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-rw-r--r--erts/emulator/test/busy_port_SUITE.erl6
-rw-r--r--erts/emulator/test/fun_SUITE.erl23
-rw-r--r--erts/emulator/test/nif_SUITE.erl57
-rw-r--r--erts/emulator/test/nif_SUITE_data/nif_SUITE.c94
-rw-r--r--erts/emulator/test/num_bif_SUITE.erl32
-rw-r--r--erts/emulator/test/tuple_SUITE.erl95
6 files changed, 244 insertions, 63 deletions
diff --git a/erts/emulator/test/busy_port_SUITE.erl b/erts/emulator/test/busy_port_SUITE.erl
index 4b4af0babe..2ed5aaa0d0 100644
--- a/erts/emulator/test/busy_port_SUITE.erl
+++ b/erts/emulator/test/busy_port_SUITE.erl
@@ -98,8 +98,10 @@ generator(0, Writer, _Data) ->
%% Calling process_info(Pid, current_function) on a suspended process
%% used to crash Beam.
- {current_function, {erlang, send, 2}} =
- process_info(Writer, current_function),
+ case process_info(Writer, [status,current_function]) of
+ [{status,suspended},{current_function,{erlang,send,2}}] -> ok;
+ [{status,suspended},{current_function,{erlang,bif_return_trap,_}}] -> ok
+ end,
unlock_slave();
generator(N, Writer, Data) ->
Writer ! {exec, Data},
diff --git a/erts/emulator/test/fun_SUITE.erl b/erts/emulator/test/fun_SUITE.erl
index 8ad5f290ed..2968f5bebb 100644
--- a/erts/emulator/test/fun_SUITE.erl
+++ b/erts/emulator/test/fun_SUITE.erl
@@ -30,7 +30,7 @@
fun_to_port/1,t_hash/1,t_phash/1,t_phash2/1,md5/1,
refc/1,refc_ets/1,refc_dist/1,
const_propagation/1,t_arity/1,t_is_function2/1,
- t_fun_info/1]).
+ t_fun_info/1,t_fun_info_mfa/1]).
-export([nothing/0]).
@@ -42,7 +42,8 @@ all() ->
[bad_apply, bad_fun_call, badarity, ext_badarity,
equality, ordering, fun_to_port, t_hash, t_phash,
t_phash2, md5, refc, refc_ets, refc_dist,
- const_propagation, t_arity, t_is_function2, t_fun_info].
+ const_propagation, t_arity, t_is_function2, t_fun_info,
+ t_fun_info_mfa].
groups() ->
[].
@@ -824,6 +825,24 @@ t_fun_info(Config) when is_list(Config) ->
?line bad_info(<<1,2>>),
ok.
+t_fun_info_mfa(Config) when is_list(Config) ->
+ Fun1 = fun spawn_call/2,
+ {module,M1} = erlang:fun_info(Fun1, module),
+ {name,F1} = erlang:fun_info(Fun1, name),
+ {arity,A1} = erlang:fun_info(Fun1, arity),
+ {M1,F1,A1=2} = erlang:fun_info_mfa(Fun1),
+ %% Module fun.
+ Fun2 = fun ?MODULE:t_fun_info/1,
+ {module,M2} = erlang:fun_info(Fun2, module),
+ {name,F2} = erlang:fun_info(Fun2, name),
+ {arity,A2} = erlang:fun_info(Fun2, arity),
+ {M2,F2,A2=1} = erlang:fun_info_mfa(Fun2),
+
+ %% Not fun.
+ {'EXIT',_} = (catch erlang:fun_info_mfa(id(d))),
+ ok.
+
+
bad_info(Term) ->
try erlang:fun_info(Term, module) of
Any ->
diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl
index b2da6f58af..14e6585220 100644
--- a/erts/emulator/test/nif_SUITE.erl
+++ b/erts/emulator/test/nif_SUITE.erl
@@ -37,7 +37,9 @@
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,
- otp_9668/1, consume_timeslice/1, dirty_nif/1, dirty_nif_send/1
+ otp_9828/1,
+ otp_9668/1, consume_timeslice/1, dirty_nif/1, dirty_nif_send/1,
+ dirty_nif_exception/1, nif_schedule/1
]).
