mirror of
https://github.com/juspay/hyperswitch.git
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66 lines
2.7 KiB
Rust
66 lines
2.7 KiB
Rust
//! Utilities to easily create opentelemetry contexts, meters and metrics.
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/// Create a metrics [`Context`][Context] with the specified name.
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///
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/// [Context]: opentelemetry::Context
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#[macro_export]
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macro_rules! metrics_context {
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($name:ident) => {
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pub(crate) static $name: once_cell::sync::Lazy<$crate::opentelemetry::Context> =
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once_cell::sync::Lazy::new($crate::opentelemetry::Context::current);
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};
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}
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/// Create a global [`Meter`][Meter] with the specified name and and an optional description.
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///
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/// [Meter]: opentelemetry::metrics::Meter
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#[macro_export]
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macro_rules! global_meter {
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($name:ident) => {
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static $name: once_cell::sync::Lazy<$crate::opentelemetry::metrics::Meter> =
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once_cell::sync::Lazy::new(|| $crate::opentelemetry::global::meter(stringify!($name)));
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};
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($name:ident, $description:literal) => {
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static $name: once_cell::sync::Lazy<$crate::opentelemetry::metrics::Meter> =
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once_cell::sync::Lazy::new(|| $crate::opentelemetry::global::meter($description));
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};
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}
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/// Create a [`Counter`][Counter] metric with the specified name and an optional description,
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/// associated with the specified meter. Note that the meter must be to a valid [`Meter`][Meter].
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///
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/// [Counter]: opentelemetry::metrics::Counter
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/// [Meter]: opentelemetry::metrics::Meter
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#[macro_export]
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macro_rules! counter_metric {
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($name:ident, $meter:ident) => {
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pub(crate) static $name: once_cell::sync::Lazy<
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$crate::opentelemetry::metrics::Counter<u64>,
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> = once_cell::sync::Lazy::new(|| $meter.u64_counter(stringify!($name)).init());
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};
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($name:ident, $meter:ident, description:literal) => {
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pub(crate) static $name: once_cell::sync::Lazy<
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$crate::opentelemetry::metrics::Counter<u64>,
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> = once_cell::sync::Lazy::new(|| $meter.u64_counter($description).init());
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};
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}
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/// Create a [`Histogram`][Histogram] metric with the specified name and an optional description,
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/// associated with the specified meter. Note that the meter must be to a valid [`Meter`][Meter].
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///
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/// [Histogram]: opentelemetry::metrics::Histogram
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/// [Meter]: opentelemetry::metrics::Meter
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#[macro_export]
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macro_rules! histogram_metric {
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($name:ident, $meter:ident) => {
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pub(crate) static $name: once_cell::sync::Lazy<
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$crate::opentelemetry::metrics::Histogram<f64>,
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> = once_cell::sync::Lazy::new(|| $meter.f64_histogram(stringify!($name)).init());
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};
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($name:ident, $meter:ident, $description:literal) => {
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pub(crate) static $name: once_cell::sync::Lazy<
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$crate::opentelemetry::metrics::Histogram<f64>,
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> = once_cell::sync::Lazy::new(|| $meter.f64_histogram($description).init());
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};
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}
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