1 // Windows/System.cpp

     2 

     3 #include "StdAfx.h"

     4 

     5 #include "System.h"

     6 

     7 namespace NWindows {

     8 namespace NSystem {

     9 

    10 UInt32 GetNumberOfProcessors()

    11 {

    12   SYSTEM_INFO systemInfo;

    13   GetSystemInfo(&systemInfo);

    14   return (UInt32)systemInfo.dwNumberOfProcessors;

    15 }

    16 

    17 #if !defined(_WIN64) && defined(__GNUC__)

    18 

    19 typedef struct _MY_MEMORYSTATUSEX {

    20   DWORD dwLength;

    21   DWORD dwMemoryLoad;

    22   DWORDLONG ullTotalPhys;

    23   DWORDLONG ullAvailPhys;

    24   DWORDLONG ullTotalPageFile;

    25   DWORDLONG ullAvailPageFile;

    26   DWORDLONG ullTotalVirtual;

    27   DWORDLONG ullAvailVirtual;

    28   DWORDLONG ullAvailExtendedVirtual;

    29 } MY_MEMORYSTATUSEX, *MY_LPMEMORYSTATUSEX;

    30 

    31 #else

    32 

    33 #define MY_MEMORYSTATUSEX MEMORYSTATUSEX

    34 #define MY_LPMEMORYSTATUSEX LPMEMORYSTATUSEX

    35 

    36 #endif

    37 

    38 typedef BOOL (WINAPI *GlobalMemoryStatusExP)(MY_LPMEMORYSTATUSEX lpBuffer);

    39 

    40 UInt64 GetRamSize()

    41 {

    42   MY_MEMORYSTATUSEX stat;

    43   stat.dwLength = sizeof(stat);

    44   #ifdef _WIN64

    45   if (!::GlobalMemoryStatusEx(&stat))

    46     return 0;

    47   return stat.ullTotalPhys;

    48   #else

    49   GlobalMemoryStatusExP globalMemoryStatusEx = (GlobalMemoryStatusExP)

    50         ::GetProcAddress(::GetModuleHandle(TEXT("kernel32.dll")),

    51         "GlobalMemoryStatusEx");

    52   if (globalMemoryStatusEx != 0)

    53     if (globalMemoryStatusEx(&stat))

    54       return stat.ullTotalPhys;

    55   {

    56     MEMORYSTATUS stat;

    57     stat.dwLength = sizeof(stat);

    58     GlobalMemoryStatus(&stat);

    59     return stat.dwTotalPhys;

    60   }

    61   #endif

    62 }

    63 

    64 }}