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// SPDX-FileCopyrightText: 2019 - 2022 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef SHAREDMEMORYMANAGER_H
#define SHAREDMEMORYMANAGER_H
#include <QObject>
#include <mutex>
struct ShareMemoryInfo {
bool isStart = true ;
};
class QSharedMemory;
class SharedMemoryManager : public QObject
{
public:
static SharedMemoryManager *instance()
{
SharedMemoryManager *sin = m_instance.load();
if (!sin) {
std::lock_guard<std::mutex> lock(m_mutex);
sin = m_instance.load();
if (!sin) {
sin = new SharedMemoryManager();
m_instance.store(sin);
}
}
return sin;
}
static SharedMemoryManager *getInstance();
void setRunnableTag(ShareMemoryInfo iShareInfo);
QString getRunnableKey();
bool isAttached();
void releaseMemory();
protected:
explicit SharedMemoryManager(QObject *parent = nullptr);
void init();
private:
static std::atomic<SharedMemoryManager *> m_instance;
static std::mutex m_mutex;
QSharedMemory *m_commondM = nullptr;
ShareMemoryInfo *m_pShareMemoryInfo = nullptr;
};
#endif // SHAREDMEMORYMANAGER_H
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