// awaitScanComplete waits for a folder to transition idle->scanning and
// then scanning->idle and returns the time taken for the scan.
func awaitScanComplete(p *rc.Process) time.Duration {
log.Println("Awaiting scan completion...")
var t0, t1 time.Time
lastEvent := 0
loop:
for {
evs, err := p.Events(lastEvent)
if err != nil {
continue
}
for _, ev := range evs {
if ev.Type == "StateChanged" {
data := ev.Data.(map[string]interface{})
log.Println(ev)
if data["to"].(string) == "scanning" {
t0 = ev.Time
continue
}
if !t0.IsZero() && data["to"].(string) == "idle" {
t1 = ev.Time
break loop
}
}
lastEvent = ev.ID
}
time.Sleep(250 * time.Millisecond)
}
return t1.Sub(t0)
}
// report stops the given process and reports on it's resource usage in two
// ways: human readable to stderr, and CSV to stdout.
func report(p *rc.Process, wallTime time.Duration) {
sv, err := p.SystemVersion()
if err != nil {
log.Println(err)
return
}
ss, err := p.SystemStatus()
if err != nil {
log.Println(err)
return
}
proc, err := p.Stop()
if err != nil {
return
}
rusage, ok := proc.SysUsage().(*syscall.Rusage)
if !ok {
return
}
log.Println("Version:", sv.Version)
log.Println("Alloc:", ss.Alloc/1024, "KiB")
log.Println("Sys:", ss.Sys/1024, "KiB")
log.Println("Goroutines:", ss.Goroutines)
log.Println("Wall time:", wallTime)
log.Println("Utime:", time.Duration(rusage.Utime.Nano()))
log.Println("Stime:", time.Duration(rusage.Stime.Nano()))
if runtime.GOOS == "darwin" {
// Darwin reports in bytes, Linux seems to report in KiB even
// though the manpage says otherwise.
rusage.Maxrss /= 1024
}
log.Println("MaxRSS:", rusage.Maxrss, "KiB")
fmt.Printf("%s,%d,%d,%d,%.02f,%.02f,%.02f,%d\n",
sv.Version,
ss.Alloc/1024,
ss.Sys/1024,
ss.Goroutines,
wallTime.Seconds(),
time.Duration(rusage.Utime.Nano()).Seconds(),
time.Duration(rusage.Stime.Nano()).Seconds(),
rusage.Maxrss)
}
func checkedStop(t *testing.T, p *rc.Process) {
if _, err := p.Stop(); err != nil {
t.Fatal(err)
}
}