Label vocabulary: Label, the sorted/deduped Labels set, name validation, and an std::hash<Labels> specialization.
More...
#include <algorithm>#include <cstddef>#include <cstdint>#include <initializer_list>#include <span>#include <string>#include <string_view>#include <utility>#include <vector>
Include dependency graph for labels.hpp:
This graph shows which files directly or indirectly include this file:
Go to the source code of this file.
Classes | |
| struct | prom::Label |
A single name="value" label pair. More... | |
| class | prom::Labels |
| An immutable-by-convention set of labels, kept sorted by name with duplicates collapsed last-wins. More... | |
| struct | std::hash< prom::Labels > |
Hash a prom::Labels by its cached FNV-1a digest so it can key the labeled child caches that adapters maintain. More... | |
Namespaces | |
| namespace | prom |
Functions | |
| constexpr bool | prom::is_valid_metric_name (std::string_view name) noexcept |
A metric name is valid when it matches Prometheus's [a-zA-Z_][a-zA-Z0-9_]*. | |
| constexpr bool | prom::is_valid_label_name (const std::string_view name) noexcept |
A label name follows the metric-name charset but additionally rejects the __ prefix, which OpenMetrics reserves for internal use. | |
Detailed Description
Label vocabulary: Label, the sorted/deduped Labels set, name validation, and an std::hash<Labels> specialization.
