simon/ocaml-opentelemetry
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feat(curl-client): block some signals in background thread(s)

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Simon Cruanes 2022-03-30 11:53:19 -04:00
parent 8f2a666a70
commit 6722c49bb0
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1 changed files with 10 additions and 3 deletions
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13
src/client/opentelemetry_client_ocurl.ml
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@ -285,6 +285,14 @@ let mk_push (type a) ?batch () : (module PUSH with type elt = a) * (on_full_cb -
in in
push, ((:=) on_full) push, ((:=) on_full)
(* start a thread in the background, running [f()] *)
let start_bg_thread (f: unit -> unit) : unit =
let run() =
(* block some signals: USR1 USR2 TERM PIPE ALARM STOP, see [$ kill -L] *)
ignore (Thread.sigmask Unix.SIG_BLOCK [10; 12; 13; 14; 15; 19] : _ list);
f()
in
ignore (Thread.create run () : Thread.t)
(* make an emitter. (* make an emitter.
@ -417,7 +425,7 @@ let mk_emitter ~(config:Config.t) () : (module EMITTER) =
C.cleanup(); C.cleanup();
end end
in in
let _th_process_batches: Thread.t = Thread.create bg_thread () in start_bg_thread bg_thread;
let wakeup () = let wakeup () =
with_mutex_ m (fun () -> Condition.signal cond); with_mutex_ m (fun () -> Condition.signal cond);
@ -441,8 +449,7 @@ let mk_emitter ~(config:Config.t) () : (module EMITTER) =
done done
in in
let _th_ticker : Thread.t = Thread.create tick_thread () in start_bg_thread tick_thread;
()
); );
let module M = struct let module M = struct