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// Windows/System.cpp
#include "StdAfx.h"
#include "../Common/MyWindows.h"
#include "../Common/Defs.h"
#include "System.h"
namespace NWindows {
namespace NSystem {
#ifdef _WIN32
UInt32 GetNumberOfProcessors()
{
SYSTEM_INFO systemInfo;
GetSystemInfo(&systemInfo);
return (UInt32)systemInfo.dwNumberOfProcessors;
}
#else
UInt32 GetNumberOfProcessors()
{
return 1;
}
#endif
#ifdef _WIN32
#ifndef UNDER_CE
#if !defined(_WIN64) && defined(__GNUC__)
typedef struct _MY_MEMORYSTATUSEX {
DWORD dwLength;
DWORD dwMemoryLoad;
DWORDLONG ullTotalPhys;
DWORDLONG ullAvailPhys;
DWORDLONG ullTotalPageFile;
DWORDLONG ullAvailPageFile;
DWORDLONG ullTotalVirtual;
DWORDLONG ullAvailVirtual;
DWORDLONG ullAvailExtendedVirtual;
} MY_MEMORYSTATUSEX, *MY_LPMEMORYSTATUSEX;
#else
#define MY_MEMORYSTATUSEX MEMORYSTATUSEX
#define MY_LPMEMORYSTATUSEX LPMEMORYSTATUSEX
#endif
typedef BOOL (WINAPI *GlobalMemoryStatusExP)(MY_LPMEMORYSTATUSEX lpBuffer);
#endif
#endif
bool GetRamSize(UInt64 &size)
{
size = (UInt64)(sizeof(size_t)) << 29;
#ifdef _WIN32
#ifndef UNDER_CE
MY_MEMORYSTATUSEX stat;
stat.dwLength = sizeof(stat);
#endif
#ifdef _WIN64
if (!::GlobalMemoryStatusEx(&stat))
return false;
size = MyMin(stat.ullTotalVirtual, stat.ullTotalPhys);
return true;
#else
#ifndef UNDER_CE
GlobalMemoryStatusExP globalMemoryStatusEx = (GlobalMemoryStatusExP)
::GetProcAddress(::GetModuleHandle(TEXT("kernel32.dll")), "GlobalMemoryStatusEx");
if (globalMemoryStatusEx && globalMemoryStatusEx(&stat))
{
size = MyMin(stat.ullTotalVirtual, stat.ullTotalPhys);
return true;
}
#endif
{
MEMORYSTATUS stat2;
stat2.dwLength = sizeof(stat2);
::GlobalMemoryStatus(&stat2);
size = MyMin(stat2.dwTotalVirtual, stat2.dwTotalPhys);
return true;
}
#endif
#else
return false;
#endif
}
}}
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