mirror of
https://github.com/openfaas/faasd.git
synced 2025-06-28 09:43:23 +00:00
Migrate to containerd 1.54
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This commit is contained in:
committed by
Alex Ellis
parent
4c9c66812a
commit
2ae8b31ac0
187
vendor/go.opencensus.io/trace/trace.go
generated
vendored
187
vendor/go.opencensus.io/trace/trace.go
generated
vendored
@ -28,12 +28,16 @@ import (
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"go.opencensus.io/trace/tracestate"
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)
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type tracer struct{}
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var _ Tracer = &tracer{}
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// Span represents a span of a trace. It has an associated SpanContext, and
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// stores data accumulated while the span is active.
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//
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// Ideally users should interact with Spans by calling the functions in this
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// package that take a Context parameter.
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type Span struct {
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type span struct {
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// data contains information recorded about the span.
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//
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// It will be non-nil if we are exporting the span or recording events for it.
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@ -66,7 +70,7 @@ type Span struct {
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// IsRecordingEvents returns true if events are being recorded for this span.
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// Use this check to avoid computing expensive annotations when they will never
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// be used.
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func (s *Span) IsRecordingEvents() bool {
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func (s *span) IsRecordingEvents() bool {
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if s == nil {
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return false
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}
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@ -109,13 +113,13 @@ type SpanContext struct {
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type contextKey struct{}
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// FromContext returns the Span stored in a context, or nil if there isn't one.
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func FromContext(ctx context.Context) *Span {
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func (t *tracer) FromContext(ctx context.Context) *Span {
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s, _ := ctx.Value(contextKey{}).(*Span)
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return s
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}
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// NewContext returns a new context with the given Span attached.
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func NewContext(parent context.Context, s *Span) context.Context {
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func (t *tracer) NewContext(parent context.Context, s *Span) context.Context {
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return context.WithValue(parent, contextKey{}, s)
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}
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@ -166,12 +170,14 @@ func WithSampler(sampler Sampler) StartOption {
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//
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// Returned context contains the newly created span. You can use it to
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// propagate the returned span in process.
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func StartSpan(ctx context.Context, name string, o ...StartOption) (context.Context, *Span) {
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func (t *tracer) StartSpan(ctx context.Context, name string, o ...StartOption) (context.Context, *Span) {
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var opts StartOptions
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var parent SpanContext
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if p := FromContext(ctx); p != nil {
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p.addChild()
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parent = p.spanContext
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if p := t.FromContext(ctx); p != nil {
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if ps, ok := p.internal.(*span); ok {
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ps.addChild()
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}
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parent = p.SpanContext()
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}
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for _, op := range o {
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op(&opts)
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@ -180,7 +186,8 @@ func StartSpan(ctx context.Context, name string, o ...StartOption) (context.Cont
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ctx, end := startExecutionTracerTask(ctx, name)
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span.executionTracerTaskEnd = end
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return NewContext(ctx, span), span
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extSpan := NewSpan(span)
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return t.NewContext(ctx, extSpan), extSpan
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}
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// StartSpanWithRemoteParent starts a new child span of the span from the given parent.
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@ -190,7 +197,7 @@ func StartSpan(ctx context.Context, name string, o ...StartOption) (context.Cont
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//
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// Returned context contains the newly created span. You can use it to
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// propagate the returned span in process.
