dom/indexedDB/DBSchema.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef dom_indexeddb_dbschema_h__
   8 #define dom_indexeddb_dbschema_h__
   9
  10 #include "ErrorList.h"
  11
  12 #include <cstdint>
  13
  14 class mozIStorageConnection;
  15
  16 namespace mozilla::dom::indexedDB {
  17
  18 // Major schema version. Bump for almost everything.
  19 const uint32_t kMajorSchemaVersion = 26;
  20
  21 // Minor schema version. Should almost always be 0 (maybe bump on release
  22 // branches if we have to).
  23 const uint32_t kMinorSchemaVersion = 0;
  24
  25 // The schema version we store in the SQLite database is a (signed) 32-bit
  26 // integer. The major version is left-shifted 4 bits so the max value is
  27 // 0xFFFFFFF. The minor version occupies the lower 4 bits and its max is 0xF.
  28 static_assert(kMajorSchemaVersion <= 0xFFFFFFF,
  29               "Major version needs to fit in 28 bits.");
  30 static_assert(kMinorSchemaVersion <= 0xF,
  31               "Minor version needs to fit in 4 bits.");
  32
  33 constexpr int32_t MakeSchemaVersion(uint32_t aMajorSchemaVersion,
  34                                     uint32_t aMinorSchemaVersion) {
  35   return int32_t((aMajorSchemaVersion << 4) + aMinorSchemaVersion);
  36 }
  37
  38 constexpr int32_t kSQLiteSchemaVersion =
  39     MakeSchemaVersion(kMajorSchemaVersion, kMinorSchemaVersion);
  40
  41 nsresult CreateFileTables(mozIStorageConnection& aConnection);
  42 nsresult CreateTables(mozIStorageConnection& aConnection);
  43
  44 }  // namespace mozilla::dom::indexedDB
  45
  46 #endif