gpt4all/gpt4all-chat/sysinfo.h

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