mirror of
https://github.com/KingDuckZ/incredis
synced 2025-05-06 09:03:38 +00:00
173 lines
7.2 KiB
C++
173 lines
7.2 KiB
C++
/* Copyright 2016, Michele Santullo
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* This file is part of "incredis".
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*
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* "incredis" 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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* "incredis" 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 "incredis". If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef id3C772A92AB0E440DA84DAFD807BC962D
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#define id3C772A92AB0E440DA84DAFD807BC962D
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#include "batch.hpp"
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#include "duckhandy/sequence_bt.hpp"
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#include <boost/utility/string_ref.hpp>
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#include <boost/lexical_cast.hpp>
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#include <type_traits>
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namespace redis {
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class IncRedisBatch {
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public:
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enum ZADD_Mode {
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ZADD_XX_UpdateOnly,
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ZADD_NX_AlwaysAdd,
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ZADD_None
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};
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IncRedisBatch ( void ) = delete;
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IncRedisBatch ( IncRedisBatch&& ) = default;
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IncRedisBatch ( const Batch& ) = delete;
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IncRedisBatch ( Batch&& parBatch );
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void reset ( void );
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void throw_if_failed ( void );
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const std::vector<Reply>& replies ( void ) { return m_batch.replies(); }
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Batch& batch ( void ) { return m_batch; }
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const Batch& batch ( void ) const { return m_batch; }
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//Misc
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IncRedisBatch& select ( int parIndex );
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IncRedisBatch& client_setname ( boost::string_ref parName );
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template <typename... Args>
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IncRedisBatch& del ( Args&&... parArgs );
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//Hash
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IncRedisBatch& hget ( boost::string_ref parKey, boost::string_ref parField );
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template <typename... Args>
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IncRedisBatch& hmget ( boost::string_ref parKey, Args&&... parArgs );
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template <typename... Args>
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IncRedisBatch& hmset ( boost::string_ref parKey, Args&&... parArgs );
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IncRedisBatch& hincrby ( boost::string_ref parKey, boost::string_ref parField, int parInc );
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//Set
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IncRedisBatch& srandmember ( boost::string_ref parKey, int parCount );
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IncRedisBatch& srandmember ( boost::string_ref parKey );
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template <typename... Args>
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IncRedisBatch& sadd ( boost::string_ref parKey, Args&&... parArgs );
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//Sorted set
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template <typename... Args>
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IncRedisBatch& zadd ( boost::string_ref parKey, ZADD_Mode parMode, bool parChange, Args&&... parArgs );
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IncRedisBatch& zrangebyscore ( boost::string_ref parKey, double parMin, bool parMinIncl, double parMax, bool parMaxIncl, bool parWithScores );
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//Script
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IncRedisBatch& script_flush ( void );
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private:
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Batch m_batch;
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};
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namespace implem {
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template <std::size_t... I, typename... Args>
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void run_conv_floats_to_strings ( Batch& parBatch, dhandy::bt::index_seq<I...>, Args&&... parArgs );
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} //namespace implem
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template <typename... Args>
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IncRedisBatch& IncRedisBatch::hmget (boost::string_ref parKey, Args&&... parArgs) {
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static_assert(sizeof...(Args) > 0, "No fields specified");
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m_batch.run("HMGET", parKey, std::forward<Args>(parArgs)...);
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return *this;
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}
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template <typename... Args>
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IncRedisBatch& IncRedisBatch::hmset (boost::string_ref parKey, Args&&... parArgs) {
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static_assert(sizeof...(Args) >= 1, "No parameters specified");
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static_assert(sizeof...(Args) % 2 == 0, "Uneven number of parameters received");
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m_batch.run("HMSET", parKey, std::forward<Args>(parArgs)...);
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return *this;
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}
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template <typename... Args>
