diff options
Diffstat (limited to 'erts/emulator/test')
| -rw-r--r-- | erts/emulator/test/nif_SUITE.erl | 23 | ||||
| -rw-r--r-- | erts/emulator/test/nif_SUITE_data/nif_SUITE.c | 23 |
2 files changed, 43 insertions, 3 deletions
diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl index 5c82a01bd1..370363bf9e 100644 --- a/erts/emulator/test/nif_SUITE.erl +++ b/erts/emulator/test/nif_SUITE.erl @@ -35,7 +35,9 @@ resource_takeover/1, threading/1, send/1, send2/1, send3/1, send_threaded/1, neg/1, is_checks/1, - get_length/1, make_atom/1, make_string/1, reverse_list_test/1]). + get_length/1, make_atom/1, make_string/1, reverse_list_test/1, + otp_9668/1 + ]). -export([many_args_100/100]). @@ -60,7 +62,9 @@ all() -> iolist_as_binary, resource, resource_binary, resource_takeover, threading, send, send2, send3, send_threaded, neg, is_checks, get_length, make_atom, - make_string,reverse_list_test]. + make_string,reverse_list_test, + otp_9668 + ]. groups() -> []. @@ -1236,6 +1240,20 @@ reverse_list_test(Config) -> ?line RevList = reverse_list(List), ?line badarg = reverse_list(foo). +otp_9668(doc) -> ["Memory leak of tmp-buffer when inspecting iolist or unaligned binary in unbound environment"]; +otp_9668(Config) -> + ensure_lib_loaded(Config, 1), + TmpMem = tmpmem(), + IOList = ["This",' ',<<"is">>,' ',[<<"an iolist">>,'.']], + otp_9668_nif(IOList), + + <<_:5/bitstring,UnalignedBin:10/binary,_/bitstring>> = <<"Abuse me as unaligned">>, + otp_9668_nif(UnalignedBin), + + ?line verify_tmpmem(TmpMem), + ok. + + tmpmem() -> case erlang:system_info({allocator,temp_alloc}) of false -> undefined; @@ -1345,6 +1363,7 @@ send_term(_,_) -> ?nif_stub. reverse_list(_) -> ?nif_stub. echo_int(_) -> ?nif_stub. type_sizes() -> ?nif_stub. +otp_9668_nif(_) -> ?nif_stub. nif_stub_error(Line) -> exit({nif_not_loaded,module,?MODULE,line,Line}). diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c index 35f54d62c5..7d7903af25 100644 --- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c +++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c @@ -1431,6 +1431,26 @@ static ERL_NIF_TERM reverse_list(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar return rev_list; } +static ERL_NIF_TERM otp_9668_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + /* Inspect in process independent env */ + ErlNifEnv* myenv = enif_alloc_env(); + ERL_NIF_TERM mycopy = enif_make_copy(myenv, argv[0]); + ErlNifBinary obin, cbin; + + if ((enif_inspect_binary(env, argv[0], &obin) + && enif_inspect_binary(myenv, mycopy, &cbin)) + || + (enif_inspect_iolist_as_binary(env, argv[0], &obin) + && enif_inspect_iolist_as_binary(myenv, mycopy, &cbin))) + { + assert(obin.size == cbin.size); + assert(memcmp(obin.data, cbin.data, obin.size) == 0); + } + enif_free_env(myenv); + return atom_ok; +} + static ErlNifFunc nif_funcs[] = { {"lib_version", 0, lib_version}, @@ -1478,7 +1498,8 @@ static ErlNifFunc nif_funcs[] = {"send_term", 2, send_term}, {"reverse_list",1, reverse_list}, {"echo_int", 1, echo_int}, - {"type_sizes", 0, type_sizes} + {"type_sizes", 0, type_sizes}, + {"otp_9668_nif", 1, otp_9668_nif} }; ERL_NIF_INIT(nif_SUITE,nif_funcs,load,reload,upgrade,unload) |