Line data    Source code

       1             : /**
       2             : Copyright (c) 2019-2022 Roman Katuntsev <sbkarr@stappler.org>
       3             : Copyright (c) 2023 Stappler LLC <admin@stappler.dev>
       4             : 
       5             : Permission is hereby granted, free of charge, to any person obtaining a copy
       6             : of this software and associated documentation files (the "Software"), to deal
       7             : in the Software without restriction, including without limitation the rights
       8             : to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       9             : copies of the Software, and to permit persons to whom the Software is
      10             : furnished to do so, subject to the following conditions:
      11             : 
      12             : The above copyright notice and this permission notice shall be included in
      13             : all copies or substantial portions of the Software.
      14             : 
      15             : THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      16             : IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      17             : FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      18             : AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      19             : LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      20             : OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
      21             : THE SOFTWARE.
      22             : **/
      23             : 
      24             : #ifndef STAPPLER_CORE_MEMORY_SPMEMUUID_H_
      25             : #define STAPPLER_CORE_MEMORY_SPMEMUUID_H_
      26             : 
      27             : #include "SPMemString.h"
      28             : #include "SPMemVector.h"
      29             : #include "SPBytesView.h"
      30             : #include "SPStringView.h"
      31             : 
      32             : namespace STAPPLER_VERSIONIZED stappler::memory {
      33             : 
      34             : struct uuid : AllocPool {
      35             :         static constexpr size_t FormattedLength = 36;
      36             : 
      37             :         using uuid_t = std::array<uint8_t, 16>;
      38             : 
      39             :         static bool parse(uuid_t &, const char *);
      40             :         static void format(char *, const uuid_t &);
      41             :         static uuid generate();
      42             : 
      43        2975 :         uuid() {
      44        2975 :                 memset(_uuid.data(), 0, 16);
      45        2975 :         }
      46             : 
      47           0 :         uuid(StringView str) {
      48           0 :                 parse(_uuid, str.data());
      49           0 :         }
      50             : 
      51         150 :         uuid(BytesView b) {
      52         150 :                 if (b.size() == 16) {
      53         150 :                         memcpy(_uuid.data(), b.data(), 16);
      54             :                 }
      55         150 :         }
      56             : 
      57          25 :         uuid(const uuid_t &u) : _uuid(u) { }
      58             :         uuid(const uuid &u) : _uuid(u._uuid) { }
      59             : 
      60         175 :         uuid &operator= (const uuid &u) { _uuid = u._uuid; return *this; }
      61             : 
      62             :         uuid &operator= (const memory::string &str) {
      63             :                 parse(_uuid, str.data());
      64             :                 return *this;
      65             :         }
      66             : 
      67             :         uuid &operator= (const std::string &str) {
      68             :                 parse(_uuid, str.data());
      69             :                 return *this;
      70             :         }
      71             : 
      72             :         uuid &operator= (const memory::vector<uint8_t> &b) {
      73             :                 if (b.size() == 16) {
      74             :                         memcpy(_uuid.data(), b.data(), 16);
      75             :                 }
      76             :                 return *this;
      77             :         }
      78             : 
      79             :         uuid &operator= (const std::vector<uint8_t> &b) {
      80             :                 if (b.size() == 16) {
      81             :                         memcpy(_uuid.data(), b.data(), 16);
      82             :                 }
      83             :                 return *this;
      84             :         }
      85             : 
      86             :         template <typename Str = string>
      87           0 :         auto str() const -> Str {
      88           0 :                 char buf[FormattedLength] = { 0 };
      89           0 :                 format(buf, _uuid);
      90           0 :                 return Str(buf, FormattedLength);
      91             :         }
      92             : 
      93             :         template <typename B = memory::vector<uint8_t>>
      94          25 :         auto bytes() const -> B {
      95          25 :                 return B(_uuid.data(), _uuid.data() + 16);
      96             :         }
      97             : 
      98             :         uuid_t array() const {
      99             :                 return _uuid;
     100             :         }
     101             : 
     102         350 :         BytesView view() const {
     103         350 :                 return BytesView(_uuid);
     104             :         }
     105             : 
     106             :         const uint8_t *data() const { return _uuid.data(); }
     107             :         size_t size() const { return 16; }
     108             : 
     109             :         uuid_t _uuid;
     110             : };
     111             : 
     112             : }
     113             : 
     114             : #endif /* STAPPLER_CORE_MEMORY_SPMEMUUID_H_ */