70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
/*
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* SPDX-License-Identifier: GPL-3.0-only
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* MuseScore-CLA-applies
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*
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* MuseScore
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* Music Composition & Notation
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*
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* Copyright (C) 2021 MuseScore BVBA and others
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 3 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef MU_MI_RESOURCELOCKGUARD_H
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#define MU_MI_RESOURCELOCKGUARD_H
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#include <string>
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#include <memory>
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#include "imultiinstancesprovider.h"
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namespace mu::mi {
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class ReadResourceLockGuard
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{
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public:
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ReadResourceLockGuard(std::shared_ptr<IMultiInstancesProvider> provider, const std::string& name)
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: m_provider(provider), m_name(name)
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{
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if (m_provider) {
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m_provider->lockResource(m_name);
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}
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}
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~ReadResourceLockGuard()
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{
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if (m_provider) {
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m_provider->unlockResource(m_name);
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}
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}
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protected:
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std::shared_ptr<IMultiInstancesProvider> m_provider = nullptr;
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std::string m_name;
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};
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class WriteResourceLockGuard : ReadResourceLockGuard
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{
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public:
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WriteResourceLockGuard(std::shared_ptr<IMultiInstancesProvider> provider, const std::string& name)
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: ReadResourceLockGuard(provider, name)
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{
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}
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~WriteResourceLockGuard()
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{
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if (m_provider) {
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m_provider->notifyAboutResourceChanged(m_name);
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}
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}
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};
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}
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#endif // MU_MI_RESOURCELOCKGUARD_H
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