Exemplos de IsSuccessSeverity em C++ (Cpp)

Exemplo n.º 1

Arquivo: LoadMonitor.cpp Projeto: aknow/gecko-dev

nsresult WinProcMon::QuerySystemLoad(float* load_percent)
{
  *load_percent = 0;

  if (mQuery == 0) {
    return NS_ERROR_FAILURE;
  }

  // Update all counters associated with this query object.
  PDH_STATUS status = PdhCollectQueryData(mQuery);

  if (status != ERROR_SUCCESS) {
    LOG(("PdhCollectQueryData error = %X", status));
    return NS_ERROR_FAILURE;
  }

  PDH_FMT_COUNTERVALUE counter;
  // maximum is 100% regardless of CPU core count.
  status = PdhGetFormattedCounterValue(
               mCounter,
               PDH_FMT_DOUBLE,
               (LPDWORD)NULL,
               &counter);

  if (ERROR_SUCCESS != status ||
      // There are multiple success return values.
      !IsSuccessSeverity(counter.CStatus)) {
    LOG(("PdhGetFormattedCounterValue error"));
    return NS_ERROR_FAILURE;
  }

  // The result is a percent value, reduce to match expected scale.
  *load_percent = (float)(counter.doubleValue / 100.0f);
  return NS_OK;
}

Exemplo n.º 2

Arquivo: calcfuns.c Projeto: mingpen/OpenNT

double
PdhiCalcAverage (
    PPDH_RAW_COUNTER            pThisValue,
    PPDH_RAW_COUNTER            pLastValue,
    LONGLONG                    *pllTimeBase,
    LPDWORD                     pdwStatus
)
{
    LONGLONG    llNumDiff;
    LONGLONG    llDenDiff;
    double      dNum;
    double      dDen;
    double      dReturn = 0.0f;
    DWORD       dwStatus = PDH_CSTATUS_VALID_DATA;

    // test access to the required second parameter (lastValue)
    __try {

        if (IsSuccessSeverity(pLastValue->CStatus)) {
            llDenDiff = pThisValue->SecondValue - pLastValue->SecondValue;
        } else {
            dwStatus = pLastValue->CStatus;
        }
    } __except (EXCEPTION_EXECUTE_HANDLER) {
        dwStatus = PDH_INVALID_ARGUMENT;
    }

    if (dwStatus == PDH_CSTATUS_VALID_DATA) {
        if ((llDenDiff > 0) && (*pllTimeBase > 0)) {
            llNumDiff = pThisValue->FirstValue - pLastValue->FirstValue;

            dNum = (double)llNumDiff / (double)*pllTimeBase;
            dDen = (double)llDenDiff;

            dReturn = (dNum / dDen);
        } else {
            if (llDenDiff < 0) {
                dwStatus = PDH_CALC_NEGATIVE_DENOMINATOR;
            } else if (*pllTimeBase < 0) {
                dwStatus = PDH_CALC_NEGATIVE_TIMEBASE;
            }
        }
    }

    if (pdwStatus != NULL) {
        *pdwStatus = dwStatus;
    }
    return dReturn;
}

Exemplo n.º 3

Arquivo: calcfuns.c Projeto: mingpen/OpenNT

double
PdhiCalcInverseTimer (
    PPDH_RAW_COUNTER            pThisValue,
    PPDH_RAW_COUNTER            pLastValue,
    LONGLONG                    *pllTimeBase,
    LPDWORD                     pdwStatus
)
{
    LONGLONG    llNumDiff;
    LONGLONG    llDenDiff;
    double      dReturn;
    DWORD       dwStatus = PDH_CSTATUS_VALID_DATA;

    // test access to the required second parameter (lastValue)
    __try {
        if (IsSuccessSeverity(pLastValue->CStatus)) {
            llDenDiff = pThisValue->SecondValue - pLastValue->SecondValue;
        } else {
            dwStatus = pLastValue->CStatus;
        }
    } __except (EXCEPTION_EXECUTE_HANDLER) {
        dwStatus = PDH_INVALID_ARGUMENT;
    }

    if (dwStatus == PDH_CSTATUS_VALID_DATA) {

        if (llDenDiff > 0) {
            llNumDiff = pThisValue->FirstValue - pLastValue->FirstValue;

            dReturn = (double)pThisValue->MultiCount -
                    ((double)llNumDiff / (double)llDenDiff);
        } else {
            if (llDenDiff < 0) {
                dwStatus = PDH_CALC_NEGATIVE_DENOMINATOR;
            }
            dReturn = (double)0.0;
        }
    }

    if (pdwStatus != NULL) {
        *pdwStatus = dwStatus;
    }
    return dReturn;
}