зеркало из https://github.com/mozilla/gecko-dev.git
47 строки
1.6 KiB
C
47 строки
1.6 KiB
C
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef dom_indexeddb_dbschema_h__
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#define dom_indexeddb_dbschema_h__
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#include "ErrorList.h"
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#include <cstdint>
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class mozIStorageConnection;
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namespace mozilla::dom::indexedDB {
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// Major schema version. Bump for almost everything.
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const uint32_t kMajorSchemaVersion = 26;
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// Minor schema version. Should almost always be 0 (maybe bump on release
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// branches if we have to).
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const uint32_t kMinorSchemaVersion = 0;
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// The schema version we store in the SQLite database is a (signed) 32-bit
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// integer. The major version is left-shifted 4 bits so the max value is
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// 0xFFFFFFF. The minor version occupies the lower 4 bits and its max is 0xF.
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static_assert(kMajorSchemaVersion <= 0xFFFFFFF,
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"Major version needs to fit in 28 bits.");
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static_assert(kMinorSchemaVersion <= 0xF,
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"Minor version needs to fit in 4 bits.");
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constexpr int32_t MakeSchemaVersion(uint32_t aMajorSchemaVersion,
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uint32_t aMinorSchemaVersion) {
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return int32_t((aMajorSchemaVersion << 4) + aMinorSchemaVersion);
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}
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constexpr int32_t kSQLiteSchemaVersion =
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MakeSchemaVersion(kMajorSchemaVersion, kMinorSchemaVersion);
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nsresult CreateFileTables(mozIStorageConnection& aConnection);
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nsresult CreateTables(mozIStorageConnection& aConnection);
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} // namespace mozilla::dom::indexedDB
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#endif
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