SubprocessMetrics

Struct SubprocessMetrics 

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pub struct SubprocessMetrics { /* private fields */ }
Expand description

Subprocess metrics recorder.

Tracks subprocess lifecycle including:

  • Restart counts by reason
  • Current uptime
  • Start time tracking

Maintains local state for (stats subprocess) display while also emitting to the metrics crate facade for external monitoring.

§Usage

use oxur_repl::metrics::{SubprocessMetrics, RestartReason};

let mut metrics = SubprocessMetrics::new();

// Record process start
metrics.process_started();

// On subprocess death, record reason
metrics.record_restart(RestartReason::ErrorExit(1));

// Get current uptime
let uptime = metrics.uptime_seconds();

// Get snapshot for display
let snapshot = metrics.snapshot();

Implementations§

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impl SubprocessMetrics

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pub fn new() -> Self

Create a new SubprocessMetrics instance.

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pub fn process_started(&mut self)

Record that the subprocess has started.

Resets the uptime tracking and updates the repl.subprocess.uptime_seconds gauge.

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pub fn record_restart(&mut self, reason: RestartReason)

Record a subprocess restart with the given reason.

Increments repl.subprocess.restarts_total counter with reason label.

§Arguments
  • reason - The categorized reason for the restart
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pub fn uptime_seconds(&self) -> f64

Get the current uptime in seconds.

Returns 0.0 if the subprocess hasn’t been started.

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pub fn update_uptime_gauge(&self)

Update the uptime gauge with the current value.

Should be called periodically to keep the gauge current.

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pub fn restart_count(&self) -> u64

Get the total restart count.

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pub fn last_restart_reason(&self) -> Option<RestartReason>

Get the last restart reason.

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pub fn is_running(&self) -> bool

Check if the subprocess is currently running.

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pub fn snapshot(&self) -> SubprocessMetricsSnapshot

Get a snapshot of current metrics for display.

Trait Implementations§

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impl Debug for SubprocessMetrics

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for SubprocessMetrics

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fn default() -> Self

Returns the “default value” for a type. Read more

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