DynamicLoader.h

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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4; -*-
// vim: set shiftwidth=4 softtabstop=4 expandtab:
/*
 ********************************************************************
 ** NIDAS: NCAR In-situ Data Acquistion Software
 **
 ** 2004, Copyright University Corporation for Atmospheric Research
 **
 ** This program is free software; you can redistribute it and/or modify
 ** it under the terms of the GNU 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.
 **
 ** The LICENSE.txt file accompanying this software contains
 ** a copy of the GNU General Public License. If it is not found,
 ** write to the Free Software Foundation, Inc.,
 ** 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 **
 ********************************************************************
*/
 
#ifndef NIDAS_CORE_DYNAMIC_LOADER_H
#define NIDAS_CORE_DYNAMIC_LOADER_H
 
#include <nidas/util/ThreadSupport.h>
#include <nidas/util/Exception.h>
 
#include <map>
 
namespace nidas { namespace core {
 
class DynamicLoader {
 
public:
 
    static DynamicLoader* getInstance();
 
    void *lookup(const std::string& name);
 
    void *lookup(const std::string& library, const std::string& name);
 
private:
    DynamicLoader();
 
    DynamicLoader(const DynamicLoader&);
 
    DynamicLoader& operator=(const DynamicLoader&);
 
    ~DynamicLoader();
 
    void*  _defhandle;
 
    std::map<std::string,void*>  _libhandles;
 
    static DynamicLoader* _instance;
 
    static nidas::util::Mutex _instanceLock;
 
};
 
}}  // namespace nidas namespace core
 
#endif