85 lines
2.9 KiB
C++
85 lines
2.9 KiB
C++
/*
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* PerfMetric.h
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FLOW_PERFMETRIC_H
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#define FLOW_PERFMETRIC_H
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#pragma once
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#include <vector>
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#include <string>
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#include "flow/flow.h"
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using std::vector;
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struct PerfMetric {
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constexpr static FileIdentifier file_identifier = 5980618;
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PerfMetric() : m_name(""), m_value(0), m_averaged(false), m_format_code( "%.3g" ) {}
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PerfMetric( std::string name, double value, bool averaged ) : m_name(name), m_value(value), m_averaged(averaged), m_format_code( "%.3g" ) {}
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PerfMetric( std::string name, double value, bool averaged, std::string format_code ) : m_name(name), m_value(value), m_averaged(averaged), m_format_code(format_code) {}
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std::string name() const { return m_name; }
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double value() const { return m_value; }
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std::string formatted() const { return format(m_format_code.c_str(), m_value); }
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std::string format_code() const { return m_format_code; }
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bool averaged() const { return m_averaged; }
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PerfMetric withPrefix( const std::string& pre ) { return PerfMetric(pre+name(), value(), averaged(), format_code()); }
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template <class Ar>
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void serialize( Ar& ar ) {
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serializer(ar, m_name, m_format_code, m_value, m_averaged);
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}
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private:
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std::string m_name, m_format_code;
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double m_value;
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bool m_averaged;
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};
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struct PerfIntCounter {
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PerfIntCounter(std::string name) : name(name), value(0) {}
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PerfIntCounter(std::string name, vector<PerfIntCounter*>& v) : name(name), value(0) { v.push_back(this); }
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void operator += (int64_t delta) { value += delta; }
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void operator ++ () { value += 1; }
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PerfMetric getMetric() { return PerfMetric( name, (double)value, false, "%.0lf" ); }
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int64_t getValue() { return value; }
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void clear() { value = 0; }
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private:
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std::string name;
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int64_t value;
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};
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struct PerfDoubleCounter {
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PerfDoubleCounter(std::string name) : name(name), value(0) {}
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PerfDoubleCounter(std::string name, vector<PerfDoubleCounter*>& v) : name(name), value(0) { v.push_back(this); }
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void operator += (double delta) { value += delta; }
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void operator ++ () { value += 1.0; }
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PerfMetric getMetric() { return PerfMetric( name, value, false ); }
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double getValue() { return value; }
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void clear() { value = 0.0; }
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private:
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std::string name;
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double value;
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};
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#endif
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