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Fix COSOperator::getSystemMemory 

The values it returns are in Kilobytes and it was broken on macOS.
This commit is contained in:
sfan5 2022-03-09 22:39:25 +01:00
parent df908ef4ea
commit e469c54f76
2 changed files with 11 additions and 11 deletions
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4
include/IOSOperator.h
View File

@ -33,8 +33,8 @@ public:
virtual const c8* getTextFromClipboard() const = 0;
//! Get the total and available system RAM
/** \param totalBytes: will contain the total system memory in bytes
\param availableBytes: will contain the available memory in bytes
/** \param totalBytes: will contain the total system memory in Kilobytes (1024 B)
\param availableBytes: will contain the available memory in Kilobytes (1024 B)
\return True if successful, false if not */
virtual bool getSystemMemory(u32* totalBytes, u32* availableBytes) const = 0;

18
source/Irrlicht/COSOperator.cpp
View File

@ -163,24 +163,19 @@ bool COSOperator::getSystemMemory(u32* Total, u32* Avail) const
*Avail = (u32)(MemoryStatusEx.ullAvailPhys>>10);
return true;
#elif defined(_IRR_POSIX_API_) && !defined(__FreeBSD__)
#if defined(_SC_PHYS_PAGES) && defined(_SC_AVPHYS_PAGES)
#elif defined(_IRR_POSIX_API_) && defined(_SC_PHYS_PAGES) && defined(_SC_AVPHYS_PAGES)
long ps = sysconf(_SC_PAGESIZE);
long pp = sysconf(_SC_PHYS_PAGES);
long ap = sysconf(_SC_AVPHYS_PAGES);
if ((ps==-1)||(pp==-1)||(ap==-1))
if (ps == -1 || (Total && pp == -1) || (Avail && ap == -1))
return false;
if (Total)
*Total = (u32)((ps*(long long)pp)>>10);
*Total = (u32)((pp>>10)*ps);
if (Avail)
*Avail = (u32)((ps*(long long)ap)>>10);
*Avail = (u32)((ap>>10)*ps);
return true;
#else
// TODO: implement for non-availability of symbols/features
return false;
#endif
#elif defined(_IRR_OSX_PLATFORM_)
int mib[2];
int64_t physical_memory;
@ -191,6 +186,11 @@ bool COSOperator::getSystemMemory(u32* Total, u32* Avail) const
mib[1] = HW_MEMSIZE;
length = sizeof(int64_t);
sysctl(mib, 2, &physical_memory, &length, NULL, 0);
if (Total)
*Total = (u32)(physical_memory>>10);
if (Avail)
*Avail = (u32)(physical_memory>>10); // we don't know better
return true;
#else
// TODO: implement for others