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84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
//
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// ProcessCollector.h
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//
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// Library: Prometheus
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// Package: Collectors
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// Module: ProcessCollector
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//
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// Definition of the ProcessCollector class.
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//
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// Copyright (c) 2022, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Prometheus_ProcessCollector_INCLUDED
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#define Prometheus_ProcessCollector_INCLUDED
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#include "Poco/Prometheus/Collector.h"
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#include "Poco/Prometheus/CallbackMetric.h"
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#include "Poco/Timestamp.h"
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#include <memory>
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#include <vector>
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namespace Poco {
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namespace Prometheus {
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class Prometheus_API ProcessCollector: public Collector
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/// This Collector provides process-specific metrics:
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/// - process_cpu_seconds_total: Total user and system CPU time spent in seconds.
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/// - process_max_fds: Maximum number of open file descriptors.
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/// - process_start_time_seconds: Start time of the process since unix epoch in seconds
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/// (actually, the time the Prometheus library was loaded).
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/// - process_up_time_seconds: Up time of the process in seconds
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/// (actually, time since the Prometheus library was loaded).
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{
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public:
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ProcessCollector();
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/// Creates a default ProcessCollector.
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ProcessCollector(const std::string& name, Registry* pRegistry);
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/// Creates a custom ProcessCollector with the given name (prefix)
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/// and registers it with the given Registry.
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~ProcessCollector() = default;
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/// Destroys the ProcessCollector.
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static Poco::Timestamp startTime();
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/// Returns the process start time.
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// Collector
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void exportTo(Exporter& exporter) const override;
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/// Writes the given Metric to the Exporter.
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protected:
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void buildMetrics();
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private:
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using MetricPtr = std::unique_ptr<Metric>;
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std::vector<MetricPtr> _metrics;
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static Poco::Timestamp _startTime;
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};
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//
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// inlines
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//
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inline Poco::Timestamp ProcessCollector::startTime()
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{
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return _startTime;
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}
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} } // namespace Poco::Prometheus
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#endif // Prometheus_ProcessCollector_INCLUDED
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