ocaml-containers/tests/thread/t_lock.ml
2022-07-02 14:47:03 -04:00

53 lines
1.6 KiB
OCaml

module Test = (val Containers_testlib.make ~__FILE__())
open Test;;
open CCLock;;
t @@ fun () ->
let l = create 0 in
let try_incr l =
update l (fun x -> Thread.yield(); x+1)
in
for _i = 1 to 10 do ignore (Thread.create try_incr l) done;
Thread.delay 0.10 ;
assert_equal 10 (get l);
true;;
t @@ fun () ->
let l = create 0 in
let test_it l =
with_lock_as_ref l
~f:(fun r ->
(* increment and decrement *)
for j = 0 to 100 do
let x = LockRef.get r in
LockRef.set r (x+10);
if j mod 5=0 then Thread.yield ();
let y = LockRef.get r in
LockRef.set r (y - 10);
done
)
in
for _i = 1 to 100 do ignore (Thread.create test_it l) done;
Thread.delay 0.10;
0 =get l;;
t @@ fun () -> let l = create 5 in update l (fun x->x+1); get l = 6;;
t @@ fun () -> let l = create 5 in update_map l (fun x->x+1, string_of_int x) = "5" && get l = 6;;
t @@ fun () -> let l = create 0 in set l 4; get l = 4;;
t @@ fun () -> let l = create 0 in set l 4; set l 5; get l = 5;;
t @@ fun () ->
let l = create 0 in
let a = Array.init 100 (fun _ -> Thread.create (fun _ -> incr l) ()) in
Array.iter Thread.join a;
assert_equal ~printer:CCInt.to_string 100 (get l);
true;;
t @@ fun () -> let l = create 0 in incr l ; get l = 1;;
t @@ fun () -> let l = create 0 in decr l ; get l = ~-1;;
t @@ fun () -> let l = create 0 in 1 = incr_then_get l && 1 = get l;;
t @@ fun () -> let l = create 0 in 0 = get_then_incr l && 1 = get l;;
t @@ fun () -> let l = create 10 in 9 = decr_then_get l && 9 = get l;;
t @@ fun () -> let l = create 10 in 10 = get_then_decr l && 9 = get l;;