CDB.hpp

   1 #ifndef CDB_DOT_HPP
   2 #define CDB_DOT_HPP
   3
   4 #include <memory>
   5 #include <optional>
   6 #include <string>
   7 #include <string_view>
   8
   9 extern "C" {
  10 #include <cdb.h>
  11 }
  12
  13 #include "fs.hpp"
  14
  15 class CDB {
  16 public:
  17   CDB(CDB const&) = delete;
  18   CDB& operator=(CDB const&) = delete;
  19
  20   CDB() = default;
  21   explicit CDB(fs::path db) { open(db); }
  22   ~CDB();
  23
  24   bool                       open(fs::path db);
  25   std::optional<std::string> find(std::string_view key);
  26   bool                       contains(std::string_view key);
  27   constexpr bool             is_open() const;
  28
  29 private:
  30   int fd_{-1};
  31   cdb cdb_{0};
  32 };
  33
  34 constexpr bool CDB::is_open() const { return fd_ != -1; }
  35
  36 #endif // CDB_DOT_HPP