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authorRickard Green <[email protected]>2016-01-19 17:05:55 +0100
committerRickard Green <[email protected]>2016-01-21 15:10:09 +0100
commit3f33428db9aea0d767295322c4e882a5c6bbf7db (patch)
tree331741cf9e941f15f689f790d0f2e354450bf25b /erts/emulator/test
parentdc8e62f33ad0ca7a772ec74d67b6d3e157f639b4 (diff)
downloadotp-3f33428db9aea0d767295322c4e882a5c6bbf7db.tar.gz
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Introduce time management in native APIs
Diffstat (limited to 'erts/emulator/test')
-rw-r--r--erts/emulator/test/nif_SUITE.erl153
-rw-r--r--erts/emulator/test/nif_SUITE_data/nif_SUITE.c94
2 files changed, 244 insertions, 3 deletions
diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl
index af2b955184..3d478654b1 100644
--- a/erts/emulator/test/nif_SUITE.erl
+++ b/erts/emulator/test/nif_SUITE.erl
@@ -42,7 +42,8 @@
otp_9668/1, consume_timeslice/1, dirty_nif/1, dirty_nif_send/1,
dirty_nif_exception/1, call_dirty_nif_exception/1, nif_schedule/1,
nif_exception/1, call_nif_exception/1,
- nif_nan_and_inf/1, nif_atom_too_long/1
+ nif_nan_and_inf/1, nif_atom_too_long/1,
+ nif_monotonic_time/1, nif_time_offset/1, nif_convert_time_unit/1
]).
-export([many_args_100/100]).
@@ -72,7 +73,8 @@ all() ->
otp_9828,
otp_9668, consume_timeslice,
nif_schedule, dirty_nif, dirty_nif_send, dirty_nif_exception,
- nif_exception, nif_nan_and_inf, nif_atom_too_long
+ nif_exception, nif_nan_and_inf, nif_atom_too_long,
+ nif_monotonic_time, nif_time_offset, nif_convert_time_unit
].
groups() ->
@@ -1783,6 +1785,148 @@ nif_raise_exceptions(NifFunc) ->
end
end, ok, ExcTerms).
+-define(ERL_NIF_TIME_ERROR, -9223372036854775808).
+-define(TIME_UNITS, [seconds, milli_seconds, micro_seconds, nano_seconds]).
+
+nif_monotonic_time(Config) ->
+ ?ERL_NIF_TIME_ERROR = monotonic_time(invalid_time_unit),
+ mtime_loop(1000000).
+
+mtime_loop(0) ->
+ ok;
+mtime_loop(N) ->
+ chk_mtime(?TIME_UNITS),
+ mtime_loop(N-1).
+
+chk_mtime([]) ->
+ ok;
+chk_mtime([TU|TUs]) ->
+ A = erlang:monotonic_time(TU),
+ B = monotonic_time(TU),
+ C = erlang:monotonic_time(TU),
+ try
+ true = A =< B,
+ true = B =< C
+ catch
+ _ : _ ->
+ ?t:fail({monotonic_time_missmatch, TU, A, B, C})
+ end,
+ chk_mtime(TUs).
+
+nif_time_offset(Config) ->
+ ?ERL_NIF_TIME_ERROR = time_offset(invalid_time_unit),
+ toffs_loop(1000000).
+
+toffs_loop(0) ->
+ ok;
+toffs_loop(N) ->
+ chk_toffs(?TIME_UNITS),
+ toffs_loop(N-1).
+
+chk_toffs([]) ->
+ ok;
+chk_toffs([TU|TUs]) ->
+ TO = erlang:time_offset(TU),
+ NifTO = time_offset(TU),
+ case TO =:= NifTO of
+ true ->
+ ok;
+ false ->
+ case erlang:system_info(time_warp_mode) of
+ no_time_warp ->
+ ?t:fail({time_offset_mismatch, TU, TO, NifTO});
+ _ ->
+ %% Most frequent time offset change
+ %% is currently only every 15:th
+ %% second so this should currently
+ %% work...
+ NTO = erlang:time_offset(TU),
+ case NifTO =:= NTO of
+ true ->
+ ok;
+ false ->
+ ?t:fail({time_offset_mismatch, TU, TO, NifTO, NTO})
+ end
+ end
+ end,
+ chk_toffs(TUs).
