Gaudi::PluginService::v1::Details Namespace Reference

Classes
class	Factory
	Class providing default factory functions. More...
class	Registry
	In-memory database of the loaded factories. More...
class	Logger
	Simple logging class, just to provide a default implementation. More...

Functions
GAUDIPS_API void *	getCreator (const std::string &id, const std::string &type)
	Function used to load a specific factory function.
template<typename F>
F	getCreator (const std::string &id)
	Convoluted implementation of getCreator with an embedded reinterpret_cast, used to avoid the warning.
GAUDIPS_API std::string	demangle (const std::type_info &id)
	Return a canonical name for type_info object (implementation borrowed from GaudiKernel/System).
template<typename T>
std::string	demangle ()
	Return a canonical name for the template argument.
GAUDIPS_API Logger &	logger ()
	Return the current logger instance.
GAUDIPS_API void	setLogger (Logger *logger)
	Set the logger instance to use.
std::string	demangle (const std::string &id)

Function Documentation

demangle() [1/3]

template<typename T>

std::string Gaudi::PluginService::v1::Details::demangle ( )

inline

Return a canonical name for the template argument.

Definition at line 78 of file PluginServiceDetailsV1.h.

                                    {
          return demangle( typeid( T ) );
        }

demangle() [2/3]

std::string Gaudi::PluginService::v1::Details::demangle

(

const std::string &

id

)

Definition at line 119 of file PluginServiceV1.cpp.

                                                  {
          int  status;
          auto realname = std::unique_ptr<char, decltype( free )*>(
              abi::__cxa_demangle( id.c_str(), nullptr, nullptr, &status ), free );
          if ( !realname ) return id;
          return std::regex_replace(
              realname.get(),
              std::regex{ "std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >( (?=>))?" },
              "std::string" );
        }

demangle() [3/3]

std::string Gaudi::PluginService::v1::Details::demangle

(

const std::type_info &

id

)

Return a canonical name for type_info object (implementation borrowed from GaudiKernel/System).

Definition at line 129 of file PluginServiceV1.cpp.

{ return demangle( id.name() ); }

getCreator() [1/2]

template<typename F>

F Gaudi::PluginService::v1::Details::getCreator ( const std::string & id )

inline

Convoluted implementation of getCreator with an embedded reinterpret_cast, used to avoid the warning.

warning: ISO C++ forbids casting between pointer-to-function and pointer-to-object

It is an ugly trick but works.
See:

• http://www.trilithium.com/johan/2004/12/problem-with-dlsym/
• http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#573
• http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#195

Definition at line 62 of file PluginServiceDetailsV1.h.

                                                   {
          union {
            void* src;
            F     dst;
          } p2p;
          p2p.src = getCreator( id, typeid( F ).name() );
          return p2p.dst;
        }

getCreator() [2/2]

void * Gaudi::PluginService::v1::Details::getCreator	(	const std::string &	id,
		const std::string &	type )

Function used to load a specific factory function.

Returns

the pointer to the factory function.

Definition at line 115 of file PluginServiceV1.cpp.

                                                                       {
          return Registry::instance().get( id, type );
        }

logger()

Logger & Gaudi::PluginService::v1::Details::logger

(

)

Return the current logger instance.

Definition at line 293 of file PluginServiceV1.cpp.

{ return *s_logger; }

setLogger()

void Gaudi::PluginService::v1::Details::setLogger

(

Logger *

logger

)

Set the logger instance to use.

It must be a new instance and the ownership is passed to the function.

Definition at line 294 of file PluginServiceV1.cpp.

{ s_logger.reset( logger ); }