diff options
Diffstat (limited to 'erts/emulator/test')
| -rw-r--r-- | erts/emulator/test/alloc_SUITE.erl | 142 | ||||
| -rw-r--r-- | erts/emulator/test/alloc_SUITE_data/allocator_test.h | 5 | ||||
| -rw-r--r-- | erts/emulator/test/alloc_SUITE_data/migration.c | 112 | ||||
| -rw-r--r-- | erts/emulator/test/binary_SUITE.erl | 1 | ||||
| -rw-r--r-- | erts/emulator/test/efile_SUITE.erl | 21 | ||||
| -rw-r--r-- | erts/emulator/test/iovec_SUITE.erl | 46 | ||||
| -rw-r--r-- | erts/emulator/test/nif_SUITE.erl | 30 |
7 files changed, 281 insertions, 76 deletions
diff --git a/erts/emulator/test/alloc_SUITE.erl b/erts/emulator/test/alloc_SUITE.erl index 5e5cd6f578..88ff2a7a92 100644 --- a/erts/emulator/test/alloc_SUITE.erl +++ b/erts/emulator/test/alloc_SUITE.erl @@ -31,6 +31,7 @@ mseg_clear_cache/1, erts_mmap/1, cpool/1, + set_dyn_param/1, migration/1]). -include_lib("common_test/include/ct.hrl"). @@ -41,6 +42,7 @@ suite() -> all() -> [basic, coalesce, threads, realloc_copy, bucket_index, + set_dyn_param, bucket_mask, rbtree, mseg_clear_cache, erts_mmap, cpool, migration]. init_per_testcase(Case, Config) when is_list(Config) -> @@ -65,7 +67,11 @@ mseg_clear_cache(Cfg) -> drv_case(Cfg). cpool(Cfg) -> drv_case(Cfg). migration(Cfg) -> - drv_case(Cfg, concurrent, "+MZe true"). + %% Enable test_alloc. + %% Disable driver_alloc to avoid recursive alloc_util calls + %% through enif_mutex_create() in my_creating_mbc(). + drv_case(Cfg, concurrent, "+MZe true +MRe false"), + drv_case(Cfg, concurrent, "+MZe true +MRe false +MZas ageffcbf"). erts_mmap(Config) when is_list(Config) -> case {os:type(), mmsc_flags()} of @@ -110,7 +116,7 @@ erts_mmap_do(Config, SCO, SCRPM, SCRFSD) -> 0 -> O1; _ -> O1 ++ " +MMscrfsd"++integer_to_list(SCRFSD) end, - {ok, Node} = start_node(Config, Opts), + {ok, Node} = start_node(Config, Opts, []), Self = self(), Ref = make_ref(), F = fun() -> @@ -140,6 +146,82 @@ erts_mmap_do(Config, SCO, SCRPM, SCRFSD) -> Result. +%% Test erlang:system_flag(erts_alloc, ...) +set_dyn_param(_Config) -> + {_, _, _, AlcList} = erlang:system_info(allocator), + + {Enabled, Disabled, Others} = + lists:foldl(fun({sys_alloc,_}, {Es, Ds, Os}) -> + {Es, [sys_alloc | Ds], Os}; + + ({AT, Opts}, {Es, Ds, Os}) when is_list(Opts) -> + case lists:keyfind(e, 1, Opts) of + {e, true} -> + {[AT | Es], Ds, Os}; + {e, false} -> + {Es, [AT | Ds], Os}; + false -> + {Es, Ds, [AT | Os]} + end; + + (_, Acc) -> Acc + end, + {[], [], []}, + AlcList), + + Param = sbct, + lists:foreach(fun(AT) -> set_dyn_param_enabled(AT, Param) end, + Enabled), + + lists:foreach(fun(AT) -> + Tpl = {AT, Param, 12345}, + io:format("~p\n", [Tpl]), + notsup = erlang:system_flag(erts_alloc, Tpl) + end, + Disabled), + + lists:foreach(fun(AT) -> + Tpl = {AT, Param, 12345}, + io:format("~p\n", [Tpl]), + {'EXIT',{badarg,_}} = + (catch erlang:system_flag(erts_alloc, Tpl)) + end, + Others), + ok. + +set_dyn_param_enabled(AT, Param) -> + OldVal = get_alc_param(AT, Param), + + Val1 = OldVal div 2, + Tuple = {AT, Param, Val1}, + io:format("~p\n", [Tuple]), + ok = erlang:system_flag(erts_alloc, Tuple), + Val1 = get_alc_param(AT, Param), + + ok = erlang:system_flag(erts_alloc, {AT, Param, OldVal}), + OldVal = get_alc_param(AT, Param), + ok. + +get_alc_param(AT, Param) -> + lists:foldl(fun({instance,_,Istats}, Acc) -> + {options,Opts} = lists:keyfind(options, 1, Istats), + {Param,Val} = lists:keyfind(Param, 1, Opts), + {as,Strategy} = lists:keyfind(as, 1, Opts), + + case {param_for_strat(Param, Strategy), Acc} of + {false, _} -> Acc; + {true, undefined} -> Val; + {true, _} -> + Val = Acc + end + end, + undefined, + erlang:system_info({allocator, AT})). + +param_for_strat(sbct, gf) -> false; +param_for_strat(_, _) -> true. + + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% %% %% Internal functions %% @@ -151,7 +233,9 @@ drv_case(Config) -> drv_case(Config, Mode, NodeOpts) when is_list(Config) -> case os:type() of {Family, _} when Family == unix; Family == win32 -> - {ok, Node} = start_node(Config, NodeOpts), + %%Prog = {prog,"/my/own/otp/bin/cerl -debug"}, + Prog = [], + {ok, Node} = start_node(Config, NodeOpts, Prog), Self = self(), Ref = make_ref(), spawn_link(Node, @@ -217,19 +301,35 @@ wait_for_memory_deallocations() -> end. print_stats(migration) -> - {Btot,Ctot} = lists:foldl(fun({instance,Inr,Istats}, {Bacc,Cacc}) -> - {mbcs,MBCS} = lists:keyfind(mbcs, 1, Istats), - Btup = lists:keyfind(blocks, 1, MBCS), - Ctup = lists:keyfind(carriers, 1, MBCS), - io:format("{instance,~p,~p,~p}\n", [Inr, Btup, Ctup]), - {tuple_add(Bacc,Btup),tuple_add(Cacc,Ctup)}; - (_, Acc) -> Acc - end, - {{blocks,0,0,0},{carriers,0,0,0}}, - erlang:system_info({allocator,test_alloc})), - + IFun = fun({instance,Inr,Istats}, {Bacc,Cacc,Pacc}) -> + {mbcs,MBCS} = lists:keyfind(mbcs, 1, Istats), + Btup = lists:keyfind(blocks, 1, MBCS), + Ctup = lists:keyfind(carriers, 1, MBCS), + + Ptup = case lists:keyfind(mbcs_pool, 1, Istats) of + {mbcs_pool,POOL} -> + {blocks, Bpool} = lists:keyfind(blocks, 1, POOL), + {carriers, Cpool} = lists:keyfind(carriers, 1, POOL), + {pool, Bpool, Cpool}; + false -> + {pool, 0, 0} + end, + io:format("{instance,~p,~p,~p,~p}}\n", + [Inr, Btup, Ctup, Ptup]), + {tuple_add(Bacc,Btup),tuple_add(Cacc,Ctup), + tuple_add(Pacc,Ptup)}; + (_, Acc) -> Acc + end, + + {Btot,Ctot,Ptot} = lists:foldl(IFun, + {{blocks,0,0,0},{carriers,0,0,0},{pool,0,0}}, + erlang:system_info({allocator,test_alloc})), + + {pool, PBtot, PCtot} = Ptot, io:format("Number of blocks : ~p\n", [Btot]), - io:format("Number of carriers: ~p\n", [Ctot]); + io:format("Number of carriers: ~p\n", [Ctot]), + io:format("Number of pooled blocks : ~p\n", [PBtot]), + io:format("Number of pooled carriers: ~p\n", [PCtot]); print_stats(_) -> ok. tuple_add(T1, T2) -> @@ -326,13 +426,13 @@ handle_result(_State, Result0) -> continue end. -start_node(Config, Opts) when is_list(Config), is_list(Opts) -> +start_node(Config, Opts, Prog) when is_list(Config), is_list(Opts) -> case proplists:get_value(debug,Config) of true -> {ok, node()}; - _ -> start_node_1(Config, Opts) + _ -> start_node_1(Config, Opts, Prog) end. -start_node_1(Config, Opts) -> +start_node_1(Config, Opts, Prog) -> Pa = filename:dirname(code:which(?MODULE)), Name = list_to_atom(atom_to_list(?MODULE) ++ "-" @@ -341,7 +441,11 @@ start_node_1(Config, Opts) -> ++ integer_to_list(erlang:system_time(second)) ++ "-" ++ integer_to_list(erlang:unique_integer([positive]))), - test_server:start_node(Name, slave, [{args, Opts++" -pa "++Pa}]). + ErlArg = case Prog of + [] -> []; + _ -> [{erl,[Prog]}] + end, + test_server:start_node(Name, slave, [{args, Opts++" -pa "++Pa} | ErlArg]). stop_node(Node) when Node =:= node() -> ok; stop_node(Node) -> diff --git a/erts/emulator/test/alloc_SUITE_data/allocator_test.h b/erts/emulator/test/alloc_SUITE_data/allocator_test.h index 97ee58cdad..5272f86c98 100644 --- a/erts/emulator/test/alloc_SUITE_data/allocator_test.h +++ b/erts/emulator/test/alloc_SUITE_data/allocator_test.h @@ -156,7 +156,8 @@ typedef void* erts_cond; #define IS_SMP_ENABLED ((int) ALC_TEST0(0xf13)) #define ALLOC_TEST(S) ((void*) ALC_TEST1(0xf14, (S))) #define FREE_TEST(P) ((void) ALC_TEST1(0xf15, (P))) -#define SET_TEST_MBC_USER_HEADER(SZ,CMBC,DMBC) ((int)ALC_TEST3(0xf16, (SZ), (CMBC), (DMBC))) -#define GET_TEST_MBC_SIZE() ((int) ALC_TEST0(0xf17)) +#define REALLOC_TEST(P,S) ((void*) ALC_TEST2(0xf16, (P), (S))) +#define SET_TEST_MBC_USER_HEADER(SZ,CMBC,DMBC) ((int)ALC_TEST3(0xf17, (SZ), (CMBC), (DMBC))) +#define GET_TEST_MBC_SIZE() ((int) ALC_TEST0(0xf18)) #endif diff --git a/erts/emulator/test/alloc_SUITE_data/migration.c b/erts/emulator/test/alloc_SUITE_data/migration.c index b9a4de03b3..1d974225fc 100644 --- a/erts/emulator/test/alloc_SUITE_data/migration.c +++ b/erts/emulator/test/alloc_SUITE_data/migration.c @@ -223,6 +223,42 @@ static int rand_int(MigrationState* state, int low, int high) return low + (x % (high+1-low)); } +enum Operation +{ + ALLOCATE_OP, + FREE_OP, + REALLOC_OP, + CLEANUP_OP +}; + +static enum Operation rand_op(MigrationState* state) +{ + int r = rand_int(state, 1, 100); + switch (state->phase) { + case GROWING: + FATAL_ASSERT(state->nblocks < state->max_nblocks); + if (r > 10 || state->nblocks == 0) + return ALLOCATE_OP; + else if (r > 5) + return FREE_OP; + else + return REALLOC_OP; + + case SHRINKING: + FATAL_ASSERT(state->nblocks > 0); + if (r > 10 || state->nblocks == state->max_nblocks) + return FREE_OP; + else if (r > 5) + return ALLOCATE_OP; + else + return REALLOC_OP; + + case CLEANUP: + return CLEANUP_OP; + default: + FATAL_ASSERT(!"Invalid op phase"); + } +} static void do_cleanup(TestCaseState_t *tcs, MigrationState* state) { @@ -275,53 +311,75 @@ testcase_run(TestCaseState_t *tcs) state->goal_nblocks = rand_int(state, 1, state->max_nblocks); } - switch (state->phase) { - case GROWING: { + switch (rand_op(state)) { + case ALLOCATE_OP: { MyBlock* p; FATAL_ASSERT(!state->blockv[state->nblocks]); - p = ALLOC_TEST(rand_int(state, state->block_size/2, state->block_size)); + p = ALLOC_TEST(rand_int(state, state->block_size/2, state->block_size)); FATAL_ASSERT(p); add_block(p, state); - state->blockv[state->nblocks] = p; - if (++state->nblocks >= state->goal_nblocks) { - /*testcase_printf(tcs, "%d: Grown to %d blocks", tcs->thr_nr, state->nblocks);*/ - state->phase = SHRINKING; - state->goal_nblocks = rand_int(state, 0, state->goal_nblocks-1); - } - else - FATAL_ASSERT(!state->blockv[state->nblocks]); + state->blockv[state->nblocks++] = p; break; } - case SHRINKING: { + case FREE_OP: { int ix = rand_int(state, 