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#include "memoryusage.h"
#include <QtGlobal>
#ifdef Q_OS_LINUX
#include <QFile>
#include <QRegularExpression>
#else
#ifdef Q_OS_WIN32
#include "windows.h"
#include "psapi.h"
#else
#ifdef Q_OS_MAC
#include <mach/mach.h>
#endif // Q_OS_MAC
#endif // Q_OS_WIN32
#endif // Q_OS_LINUX
#ifdef Q_OS_LINUX
int getMemoryUsage()
{
static const QRegularExpression re("VmSize\\:\\s+(\\d+)\\s+(\\w+)");
QFile file("/proc/self/status");
if (!file.open(QIODevice::ReadOnly))
return -1;
QString contents = file.readAll();
QRegularExpressionMatch match = re.match(contents);
if (!match.hasMatch())
return -1;
bool ok;
int result = match.captured(1).toInt(&ok);
if (!ok)
return -1;
QString unit = match.captured(2).toLower();
if (unit == "mb")
return result * 1024 * 1024;
if (unit == "kb")
return result * 1024;
return result;
}
#else
#ifdef Q_OS_WIN32
int getMemoryUsage()
{
PROCESS_MEMORY_COUNTERS_EX pmc;
GetProcessMemoryInfo(GetCurrentProcess(), (PROCESS_MEMORY_COUNTERS*)&pmc, sizeof(pmc));
return pmc.PrivateUsage;
}
#else
#ifdef Q_OS_MAC
int getMemoryUsage()
{
struct task_basic_info t_info;
mach_msg_type_number_t t_info_count = TASK_BASIC_INFO_COUNT;
if (KERN_SUCCESS != task_info(mach_task_self(), TASK_BASIC_INFO, (task_info_t)&t_info, &t_info_count))
return -1;
return t_info.virtual_size;
}
#else
int getMemoryUsage()
{
return -1;
}
#endif // Q_OS_MAC
#endif // Q_OS_WIN32
#endif // Q_OS_LINUX
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