/*
* opencog/atoms/execution/LibraryManager.h
*
* Copyright (C) 2018 OpenCog Foundation
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License v3 as
* published by the Free Software Foundation and including the exceptions
* at http://opencog.org/wiki/Licenses
*
* 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 Affero General Public License
* along with this program; if not, write to:
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _OPENCOG_LIBRARAY_MANAGER_H
#define _OPENCOG_LIBRARAY_MANAGER_H
#include <opencog/atoms/base/Handle.h>
#include <opencog/atomspace/AtomSpace.h>
class LibraryManager
{
private:
static std::unordered_map<std::string, void*> _librarys;
static std::unordered_map<std::string, void*> _functions;
public:
static void* getFunc(std::string libName,std::string funcName);
static void setLocalFunc(std::string libName, std::string funcName, void* func);
/**
* Given a grounded schema name like "py: foo", extract
* 1. the language, like "py"
* 2. the library, like "" if there is none
* 3. the function, like "foo"
*/
static void parse_schema(const std::string& schema,
std::string& lang,
std::string& lib,
std::string& fun);
};
namespace opencog
{
/**
* setLocalSchema("foo", boo) enables creating GroundedSchemaNode with
* the name "lib:\\foo", which will call boo on execution of corresponding
* ExecutionOutputLink.
*
* Functions can return either Handle* (for Atoms) or ValuePtr* (for Values).
* ValuePtr* is more general and preferred for new code.
*/
void setLocalSchema(std::string funcName,
ValuePtr* (*func)(AtomSpace *, Handle*));
// Backward compatibility: Accept Handle*-returning functions
inline void setLocalSchema(std::string funcName,
Handle* (*func)(AtomSpace *, Handle*))
{
setLocalSchema(funcName, reinterpret_cast<ValuePtr* (*)(AtomSpace *, Handle*)>(func));
}
};
#endif //_OPENCOG_LIBRARAY_MANAGER_H