[pclasses-cvs] pclasses2/include/pclasses/System Plugin.h,NONE,1.1

[Christian P. <cp...@us...>]

Update of /cvsroot/pclasses/pclasses2/include/pclasses/System
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv10123/include/pclasses/System

Added Files:
	Plugin.h 
Log Message:
- Added new PluginManager based on the new Factory code


--- NEW FILE: Plugin.h ---
/***************************************************************************
 *   Copyright (C) 2005 by Christian Prochnow                              *
 *   cp...@se...                                                   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU Library General Public License as       *
 *   published by the Free Software Foundation; either version 2 of the    *
 *   License, or (at your option) any later version.                       *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU Library General Public     *
 *   License along with this program; if not, write to the                 *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

// Based on the excellect Factory/Classloader code
// from stephan beal <st...@s1...>

#ifndef P_System_Plugin_h
#define P_System_Plugin_h

#include <pclasses/Export.h>
#include <pclasses/NonCopyable.h>
#include <pclasses/Unicode/String.h>
#include <pclasses/System/PathFinder.h>
#include <pclasses/System/SharedLib.h>

#include <map>
#include <string>
#include <typeinfo>

namespace P {

namespace System {

class PSYSTEM_EXPORT PluginManager: public NonCopyable {
	public:
		typedef std::map<Unicode::String, SharedLib*> PluginMap;
		typedef std::map<std::string, PathFinder>     PathFinderMap;

		void addPluginDir(const std::string& ifaceType,
			const Unicode::String& dir) throw(SystemError);

		template <class TypeName>
		void addPluginDir(const Unicode::String& dir)
			throw(SystemError)
		{
			addPluginDir(typeid(TypeName).name(), dir);
		}

		SharedLib* addPlugin(const std::string& ifaceType,
			const Unicode::String& soName) throw(SystemError);

		template <class TypeName>
		void addPlugin(const Unicode::String& soName)
			throw(SystemError)
		{
			addPlugin(typeid(TypeName).name(), soName);
		}

		static PluginManager& instance();

	private:
		PathFinder& pathFinder(const std::string& ifaceType);

		PluginManager();
		~PluginManager();

		PathFinderMap _pathFinders;
		PluginMap     _pluginMap;
};

} // !namespace System

} // !namespace P

//! Registers a type in the Factory on static initialization
/*!
	\param Iface Interface of the type to be registered
	\param type Type to register
*/
#define P_PLUGIN_REGISTER_TYPE(Iface, type) \
	void type##_Factory_init() { P_FACTORY_REGISTER_TYPE(Iface, type); } \
	int type##_Factory_init_placeholder = ( type##_Factory_init(), 0 );

#define P_PLUGIN_REGISTER_ALIAS(Iface, alias, type) \
	void type##_Factory_alias_init() { P_FACTORY_REGISTER_ALIAS(Iface, alias, type); } \
	int type##_Factory_alias_init_placeholder = ( type##_Factory_alias_init(), 0 );

#endif