-export([many_args_100/100]).
@@ -64,7 +66,9 @@ all() ->
resource_takeover, threading, send, send2, send3,
send_threaded, neg, is_checks, get_length, make_atom,
make_string,reverse_list_test,
- otp_9668, consume_timeslice, dirty_nif, dirty_nif_send
+ otp_9828,
+ otp_9668, consume_timeslice,
+ nif_schedule, dirty_nif, dirty_nif_send, dirty_nif_exception
].
groups() ->
@@ -1440,6 +1444,20 @@ otp_9668(Config) ->
?line verify_tmpmem(TmpMem),
ok.
+otp_9828(doc) -> ["Copy of writable binary"];
+otp_9828(Config) ->
+ ensure_lib_loaded(Config, 1),
+
+ otp_9828_loop(<<"I'm alive!">>, 1000).
+
+otp_9828_loop(Bin, 0) ->
+ ok;
+otp_9828_loop(Bin, Val) ->
+ WrtBin = <<Bin/binary, Val:32>>,
+ ok = otp_9828_nif(WrtBin),
+ otp_9828_loop(WrtBin, Val-1).
+
+
consume_timeslice(Config) when is_list(Config) ->
CONTEXT_REDS = 2000,
Me = self(),
@@ -1524,6 +1542,20 @@ consume_timeslice(Config) when is_list(Config) ->
ok.
+nif_schedule(Config) when is_list(Config) ->
+ ensure_lib_loaded(Config),
+ A = "this is a string",
+ B = {this,is,a,tuple},
+ {B,A} = call_nif_schedule(A, B),
+ ok = try call_nif_schedule(1, 2)
+ catch
+ error:badarg ->
+ [{?MODULE,call_nif_schedule,[1,2],_}|_] =
+ erlang:get_stacktrace(),
+ ok
+ end,
+ ok.
+
dirty_nif(Config) when is_list(Config) ->
try erlang:system_info(dirty_cpu_schedulers) of
N when is_integer(N) ->
@@ -1556,6 +1588,24 @@ dirty_nif_send(Config) when is_list(Config) ->
{skipped,"No dirty scheduler support"}
end.
+dirty_nif_exception(Config) when is_list(Config) ->
+ try erlang:system_info(dirty_cpu_schedulers) of
+ N when is_integer(N) ->
+ ensure_lib_loaded(Config),
+ try
+ call_dirty_nif_exception(),
+ ?t:fail(expected_badarg)
+ catch
+ error:badarg ->
+ [{?MODULE,call_dirty_nif_exception,[],_}|_] =
+ erlang:get_stacktrace(),
+ ok
+ end
+ catch
+ error:badarg ->
+ {skipped,"No dirty scheduler support"}
+ end.
+
next_msg(_Pid) ->
receive
M -> M
@@ -1684,9 +1734,12 @@ reverse_list(_) -> ?nif_stub.
echo_int(_) -> ?nif_stub.
type_sizes() -> ?nif_stub.
otp_9668_nif(_) -> ?nif_stub.
+otp_9828_nif(_) -> ?nif_stub.
consume_timeslice_nif(_,_) -> ?nif_stub.
+call_nif_schedule(_,_) -> ?nif_stub.
call_dirty_nif(_,_,_) -> ?nif_stub.
send_from_dirty_nif(_) -> ?nif_stub.
+call_dirty_nif_exception() -> ?nif_stub.
%% maps
is_map_nif(_) -> ?nif_stub.
diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
index 955dc64189..ff5fb8c5af 100644
--- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
+++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
@@ -1473,6 +1473,26 @@ static ERL_NIF_TERM otp_9668_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar
return atom_ok;
}
+static ERL_NIF_TERM otp_9828_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ /* copy a writable binary could reallocate it due to "emasculation"
+ and thereby render a previous inspection invalid.
