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/***************************************************************************
Copyright (C) 2005 Christoph Reichenbach <reichenb@colorado.edu>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public Licence as
published by the Free Software Foundaton; either version 2 of the
Licence, or (at your option) any later version.
It is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
merchantibility or fitness for a particular purpose. See the
GNU General Public Licence for more details.
You should have received a copy of the GNU General Public Licence
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
***************************************************************************/
#ifndef GC_H_
#define GC_H_
#include "common/hashmap.h"
#include "sci/include/vm_types.h"
#include "sci/include/engine.h"
struct reg_t_EqualTo {
bool operator()(const reg_t& x, const reg_t& y) const {
return (x.segment == y.segment) && (x.offset == y.offset);
}
};
struct reg_t_Hash {
uint operator()(const reg_t& x) const {
return (x.segment << 3) | x.offset;
}
};
// The reg_t_hash_map is actually really a hashset
typedef Common::HashMap<reg_t, bool, reg_t_Hash, reg_t_EqualTo> reg_t_hash_map;
reg_t_hash_map *
find_all_used_references(state_t *s);
/* Finds all used references and normalises them to their memory addresses
** Parameters: (state_t *) s: The state to gather all information from
** Returns : (reg_t_hash_map *) A hash map containing entries for all used references
*/
void
run_gc(state_t *s);
/* Runs garbage collection on the current system state
** Parameters: (state_t *) s: The state in which we should gc
*/
#endif /* !defined(GC_H_) */
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