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/*
* Copyright (C) 2019 ~ 2020 Uniontech Software Technology Co.,Ltd.
*
* Author: zyc <zyc@uniontech.com>
*
* Maintainer: zyc <zyc@uniontech.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "sharedmemorymanager.h"
#include <QSharedMemory>
#include <QDebug>
#define LOG_POLIKIT_STOP_TAG "LOGAUTHCONTROL"
std::atomic<SharedMemoryManager *> SharedMemoryManager::m_instance;
std::mutex SharedMemoryManager::m_mutex;
SharedMemoryManager::SharedMemoryManager(QObject *parent)
: QObject(parent)
{
init();
}
void SharedMemoryManager::setRunnableTag(ShareMemoryInfo iShareInfo)
{
m_commondM->lock();
qDebug() << "setRunnableTag" << iShareInfo.isStart;
m_pShareMemoryInfo = static_cast<ShareMemoryInfo *>(m_commondM->data());
if (m_pShareMemoryInfo) {
m_pShareMemoryInfo->isStart = iShareInfo.isStart;
} else {
qWarning() << "conntrol mem is Not Attech ";
}
m_commondM->unlock();
}
QString SharedMemoryManager::getRunnableKey()
{
return m_commondM->key();
}
bool SharedMemoryManager::isAttached()
{
return (m_commondM && m_commondM->isAttached());
}
void SharedMemoryManager::releaseMemory()
{
if (m_commondM) {
// m_commondM->unlock();
qDebug() << "m_commondM->error" << m_commondM->error() << m_commondM->errorString();
if (m_commondM->isAttached()) //检测程序当前是否关联共享内存
m_commondM->detach();
qDebug() << "m_commondM->error" << m_commondM->error() << m_commondM->errorString();
}
}
void SharedMemoryManager::init()
{
m_commondM = new QSharedMemory(this);
QString tag = LOG_POLIKIT_STOP_TAG ;//+ QString::number(m_threadCount);
m_commondM->setKey(tag);
if (m_commondM->isAttached()) //检测程序当前是否关联共享内存
m_commondM->detach();
if (!m_commondM->create(sizeof(ShareMemoryInfo))) { //创建共享内存，大小为size
qWarning() << "ShareMemory create error" << m_commondM->key() << QSharedMemory::SharedMemoryError(m_commondM->error()) << m_commondM->errorString();
if (m_commondM->isAttached()) //检测程序当前是否关联共享内存
m_commondM->detach();
m_commondM->attach();
} else {
// 创建好以后，保持共享内存连接，防止释放。
m_commondM->attach();
// 主进程：首次赋值m_pShareMemoryInfo
}
ShareMemoryInfo info;
info.isStart = true;
setRunnableTag(info);
}
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