+ */
+ ErlNifBinary bin1;
+ ErlNifEnv* myenv;
+
+ if (!enif_inspect_binary(env, argv[0], &bin1)) {
+ return enif_make_badarg(env);
+ }
+
+ myenv = enif_alloc_env();
+ enif_make_copy(myenv, argv[0]);
+ enif_free_env(myenv);
+
+ return memcmp(bin1.data, "I'm alive!", 10)==0 ? atom_ok : atom_false;
+}
+
+
static ERL_NIF_TERM consume_timeslice_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
int percent;
@@ -1493,6 +1513,31 @@ static ERL_NIF_TERM consume_timeslice_nif(ErlNifEnv* env, int argc, const ERL_NI
}
}
+static ERL_NIF_TERM nif_sched2(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ char s[64];
+ if (!enif_get_string(env, argv[2], s, sizeof s, ERL_NIF_LATIN1))
+ return enif_make_badarg(env);
+ return enif_make_tuple2(env, argv[3], argv[2]);
+}
+
+static ERL_NIF_TERM nif_sched1(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ ERL_NIF_TERM new_argv[4];
+ new_argv[0] = enif_make_atom(env, "garbage0");
+ new_argv[1] = enif_make_atom(env, "garbage1");
+ new_argv[2] = argv[0];
+ new_argv[3] = argv[1];
+ return enif_schedule_nif(env, "nif_sched2", 0, nif_sched2, 4, new_argv);
+}
+
+static ERL_NIF_TERM call_nif_schedule(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ if (argc != 2)
+ return enif_make_atom(env, "false");
+ return enif_schedule_nif(env, "nif_sched1", 0, nif_sched1, argc, argv);
+}
+
#ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT
static ERL_NIF_TERM dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
@@ -1507,11 +1552,10 @@ static ERL_NIF_TERM dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[
enif_get_int(env, argv[0], &n);
enif_get_string(env, argv[1], s, sizeof s, ERL_NIF_LATIN1);
enif_inspect_binary(env, argv[2], &b);
- result = enif_make_tuple3(env,
- enif_make_int(env, n),
- enif_make_string(env, s, ERL_NIF_LATIN1),
- enif_make_binary(env, &b));
- return enif_schedule_dirty_nif_finalizer(env, result, enif_dirty_nif_finalizer);
+ return enif_make_tuple3(env,
+ enif_make_int(env, n),
+ enif_make_string(env, s, ERL_NIF_LATIN1),
+ enif_make_binary(env, &b));
}
static ERL_NIF_TERM call_dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
@@ -1526,7 +1570,7 @@ static ERL_NIF_TERM call_dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
if (enif_get_int(env, argv[0], &n) &&
enif_get_string(env, argv[1], s, sizeof s, ERL_NIF_LATIN1) &&
enif_inspect_binary(env, argv[2], &b))
- return enif_schedule_dirty_nif(env, ERL_NIF_DIRTY_JOB_CPU_BOUND, dirty_nif, argc, argv);
+ return enif_schedule_nif(env, "call_dirty_nif", ERL_NIF_DIRTY_JOB_CPU_BOUND, dirty_nif, argc, argv);
else
return enif_make_badarg(env);
} else {
@@ -1534,35 +1578,42 @@ static ERL_NIF_TERM call_dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
}
}
-static ERL_NIF_TERM dirty_sender(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+static ERL_NIF_TERM send_from_dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
ERL_NIF_TERM result;
ErlNifPid pid;
ErlNifEnv* menv;
int res;
- enif_get_local_pid(env, argv[0], &pid);
+ if (!enif_get_local_pid(env, argv[0], &pid))
+ return enif_make_badarg(env);
result = enif_make_tuple2(env, enif_make_atom(env, "ok"), enif_make_pid(env, &pid));
menv = enif_alloc_env();
res = enif_send(env, &pid, menv, result);
enif_free_env(menv);
if (!res)
- /* Note the next line will crash, since dirty nifs can't return exceptions.
