mirror of https://gitee.com/bigwinds/arangodb
114 lines
2.6 KiB
C++
114 lines
2.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2019 ArangoDB GmbH, Cologne, Germany
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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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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Kaveh Vahedipour
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////////////////////////////////////////////////////////////////////////////////
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#include "Metrics.h"
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#include "Logger/LogMacros.h"
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#include "Logger/Logger.h"
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#include "Basics/debugging.h"
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#include <type_traits>
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using namespace arangodb;
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std::ostream& operator<< (std::ostream& o, Metrics::counter_type const& s) {
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o << s.load();
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return o;
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}
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std::ostream& operator<< (std::ostream& o, Counter const& s) {
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o << s.load();
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return o;
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}
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std::ostream& operator<< (std::ostream& o, Metrics::hist_type const& v) {
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o << "[";
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for (size_t i = 0; i < v.size(); ++i) {
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if (i > 0) { o << ", "; }
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o << v.load(i);
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}
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o << "]";
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return o;
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}
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Metric::Metric(std::string const& name, std::string const& help)
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: _name(name), _help(help) {};
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Metric::~Metric() {}
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std::string const& Metric::help() const { return _help; }
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std::string const& Metric::name() const { return _name; }
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Counter& Counter::operator++() {
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count();
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return *this;
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}
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Counter& Counter::operator++(int n) {
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count(1);
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return *this;
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}
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Counter& Counter::operator+=(uint64_t const& n) {
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count(n);
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return *this;
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}
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Counter& Counter::operator=(uint64_t const& n) {
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store(n);
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return *this;
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}
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void Counter::count() {
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++_b;
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}
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void Counter::count(uint64_t n) {
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_b += n;
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}
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std::ostream& Counter::print(std::ostream& o) const {
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o << _c;
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return o;
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}
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uint64_t Counter::load() const {
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_b.push();
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return _c.load();
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}
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void Counter::store(uint64_t const& n) {
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_c.exchange(n);
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}
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void Counter::toPrometheus(std::string& result) const {
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_b.push();
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result += "#TYPE " + name() + " counter\n";
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result += "#HELP " + name() + " " + help() + "\n";
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result += name() + " " + std::to_string(load()) + "\n";
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}
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Counter::Counter(
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uint64_t const& val, std::string const& name, std::string const& help) :
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Metric(name, help), _c(val), _b(_c) {}
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Counter::~Counter() { _b.push(); }
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