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/*
Copyright (C) 1999 John W. Eaton
This file is part of Octave.
Octave 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, or (at your option) any
later version.
Octave 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.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
#if !defined (octave_shlib_h)
#define octave_shlib_h 1
#include <string>
#include "oct-time.h"
// This just provides a way to avoid infinite recursion when building
// octave_shlib objects.
class
octave_xshlib
{
public:
octave_xshlib (void) { }
};
class
octave_shlib
{
public:
typedef std::string (*name_mangler) (const std::string&);
typedef void (*close_hook) (const std::string&);
octave_shlib (void) : rep (make_shlib ()) { }
octave_shlib (const std::string& f, bool warn_future)
: rep (make_shlib ())
{
open (f, warn_future);
}
virtual ~octave_shlib (void)
{
if (rep && --rep->count == 0)
{
delete rep;
rep = 0;
}
}
octave_shlib (const octave_shlib& sl)
{
rep = sl.rep;
rep->count++;
}
octave_shlib& operator = (const octave_shlib& sl)
{
if (rep != sl.rep)
{
if (--rep->count == 0)
delete rep;
rep = sl.rep;
rep->count++;
}
return *this;
}
bool operator == (const octave_shlib& sl) const
{ return (rep == sl.rep); }
operator bool () const { return is_open (); }
virtual void open (const std::string& f, bool warn_future = false)
{ rep->open (f, warn_future); }
virtual void *search (const std::string& nm, name_mangler mangler = 0)
{ return rep->search (nm, mangler); }
virtual void close (close_hook cl_hook = 0)
{ rep->close (cl_hook); }
virtual bool remove (const std::string& fcn_name)
{ return rep->remove (fcn_name); }
virtual bool is_out_of_date (void) const
{ return rep->is_out_of_date (); }
virtual int number_of_functions_loaded (void) const
{ return rep->number_of_functions_loaded (); }
virtual std::string file_name (void) const
{ return rep->file_name (); }
virtual octave_time time_loaded (void) const
{ return rep->time_loaded (); }
protected:
octave_shlib (const octave_xshlib&) : rep (0) { }
virtual bool is_open (void) const { return rep->is_open (); }
static octave_shlib *make_shlib (void);
union
{
octave_shlib *rep;
int count;
};
};
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/
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