0, state->nblocks-1); FATAL_ASSERT(state->blockv[ix]); remove_block(state->blockv[ix]); FREE_TEST(state->blockv[ix]); state->blockv[ix] = state->blockv[--state->nblocks]; state->blockv[state->nblocks] = NULL; - - if (state->nblocks <= state->goal_nblocks) { - /*testcase_printf(tcs, "%d: Shrunk to %d blocks", tcs->thr_nr, state->nblocks);*/ - if (++state->round >= MAX_ROUNDS) { - state->phase = CLEANUP; - } else { - state->phase = GROWING; - state->goal_nblocks = rand_int(state, state->goal_nblocks+1, state->max_nblocks); - } - } break; } + case REALLOC_OP: { + int ix = rand_int(state, 0, state->nblocks-1); + MyBlock* p; + FATAL_ASSERT(state->blockv[ix]); + remove_block(state->blockv[ix]); + p = REALLOC_TEST(state->blockv[ix], rand_int(state, state->block_size/2, state->block_size)); + FATAL_ASSERT(p); + add_block(p, state); + state->blockv[ix] = p; + break; + } + case CLEANUP_OP: + do_cleanup(tcs, state); + break; + default: + FATAL_ASSERT(!"Invalid operation"); + } + + switch (state->phase) { + case GROWING: { + if (state->nblocks >= state->goal_nblocks) { + /*testcase_printf(tcs, "%d: Grown to %d blocks", tcs->thr_nr, state->nblocks);*/ + state->phase = SHRINKING; + state->goal_nblocks = rand_int(state, 0, state->goal_nblocks-1); + } + else + FATAL_ASSERT(!state->blockv[state->nblocks]); + break; + } + case SHRINKING: { + if (state->nblocks <= state->goal_nblocks) { + /*testcase_printf(tcs, "%d: Shrunk to %d blocks", tcs->thr_nr, state->nblocks);*/ + if (++state->round >= MAX_ROUNDS) { + state->phase = CLEANUP; + } else { + state->phase = GROWING; + state->goal_nblocks = rand_int(state, state->goal_nblocks+1, state->max_nblocks); + } + } + break; + } case CLEANUP: - do_cleanup(tcs, state); - break; + case DONE: + break; default: FATAL_ASSERT(!"Invalid phase"); } - if (state->phase == DONE) { - } - else { + if (state->phase != DONE) { testcase_continue(tcs); } } diff --git a/erts/emulator/test/binary_SUITE.erl b/erts/emulator/test/binary_SUITE.erl index 4bc1838139..a3c3daac15 100644 --- a/erts/emulator/test/binary_SUITE.erl +++ b/erts/emulator/test/binary_SUITE.erl @@ -262,6 +262,7 @@ test_deep_bitstr(List) -> {Bin,bitstring_to_list(Bin)}. bad_list_to_binary(Config) when is_list(Config) -> + test_bad_bin(<<1:1>>), test_bad_bin(atom), test_bad_bin(42), test_bad_bin([1|2]), diff --git a/erts/emulator/test/efile_SUITE.erl b/erts/emulator/test/efile_SUITE.erl index 16d581a567..821381bf0d 100644 --- a/erts/emulator/test/efile_SUITE.erl +++ b/erts/emulator/test/efile_SUITE.erl @@ -46,14 +46,14 @@ iter_max_files_1(Config) -> DataDir = proplists:get_value(data_dir,Config), TestFile = filename:join(DataDir, "existing_file"), N = 10, - %% Run on a different node in order to set the max ports + %% Run on a different node in order to make the test more stable. Dir = filename:dirname(code:which(?MODULE)), {ok,Node} = test_server:start_node(test_iter_max_files,slave, - [{args,"+Q 1524 -pa " ++ Dir}]), + [{args,"-pa " ++ Dir}]), L = rpc:call(Node,?MODULE,do_iter_max_files,[N, TestFile]), test_server:stop_node(Node), io:format("Number of files opened in each test:~n~w\n", [L]), - all_equal(L), + verify_max_files(L), Head = hd(L), if