external/bsd/kyua-cli/dist/utils/sqlite/c_gate.hpp

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  28
  29 /// \file c_gate.hpp
  30 /// Provides direct access to the C state of the SQLite wrappers.
  31
  32 #if !defined(UTILS_SQLITE_C_GATE_HPP)
  33 #define UTILS_SQLITE_C_GATE_HPP
  34
  35 extern "C" {
  36 #include <sqlite3.h>
  37 }
  38
  39 namespace utils {
  40 namespace sqlite {
  41
  42
  43 class database;
  44
  45
  46 /// Gateway to the raw C database of SQLite 3.
  47 ///
  48 /// This class provides a mechanism to muck with the internals of the database
  49 /// wrapper class.
  50 ///
  51 /// \warning The use of this class is discouraged.  By using this class, you are
  52 /// entering the world of unsafety.  Anything you do through the objects exposed
  53 /// through this class will not be controlled by RAII patterns not validated in
  54 /// any other way, so you can end up corrupting the SQLite 3 state and later get
  55 /// crashes on otherwise perfectly-valid C++ code.
  56 class database_c_gate {
  57     /// The C++ database that this class wraps.
  58     database& _database;
  59
  60 public:
  61     database_c_gate(database&);
  62     ~database_c_gate(void);
  63
  64     static database connect(::sqlite3*);
  65
  66     ::sqlite3* c_database(void);
  67 };
  68
  69
  70 }  // namespace sqlite
  71 }  // namespace utils
  72
  73 #endif  // !defined(UTILS_SQLITE_C_GATE_HPP)