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tef: emit last message when worker exits

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Simon Cruanes 2023-12-07 16:15:21 -05:00
parent 721212be27
commit 079949d139
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1 changed files with 5 additions and 0 deletions
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src/tef/trace_tef.ml
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@ -328,6 +328,11 @@ let bg_thread ~out (events : event B_queue.t) : unit =
List.iter handle_ev local
done
with B_queue.Closed ->
(* write a message about us closing *)
Writer.emit_instant_event ~name:"tef-worker.exit"
~tid:(Thread.id @@ Thread.self ())
~ts:(now_us ()) ~args:[] writer;
(* warn if app didn't close all spans *)
if Span_tbl.length spans > 0 then
Printf.eprintf "trace-tef: warning: %d spans were not closed\n%!"