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#!/usr/bin/env escript
%% -*- erlang -*-
%%! -pa test -pa ../lager/ebin -pa ../lager/deps/goldrush/ebin -s lager -config test/check.config
-mode(compile).
testinit(Filename) ->
{ok, _Pid} = leveldb:start_link(testdb, Filename).
teststop() ->
leveldb:stop(testdb).
testget(_Filename, TestData, Datasize) ->
getvalue_loop(TestData, none, Datasize),
ok.
testadd(_Filename, TestData, Datasize) ->
addvalue_loop(TestData, none, Datasize),
case leveldb:commit(testdb) of
<<0>> ->
ok;
Other ->
io:format("commit expected: 0 got: ~p~n", [Other]),
exit(mismatch)
end.
stop() ->
teststop(),
receive
after
100 ->
ok
end.
gentestdata(Size) ->
[{crypto:hash(sha256, <<E:32, 0:32>>), crypto:hash(sha256, <<E:32, 1:32>>)} || E <- lists:seq(0, Size-1)].
genemptytestdata(Size) ->
[{crypto:hash(sha256, <<E:32, 0:32>>), noentry} || E <- lists:seq(0, Size-1)].
timeprint(Time) ->
io_lib:format("~.2fs", [Time/1000000]).
constructdata(VSeed, Size) ->
A = binary:copy(VSeed, Size div 32),
B = binary:part(VSeed, 0, Size rem 32),
<<A/binary, B/binary>>.
getvalue_loop([], _Port, _Datasize) ->
none;
getvalue_loop([{K, VSeed}|Rest], Port, Datasize) ->
V = case VSeed of
noentry ->
noentry;
_ ->
constructdata(VSeed, Datasize)
end,
case leveldb:getvalue(testdb, K) of
V ->
getvalue_loop(Rest, Port, Datasize);
VOther ->
io:format("expected: ~p got: ~p~nkey: ~p~n", [V, VOther, K]),
exit(mismatch)
end.
addvalue_loop([], _Port, _Datasize) ->
none;
addvalue_loop([{K, VSeed}|Rest], Port, Datasize) ->
V = constructdata(VSeed, Datasize),
case leveldb:addvalue(testdb, K, V) of
ok ->
addvalue_loop(Rest, Port, Datasize);
Other ->
io:format("expected: 0 or 1 got: ~p~n", [Other]),
exit(mismatch)
end.
remove_db(Dir) ->
case file:list_dir(Dir) of
{ok, List} ->
lists:foreach(fun(File) ->
ok = file:delete(filename:join(Dir, File)) end,
List),
ok = file:del_dir(Dir);
_ ->
ok
end.
main([]) ->
{ok, Cwd} = file:get_cwd(),
code:add_path(Cwd ++ "/ebin"),
Size = 10,
Datasize = 99,
Filename = "testleveldb",
remove_db(Filename),
{Time1, TestData} = timer:tc(fun () -> gentestdata(Size) end),
EmptyTestData = genemptytestdata(Size),
io:format("Init with ~p entries: ~s~n", [Size, timeprint(Time1)]),
testinit(Filename),
Testadd = fun () ->
{Time2, ok} = timer:tc(fun () -> testadd(Filename, TestData, Datasize) end),
io:format("Add ~p entries: ~s ~.1f entries/s (~.2f microseconds)~n", [Size, timeprint(Time2), Size*1000000/Time2, Time2/Size])
end,
Testadd(),
Testget = fun () ->
{Time2, ok} = timer:tc(fun () -> testget(Filename, TestData, Datasize) end),
io:format("Get ~p entries: ~s ~.1f entries/s (~.2f microseconds)~n", [Size, timeprint(Time2), Size*1000000/Time2, Time2/Size])
end,
Testget(),
stop(),
io:format("------------------------------------------------------------~n", []),
remove_db(Filename),
testinit(Filename),
Testemptyget = fun () ->
{Time2, ok} = timer:tc(fun () -> testget(Filename, EmptyTestData, Datasize) end),
io:format("Get ~p entries: ~s ~.1f entries/s (~.2f microseconds)~n", [Size, timeprint(Time2), Size*1000000/Time2, Time2/Size])
end,
Testemptyget(),
testadd(Filename, gentestdata(1), 99),
testadd(Filename, gentestdata(1+2), 99),
testadd(Filename, gentestdata(1+2+3), 99),
testadd(Filename, gentestdata(1+2+3+4), 99),
testget(Filename, gentestdata(1+2+3+4), 99),
stop(),
testinit(Filename),
testget(Filename, gentestdata(1+2+3+4), 99),
stop(),
ok.
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