kopia lustrzana https://github.com/weetmuts/wmbusmeters
102 wiersze
2.7 KiB
C++
102 wiersze
2.7 KiB
C++
/*
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Copyright (C) 2021 Fredrik Öhrström
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(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, see <http://www.gnu.org/licenses/>.
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*/
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#include"translatebits.h"
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#include"util.h"
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#include<assert.h>
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using namespace Translate;
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using namespace std;
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void handleRule(Rule& rule, string &s, uint64_t bits)
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{
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// Keep only the masked bits.
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bits = bits & rule.mask;
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if (rule.type == Type::BitToString)
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{
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for (Map& m : rule.map)
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{
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if ((~rule.mask & m.from) != 0)
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{
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string tmp;
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strprintf(tmp, "BAD_RULE_%s(from=0x%x mask=0x%x)", rule.name.c_str(), m.from, rule.mask);
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s += tmp+" ";
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}
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uint64_t from = m.from & rule.mask; // Better safe than sorry.
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if ((bits & from) != 0)
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{
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s += m.to+" ";
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bits = bits & ~m.from; // Remove the handled bit.
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}
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}
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if (bits != 0)
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{
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// Oups, there are bits that we have not handled....
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string tmp;
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strprintf(tmp, "UNKNOWN_%s(0x%x)", rule.name.c_str(), bits);
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s += tmp+" ";
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}
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}
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else if (rule.type == Type::IndexToString)
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{
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bool found = false;
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for (Map& m : rule.map)
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{
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if ((~rule.mask & m.from) != 0)
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{
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string tmp;
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strprintf(tmp, "BAD_RULE_%s(from=0x%x mask=0x%x)", rule.name.c_str(), m.from, rule.mask);
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s += tmp+" ";
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}
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uint64_t from = m.from & rule.mask; // Better safe than sorry.
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if (bits == from)
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{
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s += m.to+" ";
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found = true;
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}
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}
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if (!found)
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{
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// Oups, this index has not been found.
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string tmp;
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strprintf(tmp, "UNKNOWN_%s(0x%x)", rule.name.c_str(), bits);
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s += tmp+" ";
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}
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}
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else
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{
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assert(0);
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}
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}
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string Lookup::translate(uint64_t bits)
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{
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string s = "";
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for (Rule& r : rules)
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{
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handleRule(r, s, bits);
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}
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while (s.back() == ' ') s.pop_back();
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return s;
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}
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Lookup NoLookup = {};
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