15c094c7ee
Add #![deny(clippy::unwrap_used, clippy::expect_used)] to api_gateway and backtesting_service crate roots. The ml and common crates already had these deny attributes. Production code fixes: - api_gateway: replace expect with unwrap_or for cache stats and LRU eviction - api_gateway: add #[allow] on NonZeroU32 constants and Prometheus metrics - backtesting_service: replace expect/unwrap with ok_or_else/? for OHLCV bar bounds checks and chrono timestamp resampling - backtesting_service: add #[allow] on Prometheus Lazy metric statics Test code: cfg_attr(test, allow) at crate root for both crates. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
66 lines
2.1 KiB
Rust
66 lines
2.1 KiB
Rust
//! Simple Prometheus metrics for backtesting service
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//!
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//! Provides basic service metrics using the global Prometheus registry
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use once_cell::sync::Lazy;
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use prometheus::{register_counter, register_gauge, Counter, Gauge};
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// SAFETY: Prometheus metric registration panics only if duplicate names exist,
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// which is a fatal misconfiguration that should crash at startup.
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/// Service uptime in seconds
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#[allow(clippy::expect_used)]
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pub static SERVICE_UPTIME: Lazy<Gauge> = Lazy::new(|| {
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register_gauge!(
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"backtesting_service_uptime_seconds",
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"Service uptime in seconds"
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)
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.expect("Failed to register SERVICE_UPTIME metric - this is a critical initialization error")
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});
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/// Total number of backtests started
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#[allow(clippy::expect_used)]
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pub static BACKTESTS_STARTED: Lazy<Counter> = Lazy::new(|| {
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register_counter!(
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"backtesting_backtests_started_total",
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"Total number of backtests started"
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)
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.expect("Failed to register BACKTESTS_STARTED metric - this is a critical initialization error")
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});
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/// Total number of backtests completed
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#[allow(clippy::expect_used)]
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pub static BACKTESTS_COMPLETED: Lazy<Counter> = Lazy::new(|| {
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register_counter!(
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"backtesting_backtests_completed_total",
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"Total number of backtests completed"
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)
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.expect(
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"Failed to register BACKTESTS_COMPLETED metric - this is a critical initialization error",
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)
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});
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/// Total number of backtest errors
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#[allow(clippy::expect_used)]
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pub static BACKTEST_ERRORS: Lazy<Counter> = Lazy::new(|| {
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register_counter!(
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"backtesting_errors_total",
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"Total number of backtest errors"
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)
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.expect("Failed to register BACKTEST_ERRORS metric - this is a critical initialization error")
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});
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/// Initialize metrics (registers them with global registry)
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pub fn init_metrics() {
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// Force lazy initialization by accessing each metric
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let _ = &*SERVICE_UPTIME;
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let _ = &*BACKTESTS_STARTED;
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let _ = &*BACKTESTS_COMPLETED;
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let _ = &*BACKTEST_ERRORS;
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}
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/// Update service uptime metric
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pub fn update_uptime(start_time: std::time::Instant) {
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SERVICE_UPTIME.set(start_time.elapsed().as_secs_f64());
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}
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