- * This is intentional, since enif_send should not fail if the test succeeds.
- */
- return enif_schedule_dirty_nif_finalizer(env, enif_make_badarg(env), enif_dirty_nif_finalizer);
+ return enif_make_badarg(env);
else
- return enif_schedule_dirty_nif_finalizer(env, result, enif_dirty_nif_finalizer);
+ return result;
}
-static ERL_NIF_TERM send_from_dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+static ERL_NIF_TERM call_dirty_nif_exception(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
- ERL_NIF_TERM result;
- ErlNifPid pid;
-
- if (!enif_get_local_pid(env, argv[0], &pid))
+ switch (argc) {
+ case 0: {
+ ERL_NIF_TERM args[255];
+ int i;
+ for (i = 0; i < 255; i++)
+ args[i] = enif_make_int(env, i);
+ return enif_schedule_nif(env, "call_dirty_nif_exception", ERL_NIF_DIRTY_JOB_CPU_BOUND,
+ call_dirty_nif_exception, 255, argv);
+ }
+ case 1:
return enif_make_badarg(env);
- return enif_schedule_dirty_nif(env, ERL_NIF_DIRTY_JOB_CPU_BOUND, dirty_sender, argc, argv);
+ default:
+ return enif_schedule_nif(env, "call_dirty_nif_exception", ERL_NIF_DIRTY_JOB_CPU_BOUND,
+ call_dirty_nif_exception, argc-1, argv);
+ }
}
#endif
@@ -1741,10 +1792,13 @@ static ErlNifFunc nif_funcs[] =
{"echo_int", 1, echo_int},
{"type_sizes", 0, type_sizes},
{"otp_9668_nif", 1, otp_9668_nif},
+ {"otp_9828_nif", 1, otp_9828_nif},
{"consume_timeslice_nif", 2, consume_timeslice_nif},
+ {"call_nif_schedule", 2, call_nif_schedule},
#ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT
{"call_dirty_nif", 3, call_dirty_nif},
- {"send_from_dirty_nif", 1, send_from_dirty_nif},
+ {"send_from_dirty_nif", 1, send_from_dirty_nif, ERL_NIF_DIRTY_JOB_CPU_BOUND},
+ {"call_dirty_nif_exception", 0, call_dirty_nif_exception, ERL_NIF_DIRTY_JOB_IO_BOUND},
#endif
{"is_map_nif", 1, is_map_nif},
{"get_map_size_nif", 1, get_map_size_nif},
diff --git a/erts/emulator/test/num_bif_SUITE.erl b/erts/emulator/test/num_bif_SUITE.erl
index ff8d18eef8..8cf8377c30 100644
--- a/erts/emulator/test/num_bif_SUITE.erl
+++ b/erts/emulator/test/num_bif_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -394,18 +394,15 @@ t_string_to_integer(Config) when is_list(Config) ->
test_sti(268435455),
test_sti(-268435455),
- %% 1 bsl 28 - 1, just before 32 bit bignum
- test_sti(1 bsl 28 - 1),
- %% 1 bsl 28, just beyond 32 bit small
- test_sti(1 bsl 28),
- %% 1 bsl 33, just beyond 32 bit
- test_sti(1 bsl 33),
- %% 1 bsl 60 - 1, just before 64 bit bignum
- test_sti(1 bsl 60 - 1),
- %% 1 bsl 60, just beyond 64 bit small
- test_sti(1 bsl 60),
- %% 1 bsl 65, just beyond 64 bit
- test_sti(1 bsl 65),
+ % Interesting values around 2-pows, such as MIN_SMALL and MAX_SMALL.
