monitoring.h File Reference

C++20 concepts for monitoring and metric collection interfaces. More...

#include <chrono>
#include <concepts>
#include <string>
#include <string_view>
#include <type_traits>
#include <unordered_map>

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Namespaces
namespace	kcenon
namespace	kcenon::common
	Core interfaces.
namespace	kcenon::common::interfaces
namespace	kcenon::common::concepts
	C++20 concepts for compile-time type validation.

Concepts
concept	kcenon::common::concepts::CounterMetric
	A type that supports counter metric operations.
concept	kcenon::common::concepts::GaugeMetric
	A type that supports gauge metric operations.
concept	kcenon::common::concepts::HistogramMetric
	A type that supports histogram metric operations.
concept	kcenon::common::concepts::TimingMetric
	A type that supports timing metric operations.
concept	kcenon::common::concepts::MetricCollectorLike
	A complete metric collector type satisfying IMetricCollector interface.
concept	kcenon::common::concepts::NamedImplementation
	A type that provides implementation name for debugging.
concept	kcenon::common::concepts::MetricCollectorProviderLike
	A type that can provide metric collector instances.

Typedefs
using	kcenon::common::interfaces::metric_labels = std::unordered_map<std::string, std::string>
	Metric labels for dimensional data.

Detailed Description

C++20 concepts for monitoring and metric collection interfaces.

This header provides concepts for validating metric collector types used in observability operations. These concepts replace abstract class-based constraints with compile-time validation and clearer error messages.

Requirements:

• C++20 compiler with concepts support
• GCC 10+, Clang 10+, MSVC 2022+

Thread Safety:

• Concepts are evaluated at compile-time only.
• No runtime thread-safety considerations apply.

See also

metric_collector_interface.h for IMetricCollector definition

https://en.cppreference.com/w/cpp/language/constraints

Definition in file monitoring.h.