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143 lines
2.9 KiB
143 lines
2.9 KiB
// Windows/System.cpp
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#include "StdAfx.h"
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#include "../Common/MyWindows.h"
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#include "../Common/Defs.h"
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#include "System.h"
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namespace NWindows {
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namespace NSystem {
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UInt32 CountAffinity(DWORD_PTR mask)
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{
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UInt32 num = 0;
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for (unsigned i = 0; i < sizeof(mask) * 8; i++)
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num += (UInt32)((mask >> i) & 1);
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return num;
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}
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#ifdef _WIN32
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BOOL CProcessAffinity::Get()
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{
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#ifndef UNDER_CE
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return GetProcessAffinityMask(GetCurrentProcess(), &processAffinityMask, &systemAffinityMask);
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#else
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return FALSE;
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#endif
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}
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UInt32 GetNumberOfProcessors()
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{
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// We need to know how many threads we can use.
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// By default the process is assigned to one group.
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// So we get the number of logical processors (threads)
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// assigned to current process in the current group.
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// Group size can be smaller than total number logical processors, for exammple, 2x36
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CProcessAffinity pa;
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if (pa.Get() && pa.processAffinityMask != 0)
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return pa.GetNumProcessThreads();
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SYSTEM_INFO systemInfo;
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GetSystemInfo(&systemInfo);
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// the number of logical processors in the current group
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return (UInt32)systemInfo.dwNumberOfProcessors;
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}
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#else
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UInt32 GetNumberOfProcessors()
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{
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return 1;
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}
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#endif
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#ifdef _WIN32
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#ifndef UNDER_CE
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#if !defined(_WIN64) && defined(__GNUC__)
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typedef struct _MY_MEMORYSTATUSEX {
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DWORD dwLength;
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DWORD dwMemoryLoad;
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DWORDLONG ullTotalPhys;
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DWORDLONG ullAvailPhys;
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DWORDLONG ullTotalPageFile;
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DWORDLONG ullAvailPageFile;
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DWORDLONG ullTotalVirtual;
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DWORDLONG ullAvailVirtual;
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DWORDLONG ullAvailExtendedVirtual;
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} MY_MEMORYSTATUSEX, *MY_LPMEMORYSTATUSEX;
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#else
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#define MY_MEMORYSTATUSEX MEMORYSTATUSEX
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#define MY_LPMEMORYSTATUSEX LPMEMORYSTATUSEX
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#endif
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typedef BOOL (WINAPI *GlobalMemoryStatusExP)(MY_LPMEMORYSTATUSEX lpBuffer);
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#endif
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#endif
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bool GetRamSize(UInt64 &size)
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{
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size = (UInt64)(sizeof(size_t)) << 29;
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#ifdef _WIN32
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#ifndef UNDER_CE
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MY_MEMORYSTATUSEX stat;
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stat.dwLength = sizeof(stat);
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#endif
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#ifdef _WIN64
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if (!::GlobalMemoryStatusEx(&stat))
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return false;
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size = MyMin(stat.ullTotalVirtual, stat.ullTotalPhys);
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return true;
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#else
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#ifndef UNDER_CE
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GlobalMemoryStatusExP globalMemoryStatusEx = (GlobalMemoryStatusExP)
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::GetProcAddress(::GetModuleHandle(TEXT("kernel32.dll")), "GlobalMemoryStatusEx");
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if (globalMemoryStatusEx && globalMemoryStatusEx(&stat))
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{
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size = MyMin(stat.ullTotalVirtual, stat.ullTotalPhys);
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return true;
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}
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#endif
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{
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MEMORYSTATUS stat2;
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stat2.dwLength = sizeof(stat2);
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::GlobalMemoryStatus(&stat2);
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size = MyMin(stat2.dwTotalVirtual, stat2.dwTotalPhys);
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return true;
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}
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#endif
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#else
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return false;
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#endif
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}
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}}
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