Head >= 2 -> ok; true -> ct:fail(too_few_files) @@ -65,12 +65,15 @@ do_iter_max_files(N, Name) when N > 0 -> do_iter_max_files(_, _) -> []. -all_equal([E, E| T]) -> - all_equal([E| T]); -all_equal([_]) -> - ok; -all_equal([]) -> - ok. +%% The attempts shouldn't vary too much; we used to require that they were all +%% exactly equal, but after we reimplemented the file driver as a NIF we +%% noticed that the only reason it was stable on Darwin was because the port +%% limit was hit before ulimit. +verify_max_files(Attempts) -> + N = length(Attempts), + Mean = lists:sum(Attempts) / N, + Variance = lists:sum([(X - Mean) * (X - Mean) || X <- Attempts]) / N, + true = math:sqrt(Variance) =< 1 + (Mean / 1000). max_files(Name) -> Fds = open_files(Name), diff --git a/erts/emulator/test/iovec_SUITE.erl b/erts/emulator/test/iovec_SUITE.erl index 49dc64b0d2..963b7e2501 100644 --- a/erts/emulator/test/iovec_SUITE.erl +++ b/erts/emulator/test/iovec_SUITE.erl @@ -25,7 +25,8 @@ -export([integer_lists/1, binary_lists/1, empty_lists/1, empty_binary_lists/1, mixed_lists/1, improper_lists/1, illegal_lists/1, cons_bomb/1, sub_binary_lists/1, iolist_to_iovec_idempotence/1, - iolist_to_iovec_correctness/1]). + iolist_to_iovec_correctness/1, unaligned_sub_binaries/1, + direct_binary_arg/1]). -include_lib("common_test/include/ct.hrl"). @@ -36,7 +37,8 @@ suite() -> all() -> [integer_lists, binary_lists, empty_lists, empty_binary_lists, mixed_lists, sub_binary_lists, illegal_lists, improper_lists, cons_bomb, - iolist_to_iovec_idempotence, iolist_to_iovec_correctness]. + iolist_to_iovec_idempotence, iolist_to_iovec_correctness, + unaligned_sub_binaries, direct_binary_arg]. init_per_suite(Config) -> Config. @@ -78,7 +80,7 @@ illegal_lists(Config) when is_list(Config) -> BitStrs = gen_variations(["gurka", <<1:1>>, "gaffel"]), BadInts = gen_variations(["gurka", 890, "gaffel"]), Atoms = gen_variations([gurka, "gaffel"]), - BadTails = [["test" | 0], ["gurka", gaffel]], + BadTails = [["test" | 0], ["gurka" | gaffel], ["gaffel" | <<1:1>>]], Variations = BitStrs ++ BadInts ++ Atoms ++ BadTails, @@ -98,14 +100,7 @@ cons_bomb(Config) when is_list(Config) -> BinBase = gen_variations([<<I:8>> || I <- lists:seq(1, 255)]), MixBase = gen_variations([<<12, 45, 78>>, lists:seq(1, 255)]), - Rounds = - case system_mem_size() of - Mem when Mem >= (16 bsl 30) -> 32; - Mem when Mem >= (3 bsl 30) -> 28; - _ -> 20 - end, - - Variations = gen_variations([IntBase, BinBase, MixBase], Rounds), + Variations = gen_variations([IntBase, BinBase, MixBase], 16), equivalence_test(fun erlang:iolist_to_iovec/1, Variations). iolist_to_iovec_idempotence(Config) when is_list(Config) -> @@ -130,6 +125,21 @@ iolist_to_iovec_correctness(Config) when is_list(Config) -> true = is_iolist_equal(Optimized, Variations), ok. +unaligned_sub_binaries(Config) when is_list(Config) -> + UnalignedBins = [gen_unaligned_binary(I) || I <- lists:seq(32, 4 bsl 10, 512)], + UnalignedVariations = gen_variations(UnalignedBins), + + Optimized = erlang:iolist_to_iovec(UnalignedVariations), + + true = is_iolist_equal(Optimized, UnalignedVariations), + ok. + +direct_binary_arg(Config) when