mirror of
https://github.com/KingDuckZ/dindexer.git
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95 lines
3.3 KiB
C++
95 lines
3.3 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 idD83EEBFC927840C6B9F32D61A1D1E582
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#define idD83EEBFC927840C6B9F32D61A1D1E582
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#include "arg_to_bin_safe.hpp"
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#include "scan_iterator.hpp"
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#include "reply.hpp"
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#include <array>
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#include <memory>
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#include <string>
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#include <cstdint>
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#include <cstddef>
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#include <cassert>
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#include <vector>
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#include <utility>
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#include <boost/range/iterator_range_core.hpp>
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#include <boost/utility/string_ref.hpp>
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#include <stdexcept>
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struct redisContext;
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namespace redis {
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class Command {
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public:
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typedef ScanIterator<ScanSingleValues<std::string>> scan_iterator;
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typedef boost::iterator_range<scan_iterator> scan_range;
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typedef ScanIterator<ScanPairs<std::pair<std::string, std::string>, ScanCommands::HSCAN>> hscan_iterator;
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typedef boost::iterator_range<hscan_iterator> hscan_range;
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typedef ScanIterator<ScanSingleValuesInKey<std::string>> sscan_iterator;
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typedef boost::iterator_range<sscan_iterator> sscan_range;
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typedef ScanIterator<ScanPairs<std::pair<std::string, std::string>, ScanCommands::ZSCAN>> zscan_iterator;
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typedef boost::iterator_range<zscan_iterator> zscan_range;
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Command ( std::string&& parAddress, uint16_t parPort );
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~Command ( void ) noexcept;
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void connect ( void );
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void disconnect ( void );
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bool is_connected ( void ) const;
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template <typename... Args>
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Reply run ( const char* parCommand, Args&&... parArgs );
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//Single Redis command wrappers
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scan_range scan ( void );
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hscan_range hscan ( boost::string_ref parKey );
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sscan_range sscan ( boost::string_ref parKey );
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zscan_range zscan ( boost::string_ref parKey );
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private:
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using RedisConnection = std::unique_ptr<redisContext, void(*)(redisContext*)>;
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Reply run_pvt ( int parArgc, const char** parArgv, std::size_t* parLengths );
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RedisConnection m_conn;
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std::string m_address;
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uint16_t m_port;
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};
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template <typename... Args>
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Reply Command::run (const char* parCommand, Args&&... parArgs) {
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constexpr const std::size_t arg_count = sizeof...(Args) + 1;
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using CharPointerArray = std::array<const char*, arg_count>;
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using LengthArray = std::array<std::size_t, arg_count>;
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using implem::arg_to_bin_safe_char;
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using implem::arg_to_bin_safe_length;
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using implem::MakeCharInfo;
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using boost::string_ref;
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return this->run_pvt(
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static_cast<int>(arg_count),
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CharPointerArray{ (arg_to_bin_safe_char(string_ref(parCommand))), MakeCharInfo<typename std::remove_const<typename std::remove_reference<Args>::type>::type>(std::forward<Args>(parArgs)).data()... }.data(),
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LengthArray{ arg_to_bin_safe_length(string_ref(parCommand)), arg_to_bin_safe_length(std::forward<Args>(parArgs))... }.data()
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);
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}
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} //namespace redis
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#endif
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