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author | Stavros Aronis <[email protected]> | 2011-04-02 18:57:42 +0300 |
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committer | Henrik Nord <[email protected]> | 2011-05-04 15:06:15 +0200 |
commit | ca4633fd683527097451ca1398c90c87bb5c14fc (patch) | |
tree | 3d8e18c9becd4feb7d3ceb1eed24bdce2ef69dd6 /lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow5.erl | |
parent | bc619f0cbf9555df6dfc44a499f0cd9cee8bd1be (diff) | |
download | otp-ca4633fd683527097451ca1398c90c87bb5c14fc.tar.gz otp-ca4633fd683527097451ca1398c90c87bb5c14fc.tar.bz2 otp-ca4633fd683527097451ca1398c90c87bb5c14fc.zip |
Rename suite data directories
Diffstat (limited to 'lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow5.erl')
-rw-r--r-- | lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow5.erl | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow5.erl b/lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow5.erl new file mode 100644 index 0000000000..b19fd776ec --- /dev/null +++ b/lib/dialyzer/test/race_SUITE_data/src/ets_insert_control_flow5.erl @@ -0,0 +1,34 @@ +%% 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_flow5). +-export([start/1]). + +start(User) -> + Table = ets:new(table, [public]), + mod:process(Table), + [{_, N}] = + case User of + root -> ets:lookup(Table, pass); + user -> ets:lookup(Table, pass); + Other -> [{undefined, -1}] + end, + [{_, Msg}] = ets:lookup(Table, welcome_msg), + case N of + -1 -> io:format("\nUnknown User\n", []); + 0 -> + case User of + root -> + ets:insert(Table, {welcome_msg, Msg ++ "root"}), + ets:insert(Table, {pass, Pass = generate_password(N) ++ generate_password(N+1)}); + user -> + ets:insert(Table, {welcome_msg, Msg ++ "user"}), + ets:insert(Table, {pass, 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)). |