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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "valuemetric.h"
#include "memoryconsumption.h"
#include <vespa/vespalib/util/exceptions.h>
#include <vespa/vespalib/util/stringfmt.h>
#include <sstream>
namespace metrics {
template<typename AvgVal, typename TotVal, bool SumOnAdd>
ValueMetric<AvgVal, TotVal, SumOnAdd>::ValueMetric(
const String& name, const Tags dimensions,
const String& description, MetricSet* owner)
: AbstractValueMetric(name, std::move(dimensions), description, owner),
_values()
{}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
ValueMetric<AvgVal, TotVal, SumOnAdd>::ValueMetric(const ValueMetric<AvgVal, TotVal, SumOnAdd>& other, MetricSet* owner)
: AbstractValueMetric(other, owner),
_values(other._values)
{}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
ValueMetric<AvgVal, TotVal, SumOnAdd>::~ValueMetric() = default;
template<typename AvgVal, typename TotVal, bool SumOnAdd>
void ValueMetric<AvgVal, TotVal, SumOnAdd>::inc(AvgVal incVal)
{
if (!checkFinite(incVal, std::is_floating_point<AvgVal>())) {
return;
}
Values values;
do {
values = _values.getValues();
AvgVal val = values._last + incVal;
++values._count;
values._total += val;
if (val < values._min) values._min = val;
if (val > values._max) values._max = val;
values._last = val;
} while (!_values.setValues(values));
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
void ValueMetric<AvgVal, TotVal, SumOnAdd>::dec(AvgVal decVal)
{
if (!checkFinite(decVal, std::is_floating_point<AvgVal>())) {
return;
}
Values values;
do {
values = _values.getValues();
AvgVal val = values._last - decVal;
++values._count;
values._total += val;
if (val < values._min) values._min = val;
if (val > values._max) values._max = val;
values._last = val;
} while (!_values.setValues(values));
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
void
ValueMetric<AvgVal, TotVal, SumOnAdd>::addToSnapshot(Metric& other, std::vector<Metric::UP> &) const
{
auto & o = reinterpret_cast<ValueMetric<AvgVal, TotVal, SumOnAdd>&>(other);
if (_values.getValues()._count == 0) return; // Don't add if not set
o.add(_values.getValues(), false);
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
void
ValueMetric<AvgVal, TotVal, SumOnAdd>::addToPart(Metric& other) const
{
auto & o = reinterpret_cast<ValueMetric<AvgVal, TotVal, SumOnAdd>&>(other);
o.add(_values.getValues(), SumOnAdd);
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
void
ValueMetric<AvgVal, TotVal, SumOnAdd>::add(const Values& values2, bool sumOnAdd)
{
bool overflow;
Values values;
do {
values = _values.getValues();
overflow = values._count > values._count + values2._count
|| (values2._total >= 0
? values._total > values._total + values2._total
: values._total < values._total + values2._total);
if (values._count == 0) {
values = values2;
} else if (values2._count == 0) {
// Do nothing
} else if (sumOnAdd) {
double totalAverage
= static_cast<double>(values._total) / values._count
+ static_cast<double>(values2._total) / values2._count;
values._count += values2._count;
values._total = static_cast<TotVal>(totalAverage * values._count);
values._last += values2._last;
_values.setFlag(SUMMED_AVERAGE);
} else {
values._count += values2._count;
values._total += values2._total;
values._last = values2._last;
}
if (values._min > values2._min) values._min = values2._min;
if (values._max < values2._max) values._max = values2._max;
} while (!_values.setValues(values));
if (overflow) {
_values.reset();
logWarning("Overflow", "add");
}
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
void
ValueMetric<AvgVal, TotVal, SumOnAdd>::dec(const Values& values2)
{
bool underflow;
Values values;
do {
values = _values.getValues();
underflow = values._count < values._count - values2._count
|| values._total < values._total - values2._total;
values._count -= values2._count;