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func StartSpanWithRemoteParent(ctx context.Context, name string, parent SpanContext, o ...StartOption) (context.Context, *Span) {
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func (t *tracer) StartSpanWithRemoteParent(ctx context.Context, name string, parent SpanContext, o ...StartOption) (context.Context, *Span) {
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var opts StartOptions
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for _, op := range o {
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op(&opts)
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@ -198,19 +205,24 @@ func StartSpanWithRemoteParent(ctx context.Context, name string, parent SpanCont
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span := startSpanInternal(name, parent != SpanContext{}, parent, true, opts)
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ctx, end := startExecutionTracerTask(ctx, name)
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span.executionTracerTaskEnd = end
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return NewContext(ctx, span), span
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extSpan := NewSpan(span)
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return t.NewContext(ctx, extSpan), extSpan
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}
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func startSpanInternal(name string, hasParent bool, parent SpanContext, remoteParent bool, o StartOptions) *Span {
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span := &Span{}
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span.spanContext = parent
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func startSpanInternal(name string, hasParent bool, parent SpanContext, remoteParent bool, o StartOptions) *span {
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s := &span{}
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s.spanContext = parent
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cfg := config.Load().(*Config)
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if gen, ok := cfg.IDGenerator.(*defaultIDGenerator); ok {
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// lazy initialization
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gen.init()
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}
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if !hasParent {
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span.spanContext.TraceID = cfg.IDGenerator.NewTraceID()
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s.spanContext.TraceID = cfg.IDGenerator.NewTraceID()
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}
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span.spanContext.SpanID = cfg.IDGenerator.NewSpanID()
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s.spanContext.SpanID = cfg.IDGenerator.NewSpanID()
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sampler := cfg.DefaultSampler
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if !hasParent || remoteParent || o.Sampler != nil {
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@ -222,47 +234,47 @@ func startSpanInternal(name string, hasParent bool, parent SpanContext, remotePa
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if o.Sampler != nil {
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sampler = o.Sampler
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}
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span.spanContext.setIsSampled(sampler(SamplingParameters{
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s.spanContext.setIsSampled(sampler(SamplingParameters{
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ParentContext: parent,
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TraceID: span.spanContext.TraceID,
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SpanID: span.spanContext.SpanID,
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TraceID: s.spanContext.TraceID,
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SpanID: s.spanContext.SpanID,
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Name: name,
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HasRemoteParent: remoteParent}).Sample)
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}
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if !internal.LocalSpanStoreEnabled && !span.spanContext.IsSampled() {
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return span
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if !internal.LocalSpanStoreEnabled && !s.spanContext.IsSampled() {
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return s
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}
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span.data = &SpanData{
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SpanContext: span.spanContext,
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s.data = &SpanData{
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SpanContext: s.spanContext,
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StartTime: time.Now(),
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SpanKind: o.SpanKind,
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Name: name,
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HasRemoteParent: remoteParent,
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}
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span.lruAttributes = newLruMap(cfg.MaxAttributesPerSpan)
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span.annotations = newEvictedQueue(cfg.MaxAnnotationEventsPerSpan)
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span.messageEvents = newEvictedQueue(cfg.MaxMessageEventsPerSpan)
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span.links = newEvictedQueue(cfg.MaxLinksPerSpan)
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s.lruAttributes = newLruMap(cfg.MaxAttributesPerSpan)
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s.annotations = newEvictedQueue(cfg.MaxAnnotationEventsPerSpan)
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s.messageEvents = newEvictedQueue(cfg.MaxMessageEventsPerSpan)
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s.links = newEvictedQueue(cfg.MaxLinksPerSpan)
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if hasParent {
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span.data.ParentSpanID = parent.SpanID
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s.data.ParentSpanID = parent.SpanID
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}
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if internal.LocalSpanStoreEnabled {
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var ss *spanStore
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ss = spanStoreForNameCreateIfNew(name)
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if ss != nil {
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span.spanStore = ss
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ss.add(span)
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s.spanStore = ss
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ss.add(s)
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}
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}
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return span
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return s
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}
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// End ends the span.
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func (s *Span) End() {
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func (s *span) End() {
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if s == nil {
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return
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}
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@ -292,7 +304,7 @@ func (s *Span) End() {
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// makeSpanData produces a SpanData representing the current state of the Span.
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// It requires that s.data is non-nil.
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func (s *Span) makeSpanData() *SpanData {
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func (s *span) makeSpanData() *SpanData {
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var sd SpanData
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s.mu.Lock()
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sd = *s.data
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@ -317,7 +329,7 @@ func (s *Span) makeSpanData() *SpanData {
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}
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// SpanContext returns the SpanContext of the span.
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func (s *Span) SpanContext() SpanContext {
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func (s *span) SpanContext() SpanContext {
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if s == nil {
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return SpanContext{}
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}
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@ -325,7 +337,7 @@ func (s *Span) SpanContext() SpanContext {
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}
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// SetName sets the name of the span, if it is recording events.
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func (s *Span) SetName(name string) {
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func (s *span) SetName(name string) {
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if !s.IsRecordingEvents() {
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return
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}
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@ -335,7 +347,7 @@ func (s *Span) SetName(name string) {
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}
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// SetStatus sets the status of the span, if it is recording events.