+ lists:foreach(fun(Bits) ->
+ N = 1 bsl Bits,
+ test_sti(N - 1),
+ test_sti(N),
+ test_sti(N + 1)
+ end,
+ lists:seq(16, 130)),
+
%% Bignums.
test_sti(123456932798748738738,16),
test_sti(list_to_integer(lists:duplicate(2000, $1))),
@@ -454,10 +451,11 @@ test_sti(Num) ->
end|| Base <- lists:seq(2,36)].
test_sti(Num,Base) ->
- Num = list_to_integer(int2list(Num,Base),Base),
- Num = -1*list_to_integer(int2list(Num*-1,Base),Base),
- Num = binary_to_integer(int2bin(Num,Base),Base),
- Num = -1*binary_to_integer(int2bin(Num*-1,Base),Base).
+ Neg = -Num,
+ Num = list_to_integer(int2list(Num,Base),Base),
+ Neg = list_to_integer(int2list(Num*-1,Base),Base),
+ Num = binary_to_integer(int2bin(Num,Base),Base),
+ Neg = binary_to_integer(int2bin(Num*-1,Base),Base).
% Calling this function (which is not supposed to be inlined) prevents
% the compiler from calculating the answer, so we don't test the compiler
diff --git a/erts/emulator/test/tuple_SUITE.erl b/erts/emulator/test/tuple_SUITE.erl
index 46ece41096..f627eea07f 100644
--- a/erts/emulator/test/tuple_SUITE.erl
+++ b/erts/emulator/test/tuple_SUITE.erl
@@ -21,8 +21,9 @@
init_per_group/2,end_per_group/2,
t_size/1, t_tuple_size/1, t_element/1, t_setelement/1,
t_insert_element/1, t_delete_element/1,
- t_list_to_tuple/1, t_tuple_to_list/1,
- t_make_tuple_2/1, t_make_tuple_3/1, t_append_element/1,
+ t_list_to_tuple/1, t_list_to_upper_boundry_tuple/1, t_tuple_to_list/1,
+ t_make_tuple_2/1, t_make_upper_boundry_tuple_2/1, t_make_tuple_3/1,
+ t_append_element/1, t_append_element_upper_boundry/1,
build_and_match/1, tuple_with_case/1, tuple_in_guard/1]).
-include_lib("test_server/include/test_server.hrl").
@@ -40,8 +41,10 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[build_and_match, t_size, t_tuple_size, t_list_to_tuple,
+ t_list_to_upper_boundry_tuple,
t_tuple_to_list, t_element, t_setelement,
- t_make_tuple_2, t_make_tuple_3, t_append_element,
+ t_make_tuple_2, t_make_upper_boundry_tuple_2, t_make_tuple_3,
+ t_append_element, t_append_element_upper_boundry,
t_insert_element, t_delete_element,
tuple_with_case, tuple_in_guard].
@@ -49,11 +52,21 @@ groups() ->
[].
init_per_suite(Config) ->
+ A0 = case application:start(sasl) of
+ ok -> [sasl];
+ _ -> []
+ end,
+ A = case application:start(os_mon) of
+ ok -> [os_mon|A0];
+ _ -> A0
+ end,
+ [{started_apps, A}|Config].
+
+end_per_suite(Config) ->
+ As = ?config(started_apps, Config),
+ lists:foreach(fun (A) -> application:stop(A) end, As),
Config.
-end_per_suite(_Config) ->
- ok.
-
init_per_group(_GroupName, Config) ->
Config.
@@ -176,14 +189,19 @@ t_list_to_tuple(Config) when is_list(Config) ->
{'EXIT', {badarg, _}} = (catch list_to_tuple(id([a|b]))),
{'EXIT', {badarg, _}} = (catch list_to_tuple(id([a|b]))),
- % test upper boundry, 16777215 elements
- MaxSize = 1 bsl 24 - 1,
- MaxTuple = list_to_tuple(lists:seq(1, MaxSize)),
- MaxSize = size(MaxTuple),
-
{'EXIT', {badarg,_}} = (catch list_to_tuple(lists:seq(1, 1 bsl 24))),
ok.
