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