/ray/src/lib/module/sharedobject.h

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/*
 * lib/module/sharedobject.h
 * 
 * Implementing shared objects loadable at runtime (.so, .dll, ...)
 * 
 * Copyright (c) 2004 by Wolfgang Wieser ] wwieser (a) gmx <*> de [ 
 * 
 * This file may be distributed and/or modified under the terms of the 
 * GNU General Public License version 2 as published by the Free Software 
 * Foundation. (See COPYING.GPL for details.)
 * 
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 * 
 */

#ifndef _LIB_MODULE_SHAREDOBJECT_H_
#define _LIB_MODULE_SHAREDOBJECT_H_ 1

#include <lib/sconfig.h>    /* MUST be first */
#include <lib/tl/refnode.h>
#include <lib/tl/linkedlist.h>

#include <gmodule/gmodule.h>

class _ISharedObject_Namespace
{
    public:
        enum Flags
        {
            BindLazy = G_MODULE_BIND_LAZY,
            BindLocal = G_MODULE_BIND_LOCAL,
        };
};


// As defined in pool.h: 
class ModulePool;
// As defined in symbol.h: 
class ModuleSymbol;


class _ISharedObject : 
    public _ISharedObject_Namespace,
    private LinkedListBase<_ISharedObject>,   // <-- List held by ModulePool. 
    public InternalRefNodeBase_ThreadSave
{
    friend class LinkedList<_ISharedObject>;
    friend class ModulePool;
    private:
        GModule *module;     
        const char *mname;    
        
        _ISharedObject(const _ISharedObject &);
        void operator=(const _ISharedObject &);
        _ISharedObject(GModule *m,const char *name);
    public:
        ~_ISharedObject();
        
        inline const char *error() const
            {  return(module ? NULL : mname);  }  // <-- CORRECT!!!
        
        inline const char *name() const
            {  return(module ? mname : NULL);  }
        
        ModuleSymbol lookup(const char *symbol);
};


typedef RefNode<_ISharedObject,_ISharedObject_Namespace> SharedObject;

#endif  /* _LIB_MODULE_SHAREDOBJECT_H_ */

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