diff options
Diffstat (limited to 'lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow3.erl')
-rw-r--r-- | lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow3.erl | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow3.erl b/lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow3.erl new file mode 100644 index 0000000000..9c6a22eb05 --- /dev/null +++ b/lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow3.erl @@ -0,0 +1,31 @@ +%% This tests the presence of possible races due to an ets:lookup/ets:insert +%% combination. It takes into account control flow that might exist. + +-module(ets_insert_control_flow3). +-export([start/1]). + +start(User) -> + Table = ets:new(table, [public]), + mod:process(Table), + [{_, N}] = + case User of + root -> ets:lookup(Table, root); + user -> ets:lookup(Table, user); + Other -> [{undefined, -1}] + end, + case N of + -1 -> io:format("\nUnknown User\n", []); + 0 -> + case User of + root -> + ets:insert(Table, {User, Pass = generate_password(N) ++ generate_password(N+1)}); + user -> + ets:insert(Table, {User, Pass = generate_password(N)}) + end, + io:format("\nYour new pass is ~w\n", [Pass]); + P -> + io:format("\nYour pass is ~w\n", [P]) + end. + +generate_password(N) -> + lists:map(fun (_) -> random:uniform(90)+$\s+1 end, lists:seq(1,N)). |