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Add the following counters to the healthcheck JSON response: - sessions: current active session count (from DB) - clients: current connected client count (from DB) - queuedLines: total entries in client output queues (from DB) - channels: current channel count (from DB) - connectionsSinceBoot: total client connections since server start - sessionsSinceBoot: total sessions created since server start - messagesSinceBoot: total PRIVMSG/NOTICE messages since server start Implementation: - New internal/stats package with atomic counters for boot-scoped metrics - New DB queries GetClientCount and GetQueueEntryCount - Healthcheck.Healthcheck() now accepts context for DB queries - Counter increments in session creation, registration, login, and messaging - Stats tracker wired via Uber fx dependency injection - Unit tests for stats package (100% coverage) and integration tests - README updated with full healthcheck response documentation closes #74
53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
// Package stats tracks runtime statistics since server boot.
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package stats
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import (
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"sync/atomic"
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)
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// Tracker holds atomic counters for runtime statistics
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// that accumulate since the server started.
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type Tracker struct {
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connectionsSinceBoot atomic.Int64
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sessionsSinceBoot atomic.Int64
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messagesSinceBoot atomic.Int64
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}
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// New creates a new Tracker with all counters at zero.
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func New() *Tracker {
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return &Tracker{} //nolint:exhaustruct // atomic fields have zero-value defaults
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}
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// IncrConnections increments the total connection count.
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func (t *Tracker) IncrConnections() {
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t.connectionsSinceBoot.Add(1)
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}
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// IncrSessions increments the total session count.
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func (t *Tracker) IncrSessions() {
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t.sessionsSinceBoot.Add(1)
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}
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// IncrMessages increments the total PRIVMSG/NOTICE count.
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func (t *Tracker) IncrMessages() {
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t.messagesSinceBoot.Add(1)
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}
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// ConnectionsSinceBoot returns the total number of
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// client connections since boot.
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func (t *Tracker) ConnectionsSinceBoot() int64 {
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return t.connectionsSinceBoot.Load()
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}
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// SessionsSinceBoot returns the total number of sessions
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// created since boot.
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func (t *Tracker) SessionsSinceBoot() int64 {
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return t.sessionsSinceBoot.Load()
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}
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// MessagesSinceBoot returns the total number of
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// PRIVMSG/NOTICE messages sent since boot.
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func (t *Tracker) MessagesSinceBoot() int64 {
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return t.messagesSinceBoot.Load()
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}
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