43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
// Package tracer provides an interface for distributed tracing
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package tracer // import "go.unistack.org/micro/v4/tracer"
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import (
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"context"
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)
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// DefaultTracer is the global default tracer
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var DefaultTracer = NewTracer()
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// Tracer is an interface for distributed tracing
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type Tracer interface {
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// Name return tracer name
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Name() string
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// Init tracer with options
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Init(...Option) error
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// Start a trace
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Start(ctx context.Context, name string, opts ...SpanOption) (context.Context, Span)
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}
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type Span interface {
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// Tracer return underlining tracer
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Tracer() Tracer
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// Finish complete and send span
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Finish(opts ...SpanOption)
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// AddEvent add event to span
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AddEvent(name string, opts ...EventOption)
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// Context return context with span
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Context() context.Context
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// SetName set the span name
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SetName(name string)
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// SetStatus set the span status code and msg
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SetStatus(status SpanStatus, msg string)
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// Status returns span status and msg
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Status() (SpanStatus, string)
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// SetLabels set the span labels
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SetLabels(labels ...interface{})
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// AddLabels append the span labels
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AddLabels(labels ...interface{})
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// Kind returns span kind
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Kind() SpanKind
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}
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