Config.h

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/*
 *      Config and ConfigSet class interfaces
 *
 *      This file is part of OTAWA
 *      Copyright (c) 2014, IRIT UPS.
 *
 *      OTAWA 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 of the License, or
 *      (at your option) any later version.
 *
 *      OTAWA 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 OTAWA; if not, write to the Free Software
 *      Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef OTAWA_ETIME_CONFIG_H_
#define OTAWA_ETIME_CONFIG_H_

#include <elm/types.h>

namespace otawa { namespace etime {

using namespace elm;

class Config {
public:
        inline Config(void): b(0) { }
        inline Config(t::uint32 bits): b(bits) { }
        inline Config(const Config& conf): b(conf.b) { }
        inline t::uint32 bits(void) const { return b; }
        inline void set(int n) { b |= 1 << n; }
        inline void clear(int n) { b &= ~(1 << n); }
        inline bool bit(int n) const { return b & (1 << n); }
        string toString(int n) const;

private:
        t::uint32 b;
};


class ConfigSet {
public:
        ConfigSet(void): t(0) { }
        ConfigSet(ot::time time): t(time) { }
        ConfigSet(const ConfigSet& set): t(set.t), confs(set.confs) { }
        inline ot::time time(void) const { return t; }
        inline int count(void) const { return confs.length(); }
        inline void add(Config conf) { confs.add(conf); }
        inline void add(const ConfigSet& set) { t = max(t, set.time()); confs.addAll(set.confs); }

        inline void push(const ConfigSet& set) { t = max(t, set.time()); confs.addAll(set.confs); }
        inline void pop(const ConfigSet& set) { for(int i = 0; i < set.confs.length(); i++) confs.pop(); }

        t::uint32 posConst(void) const;
        t::uint32 negConst(void) const;
        t::uint32 unused(t::uint32 neg, t::uint32 pos, int n) const;
        t::uint32 complex(t::uint32 neg, t::uint32 pos, t::uint32 unused, int n) const;
        void scan(t::uint32& pos, t::uint32& neg, t::uint32& unus, t::uint32& comp, int n) const;
        bool isFeasible(int n);
        void dump(io::Output& out, int n);

        class Iter: public genstruct::Vector<Config>::Iterator {
        public:
                inline Iter(const ConfigSet& set): genstruct::Vector<Config>::Iterator(set.confs) { }
        };

private:
        ot::time t;
        genstruct::Vector<Config> confs;
};


} }             // otawa::etime

#endif /* OTAWA_ETIME_CONFIG_H_ */