redrawCharts sets the values held by itself as chart values, at the specified interval as redrawInterval.
(ctx context.Context)
| 40 | |
| 41 | // redrawCharts sets the values held by itself as chart values, at the specified interval as redrawInterval. |
| 42 | func (d *drawer) redrawCharts(ctx context.Context) { |
| 43 | ticker := time.NewTicker(d.redrawInterval) |
| 44 | defer ticker.Stop() |
| 45 | |
| 46 | d.chartDrawing.Store(true) |
| 47 | L: |
| 48 | for { |
| 49 | select { |
| 50 | case <-ctx.Done(): |
| 51 | break L |
| 52 | case <-ticker.C: |
| 53 | end := time.Now() |
| 54 | start := end.Add(-d.queryRange) |
| 55 | |
| 56 | latencies, err := d.storage.Select(storage.LatencyMetricName, start, end) |
| 57 | if err != nil { |
| 58 | log.Printf("failed to select latency data points: %v\n", err) |
| 59 | } |
| 60 | d.widgets.latencyChart.Series("latency", latencies, |
| 61 | linechart.SeriesCellOpts(cell.FgColor(cell.ColorNumber(87))), |
| 62 | linechart.SeriesXLabels(map[int]string{ |
| 63 | 0: "req", |
| 64 | }), |
| 65 | ) |
| 66 | |
| 67 | p50, err := d.storage.Select(storage.P50MetricName, start, end) |
| 68 | if err != nil { |
| 69 | log.Printf("failed to select p50 data points: %v\n", err) |
| 70 | } |
| 71 | d.widgets.percentilesChart.Series("p50", p50, |
| 72 | linechart.SeriesCellOpts(d.widgets.p50Legend.cellOpts...), |
| 73 | ) |
| 74 | |
| 75 | p90, err := d.storage.Select(storage.P90MetricName, start, end) |
| 76 | if err != nil { |
| 77 | log.Printf("failed to select p90 data points: %v\n", err) |
| 78 | } |
| 79 | d.widgets.percentilesChart.Series("p90", p90, |
| 80 | linechart.SeriesCellOpts(d.widgets.p90Legend.cellOpts...), |
| 81 | ) |
| 82 | |
| 83 | p95, err := d.storage.Select(storage.P95MetricName, start, end) |
| 84 | if err != nil { |
| 85 | log.Printf("failed to select p95 data points: %v\n", err) |
| 86 | } |
| 87 | d.widgets.percentilesChart.Series("p95", p95, |
| 88 | linechart.SeriesCellOpts(d.widgets.p95Legend.cellOpts...), |
| 89 | ) |
| 90 | |
| 91 | p99, err := d.storage.Select(storage.P99MetricName, start, end) |
| 92 | if err != nil { |
| 93 | log.Printf("failed to select p99 data points: %v\n", err) |
| 94 | } |
| 95 | d.widgets.percentilesChart.Series("p99", p99, |
| 96 | linechart.SeriesCellOpts(d.widgets.p99Legend.cellOpts...), |
| 97 | ) |
| 98 | } |
| 99 | } |