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https://github.com/fnproject/fn.git
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206aa3c203
* update vendor directory, add go.opencensus.io * update imports * oops * s/opentracing/opencensus/ & remove prometheus / zipkin stuff & remove old stats * the dep train rides again * fix gin build * deps from last guy * start in on the agent metrics * she builds * remove tags for now, cardinality error is fussing. subscribe instead of register * update to patched version of opencensus to proceed for now TODO switch to a release * meh fix imports * println debug the bad boys * lace it with the tags * update deps again * fix all inconsistent cardinality errors * add our own logger * fix init * fix oom measure * remove bugged removal code * fix s3 measures * fix prom handler nil
24 lines
515 B
Go
24 lines
515 B
Go
package zipkin
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import (
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"context"
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)
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// SpanFromContext retrieves a Zipkin Span from Go's context propagation
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// mechanism if found. If not found, returns nil.
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func SpanFromContext(ctx context.Context) Span {
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if s, ok := ctx.Value(spanKey).(Span); ok {
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return s
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}
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return nil
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}
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// NewContext stores a Zipkin Span into Go's context propagation mechanism.
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func NewContext(ctx context.Context, s Span) context.Context {
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return context.WithValue(ctx, spanKey, s)
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}
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type ctxKey struct{}
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var spanKey = ctxKey{}
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