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64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef SCI_ENGINE_GC_H
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#define SCI_ENGINE_GC_H
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#include "common/hashmap.h"
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#include "sci/engine/vm_types.h"
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#include "sci/engine/state.h"
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namespace Sci {
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struct reg_t_Hash {
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uint operator()(const reg_t& x) const {
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return (x.segment << 3) ^ x.offset ^ (x.offset << 16);
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}
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};
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/*
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* The AddrSet is a "set" of reg_t values.
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* We don't have a HashSet type, so we abuse a HashMap for this.
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*/
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typedef Common::HashMap<reg_t, bool, reg_t_Hash> AddrSet;
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/**
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* Finds all used references and normalises them to their memory addresses
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* @param s The state to gather all information from
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* @return A hash map containing entries for all used references
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*/
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AddrSet *findAllActiveReferences(EngineState *s);
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/**
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* Runs garbage collection on the current system state
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* @param s The state in which we should gc
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*/
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void run_gc(EngineState *s);
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} // End of namespace Sci
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#endif // SCI_ENGINE_GC_H
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