mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-16 10:49:05 +00:00
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
|
#ifndef SPROUT_UUID_SHA1_NAME_GENERATOR_HPP
|
||
|
|
#define SPROUT_UUID_SHA1_NAME_GENERATOR_HPP
|
||
|
|
|
||
|
|
#include <sprout/config.hpp>
|
||
|
|
#include <sprout/string.hpp>
|
||
|
|
#include <sprout/uuid/uuid.hpp>
|
||
|
|
#include <sprout/checksum/sha1.hpp>
|
||
|
|
|
||
|
|
namespace sprout {
|
||
|
|
namespace uuids {
|
||
|
|
//
|
||
|
|
// sha1_name_generator
|
||
|
|
//
|
||
|
|
class sha1_name_generator {
|
||
|
|
public:
|
||
|
|
typedef sprout::uuids::uuid result_type;
|
||
|
|
private:
|
||
|
|
typedef typename result_type::value_type value_type;
|
||
|
|
private:
|
||
|
|
sprout::sha1 sum_;
|
||
|
|
private:
|
||
|
|
SPROUT_CONSTEXPR result_type sha_to_uuid_1(sprout::sha1::value_type const& value) const {
|
||
|
|
return result_type{{
|
||
|
|
value[0],
|
||
|
|
value[1],
|
||
|
|
value[2],
|
||
|
|
value[3],
|
||
|
|
value[4],
|
||
|
|
value[5],
|
||
|
|
static_cast<value_type>((value[6] & 0x5F) | 0x50),
|
||
|
|
value[7],
|
||
|
|
static_cast<value_type>((value[8] & 0xBF) | 0x80),
|
||
|
|
value[9],
|
||
|
|
value[10],
|
||
|
|
value[11],
|
||
|
|
value[12],
|
||
|
|
value[13],
|
||
|
|
value[14],
|
||
|
|
value[15]
|
||
|
|
}};
|
||
|
|
}
|
||
|
|
SPROUT_CONSTEXPR result_type sha_to_uuid(sprout::sha1 const& sha) const {
|
||
|
|
return sha_to_uuid_1(sha.checksum());
|
||
|
|
}
|
||
|
|
public:
|
||
|
|
SPROUT_CONSTEXPR sha1_name_generator()
|
||
|
|
: sum_(sprout::sha1::const_type().process_range(sprout::uuids::uuid{{0}}))
|
||
|
|
{}
|
||
|
|
explicit SPROUT_CONSTEXPR sha1_name_generator(sprout::uuids::uuid const& namespace_uuid)
|
||
|
|
: sum_(sprout::sha1::const_type().process_range(namespace_uuid))
|
||
|
|
{}
|
||
|
|
template<typename Elem, std::size_t N, typename Traits>
|
||
|
|
SPROUT_CONSTEXPR result_type operator()(sprout::basic_string<Elem, N, Traits> const& name) const {
|
||
|
|
return sha_to_uuid(sum_.process_range(name));
|
||
|
|
}
|
||
|
|
SPROUT_CONSTEXPR result_type operator()(char const* name) const {
|
||
|
|
return sha_to_uuid(sum_.process_bytes(name, sprout::char_traits<char>::length(name)));
|
||
|
|
}
|
||
|
|
SPROUT_CONSTEXPR result_type operator()(wchar_t const* name) const {
|
||
|
|
return sha_to_uuid(sum_.process_bytes(name, sprout::char_traits<wchar_t>::length(name)));
|
||
|
|
}
|
||
|
|
SPROUT_CONSTEXPR result_type operator()(char16_t const* name) const {
|
||
|
|
return sha_to_uuid(sum_.process_bytes(name, sprout::char_traits<char16_t>::length(name)));
|
||
|
|
}
|
||
|
|
SPROUT_CONSTEXPR result_type operator()(char32_t const* name) const {
|
||
|
|
return sha_to_uuid(sum_.process_bytes(name, sprout::char_traits<char32_t>::length(name)));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
} // namespace uuids
|
||
|
|
} // namespace sprout
|
||
|
|
|
||
|
|
#endif // #ifndef SPROUT_UUID_SHA1_NAME_GENERATOR_HPP
|