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internal/telemetry: modify *Subscriber to take timeAt

Modifies the various Subscriber signatures to take in
an "at" time.Time field, which captures the time that
a measurement was made. This field will then be used
when exporting points as their EndTime.

Fixes #34490.

Change-Id: I9e87b65e374876ae3d4df0abedb64bb7dcb221b6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/199577
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
This commit is contained in:
Emmanuel T Odeke 2019-10-06 16:49:04 -07:00 committed by Emmanuel Odeke
parent 59731289e9
commit 7667e13ae9
2 changed files with 23 additions and 12 deletions

View File

@ -8,6 +8,7 @@ package metric
import (
"context"
"sort"
"time"
"golang.org/x/tools/internal/telemetry"
"golang.org/x/tools/internal/telemetry/export"
@ -230,19 +231,23 @@ func (data *Int64Data) modify(ctx context.Context, f func(v int64) int64) {
export.Metric(ctx, &frozen)
}
func (data *Int64Data) countInt64(ctx context.Context, measure *stats.Int64Measure, value int64) {
func (data *Int64Data) countInt64(ctx context.Context, measure *stats.Int64Measure, value int64, at time.Time) {
// TODO: Use at.
data.modify(ctx, func(v int64) int64 { return v + 1 })
}
func (data *Int64Data) countFloat64(ctx context.Context, measure *stats.Float64Measure, value float64) {
func (data *Int64Data) countFloat64(ctx context.Context, measure *stats.Float64Measure, value float64, at time.Time) {
// TODO: Use at.
data.modify(ctx, func(v int64) int64 { return v + 1 })
}
func (data *Int64Data) sum(ctx context.Context, measure *stats.Int64Measure, value int64) {
func (data *Int64Data) sum(ctx context.Context, measure *stats.Int64Measure, value int64, at time.Time) {
// TODO: Use at.
data.modify(ctx, func(v int64) int64 { return v + value })
}
func (data *Int64Data) latest(ctx context.Context, measure *stats.Int64Measure, value int64) {
func (data *Int64Data) latest(ctx context.Context, measure *stats.Int64Measure, value int64, at time.Time) {
// TODO: Use at.
data.modify(ctx, func(v int64) int64 { return value })
}
@ -265,11 +270,12 @@ func (data *Float64Data) modify(ctx context.Context, f func(v float64) float64)
export.Metric(ctx, &frozen)
}
func (data *Float64Data) sum(ctx context.Context, measure *stats.Float64Measure, value float64) {
func (data *Float64Data) sum(ctx context.Context, measure *stats.Float64Measure, value float64, at time.Time) {
data.modify(ctx, func(v float64) float64 { return v + value })
}
func (data *Float64Data) latest(ctx context.Context, measure *stats.Float64Measure, value float64) {
func (data *Float64Data) latest(ctx context.Context, measure *stats.Float64Measure, value float64, at time.Time) {
// TODO: Use at.
data.modify(ctx, func(v float64) float64 { return value })
}
@ -298,7 +304,8 @@ func (data *HistogramInt64Data) modify(ctx context.Context, f func(v *HistogramI
export.Metric(ctx, &frozen)
}
func (data *HistogramInt64Data) record(ctx context.Context, measure *stats.Int64Measure, value int64) {
func (data *HistogramInt64Data) record(ctx context.Context, measure *stats.Int64Measure, value int64, at time.Time) {
// TODO: Use at.
data.modify(ctx, func(v *HistogramInt64Row) {
v.Sum += value
if v.Min > value || v.Count == 0 {
@ -341,7 +348,8 @@ func (data *HistogramFloat64Data) modify(ctx context.Context, f func(v *Histogra
export.Metric(ctx, &frozen)
}
func (data *HistogramFloat64Data) record(ctx context.Context, measure *stats.Float64Measure, value float64) {
func (data *HistogramFloat64Data) record(ctx context.Context, measure *stats.Float64Measure, value float64, at time.Time) {
// TODO: Use at.
data.modify(ctx, func(v *HistogramFloat64Row) {
v.Sum += value
if v.Min > value || v.Count == 0 {

View File

@ -9,6 +9,7 @@ package stats
import (
"context"
"time"
"golang.org/x/tools/internal/telemetry/unit"
)
@ -31,11 +32,11 @@ type Float64Measure struct {
// Int64Subscriber is the type for functions that want to listen to
// integer statistic events.
type Int64Subscriber func(context.Context, *Int64Measure, int64)
type Int64Subscriber func(ctx context.Context, im *Int64Measure, value int64, at time.Time)
// Float64Subscriber is the type for functions that want to listen to
// floating point statistic events.
type Float64Subscriber func(context.Context, *Float64Measure, float64)
type Float64Subscriber func(ctx context.Context, fm *Float64Measure, value float64, at time.Time)
// Int64 creates a new Int64Measure and prepares it for use.
func Int64(name string, description string, unit unit.Unit) *Int64Measure {
@ -69,9 +70,10 @@ func (m *Int64Measure) Subscribe(s Int64Subscriber) { m.subscribers = append(m.s
// Record delivers a new value to the subscribers of this measure.
func (m *Int64Measure) Record(ctx context.Context, value int64) {
at := time.Now()
do(func() {
for _, s := range m.subscribers {
s(ctx, m, value)
s(ctx, m, value, at)
}
})
}
@ -90,9 +92,10 @@ func (m *Float64Measure) Subscribe(s Float64Subscriber) { m.subscribers = append
// Record delivers a new value to the subscribers of this measure.
func (m *Float64Measure) Record(ctx context.Context, value float64) {
at := time.Now()
do(func() {
for _, s := range m.subscribers {
s(ctx, m, value)
s(ctx, m, value, at)
}
})
}