perfdata.c

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    if (Index < ProcessCount)
        SessionId = pPerfData[Index].SessionId;
    else
        SessionId = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return SessionId;
}

ULONG PerfDataGetCPUUsage(ULONG Index)
{
    ULONG    CpuUsage;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        CpuUsage = pPerfData[Index].CPUUsage;
    else
        CpuUsage = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return CpuUsage;
}

LARGE_INTEGER PerfDataGetCPUTime(ULONG Index)
{
    LARGE_INTEGER    CpuTime = {{0,0}};

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        CpuTime = pPerfData[Index].CPUTime;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return CpuTime;
}

ULONG PerfDataGetWorkingSetSizeBytes(ULONG Index)
{
    ULONG    WorkingSetSizeBytes;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        WorkingSetSizeBytes = pPerfData[Index].WorkingSetSizeBytes;
    else
        WorkingSetSizeBytes = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return WorkingSetSizeBytes;
}

ULONG PerfDataGetPeakWorkingSetSizeBytes(ULONG Index)
{
    ULONG    PeakWorkingSetSizeBytes;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        PeakWorkingSetSizeBytes = pPerfData[Index].PeakWorkingSetSizeBytes;
    else
        PeakWorkingSetSizeBytes = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return PeakWorkingSetSizeBytes;
}

ULONG PerfDataGetWorkingSetSizeDelta(ULONG Index)
{
    ULONG    WorkingSetSizeDelta;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        WorkingSetSizeDelta = pPerfData[Index].WorkingSetSizeDelta;
    else
        WorkingSetSizeDelta = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return WorkingSetSizeDelta;
}

ULONG PerfDataGetPageFaultCount(ULONG Index)
{
    ULONG    PageFaultCount;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        PageFaultCount = pPerfData[Index].PageFaultCount;
    else
        PageFaultCount = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return PageFaultCount;
}

ULONG PerfDataGetPageFaultCountDelta(ULONG Index)
{
    ULONG    PageFaultCountDelta;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        PageFaultCountDelta = pPerfData[Index].PageFaultCountDelta;
    else
        PageFaultCountDelta = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return PageFaultCountDelta;
}

ULONG PerfDataGetVirtualMemorySizeBytes(ULONG Index)
{
    ULONG    VirtualMemorySizeBytes;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        VirtualMemorySizeBytes = pPerfData[Index].VirtualMemorySizeBytes;
    else
        VirtualMemorySizeBytes = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return VirtualMemorySizeBytes;
}

ULONG PerfDataGetPagedPoolUsagePages(ULONG Index)
{
    ULONG    PagedPoolUsage;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        PagedPoolUsage = pPerfData[Index].PagedPoolUsagePages;
    else
        PagedPoolUsage = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return PagedPoolUsage;
}

ULONG PerfDataGetNonPagedPoolUsagePages(ULONG Index)
{
    ULONG    NonPagedPoolUsage;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        NonPagedPoolUsage = pPerfData[Index].NonPagedPoolUsagePages;
    else
        NonPagedPoolUsage = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return NonPagedPoolUsage;
}

ULONG PerfDataGetBasePriority(ULONG Index)
{
    ULONG    BasePriority;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        BasePriority = pPerfData[Index].BasePriority;
    else
        BasePriority = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return BasePriority;
}

ULONG PerfDataGetHandleCount(ULONG Index)
{
    ULONG    HandleCount;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        HandleCount = pPerfData[Index].HandleCount;
    else
        HandleCount = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return HandleCount;
}

ULONG PerfDataGetThreadCount(ULONG Index)
{
    ULONG    ThreadCount;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        ThreadCount = pPerfData[Index].ThreadCount;
    else
        ThreadCount = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return ThreadCount;
}

ULONG PerfDataGetUSERObjectCount(ULONG Index)
{
    ULONG    USERObjectCount;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        USERObjectCount = pPerfData[Index].USERObjectCount;
    else
        USERObjectCount = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return USERObjectCount;
}

ULONG PerfDataGetGDIObjectCount(ULONG Index)
{
    ULONG    GDIObjectCount;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
        GDIObjectCount = pPerfData[Index].GDIObjectCount;
    else
        GDIObjectCount = 0;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return GDIObjectCount;
}

BOOL PerfDataGetIOCounters(ULONG Index, PIO_COUNTERS pIoCounters)
{
    BOOL    bSuccessful;

    EnterCriticalSection(&PerfDataCriticalSection);

    if (Index < ProcessCount)
    {
        memcpy(pIoCounters, &pPerfData[Index].IOCounters, sizeof(IO_COUNTERS));
        bSuccessful = TRUE;
    }
    else
        bSuccessful = FALSE;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return bSuccessful;
}

ULONG PerfDataGetCommitChargeTotalK(void)
{
    ULONG    Total;
    ULONG    PageSize;

