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(* TEST
flags = "-g"
ocamlrunparam += ",b=1"
* hassysthreads
include systhreads
** bytecode
** native
*)
(* Testing if uncaught exception handlers are behaving properly *)
let () = Printexc.record_backtrace true
exception UncaughtHandlerExn
exception CallbackExn
let handler final_exn exn =
let id = Thread.self () |> Thread.id in
let msg = Printexc.to_string exn in
Printf.eprintf "[thread %d] caught %s\n" id msg;
Printexc.print_backtrace stderr;
flush stderr;
raise final_exn
let fn () = Printexc.raise_with_backtrace
CallbackExn
(Printexc.get_raw_backtrace ())
let _ =
let th = Thread.create fn () in
Thread.join th;
Thread.set_uncaught_exception_handler (handler UncaughtHandlerExn);
let th = Thread.create fn () in
Thread.join th;
Thread.set_uncaught_exception_handler (handler Thread.Exit);
let th = Thread.create fn () in
Thread.join th
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