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zeekayandHanzo Dev
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Source files keep their SPDX-License-Identifier and Hanzo copyright line; the Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in NOTICE, alongside LICENSE. The header lint accepts any copyright line above the SPDX line, so it no longer demands an upstream one. Co-authored-by: Hanzo Dev <[email protected]>
94 lines
2.3 KiB
Go
94 lines
2.3 KiB
Go
// Copyright 2026 Hanzo AI, Inc. All rights reserved.
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// SPDX-License-Identifier: MIT
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package gtprof
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import (
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"context"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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// "vendor span" is a simple demo for a span from a vendor library
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var vendorContextKey any = "vendorContextKey"
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type vendorSpan struct {
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name string
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children []*vendorSpan
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}
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func vendorTraceStart(ctx context.Context, name string) (context.Context, *vendorSpan) {
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span := &vendorSpan{name: name}
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parentSpan, ok := ctx.Value(vendorContextKey).(*vendorSpan)
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if ok {
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parentSpan.children = append(parentSpan.children, span)
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}
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ctx = context.WithValue(ctx, vendorContextKey, span)
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return ctx, span
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}
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// below "testTrace*" integrate the vendor span into our trace system
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type testTraceSpan struct {
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vendorSpan *vendorSpan
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}
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func (t *testTraceSpan) addEvent(name string, cfg *EventConfig) {}
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func (t *testTraceSpan) recordError(err error, cfg *EventConfig) {}
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func (t *testTraceSpan) end() {}
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type testTraceStarter struct{}
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func (t *testTraceStarter) start(ctx context.Context, traceSpan *TraceSpan, internalSpanIdx int) (context.Context, traceSpanInternal) {
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ctx, span := vendorTraceStart(ctx, traceSpan.name)
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return ctx, &testTraceSpan{span}
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}
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func TestTraceStarter(t *testing.T) {
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globalTraceStarters = []traceStarter{&testTraceStarter{}}
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ctx := t.Context()
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ctx, span := GetTracer().Start(ctx, "root")
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defer span.End()
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func(ctx context.Context) {
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ctx, span := GetTracer().Start(ctx, "span1")
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defer span.End()
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func(ctx context.Context) {
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_, span := GetTracer().Start(ctx, "spanA")
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defer span.End()
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}(ctx)
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func(ctx context.Context) {
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_, span := GetTracer().Start(ctx, "spanB")
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defer span.End()
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}(ctx)
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}(ctx)
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func(ctx context.Context) {
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_, span := GetTracer().Start(ctx, "span2")
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defer span.End()
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}(ctx)
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var spanFullNames []string
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var collectSpanNames func(parentFullName string, s *vendorSpan)
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collectSpanNames = func(parentFullName string, s *vendorSpan) {
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fullName := parentFullName + "/" + s.name
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spanFullNames = append(spanFullNames, fullName)
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for _, c := range s.children {
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collectSpanNames(fullName, c)
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}
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}
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collectSpanNames("", span.internalSpans[0].(*testTraceSpan).vendorSpan)
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assert.Equal(t, []string{
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"/root",
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"/root/span1",
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"/root/span1/spanA",
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"/root/span1/spanB",
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"/root/span2",
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}, spanFullNames)
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}
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