mlangkabel
dfc6d88432
* removed paths in include directives * changed cmake to provide necessary header search paths * changed name of version.h to productVersion.h due to name conflict
47 lines
785 B
C++
47 lines
785 B
C++
#include "utilityWindows.h"
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#ifdef WIN32
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#include <Windows.h>
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unsigned long utility::getLargestByteSizeOfAllocatableMemory()
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{
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MEMORY_BASIC_INFORMATION mbi;
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unsigned long start = 0;
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bool recording = false;
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unsigned long freestart = 0, largestFreestart = 0;
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__int64 free = 0, largestFree = 0;
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while (true)
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{
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SIZE_T s = VirtualQuery((LPCVOID)start, &mbi, sizeof(mbi));
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if (s != sizeof(mbi)) break;
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if (mbi.State == MEM_FREE)
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{
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if (!recording) freestart = start;
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free += mbi.RegionSize;
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recording = true;
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}
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else
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{
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if (recording)
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{
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if (free > largestFree)
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{
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largestFree = free;
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largestFreestart = freestart;
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}
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}
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free = 0;
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recording = false;
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}
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start += mbi.RegionSize;
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}
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return largestFree;
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}
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#endif // WIN32
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