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https://github.com/KingDuckZ/dindexer.git
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King_DuckZ
8c03ba15bc
Newer versions of gcc have a small string optimizations that makes moving FileRecordData objects behave incorrectly. When a small string is moved, string_refs into it become invalid. Making a path on the fly using the path() method also has the side effect of making FileRecordData smaller in size.
121 lines
3.4 KiB
C++
121 lines
3.4 KiB
C++
/* Copyright 2015, 2016, Michele Santullo
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* This file is part of "dindexer".
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*
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* "dindexer" 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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* "dindexer" 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 "dindexer". If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef id3CD7F105AC314540A864487E981E5A7E
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#define id3CD7F105AC314540A864487E981E5A7E
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#include "tiger.hpp"
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#include <string>
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#include <boost/utility/string_ref.hpp>
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#include <cstdint>
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#include <ctime>
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#include <boost/flyweight.hpp>
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#include <boost/flyweight/no_locking.hpp>
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namespace mchlib {
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struct FileRecordData {
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struct MimeStringTagStruct { };
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typedef boost::flyweights::tag<MimeStringTagStruct> MimeStringTag;
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typedef boost::flyweight<std::string, boost::flyweights::no_locking, MimeStringTag> mime_string;
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FileRecordData ( void ) = default;
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FileRecordData ( const char* parPath, std::time_t parATime, std::time_t parMTime, uint64_t parLevel, bool parIsDir, bool parIsSymLink ) :
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hash {},
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abs_path(parPath),
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mime_full(),
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atime(parATime),
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mtime(parMTime),
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mime_type(),
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mime_charset(),
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size(0),
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level(parLevel),
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path_offset(0),
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is_directory(parIsDir),
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is_symlink(parIsSymLink),
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unreadable(false),
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hash_valid(false)
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{
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}
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FileRecordData ( std::string&& parPath, uint16_t parRelPathOffs, std::time_t parATime, std::time_t parMTime, uint16_t parLevel, bool parIsDir, bool parIsSymLink ) :
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hash {},
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abs_path(std::move(parPath)),
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mime_full(),
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atime(parATime),
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mtime(parMTime),
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mime_type(),
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mime_charset(),
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size(0),
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level(parLevel),
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path_offset(parRelPathOffs),
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is_directory(parIsDir),
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is_symlink(parIsSymLink),
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unreadable(false),
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hash_valid(false)
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{
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assert(path_offset <= abs_path.size());
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}
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#if defined(NDEBUG)
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FileRecordData ( const FileRecordData& ) = delete;
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#else
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FileRecordData ( const FileRecordData& ) = default;
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#endif
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FileRecordData ( FileRecordData&& ) = default;
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FileRecordData& operator= ( const FileRecordData& ) = delete;
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FileRecordData& operator= ( FileRecordData&& ) = default;
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#if !defined(NDEBUG)
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bool operator== ( const FileRecordData& parOther ) const;
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#endif
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boost::string_ref path ( void ) const { return boost::string_ref(abs_path).substr(path_offset); }
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TigerHash hash;
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std::string abs_path;
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mime_string mime_full;
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std::time_t atime;
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std::time_t mtime;
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boost::string_ref mime_type;
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boost::string_ref mime_charset;
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uint64_t size;
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uint16_t level;
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uint16_t path_offset; //Relative path starting character into abs_path
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bool is_directory;
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bool is_symlink;
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bool unreadable;
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bool hash_valid;
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};
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struct SetRecordData {
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boost::string_ref name;
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char type;
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char content_type;
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};
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struct SetRecordDataFull : public SetRecordData {
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std::string name;
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uint32_t disk_number;
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};
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#if !defined(NDEBUG)
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inline bool FileRecordData::operator== (const FileRecordData& parOther) const {
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return (this->abs_path == parOther.abs_path);
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}
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#endif
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} //namespace mchlib
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#endif
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