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49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
#include <QtCore/QCoreApplication>
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#include <QDebug>
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#include <QFile>
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#include <QTextStream>
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#include <QRegularExpression>
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#if defined(Q_OS_MAC)
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#endif
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#if defined(Q_OS_WIN)
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#include <Windows.h>
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#endif
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QString getSystemTotalRAM()
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{
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qint64 totalRAM = 0;
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#if defined(Q_OS_LINUX)
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QFile file("/proc/meminfo");
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if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
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QTextStream in(&file);
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QString line = in.readLine();
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while (!line.isNull()) {
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if (line.startsWith("MemTotal")) {
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QStringList parts = line.split(QRegularExpression("\\s+"));
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totalRAM = parts[1].toLongLong() * 1024; // Convert from KB to bytes
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break;
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}
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line = in.readLine();
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}
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file.close();
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}
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#elif defined(Q_OS_MAC)
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int mib[2] = {CTL_HW, HW_MEMSIZE};
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size_t length = sizeof(totalRAM);
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sysctl(mib, 2, &totalRAM, &length, NULL, 0);
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#elif defined(Q_OS_WIN)
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MEMORYSTATUSEX memoryStatus;
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memoryStatus.dwLength = sizeof(memoryStatus);
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GlobalMemoryStatusEx(&memoryStatus);
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totalRAM = memoryStatus.ullTotalPhys;
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#endif
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double totalRAM_GB = static_cast<double>(totalRAM) / (1024 * 1024 * 1024);
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return QString::number(totalRAM_GB, 'f', 2) + " GB";
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}
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