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/*******************************************************************************
* libmodman - A library for extending applications
* Copyright (C) 2009 Nathaniel McCallum <nathaniel@natemccallum.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#ifndef MODULE_MANAGER_HPP_
#define MODULE_MANAGER_HPP_
#include <algorithm>
#include <map>
#include <set>
#include <string>
#include <vector>
#include <cassert>
#include "module.hpp"
namespace libmodman {
using namespace std;
class __MM_DLL_EXPORT module_manager {
public:
~module_manager();
bool load_builtin(mm_module *mod);
bool load_file(const string &filename, bool symbreq=true);
bool load_dir(const string &dirname, bool symbreq=true);
template <class T> vector<T*> get_extensions() const {
struct pcmp {
static bool cmp(T* x, T* y) { return *x < *y; }
};
map<string, vector<base_extension*> >::const_iterator it = this->extensions.find(T::base_type());
vector<T*> retlist;
if (it != this->extensions.end()) {
vector<base_extension*> extlist = it->second;
for (size_t i=0 ; i < extlist.size() ; i++) {
T* obj = dynamic_cast<T*>(extlist[i]);
if (obj)
retlist.push_back(obj);
else
assert (obj != NULL);
}
sort(retlist.begin(), retlist.end(), &pcmp::cmp);
}
return retlist;
}
template <class T> bool register_type() {
if (T::singleton()) {
if (!this->singletons.insert(T::base_type()).second)
return false;
}
else
this->singletons.erase(T::base_type());
this->extensions[T::base_type()];
return true;
}
private:
set<void*> modules;
set<string> singletons;
map<string, vector<base_extension*> > extensions;
};
}
#endif /* MODULE_MANAGER_HPP_ */
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