mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-12-27 00:55:17 +00:00
33 lines
992 B
Go
33 lines
992 B
Go
|
package internal
|
||
|
|
|
||
|
|
import (
|
||
|
|
"context"
|
||
|
|
"fmt"
|
||
|
|
"unicode/utf8"
|
||
|
|
|
||
|
|
"github.com/multiformats/go-multibase"
|
||
|
|
"go.opentelemetry.io/otel"
|
||
|
|
"go.opentelemetry.io/otel/attribute"
|
||
|
|
"go.opentelemetry.io/otel/trace"
|
||
|
|
)
|
||
|
|
|
||
|
|
func StartSpan(ctx context.Context, name string, opts ...trace.SpanStartOption) (context.Context, trace.Span) {
|
||
|
|
return otel.Tracer("go-libp2p-kad-dht").Start(ctx, fmt.Sprintf("KademliaDHT.%s", name), opts...)
|
||
|
|
}
|
||
|
|
|
||
|
|
// KeyAsAttribute format a DHT key into a suitable tracing attribute.
|
||
|
|
// DHT keys can be either valid utf-8 or binary, when they are derived from, for example, a multihash.
|
||
|
|
// Tracing (and notably OpenTelemetry+grpc exporter) requires valid utf-8 for string attributes.
|
||
|
|
func KeyAsAttribute(name string, key string) attribute.KeyValue {
|
||
|
|
b := []byte(key)
|
||
|
|
if utf8.Valid(b) {
|
||
|
|
return attribute.String(name, key)
|
||
|
|
}
|
||
|
|
encoded, err := multibase.Encode(multibase.Base58BTC, b)
|
||
|
|
if err != nil {
|
||
|
|
// should be unreachable
|
||
|
|
panic(err)
|
||
|
|
}
|
||
|
|
return attribute.String(name, encoded)
|
||
|
|
}
|