diff options
Diffstat (limited to 'lib/dialyzer/test/race_SUITE_data/src/ets_insert_diff_atoms_race5.erl')
| -rw-r--r-- | lib/dialyzer/test/race_SUITE_data/src/ets_insert_diff_atoms_race5.erl | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/dialyzer/test/race_SUITE_data/src/ets_insert_diff_atoms_race5.erl b/lib/dialyzer/test/race_SUITE_data/src/ets_insert_diff_atoms_race5.erl new file mode 100644 index 0000000000..dd53387c11 --- /dev/null +++ b/lib/dialyzer/test/race_SUITE_data/src/ets_insert_diff_atoms_race5.erl @@ -0,0 +1,22 @@ +%% This tests that the race condition detection between ets:lookup/ +%% ets:insert is robust even when the functions are called with +%% different atoms as arguments. + +-module(ets_insert_diff_atoms_race5). +-export([test/0]). + +test() -> + ets:new(foo, [named_table, public]), + {race(foo, counter), no_race(foo, counter)}. + +race(Tab, Counter) -> + [{_, N}] = ets:lookup(Tab, Counter), + aux(Tab, Counter, N). + +no_race(Tab, Counter) -> + [{_, N}] = ets:lookup(Tab, Counter), + AnotherCounter = index, + aux(Tab, AnotherCounter, N). + +aux(Table, Counter, N) -> + ets:insert(Table, [{Counter, N+1}]). |