Пример #1
0
func showStats(db *bolt.DB) {
	// Grab the initial stats.
	prev := db.Stats()

	for {
		// Wait for 10s.
		time.Sleep(10 * time.Second)

		// Grab the current stats and diff them.
		stats := db.Stats()
		diff := stats.Sub(&prev)

		// Encode stats to JSON and print to STDERR.
		json.NewEncoder(os.Stderr).Encode(diff)

		// Save stats for the next loop.
		prev = stats
	}
}
Пример #2
0
// Continuously prints stats on the database at given intervals.
func printStats(db *bolt.DB, interval time.Duration) {
	var prevStats = db.Stats()
	var encoder = json.NewEncoder(os.Stdout)

	for {
		// Wait for the stats interval.
		time.Sleep(interval)

		// Retrieve new stats and find difference from previous iteration.
		var stats = db.Stats()
		var diff = stats.Sub(&prevStats)

		// Print as JSON to STDOUT.
		if err := encoder.Encode(diff); err != nil {
			fatal(err)
		}

		// Save stats for next iteration.
		prevStats = stats
	}
}