

GaudiCoreSvc/src/MessageSvc/InertMessageSvc.h
GaudiCoreSvc/src/MessageSvc/InertMessageSvc.cpp

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

Member Data Documentation