misc/libphysfs/lzma/CPP/Windows/System.cpp
author nemo
Mon, 10 Apr 2017 12:06:43 -0400
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permissions -rw-r--r--
bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
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// Windows/System.cpp
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#include "StdAfx.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 GetNumberOfProcessors()
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{
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  SYSTEM_INFO systemInfo;
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  GetSystemInfo(&systemInfo);
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  return (UInt32)systemInfo.dwNumberOfProcessors;
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}
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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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UInt64 GetRamSize()
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{
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  MY_MEMORYSTATUSEX stat;
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  stat.dwLength = sizeof(stat);
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  #ifdef _WIN64
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  if (!::GlobalMemoryStatusEx(&stat))
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    return 0;
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  return stat.ullTotalPhys;
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  #else
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  GlobalMemoryStatusExP globalMemoryStatusEx = (GlobalMemoryStatusExP)
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        ::GetProcAddress(::GetModuleHandle(TEXT("kernel32.dll")),
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        "GlobalMemoryStatusEx");
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  if (globalMemoryStatusEx != 0)
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    if (globalMemoryStatusEx(&stat))
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      return stat.ullTotalPhys;
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  {
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    MEMORYSTATUS stat;
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    stat.dwLength = sizeof(stat);
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    GlobalMemoryStatus(&stat);
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    return stat.dwTotalPhys;
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  }
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  #endif
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}
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}}