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author | Micael Karlberg <[email protected]> | 2011-03-17 12:19:57 +0100 |
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committer | Micael Karlberg <[email protected]> | 2011-03-17 12:19:57 +0100 |
commit | 6b1d1ab0a27e9ed08a626e18319beb91d0a0d5ce (patch) | |
tree | 82e54daec07390bb4cad8b279e0e8d1fd0170b78 /lib/dialyzer/test/race_tests_SUITE_data/src/mnesia_diff_atoms_race2.erl | |
parent | 4f42486c2f94860c1aa8152562760b6a2aa7c5cb (diff) | |
parent | f861b4fdb3fd39e35f2951c53a73b30a98c7f973 (diff) | |
download | otp-6b1d1ab0a27e9ed08a626e18319beb91d0a0d5ce.tar.gz otp-6b1d1ab0a27e9ed08a626e18319beb91d0a0d5ce.tar.bz2 otp-6b1d1ab0a27e9ed08a626e18319beb91d0a0d5ce.zip |
Merge branch 'dev' into bmk/inets/ftp/missing_spec_causes_dialyxer_problems/OTP-9114
Also fixed a bunch of "end-years" (was 2010 but should have been 2011,
which the commit hook not happy with).
Diffstat (limited to 'lib/dialyzer/test/race_tests_SUITE_data/src/mnesia_diff_atoms_race2.erl')
-rw-r--r-- | lib/dialyzer/test/race_tests_SUITE_data/src/mnesia_diff_atoms_race2.erl | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/dialyzer/test/race_tests_SUITE_data/src/mnesia_diff_atoms_race2.erl b/lib/dialyzer/test/race_tests_SUITE_data/src/mnesia_diff_atoms_race2.erl new file mode 100644 index 0000000000..e92405a673 --- /dev/null +++ b/lib/dialyzer/test/race_tests_SUITE_data/src/mnesia_diff_atoms_race2.erl @@ -0,0 +1,37 @@ +%% This tests that the race condition detection between mnesia:dirty_read/ +%% mnesia:dirty_write is robust even when the functions are called with +%% different atoms as arguments. + +-module(mnesia_diff_atoms_race2). +-export([test/2]). + +-record(employee, {emp_no, + name, + salary, + sex, + phone, + room_no}). + +-record(employer, {emp_no, + name, + salary, + sex, + phone, + room_no}). + +test(Eno, Raise) -> + {race(employee, Eno, Raise), no_race(employee, Eno, Raise)}. + +race(Tab, Eno, Raise) -> + [E] = mnesia:dirty_read(Tab, Eno), + Salary = E#employee.salary + Raise, + New = E#employee{salary = Salary}, + aux(New). + +no_race(Tab, Eno, Raise) -> + [E] = mnesia:dirty_read(Tab, Eno), + AnotherRecord = #employer{}, + aux(AnotherRecord). + +aux(Record) -> + mnesia:dirty_write(Record). |