46 lines
1.2 KiB
OCaml
46 lines
1.2 KiB
OCaml
(* Torture test - lots of GC *)
|
|
|
|
let gc_thread () =
|
|
while true do
|
|
(* print_string "gc"; print_newline(); *)
|
|
Gc.minor();
|
|
Thread.yield()
|
|
done
|
|
|
|
let stdin_thread () =
|
|
while true do
|
|
print_string "> "; flush stdout;
|
|
let s = read_line() in
|
|
print_string ">>> "; print_string s; print_newline()
|
|
done
|
|
|
|
let writer_thread (oc, size) =
|
|
while true do
|
|
(* print_string "writer "; print_int size; print_newline(); *)
|
|
let buff = String.make size 'a' in
|
|
Unix.write oc buff 0 size
|
|
done
|
|
|
|
let reader_thread (ic, size) =
|
|
while true do
|
|
(* print_string "reader "; print_int size; print_newline(); *)
|
|
let buff = String.create size in
|
|
let n = Unix.read ic buff 0 size in
|
|
(* print_string "reader "; print_int n; print_newline(); *)
|
|
for i = 0 to n-1 do
|
|
if buff.[i] <> 'a' then prerr_endline "error in reader_thread"
|
|
done
|
|
done
|
|
|
|
let main() =
|
|
Thread.create gc_thread ();
|
|
let (out1, in1) = Unix.pipe() in
|
|
Thread.create writer_thread (in1, 4096);
|
|
Thread.create reader_thread (out1, 4096);
|
|
let (out2, in2) = Unix.pipe() in
|
|
Thread.create writer_thread (in2, 16);
|
|
Thread.create reader_thread (out2, 16);
|
|
stdin_thread()
|
|
|
|
let _ = main()
|