Method Update

collector/bcache_linux.go:57–73

Update reads and exposes bcache stats. It implements the Collector interface.

(ch chan<- prometheus.Metric)

// Update reads and exposes bcache stats.
// It implements the Collector interface.
func (c *bcacheCollector) Update(ch chan<- prometheus.Metric) error {
	var stats []*bcache.Stats
	var err error
	if *priorityStats {
		stats, err = c.fs.Stats()
	} else {
		stats, err = c.fs.StatsWithoutPriority()
	}
	if err != nil {
		return fmt.Errorf("failed to retrieve bcache stats: %w", err)
	}

	for _, s := range stats {
		c.updateBcacheStats(ch, s)
	}
	return nil
}

type bcacheMetric struct {
	name            string