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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 1996-2021 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// 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 3 of the License, 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, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////
#if ! defined (octave_ov_mex_fcn_h)
#define octave_ov_mex_fcn_h 1
#include "octave-config.h"
#include <string>
#include "oct-shlib.h"
#include "ov-fcn.h"
#include "ov-builtin.h"
#include "ov-typeinfo.h"
class octave_value;
class octave_value_list;
namespace octave
{
class tree_evaluator;
}
// Dynamically-linked functions.
class
octave_mex_function : public octave_function
{
public:
octave_mex_function (void)
: m_mex_fcn_ptr (), m_exit_fcn_ptr (), m_is_fmex (), m_sh_lib (),
m_time_checked (), m_is_system_fcn_file () { }
octave_mex_function (void *fptr, bool fmex,
const octave::dynamic_library& shl,
const std::string& nm = "");
// No copying!
octave_mex_function (const octave_mex_function& fn) = delete;
octave_mex_function& operator = (const octave_mex_function& fn) = delete;
~octave_mex_function (void);
octave_function * function_value (bool = false) { return this; }
const octave_function * function_value (bool = false) const { return this; }
void mark_fcn_file_up_to_date (const octave::sys::time& t)
{
m_time_checked = t;
}
std::string fcn_file_name (void) const;
octave::sys::time time_parsed (void) const;
octave::sys::time time_checked (void) const { return m_time_checked; }
bool is_system_fcn_file (void) const { return m_is_system_fcn_file; }
bool is_builtin_function (void) const { return false; }
bool is_mex_function (void) const { return true; }
octave_value_list
execute (octave::tree_evaluator& tw, int nargout = 0,
const octave_value_list& args = octave_value_list ());
void atexit (void (*fcn) (void)) { m_exit_fcn_ptr = fcn; }
octave::dynamic_library get_shlib (void) const { return m_sh_lib; }
void *mex_fcn_ptr (void) const { return m_mex_fcn_ptr; }
bool is_fmex (void) const { return m_is_fmex; }
private:
void *m_mex_fcn_ptr;
void (*m_exit_fcn_ptr) (void);
bool m_is_fmex;
octave::dynamic_library m_sh_lib;
// The time the file was last checked to see if it needs to be
// parsed again.
mutable octave::sys::time m_time_checked;
// True if this function came from a file that is considered to be a
// system function. This affects whether we check the time stamp
// on the file to see if it has changed.
bool m_is_system_fcn_file;
DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA
};
#endif
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