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package zipkin
import (
"sync"
"sync/atomic"
"time"
"github.com/openzipkin/zipkin-go/model"
)
type spanImpl struct {
mtx sync.RWMutex
model.SpanModel
tracer *Tracer
mustCollect int32 // used as atomic bool (1 = true, 0 = false)
flushOnFinish bool
}
func (s *spanImpl) Context() model.SpanContext {
return s.SpanContext
}
func (s *spanImpl) SetName(name string) {
s.mtx.Lock()
s.Name = name
s.mtx.Unlock()
}
func (s *spanImpl) SetRemoteEndpoint(e *model.Endpoint) {
s.mtx.Lock()
if e == nil {
s.RemoteEndpoint = nil
} else {
s.RemoteEndpoint = &model.Endpoint{}
*s.RemoteEndpoint = *e
}
s.mtx.Unlock()
}
func (s *spanImpl) Annotate(t time.Time, value string) {
a := model.Annotation{
Timestamp: t,
Value: value,
}
s.mtx.Lock()
s.Annotations = append(s.Annotations, a)
s.mtx.Unlock()
}
func (s *spanImpl) Tag(key, value string) {
s.mtx.Lock()
if key == string(TagError) {
if _, found := s.Tags[key]; found {
s.mtx.Unlock()
return
}
}
s.Tags[key] = value
s.mtx.Unlock()
}
func (s *spanImpl) Finish() {
if atomic.CompareAndSwapInt32(&s.mustCollect, 1, 0) {
s.Duration = time.Since(s.Timestamp)
if s.flushOnFinish {
s.tracer.reporter.Send(s.SpanModel)
}
}
}
func (s *spanImpl) Flush() {
if s.SpanModel.Debug || (s.SpanModel.Sampled != nil && *s.SpanModel.Sampled) {
s.tracer.reporter.Send(s.SpanModel)
}
}
|