is_list(Config) -> + {'EXIT',{badarg, _}} = (catch erlang:iolist_to_iovec(<<1:1>>)), + [<<1>>] = erlang:iolist_to_iovec(<<1>>), + [] = erlang:iolist_to_iovec(<<>>), + ok. + illegality_test(Fun, Variations) -> [{'EXIT',{badarg, _}} = (catch Fun(Variation)) || Variation <- Variations], ok. @@ -145,11 +155,18 @@ equivalence_test(Fun, [Head | _] = Variations) -> is_iolist_equal(A, B) -> iolist_to_binary(A) =:= iolist_to_binary(B). +gen_unaligned_binary(Size) -> + Bin0 = << <<I>> || I <- lists:seq(1, Size) >>, + <<0:3,Bin:Size/binary,31:5>> = id(<<0:3,Bin0/binary,31:5>>), + Bin. + +id(I) -> I. + %% Generates a bunch of lists whose contents will be equal to Base repeated a %% few times. The lists only differ by their structure, so their reduction to %% a simpler format should yield the same result. gen_variations(Base) -> - gen_variations(Base, 16). + gen_variations(Base, 12). gen_variations(Base, N) -> [gen_flat_list(Base, N), gen_nested_list(Base, N), @@ -169,8 +186,3 @@ gen_nasty_list_1([Head | Base], Result) when is_list(Head) -> gen_nasty_list_1(Base, [[Result], [gen_nasty_list_1(Head, [])]]); gen_nasty_list_1([Head | Base], Result) -> gen_nasty_list_1(Base, [[Result], [Head]]). - -system_mem_size() -> - application:ensure_all_started(os_mon), - {Tot,_Used,_} = memsup:get_memory_data(), - Tot. diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl index 85c302e310..b6e15ababb 100644 --- a/erts/emulator/test/nif_SUITE.erl +++ b/erts/emulator/test/nif_SUITE.erl @@ -3049,8 +3049,24 @@ nif_ioq(Config) -> {peek_head, a}, {peek, a}, - %% Test to enqueue a bunch of refc binaries + %% Ensure that enqueued refc binaries are intact after a roundtrip. + %% + %% This test and the ones immediately following it does not go through + %% erlang:iolist_to_iovec/1 {enqv, a, [nif_ioq_payload(refcbin) || _ <- lists:seq(1,20)], 0}, + {peek, a}, + + %% ... heap binaries + {enqv, a, [nif_ioq_payload(heapbin) || _ <- lists:seq(1,20)], 0}, + {peek, a}, + + %% ... plain sub-binaries + {enqv, a, [nif_ioq_payload(subbin) || _ <- lists:seq(1,20)], 0}, + {peek, a}, + + %% ... unaligned binaries + {enqv, a, [nif_ioq_payload(unaligned_bin) || _ <- lists:seq(1,20)], 0}, + {peek, a}, %% Enq stuff to destroy with data in queue {enqv, a, 2, 100}, @@ -3206,13 +3222,16 @@ nif_ioq_payload(N) when is_integer(N) -> Tail = if N > 3 -> nif_ioq_payload(N-3); true -> [] end, Head = element(1, lists:split(N,[nif_ioq_payload(subbin), nif_ioq_payload(heapbin), - nif_ioq_payload(refcbin) | Tail])), + nif_ioq_payload(refcbin), + nif_ioq_payload(unaligned_bin) | Tail])), erlang:iolist_to_iovec(Head); nif_ioq_payload(subbin) -> Bin = nif_ioq_payload(refcbin), Sz = size(Bin) - 1, <<_:8,SubBin:Sz/binary,_/bits>> = Bin, SubBin; +nif_ioq_payload(unaligned_bin) -> + make_unaligned_binary(<< <<I>> || I <- lists:seq(1, 255) >>); nif_ioq_payload(heapbin) -> <<"a literal heap binary">>; nif_ioq_payload(refcbin) -> @@ -3220,6 +3239,13 @@ nif_ioq_payload(refcbin) -> nif_ioq_payload(Else) -> Else. +make_unaligned_binary(Bin0) -> + Size = byte_size(Bin0), + <<0:3,Bin:Size/binary,31:5>> = id(<<0:3,Bin0/binary,31:5>>), + Bin. + +id(I) -> I. + %% The NIFs: lib_version() -> undefined. call_history() -> ?nif_stub. |