private static List <ProcessorInfo> GetProcessorInfo64()
{
// First we're going to execute GetLogicalProcessorInformation
// once to make sure that we determine the size of the data
// that it is going to return.
// This call should fail with error ERROR_INSUFFICIENT_BUFFER.
uint iReturnLength = 0;
SystemLogicalProcessorInformatioNx64[] oDummy = null;
bool bResult = GetLogicalProcessorInformation(oDummy,
ref iReturnLength);
if (bResult)
{
throw Fail("GetLogicalProcessorInformation failed.", "x64");
}
// Making sure that the error code that we got back is not
// that there is in sufficient space in the buffer.
int iError = Marshal.GetLastWin32Error();
if (iError != ErrorInsufficientBuffer)
{
throw Fail(
"Insufficient space in the buffer.",
"x64", iError.ToString());
}
// Now that we know how much space we should reserve,
// we're going to reserve it and call
// GetLogicalProcessorInformation again.
var iBaseSize = (uint)Marshal.SizeOf(
typeof(SystemLogicalProcessorInformatioNx64));
uint iNumberOfElements = iReturnLength / iBaseSize;
var oData =
new SystemLogicalProcessorInformatioNx64[iNumberOfElements];
uint iAllocatedSize = iNumberOfElements * iBaseSize;
if (!GetLogicalProcessorInformation(oData, ref iAllocatedSize))
{
throw Fail("GetLogicalProcessorInformation failed",
"x64", Marshal.GetLastWin32Error().ToString(CultureInfo.InvariantCulture));
}
// Converting the data to a list that we can easily interpret.
return(oData.Select(oInfo => new ProcessorInfo(oInfo.Relationship, oInfo.Flags, oInfo.ProcessorMask)).ToList());
}
private static List<ProcessorInfo> GetProcessorInfo64()
{
// First we're going to execute GetLogicalProcessorInformation
// once to make sure that we determine the size of the data
// that it is going to return.
// This call should fail with error ERROR_INSUFFICIENT_BUFFER.
uint iReturnLength = 0;
SystemLogicalProcessorInformatioNx64[] oDummy = null;
bool bResult = GetLogicalProcessorInformation(oDummy,
ref iReturnLength);
if (bResult)
{
throw Fail("GetLogicalProcessorInformation failed.", "x64");
}
// Making sure that the error code that we got back is not
// that there is in sufficient space in the buffer.
int iError = Marshal.GetLastWin32Error();
if (iError != ErrorInsufficientBuffer)
{
throw Fail(
"Insufficient space in the buffer.",
"x64", iError.ToString());
}
// Now that we know how much space we should reserve,
// we're going to reserve it and call
// GetLogicalProcessorInformation again.
uint iBaseSize = (uint)Marshal.SizeOf(
typeof(SystemLogicalProcessorInformatioNx64));
uint iNumberOfElements = iReturnLength / iBaseSize;
SystemLogicalProcessorInformatioNx64[] oData =
new SystemLogicalProcessorInformatioNx64[iNumberOfElements];
uint iAllocatedSize = iNumberOfElements * iBaseSize;
if (!GetLogicalProcessorInformation(oData, ref iAllocatedSize))
{
throw Fail("GetLogicalProcessorInformation failed",
"x64", Marshal.GetLastWin32Error().ToString());
}
// Converting the data to a list that we can easily interpret.
List<ProcessorInfo> oList = new List<ProcessorInfo>();
foreach (SystemLogicalProcessorInformatioNx64 oInfo in oData)
{
oList.Add(new ProcessorInfo(
oInfo.Relationship,
oInfo.Flags,
oInfo.ProcessorMask));
}
return oList;
}