func NewRoundTripStats(m *memmetrics.RTMetrics) (*RoundTripStats, error) {
codes := m.StatusCodesCounts()
sc := make([]StatusCode, 0, len(codes))
for k, v := range codes {
if v != 0 {
sc = append(sc, StatusCode{Code: k, Count: v})
}
}
h, err := m.LatencyHistogram()
if err != nil {
return nil, err
}
return &RoundTripStats{
Counters: Counters{
NetErrors: m.NetworkErrorCount(),
Total: m.TotalCount(),
Period: m.CounterWindowSize(),
StatusCodes: sc,
},
LatencyBrackets: NewBrackets(h),
}, nil
}