    EnterCriticalSection(&PerfDataCriticalSection);

    Total = SystemPerfInfo.CommittedPages;
    PageSize = SystemBasicInfo.PageSize;

    LeaveCriticalSection(&PerfDataCriticalSection);

    Total = Total * (PageSize / 1024);

    return Total;
}

ULONG PerfDataGetCommitChargeLimitK(void)
{
    ULONG    Limit;
    ULONG    PageSize;

    EnterCriticalSection(&PerfDataCriticalSection);

    Limit = SystemPerfInfo.CommitLimit;
    PageSize = SystemBasicInfo.PageSize;

    LeaveCriticalSection(&PerfDataCriticalSection);

    Limit = Limit * (PageSize / 1024);

    return Limit;
}

ULONG PerfDataGetCommitChargePeakK(void)
{
    ULONG    Peak;
    ULONG    PageSize;

    EnterCriticalSection(&PerfDataCriticalSection);

    Peak = SystemPerfInfo.PeakCommitment;
    PageSize = SystemBasicInfo.PageSize;

    LeaveCriticalSection(&PerfDataCriticalSection);

    Peak = Peak * (PageSize / 1024);

    return Peak;
}

ULONG PerfDataGetKernelMemoryTotalK(void)
{
    ULONG    Total;
    ULONG    Paged;
    ULONG    NonPaged;
    ULONG    PageSize;

    EnterCriticalSection(&PerfDataCriticalSection);

    Paged = SystemPerfInfo.PagedPoolPages;
    NonPaged = SystemPerfInfo.NonPagedPoolPages;
    PageSize = SystemBasicInfo.PageSize;

    LeaveCriticalSection(&PerfDataCriticalSection);

    Paged = Paged * (PageSize / 1024);
    NonPaged = NonPaged * (PageSize / 1024);

    Total = Paged + NonPaged;

    return Total;
}

ULONG PerfDataGetKernelMemoryPagedK(void)
{
    ULONG    Paged;
    ULONG    PageSize;

    EnterCriticalSection(&PerfDataCriticalSection);

    Paged = SystemPerfInfo.PagedPoolPages;
    PageSize = SystemBasicInfo.PageSize;

    LeaveCriticalSection(&PerfDataCriticalSection);

    Paged = Paged * (PageSize / 1024);

    return Paged;
}

ULONG PerfDataGetKernelMemoryNonPagedK(void)
{
    ULONG    NonPaged;
    ULONG    PageSize;

    EnterCriticalSection(&PerfDataCriticalSection);

    NonPaged = SystemPerfInfo.NonPagedPoolPages;
    PageSize = SystemBasicInfo.PageSize;

    LeaveCriticalSection(&PerfDataCriticalSection);

    NonPaged = NonPaged * (PageSize / 1024);

    return NonPaged;
}

ULONG PerfDataGetPhysicalMemoryTotalK(void)
{
    ULONG    Total;
    ULONG    PageSize;

    EnterCriticalSection(&PerfDataCriticalSection);

    Total = SystemBasicInfo.NumberOfPhysicalPages;
    PageSize = SystemBasicInfo.PageSize;

    LeaveCriticalSection(&PerfDataCriticalSection);

    Total = Total * (PageSize / 1024);

    return Total;
}

ULONG PerfDataGetPhysicalMemoryAvailableK(void)
{
    ULONG    Available;
    ULONG    PageSize;

    EnterCriticalSection(&PerfDataCriticalSection);

    Available = SystemPerfInfo.AvailablePages;
    PageSize = SystemBasicInfo.PageSize;

    LeaveCriticalSection(&PerfDataCriticalSection);

    Available = Available * (PageSize / 1024);

    return Available;
}

ULONG PerfDataGetPhysicalMemorySystemCacheK(void)
{
    ULONG    SystemCache;
    ULONG    PageSize;

    EnterCriticalSection(&PerfDataCriticalSection);

    PageSize = SystemBasicInfo.PageSize;
    SystemCache = SystemCacheInfo.CurrentSizeIncludingTransitionInPages * PageSize;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return SystemCache / 1024;
}

ULONG PerfDataGetSystemHandleCount(void)
{
    ULONG    HandleCount;

    EnterCriticalSection(&PerfDataCriticalSection);

    HandleCount = SystemHandleInfo.NumberOfHandles;

    LeaveCriticalSection(&PerfDataCriticalSection);

    return HandleCount;
}

ULONG PerfDataGetTotalThreadCount(void)
{
    ULONG    ThreadCount = 0;
    ULONG    i;

    EnterCriticalSection(&PerfDataCriticalSection);

    for (i=0; i<ProcessCount; i++)
    {
        ThreadCount += pPerfData[i].ThreadCount;
    }

    LeaveCriticalSection(&PerfDataCriticalSection);

    return ThreadCount;
}