dynalink.h

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/*
 * dynalink.h
 *
 * Dynamic Link Library abstraction class.
 *
 * Portable Windows Library
 *
 * Copyright (c) 1993-1998 Equivalence Pty. Ltd.
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is Portable Windows Library.
 *
 * The Initial Developer of the Original Code is Equivalence Pty. Ltd.
 *
 * Portions are Copyright (C) 1993 Free Software Foundation, Inc.
 * All Rights Reserved.
 *
 * Contributor(s): ______________________________________.
 *
 * $Revision: 24177 $
 * $Author: rjongbloed $
 * $Date: 2010-04-05 21:52:04 +1000 (Mon, 05 Apr 2010) $
 */

#ifndef PTLIB_DYNALINK_H
#define PTLIB_DYNALINK_H

#if !defined(P_RTEMS)

#ifdef P_USE_PRAGMA
#pragma interface
#endif

class PDynaLink : public PObject
{
  PCLASSINFO(PDynaLink, PObject);

  public:
    PDynaLink();
    PDynaLink(
      const PString & name    
    );

    ~PDynaLink();

    /* Open a new dyna-link, loading the specified module.

       @return
       true if the library was loaded.
     */
    virtual PBoolean Open(
      const PString & name    
    );

    virtual void Close();

    virtual PBoolean IsLoaded() const;

    virtual PString GetName(
      PBoolean full = false  
    ) const;

    static PString GetExtension();


    typedef void (*Function)();


    PBoolean GetFunction(
      PINDEX index,    
      Function & func  
    );

    PBoolean GetFunction(
      const PString & name,  
      Function & func        
    );

    const PString & GetLastError() const { return m_lastError; }

  protected:
    PString m_lastError;

// Include platform dependent part of class
#ifdef _WIN32
#include "msos/ptlib/dynalink.h"
#else
#include "unix/ptlib/dynalink.h"
#endif
};

#endif // !defined(P_RTEMS)


#endif //PTLIB_DYNALINK_H


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