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Make SpanContext Immutable (#1573)

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* Make SpanContext Immutable

* Adds NewSpanContext() constructor and SpanContextConfig{} struct for
constructing a new SpanContext when all fields are known
* Adds With<field>() methods to SpanContext for deriving a SpanContext
with a single field changed.
* Updates all uses of SpanContext to use the new API

Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>

* Update CHANGELOG.md

Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>

* Add tests for new SpanContext constructor and derivation

Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>

* Address PR feedback

* Fix new uses of SpanContext from main
This commit is contained in:
Anthony Mirabella
2021-03-09 11:17:29 -05:00
committed by GitHub
parent d75e268053
commit e88a091a72
37 changed files with 554 additions and 343 deletions
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13
sdk/trace/batch_span_processor_test.go
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@ -210,7 +210,10 @@ func generateSpan(t *testing.T, parallel bool, tr trace.Tracer, option testOptio
wg := &sync.WaitGroup{}
for i := 0; i < option.genNumSpans; i++ {
binary.BigEndian.PutUint64(sc.TraceID[0:8], uint64(i+1))
tid := sc.TraceID()
binary.BigEndian.PutUint64(tid[0:8], uint64(i+1))
newSc := sc.WithTraceID(tid)
wg.Add(1)
f := func(sc trace.SpanContext) {
ctx := trace.ContextWithRemoteSpanContext(context.Background(), sc)
@ -219,9 +222,9 @@ func generateSpan(t *testing.T, parallel bool, tr trace.Tracer, option testOptio
wg.Done()
}
if parallel {
go f(sc)
go f(newSc)
} else {
f(sc)
f(newSc)
}
}
wg.Wait()
@ -230,11 +233,11 @@ func generateSpan(t *testing.T, parallel bool, tr trace.Tracer, option testOptio
func getSpanContext() trace.SpanContext {
tid, _ := trace.TraceIDFromHex("01020304050607080102040810203040")
sid, _ := trace.SpanIDFromHex("0102040810203040")
return trace.SpanContext{
return trace.NewSpanContext(trace.SpanContextConfig{
TraceID: tid,
SpanID: sid,
TraceFlags: 0x1,
}
})
}
func TestBatchSpanProcessorShutdown(t *testing.T) {