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func (s *Span) SetStatus(status Status) {
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func (s *span) SetStatus(status Status) {
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if !s.IsRecordingEvents() {
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return
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}
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@ -344,32 +356,32 @@ func (s *Span) SetStatus(status Status) {
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s.mu.Unlock()
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}
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func (s *Span) interfaceArrayToLinksArray() []Link {
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linksArr := make([]Link, 0)
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func (s *span) interfaceArrayToLinksArray() []Link {
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linksArr := make([]Link, 0, len(s.links.queue))
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for _, value := range s.links.queue {
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linksArr = append(linksArr, value.(Link))
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}
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return linksArr
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}
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func (s *Span) interfaceArrayToMessageEventArray() []MessageEvent {
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messageEventArr := make([]MessageEvent, 0)
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func (s *span) interfaceArrayToMessageEventArray() []MessageEvent {
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messageEventArr := make([]MessageEvent, 0, len(s.messageEvents.queue))
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for _, value := range s.messageEvents.queue {
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messageEventArr = append(messageEventArr, value.(MessageEvent))
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}
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return messageEventArr
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}
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func (s *Span) interfaceArrayToAnnotationArray() []Annotation {
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annotationArr := make([]Annotation, 0)
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func (s *span) interfaceArrayToAnnotationArray() []Annotation {
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annotationArr := make([]Annotation, 0, len(s.annotations.queue))
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for _, value := range s.annotations.queue {
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annotationArr = append(annotationArr, value.(Annotation))
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}
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return annotationArr
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}
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func (s *Span) lruAttributesToAttributeMap() map[string]interface{} {
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attributes := make(map[string]interface{})
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func (s *span) lruAttributesToAttributeMap() map[string]interface{} {
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attributes := make(map[string]interface{}, s.lruAttributes.len())
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for _, key := range s.lruAttributes.keys() {
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value, ok := s.lruAttributes.get(key)
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if ok {
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@ -380,13 +392,13 @@ func (s *Span) lruAttributesToAttributeMap() map[string]interface{} {
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return attributes
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}
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func (s *Span) copyToCappedAttributes(attributes []Attribute) {
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func (s *span) copyToCappedAttributes(attributes []Attribute) {
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for _, a := range attributes {
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s.lruAttributes.add(a.key, a.value)
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}
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}
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func (s *Span) addChild() {
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func (s *span) addChild() {
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if !s.IsRecordingEvents() {
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return
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}
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@ -398,7 +410,7 @@ func (s *Span) addChild() {
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// AddAttributes sets attributes in the span.
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//
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// Existing attributes whose keys appear in the attributes parameter are overwritten.
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func (s *Span) AddAttributes(attributes ...Attribute) {
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func (s *span) AddAttributes(attributes ...Attribute) {
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if !s.IsRecordingEvents() {
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return
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}
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@ -407,49 +419,27 @@ func (s *Span) AddAttributes(attributes ...Attribute) {
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s.mu.Unlock()
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}
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// copyAttributes copies a slice of Attributes into a map.
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func copyAttributes(m map[string]interface{}, attributes []Attribute) {
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for _, a := range attributes {
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m[a.key] = a.value
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}
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}
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func (s *Span) lazyPrintfInternal(attributes []Attribute, format string, a ...interface{}) {
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func (s *span) printStringInternal(attributes []Attribute, str string) {
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now := time.Now()
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msg := fmt.Sprintf(format, a...)
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var m map[string]interface{}
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s.mu.Lock()
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var am map[string]interface{}
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if len(attributes) != 0 {
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m = make(map[string]interface{})
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copyAttributes(m, attributes)
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am = make(map[string]interface{}, len(attributes))
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for _, attr := range attributes {
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am[attr.key] = attr.value
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}
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}
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s.annotations.add(Annotation{
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Time: now,
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Message: msg,
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Attributes: m,
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})
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s.mu.Unlock()
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}
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func (s *Span) printStringInternal(attributes []Attribute, str string) {
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now := time.Now()
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var a map[string]interface{}
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s.mu.Lock()
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if len(attributes) != 0 {
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a = make(map[string]interface{})
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copyAttributes(a, attributes)
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}
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s.annotations.add(Annotation{
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Time: now,
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Message: str,
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Attributes: a,
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Attributes: am,
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})
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s.mu.Unlock()
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}
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// Annotate adds an annotation with attributes.
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// Attributes can be nil.
