dynamic_loader.h

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#ifndef DYNAMIC_LIBRARY_LOADER_CLASS
#define DYNAMIC_LIBRARY_LOADER_CLASS

/*****************************************************************************\
*                                                                             *
*  Name   : dynamic_library_loader                                            *
*  Author : Chris Koeritz                                                     *
*                                                                             *
*******************************************************************************
* Copyright (c) 1998-$now By Author.  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 is online at:      *
*     http://www.fsf.org/copyleft/gpl.html                                    *
* Please send any updates to: fred@gruntose.com                               *
\*****************************************************************************/


#include "opsysdll.h"

namespace library_plugins {

  // forward.
  class virtual_library;
  class vl_data_pack;

  class OPSYSTEM_CLASS_STYLE dynamic_library_loader
  { 
  public:
    dynamic_library_loader(const istring &dll_name, bool load_it = true);

    virtual ~dynamic_library_loader();

    bool load_the_library();

    bool loaded() const;

    const istring &dll_name() const;  

    virtual_library *create(vl_data_pack &parameters);

    virtual void *load_library(const char *to_load);

    virtual void free_library(void *to_free);

    typedef void shared_method();

    static shared_method *load_method(void *handle, const char *method_name);

  private:
    istring *_dll_name;  
    void *_dll_handle;  

    // not used.
    dynamic_library_loader(dynamic_library_loader &);
    dynamic_library_loader &operator =(dynamic_library_loader &);
  };

} // namespace.

#endif // outer guard.

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