ocaml/test/Moretest/signals.ml

33 lines
1.1 KiB
OCaml

let rec tak (x, y, z as tuple) =
if x > y then tak(tak (x-1, y, z), tak (y-1, z, x), tak (z-1, x, y))
else z
let break_handler _ =
print_string "Thank you for pressing ctrl-C."; print_newline();
print_string "Allocating a bit..."; flush stdout;
tak(18,12,6); print_string "done."; print_newline()
let stop_handler _ =
print_string "Thank you for pressing ctrl-Z."; print_newline();
print_string "Now raising an exception..."; print_newline();
raise Exit
let _ =
Sys.signal Sys.sigint (Sys.Signal_handle break_handler);
Sys.signal Sys.sigtstp (Sys.Signal_handle stop_handler);
begin try
print_string "Computing like crazy..."; print_newline();
for i = 1 to 100 do tak(18,12,6) done;
print_string "Reading on input..."; print_newline();
for i = 1 to 5 do
try
let s = read_line () in
print_string ">> "; print_string s; print_newline()
with Exit ->
print_string "Got Exit, continuing."; print_newline()
done
with Exit ->
print_string "Got Exit, exiting."; print_newline()
end;
exit 0