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70 lines
2 KiB
C++
70 lines
2 KiB
C++
/* -*- 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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#include "mozilla/dom/quota/StorageHelpers.h"
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#include "mozilla/dom/quota/QuotaCommon.h"
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#include "mozilla/dom/quota/ResultExtensions.h"
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namespace mozilla::dom::quota {
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AutoDatabaseAttacher::AutoDatabaseAttacher(
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nsCOMPtr<mozIStorageConnection> aConnection,
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nsCOMPtr<nsIFile> aDatabaseFile, const nsLiteralCString& aSchemaName)
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: mConnection(std::move(aConnection)),
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mDatabaseFile(std::move(aDatabaseFile)),
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mSchemaName(aSchemaName),
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mAttached(false) {}
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AutoDatabaseAttacher::~AutoDatabaseAttacher() {
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if (mAttached) {
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QM_WARNONLY_TRY(MOZ_TO_RESULT(Detach()));
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}
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}
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nsresult AutoDatabaseAttacher::Attach() {
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MOZ_ASSERT(mConnection);
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MOZ_ASSERT(mDatabaseFile);
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MOZ_ASSERT(!mAttached);
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#ifdef DEBUG
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{
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QM_TRY_INSPECT(const bool& exists,
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MOZ_TO_RESULT_INVOKE_MEMBER(mDatabaseFile, Exists));
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MOZ_ASSERT(exists);
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}
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#endif
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QM_TRY_INSPECT(const auto& path, MOZ_TO_RESULT_INVOKE_MEMBER_TYPED(
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nsString, mDatabaseFile, GetPath));
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QM_TRY_INSPECT(
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const auto& stmt,
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MOZ_TO_RESULT_INVOKE_MEMBER_TYPED(
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nsCOMPtr<mozIStorageStatement>, mConnection, CreateStatement,
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"ATTACH DATABASE :path AS "_ns + mSchemaName + ";"_ns));
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QM_TRY(MOZ_TO_RESULT(stmt->BindStringByName("path"_ns, path)));
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QM_TRY(MOZ_TO_RESULT(stmt->Execute()));
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mAttached = true;
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return NS_OK;
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}
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nsresult AutoDatabaseAttacher::Detach() {
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MOZ_ASSERT(mConnection);
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MOZ_ASSERT(mAttached);
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QM_TRY(MOZ_TO_RESULT(
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mConnection->ExecuteSimpleSQL("DETACH DATABASE "_ns + mSchemaName)));
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mAttached = false;
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return NS_OK;
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}
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} // namespace mozilla::dom::quota
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