+t_list_to_upper_boundry_tuple(Config) when is_list(Config) ->
+ sys_mem_cond_run(2048,
+ fun () ->
+ %% test upper boundry, 16777215 elements
+ MaxSize = 1 bsl 24 - 1,
+ MaxTuple = list_to_tuple(lists:seq(1, MaxSize)),
+ MaxSize = size(MaxTuple),
+ ok
+ end).
+
%% Tests tuple_to_list/1.
t_tuple_to_list(Config) when is_list(Config) ->
@@ -214,8 +232,6 @@ t_make_tuple_2(Config) when is_list(Config) ->
t_make_tuple1({a}),
t_make_tuple1(erlang:make_tuple(400, [])),
- % test upper boundry, 16777215 elements
- t_make_tuple(1 bsl 24 - 1, a),
{'EXIT', {badarg,_}} = (catch erlang:make_tuple(1 bsl 24, a)),
{'EXIT', {badarg,_}} = (catch erlang:make_tuple(-1, a)),
@@ -225,6 +241,13 @@ t_make_tuple_2(Config) when is_list(Config) ->
{'EXIT', {badarg,_}} = (catch erlang:make_tuple(1 bsl 65 + 3, a)),
ok.
+t_make_upper_boundry_tuple_2(Config) when is_list(Config) ->
+ sys_mem_cond_run(2048,
+ fun () ->
+ %% test upper boundry, 16777215 elements
+ t_make_tuple(1 bsl 24 - 1, a)
+ end).
+
t_make_tuple1(Element) ->
lists:foreach(fun(Size) -> t_make_tuple(Size, Element) end,
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 255, 256, 511, 512, 999,
@@ -309,13 +332,17 @@ t_delete_element(Config) when is_list(Config) ->
%% Tests the append_element/2 BIF.
t_append_element(Config) when is_list(Config) ->
- ok = t_append_element({}, 2048, 2048),
-
- % test upper boundry, 16777215 elements
- MaxSize = 1 bsl 24 - 1,
- MaxTuple = list_to_tuple(lists:seq(1, MaxSize)),
- {'EXIT',{badarg,_}} = (catch erlang:append_element(MaxTuple, a)),
- ok.
+ ok = t_append_element({}, 2048, 2048).
+
+t_append_element_upper_boundry(Config) when is_list(Config) ->
+ sys_mem_cond_run(2048,
+ fun () ->
+ %% test upper boundry, 16777215 elements
+ MaxSize = 1 bsl 24 - 1,
+ MaxTuple = list_to_tuple(lists:seq(1, MaxSize)),
+ {'EXIT',{badarg,_}} = (catch erlang:append_element(MaxTuple, a)),
+ ok
+ end).
t_append_element(_Tuple, 0, _High) -> ok;
t_append_element(Tuple, N, High) ->
@@ -371,3 +398,31 @@ tuple_in_guard(Config) when is_list(Config) ->
%% Use this function to avoid compile-time evaluation of an expression.
id(I) -> I.
+
+sys_mem_cond_run(ReqSizeMB, TestFun) when is_integer(ReqSizeMB) ->
+ case total_memory() of
+ TotMem when is_integer(TotMem), TotMem >= ReqSizeMB ->
+ TestFun();
+ TotMem when is_integer(TotMem) ->
+ {skipped, "Not enough memory ("++integer_to_list(TotMem)++" MB)"};
+ undefined ->
+ {skipped, "Could not retrieve memory information"}
+ end.
+
+
+total_memory() ->
+ %% Totat memory in MB.
+ try
+ MemoryData = memsup:get_system_memory_data(),
+ case lists:keysearch(total_memory, 1, MemoryData) of
+ {value, {total_memory, TM}} ->
+ TM div (1024*1024);
+ false ->
+ {value, {system_total_memory, STM}} =
+ lists:keysearch(system_total_memory, 1, MemoryData),
+ STM div (1024*1024)
+ end
+ catch
+ _ : _ ->
+ undefined
+ end.
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-04 01:30:28 +0000