iverilog/vvp/vvp_vpi_callback.h

65 lines
2.0 KiB
C++

#ifndef IVL_vvp_vpi_callback_H
#define IVL_vvp_vpi_callback_H
/*
* Copyright (c) 2009-2014 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form 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 program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
# include "config.h"
# include "vpi_user.h"
class value_callback;
/*
* Things derived from vvp_vpi_callback may have callbacks
* attached. This is how vpi callbacks are attached to the vvp
* structure.
*
* Things derived from vvp_vpi_callback may also be array'ed, so it
* includes some members that arrays use.
*/
class vvp_vpi_callback {
public:
vvp_vpi_callback();
virtual ~vvp_vpi_callback();
void attach_as_word(struct __vpiArray* arr, unsigned long addr);
void add_vpi_callback(value_callback*);
#ifdef CHECK_WITH_VALGRIND
/* This has only been tested at EOS. */
void clear_all_callbacks(void);
#endif
// Derived classes implement this method to provide a way for
// vpi to get at the vvp value of the object.
virtual void get_value(struct t_vpi_value*value) =0;
protected:
// Derived classes call this method to indicate that it is
// time to call the callback.
void run_vpi_callbacks();
private:
value_callback*vpi_callbacks_;
struct __vpi_array_word*array_words_;
};
#endif /* IVL_vvp_vpi_callback_H */