values._total -= values2._total;
} while (!_values.setValues(values));
if (underflow) {
_values.reset();
logWarning("Underflow", "dec");
}
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
void ValueMetric<AvgVal, TotVal, SumOnAdd>::addValueWithCount(
AvgVal avg, TotVal tot, uint32_t count, AvgVal min, AvgVal max)
{
if (!checkFinite(avg, std::is_floating_point<AvgVal>())) {
return;
}
Values values;
do {
values = _values.getValues();
values._count += count;
values._total += tot;
if (min < values._min) values._min = min;
if (max > values._max) values._max = max;
values._last = avg;
} while (!_values.setValues(values));
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
ValueMetric<AvgVal, TotVal, SumOnAdd>&
ValueMetric<AvgVal, TotVal, SumOnAdd>::operator+=(
const ValueMetric<AvgVal, TotVal, SumOnAdd>& other)
{
add(other._values.getValues(), SumOnAdd);
return *this;
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
double
ValueMetric<AvgVal, TotVal, SumOnAdd>::getAverage() const
{
Values values(_values.getValues());
if (values._count == 0) return 0;
return static_cast<double>(values._total) / values._count;
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
void
ValueMetric<AvgVal, TotVal, SumOnAdd>::print(
std::ostream& out, bool verbose, const std::string& indent,
uint64_t secondsPassed) const
{
(void) indent;
(void) secondsPassed;
Values values(_values.getValues());
if (!inUse(values) && !verbose) return;
out << this->getName() << " average=" << (values._count == 0
? 0 : static_cast<double>(values._total) / values._count)
<< " last=" << values._last;
if (!summedAverage()) {
if (values._count > 0) {
out << " min=" << values._min << " max=" << values._max;
}
out << " count=" << values._count << " total=" << values._total;
}
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
int64_t
ValueMetric<AvgVal, TotVal, SumOnAdd>::getLongValue(stringref id) const
{
Values values(_values.getValues());
if (id == "last" || (SumOnAdd && id == "value"))
return static_cast<int64_t>(values._last);
if (id == "average" || (!SumOnAdd && id == "value"))
return static_cast<int64_t>(getAverage());
if (id == "count") return static_cast<int64_t>(values._count);
if (id == "total") return static_cast<int64_t>(values._total);
if (id == "min") return static_cast<int64_t>(
values._count > 0 ? values._min : 0);
if (id == "max") return static_cast<int64_t>(
values._count > 0 ? values._max : 0);
throw vespalib::IllegalArgumentException(
"No value " + id + " in average metric.", VESPA_STRLOC);
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
double
ValueMetric<AvgVal, TotVal, SumOnAdd>::getDoubleValue(stringref id) const
{
Values values(_values.getValues());
if (id == "last" || (SumOnAdd && id == "value"))
return static_cast<double>(values._last);
if (id == "average" || (!SumOnAdd && id == "value"))
return getAverage();
if (id == "count") return static_cast<double>(values._count);
if (id == "total") return static_cast<double>(values._total);
if (id == "min") return static_cast<double>(values._count > 0 ? values._min : 0);
if (id == "max") return static_cast<double>(values._count > 0 ? values._max : 0);
throw vespalib::IllegalArgumentException(
"No value " + vespalib::string(id) + " in average metric.", VESPA_STRLOC);
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
void
ValueMetric<AvgVal, TotVal, SumOnAdd>::addMemoryUsage(MemoryConsumption& mc) const
{
++mc._valueMetricCount;
mc._valueMetricMeta += sizeof(ValueMetric<AvgVal, TotVal, SumOnAdd>) - sizeof(Metric);
Metric::addMemoryUsage(mc);
}
template<typename AvgVal, typename TotVal, bool SumOnAdd>
void
ValueMetric<AvgVal, TotVal, SumOnAdd>::printDebug(
std::ostream& out, const std::string& indent) const
{
Values values(_values.getValues());
out << "value=" << values._last << " ";
Metric::printDebug(out, indent);
}
} // metrics
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