1
0
Fork 0
mirror of https://github.com/KingDuckZ/dindexer.git synced 2025-07-02 14:04:22 +00:00
dindexer/src/backends/redis/arg_to_bin_safe.hpp

80 lines
2.3 KiB
C++

/* Copyright 2015, 2016, Michele Santullo
* This file is part of "dindexer".
*
* "dindexer" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "dindexer" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "dindexer". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef id9348909738B047B7B6912D73CB519039
#define id9348909738B047B7B6912D73CB519039
#include "helpers/compatibility.h"
#include <cstddef>
#include <boost/utility/string_ref.hpp>
#include <string>
namespace redis {
namespace implem {
template <typename T>
const char* arg_to_bin_safe_char ( const T& parArg );
template <typename T>
std::size_t arg_to_bin_safe_length ( const T& parArg ) a_pure;
template <typename T>
struct MakeCharInfo;
template<>
struct MakeCharInfo<std::string> {
MakeCharInfo ( const std::string& parData ) : m_string(parData) {}
const char* data ( void ) const { return m_string.data(); }
std::size_t size ( void ) const { return m_string.size(); }
private:
const std::string& m_string;
};
template<>
struct MakeCharInfo<boost::string_ref> {
MakeCharInfo ( const boost::string_ref& parData ) : m_data(parData.data()), m_size(parData.size()) {}
const char* data ( void ) const { return m_data; }
std::size_t size ( void ) const { return m_size; }
private:
const char* const m_data;
const std::size_t m_size;
};
template<>
struct MakeCharInfo<char> {
MakeCharInfo ( char parData ) : m_data(parData) {}
const char* data ( void ) const { return &m_data; }
std::size_t size ( void ) const { return 1; }
private:
const char m_data;
};
template <typename T>
inline const char* arg_to_bin_safe_char (const T& parArg) {
return MakeCharInfo<T>(parArg).data();
}
template <typename T>
inline std::size_t arg_to_bin_safe_length (const T& parArg) {
return MakeCharInfo<T>(parArg).size();
}
} //namespace implem
} //namespace redis
#endif