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func (s *Span) Annotate(attributes []Attribute, str string) {
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func (s *span) Annotate(attributes []Attribute, str string) {
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if !s.IsRecordingEvents() {
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return
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}
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@ -457,11 +447,11 @@ func (s *Span) Annotate(attributes []Attribute, str string) {
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}
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// Annotatef adds an annotation with attributes.
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func (s *Span) Annotatef(attributes []Attribute, format string, a ...interface{}) {
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func (s *span) Annotatef(attributes []Attribute, format string, a ...interface{}) {
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if !s.IsRecordingEvents() {
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return
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}
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s.lazyPrintfInternal(attributes, format, a...)
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s.printStringInternal(attributes, fmt.Sprintf(format, a...))
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}
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// AddMessageSendEvent adds a message send event to the span.
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@ -470,7 +460,7 @@ func (s *Span) Annotatef(attributes []Attribute, format string, a ...interface{}
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// unique in this span and the same between the send event and the receive
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// event (this allows to identify a message between the sender and receiver).
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// For example, this could be a sequence id.
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func (s *Span) AddMessageSendEvent(messageID, uncompressedByteSize, compressedByteSize int64) {
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func (s *span) AddMessageSendEvent(messageID, uncompressedByteSize, compressedByteSize int64) {
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if !s.IsRecordingEvents() {
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return
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}
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@ -492,7 +482,7 @@ func (s *Span) AddMessageSendEvent(messageID, uncompressedByteSize, compressedBy
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// unique in this span and the same between the send event and the receive
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// event (this allows to identify a message between the sender and receiver).
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// For example, this could be a sequence id.
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func (s *Span) AddMessageReceiveEvent(messageID, uncompressedByteSize, compressedByteSize int64) {
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func (s *span) AddMessageReceiveEvent(messageID, uncompressedByteSize, compressedByteSize int64) {
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if !s.IsRecordingEvents() {
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return
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}
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@ -509,7 +499,7 @@ func (s *Span) AddMessageReceiveEvent(messageID, uncompressedByteSize, compresse
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}
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// AddLink adds a link to the span.
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func (s *Span) AddLink(l Link) {
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func (s *span) AddLink(l Link) {
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if !s.IsRecordingEvents() {
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return
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}
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@ -518,7 +508,7 @@ func (s *Span) AddLink(l Link) {
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s.mu.Unlock()
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}
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func (s *Span) String() string {
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func (s *span) String() string {
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if s == nil {
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return "<nil>"
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}
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@ -534,20 +524,9 @@ func (s *Span) String() string {
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var config atomic.Value // access atomically
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func init() {
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gen := &defaultIDGenerator{}
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// initialize traceID and spanID generators.
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var rngSeed int64
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for _, p := range []interface{}{
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&rngSeed, &gen.traceIDAdd, &gen.nextSpanID, &gen.spanIDInc,
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} {
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binary.Read(crand.Reader, binary.LittleEndian, p)
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}
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gen.traceIDRand = rand.New(rand.NewSource(rngSeed))
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gen.spanIDInc |= 1
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config.Store(&Config{
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DefaultSampler: ProbabilitySampler(defaultSamplingProbability),
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IDGenerator: gen,
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IDGenerator: &defaultIDGenerator{},
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MaxAttributesPerSpan: DefaultMaxAttributesPerSpan,
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MaxAnnotationEventsPerSpan: DefaultMaxAnnotationEventsPerSpan,
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MaxMessageEventsPerSpan: DefaultMaxMessageEventsPerSpan,
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@ -571,6 +550,24 @@ type defaultIDGenerator struct {
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traceIDAdd [2]uint64
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traceIDRand *rand.Rand
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initOnce sync.Once
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}
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// init initializes the generator on the first call to avoid consuming entropy
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// unnecessarily.
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func (gen *defaultIDGenerator) init() {
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gen.initOnce.Do(func() {
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// initialize traceID and spanID generators.
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var rngSeed int64
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for _, p := range []interface{}{
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&rngSeed, &gen.traceIDAdd, &gen.nextSpanID, &gen.spanIDInc,
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} {
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binary.Read(crand.Reader, binary.LittleEndian, p)
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}
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gen.traceIDRand = rand.New(rand.NewSource(rngSeed))
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gen.spanIDInc |= 1
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})
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}
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// NewSpanID returns a non-zero span ID from a randomly-chosen sequence.
|
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|
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