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[KERNEL32]
- GlobalMemoryStatusEx: Correctly compute ullTotalPageFile which should be in bytes, instead of in number of pages. Patch by contributor "kkat". CORE-10361 - GlobalMemoryStatusEx: Fail if the stored length in the data buffer is not what is expected by the API (required by the spec, see MSDN; on the contrary, GlobalMemoryStatus does not require that.) - GlobalMemoryStatus: Correctly round up the reported total/available memory values, in case they are bigger than ~= 2GB. svn path=/trunk/; revision=69608
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@ -1276,6 +1276,12 @@ GlobalMemoryStatusEx(LPMEMORYSTATUSEX lpBuffer)
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QUOTA_LIMITS QuotaLimits;
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ULONGLONG PageFile, PhysicalMemory;
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if (lpBuffer->dwLength != sizeof(*lpBuffer))
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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/* Query performance information */
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NtQuerySystemInformation(SystemPerformanceInformation,
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&PerformanceInfo,
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@ -1312,6 +1318,7 @@ GlobalMemoryStatusEx(LPMEMORYSTATUSEX lpBuffer)
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/* Save the commit limit */
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lpBuffer->ullTotalPageFile = min(QuotaLimits.PagefileLimit,
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PerformanceInfo.CommitLimit);
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lpBuffer->ullTotalPageFile *= BaseStaticServerData->SysInfo.PageSize;
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/* Calculate how many pages are left */
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PageFile = PerformanceInfo.CommitLimit - PerformanceInfo.CommittedPages;
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@ -1327,9 +1334,9 @@ GlobalMemoryStatusEx(LPMEMORYSTATUSEX lpBuffer)
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BaseStaticServerData->SysInfo.MinimumUserModeAddress) + 1;
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/* And finally the avilable virtual space */
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lpBuffer->ullAvailVirtual = lpBuffer->ullTotalVirtual -
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VmCounters.VirtualSize;
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lpBuffer->ullAvailVirtual = lpBuffer->ullTotalVirtual - VmCounters.VirtualSize;
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lpBuffer->ullAvailExtendedVirtual = 0;
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return TRUE;
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}
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@ -1349,12 +1356,12 @@ GlobalMemoryStatus(LPMEMORYSTATUS lpBuffer)
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/* Reset the right size and fill out the information */
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lpBuffer->dwLength = sizeof(MEMORYSTATUS);
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lpBuffer->dwMemoryLoad = lpBufferEx.dwMemoryLoad;
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lpBuffer->dwTotalPhys = (SIZE_T)lpBufferEx.ullTotalPhys;
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lpBuffer->dwAvailPhys = (SIZE_T)lpBufferEx.ullAvailPhys;
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lpBuffer->dwTotalPageFile = (SIZE_T)lpBufferEx.ullTotalPageFile;
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lpBuffer->dwAvailPageFile = (SIZE_T)lpBufferEx.ullAvailPageFile;
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lpBuffer->dwTotalVirtual = (SIZE_T)lpBufferEx.ullTotalVirtual;
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lpBuffer->dwAvailVirtual = (SIZE_T)lpBufferEx.ullAvailVirtual;
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lpBuffer->dwTotalPhys = (SIZE_T)min(lpBufferEx.ullTotalPhys, MAXULONG_PTR);
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lpBuffer->dwAvailPhys = (SIZE_T)min(lpBufferEx.ullAvailPhys, MAXULONG_PTR);
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lpBuffer->dwTotalPageFile = (SIZE_T)min(lpBufferEx.ullTotalPageFile, MAXULONG_PTR);
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lpBuffer->dwAvailPageFile = (SIZE_T)min(lpBufferEx.ullAvailPageFile, MAXULONG_PTR);
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lpBuffer->dwTotalVirtual = (SIZE_T)min(lpBufferEx.ullTotalVirtual, MAXULONG_PTR);
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lpBuffer->dwAvailVirtual = (SIZE_T)min(lpBufferEx.ullAvailVirtual, MAXULONG_PTR);
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}
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}
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