75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
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/*
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* Copyright (C) 2022, KylinSoft Co., Ltd.
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*
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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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*
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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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*
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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 <https://www.gnu.org/licenses/>.
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*
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* Authors: jixiaoxu <jixiaoxu@kylinos.cn>
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*
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*/
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#ifndef PINYIN4cpp_DATATRIE_H
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#define PINYIN4cpp_DATATRIE_H
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <QDebug>
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#include "Md5.hpp"
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#include "LocalVector.hpp"
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#include "StringUtil.hpp"
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//#define USE_REDUCED_TRIE
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#include "../storage-base/cedar/cedar.h"
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#include "../storage-base/darts-clone/darts.h"
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using namespace std;
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using std::pair;
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struct CacheFileHeader { //todo 字节对齐
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char md5_hex[32] = {};
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uint32_t elements_num = 0;
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uint32_t elements_size = 0;
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uint32_t dat_size = 0;
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};
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class Pinyin4cppDataTrie {
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public:
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Pinyin4cppDataTrie();
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~Pinyin4cppDataTrie();
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string Find(const string & key) const;
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bool InitBuildDat(map<string, string>& elements, const string & dat_cache_file, const string & md5);
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bool InitAttachDat(const string & dat_cache_file, const string & md5);
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private:
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void BuildDatCache(map<string, string>& elements, const string & dat_cache_file, const string & md5);
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Pinyin4cppDataTrie(const Pinyin4cppDataTrie &);
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Pinyin4cppDataTrie &operator=(const Pinyin4cppDataTrie &);
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private:
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Darts::DoubleArray m_DoubleArrayDataTrie;
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//cedar::da<int, -1, -2, true> m_DoubleArrayDataTrie;
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const char * m_elementsPtr = nullptr;
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size_t m_elementsNum = 0;
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size_t m_elementsSize = 0;
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size_t m_mmapLength = 0;
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int m_mmapFd = -1;
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char * m_mmapAddr = nullptr;
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};
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#endif //PINYIN4cpp_DATATRIE_H
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