64ba7d5be8
Convert a number of destructors to default synthesized functions. Try to inline a few instances into the header. It should be possible to inline all of them, however, gcc seems to emit a number of warnings. Furthermore, some of the destructors are pure-virtualed, but provide an implementation. Placing the definition into the header causes ODR violations.
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
/* vim: set sw=4 sts=4 et foldmethod=syntax : */
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/*
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* Copyright (c) 2009 Piotr Jaroszyński
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*
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* This file is part of the Paludis package manager. Paludis is free software;
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* you can redistribute it and/or modify it under the terms of the GNU General
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* Public License version 2, as published by the Free Software Foundation.
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*
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* Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <paludis/repositories/e/memoised_hashes.hh>
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#include <paludis/util/pimp-impl.hh>
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#include <paludis/util/singleton-impl.hh>
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#include <paludis/util/safe_ifstream.hh>
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#include <paludis/util/digest_registry.hh>
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#include <paludis/util/timestamp.hh>
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#include <paludis/util/fs_path.hh>
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#include <paludis/util/fs_stat.hh>
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#include <map>
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using namespace paludis;
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using namespace paludis::erepository;
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namespace paludis
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{
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typedef std::map<std::pair<std::string, std::string>, std::pair<Timestamp, std::string> > HashesMap;
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template <>
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struct Imp<MemoisedHashes>
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{
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mutable std::mutex mutex;
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mutable HashesMap hashes;
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Imp()
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{
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}
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};
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}
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MemoisedHashes::MemoisedHashes() :
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_imp()
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{
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}
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MemoisedHashes::~MemoisedHashes() = default;
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const std::string
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MemoisedHashes::get(const std::string & algo, const FSPath & file, SafeIFStream & stream) const
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{
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std::pair<std::string, std::string> key(stringify(file), algo);
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Timestamp mtime(file.stat().mtim());
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std::unique_lock<std::mutex> lock(_imp->mutex);
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HashesMap::iterator i(_imp->hashes.find(key));
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if (i == _imp->hashes.end() || i->second.first != mtime)
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{
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std::pair<Timestamp, std::string> value(std::make_pair(mtime, DigestRegistry::get_instance()->get(algo)(stream)));
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stream.clear();
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stream.seekg(0, std::ios::beg);
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if (i != _imp->hashes.end())
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i->second = value;
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else
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i = _imp->hashes.insert(std::make_pair(key, value)).first;
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}
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return i->second.second;
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}
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namespace paludis
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{
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template class Pimp<MemoisedHashes>;
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template class Singleton<MemoisedHashes>;
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}
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