Differential D20337 Diff 55634 src/shared/akscopeguard.h

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src/shared/akscopeguard.h

  • This file was copied from src/server/storage/transaction.cpp.
1/* 1​/*
2 Copyright (c) 2006 Volker Krause <vkrause@kde.org> 2​ Copyright (C) 2019 Daniel Vrátil <dvratil@kde.org>
3 3​
4 This library is free software; you can redistribute it and/or modify it 4​ This library is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Library General Public License as published by 5​ under the terms of the GNU Library General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or (at your 6​ the Free Software Foundation; either version 2 of the License, or (at your
7 option) any later version. 7​ option) any later version.
8 8​
9 This library is distributed in the hope that it will be useful, but WITHOUT 9​ This library is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10​ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public 11​ FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
12 License for more details. 12​ License for more details.
13 13​
14 You should have received a copy of the GNU Library General Public License 14​ You should have received a copy of the GNU Library General Public License
15 along with this library; see the file COPYING.LIB. If not, write to the 15​ along with this library; see the file COPYING.LIB. If not, write to the
16 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 16​ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17 02110-1301, USA. 17​ 02110-1301, USA.
18*/ 18​*/
19 19​
20#include "transaction.h" 20​#ifndef AKSCOPEGUARD_H_
21#include "storage/datastore.h" 21​#define AKSCOPEGUARD_H_
22 22​
23using namespace Akonadi::Server; 23​#include <functional>
24​#include <qglobal.h>
24 25​
25Transaction::Transaction(DataStore *db, const QString &name, bool beginTransaction) 26​class AkScopeGuard
26 : mDb(db) ​
27 , mName(name) ​
28 , mCommitted(false) ​
29{ 27​{
30 if (beginTransaction) { 28​public:
31 mDb->beginTransaction(mName); 29​ AkScopeGuard(std::function<void() noexcept> &&func)
32 } 30​ : mFunc(func)
33} 31​ {}
34 32​
35Transaction::~Transaction() 33​ ~AkScopeGuard() noexcept
36{ 34​ {
37 if (!mCommitted) { 35​ mFunc();
dfaureUnsubmitted
Not Done

Is there any situation where this might be null?

dfaure: Is there any situation where this might be null?
38 mDb->rollbackTransaction(); ​
39 } ​
40} 36​ }
41 37​
42bool Transaction::commit() 38​private:
43{ 39​ Q_DISABLE_COPY(AkScopeGuard);
44 mCommitted = true; 40​ AkScopeGuard(AkScopeGuard &&) = delete;
45 return mDb->commitTransaction(); 41​ AkScopeGuard &operator=(AkScopeGuard &&) = delete;
46} ​
47 42​
48void Transaction::begin() 43​ std::function<void() noexcept> mFunc;
49{ 44​};
50 mDb->beginTransaction(mName); 45​
51} 46​#endif