Trace (opentelemetry.Opentelemetry.Trace)

type span = Span.t

val emit : span list -> unit

Sync emitter

type scope = {

trace_id : Trace_id.t;

span_id : Span_id.t;

mutable events : Event.t list;

}

Scope to be used with with_.

val add_event : scope -> ( unit -> Event.t ) -> unit

Add an event to the scope. It will be aggregated into the span.

Note that this takes a function that produces an event, and will only call it if there is an instrumentation backend.

val with_ : 
  ?trace_state:string ->
  ?service_name:string ->
  ?attrs:Span.key_value list ->
  ?kind:Span.kind ->
  ?trace_id:Trace_id.t ->
  ?parent:Span.id ->
  ?links:(Trace_id.t * Span_id.t * string) list ->
  string ->
  ( scope -> 'a ) ->
  'a

Sync span guard