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IncRedisBatch& IncRedisBatch::sadd (boost::string_ref parKey, Args&&... parArgs) {
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static_assert(sizeof...(Args) > 0, "No members specified");
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m_batch.run("SADD", parKey, std::forward<Args>(parArgs)...);
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return *this;
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}
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template <typename... Args>
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IncRedisBatch& IncRedisBatch::del (Args&&... parArgs) {
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static_assert(sizeof...(Args) > 0, "No keys specified");
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m_batch.run("DEL", std::forward<Args>(parArgs)...);
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return *this;
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}
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template <typename... Args>
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IncRedisBatch& IncRedisBatch::zadd (boost::string_ref parKey, ZADD_Mode parMode, bool parChange, Args&&... parArgs) {
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static_assert(sizeof...(Args) >= 1, "No score/value pairs specified");
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static_assert(sizeof...(Args) % 2 == 0, "Uneven number of parameters received");
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using dhandy::bt::index_range;
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if (parChange) {
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if (ZADD_None == parMode)
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implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, "CH", std::forward<Args>(parArgs)...);
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else if (ZADD_NX_AlwaysAdd == parMode)
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implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, "NX", "CH", std::forward<Args>(parArgs)...);
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else if (ZADD_XX_UpdateOnly == parMode)
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implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, "XX", "CH", std::forward<Args>(parArgs)...);
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}
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else {
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if (ZADD_None == parMode)
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implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, std::forward<Args>(parArgs)...);
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else if (ZADD_NX_AlwaysAdd == parMode)
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implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, "NX", std::forward<Args>(parArgs)...);
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else if (ZADD_XX_UpdateOnly == parMode)
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implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, "XX", std::forward<Args>(parArgs)...);
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}
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return *this;
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}
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namespace implem {
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template <std::size_t IGNORE_COUNT, std::size_t IDX, typename T, bool STRINGIZE=(IDX>=IGNORE_COUNT) && ((IDX-IGNORE_COUNT)%2)==0>
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struct stringize_or_forward_impl {
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typedef T type;
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static T&& do_it ( T&& parT ) { return std::forward<T>(parT); }
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};
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template <std::size_t IGNORE_COUNT, std::size_t IDX, typename T>
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struct stringize_or_forward_impl<IGNORE_COUNT, IDX, T, true> {
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static_assert(std::is_floating_point<T>::value, "Scores must be given as floating point values");
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typedef std::string type;
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static std::string do_it ( T parT ) { return boost::lexical_cast<std::string>(parT); }
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};
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template <std::size_t IGNORE_COUNT, std::size_t IDX, typename T>
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auto stringize_or_forward (T&& parValue) -> typename stringize_or_forward_impl<IGNORE_COUNT, IDX, T>::type {
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return stringize_or_forward_impl<IGNORE_COUNT, IDX, T>::do_it(std::forward<T>(parValue));
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}
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template <std::size_t PreArgsCount, std::size_t... I, typename... Args>
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void run_conv_floats_to_strings_impl (Batch& parBatch, dhandy::bt::index_seq<I...>, Args&&... parArgs) {
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static_assert(sizeof...(I) == sizeof...(Args), "Wrong number of indices");
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static_assert(PreArgsCount <= sizeof...(I), "Can't ignore more arguments than those that were received");
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parBatch.run(stringize_or_forward<PreArgsCount, I>(std::forward<Args>(parArgs))...);
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}
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template <std::size_t... I, typename... Args>
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void run_conv_floats_to_strings (Batch& parBatch, dhandy::bt::index_seq<I...>, Args&&... parArgs) {
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static_assert(sizeof...(Args) >= sizeof...(I), "Unexpected count, there should be at least as many argument as there are indices");
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constexpr const auto pre_args_count = sizeof...(Args) - sizeof...(I);
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run_conv_floats_to_strings_impl<pre_args_count>(parBatch, dhandy::bt::index_range<0, sizeof...(Args)>(), std::forward<Args>(parArgs)...);
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};
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} //namespace implem
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} //namespace redis
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#endif
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