+
+nif_convert_time_unit(Config) ->
+ ?ERL_NIF_TIME_ERROR = convert_time_unit(0, seconds, invalid_time_unit),
+ ?ERL_NIF_TIME_ERROR = convert_time_unit(0, invalid_time_unit, seconds),
+ ?ERL_NIF_TIME_ERROR = convert_time_unit(0, invalid_time_unit, invalid_time_unit),
+ lists:foreach(fun (Offset) ->
+ lists:foreach(fun (Diff) ->
+ chk_ctu(Diff+(Offset*1000*1000*1000))
+ end,
+ [999999999999,
+ 99999999999,
+ 9999999999,
+ 999999999,
+ 99999999,
+ 9999999,
+ 999999,
+ 99999,
+ 999,
+ 99,
+ 9,
+ 1,
+ 11,
+ 101,
+ 1001,
+ 10001,
+ 100001,
+ 1000001,
+ 10000001,
+ 100000001,
+ 1000000001,
+ 100000000001,
+ 1000000000001,
+ 5,
+ 50,
+ 500,
+ 5000,
+ 50000,
+ 500000,
+ 5000000,
+ 50000000,
+ 500000000,
+ 5000000000,
+ 50000000000,
+ 500000000000])
+ end,
+ [-4711, -1000, -475, -5, -4, -3, -2, -1, 0,
+ 1, 2, 3, 4, 5, 475, 1000, 4711]),
+ ctu_loop(1000000).
+
+ctu_loop(0) ->
+ ok;
+ctu_loop(N) ->
+ chk_ctu(erlang:monotonic_time(nano_seconds)),
+ ctu_loop(N-1).
+
+chk_ctu(Time) ->
+ chk_ctu(Time, ?TIME_UNITS).
+
+chk_ctu(_Time, []) ->
+ ok;
+chk_ctu(Time, [FromTU|FromTUs]) ->
+ chk_ctu(Time, FromTU, ?TIME_UNITS),
+ chk_ctu(Time, FromTUs).
+
+chk_ctu(_Time, _FromTU, []) ->
+ ok;
+chk_ctu(Time, FromTU, [ToTU|ToTUs]) ->
+ T = erlang:convert_time_unit(Time, nano_seconds, FromTU),
+ TE = erlang:convert_time_unit(T, FromTU, ToTU),
+ TN = convert_time_unit(T, FromTU, ToTU),
+ case TE =:= TN of
+ false ->
+ ?t:fail({conversion_mismatch, FromTU, T, ToTU, TE, TN});
+ true ->
+ chk_ctu(Time, FromTU, ToTUs)
+ end.
+
%% The NIFs:
lib_version() -> undefined.
call_history() -> ?nif_stub.
@@ -1852,6 +1996,11 @@ make_map_remove_nif(_,_) -> ?nif_stub.
maps_from_list_nif(_) -> ?nif_stub.
sorted_list_from_maps_nif(_) -> ?nif_stub.
+%% Time
+monotonic_time(_) -> ?nif_stub.
+time_offset(_) -> ?nif_stub.
+convert_time_unit(_,_,_) -> ?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 98e1efe18f..8ebce4fef4 100644
--- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
+++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
@@ -34,6 +34,10 @@ static ERL_NIF_TERM atom_self;
static ERL_NIF_TERM atom_ok;
static ERL_NIF_TERM atom_join;
static ERL_NIF_TERM atom_binary_resource_type;
+static ERL_NIF_TERM atom_seconds;
+static ERL_NIF_TERM atom_milli_seconds;
+static ERL_NIF_TERM atom_micro_seconds;
+static ERL_NIF_TERM atom_nano_seconds;
typedef struct
@@ -138,6 +142,10 @@ static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info)
atom_ok = enif_make_atom(env,"ok");
atom_join = enif_make_atom(env,"join");
atom_binary_resource_type = enif_make_atom(env,"binary_resource_type");
+ atom_seconds = enif_make_atom(env,"seconds");
+ atom_milli_seconds = enif_make_atom(env,"milli_seconds");
+ atom_micro_seconds = enif_make_atom(env,"micro_seconds");
+ atom_nano_seconds = enif_make_atom(env,"nano_seconds");
*priv_data = data;
return 0;
@@ -1885,6 +1893,87 @@ static ERL_NIF_TERM sorted_list_from_maps_nif(ErlNifEnv* env, int argc, const ER
return enif_make_tuple2(env, list_f, list_b);
}
+
+static ERL_NIF_TERM monotonic_time(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ ErlNifTimeUnit time_unit;
+
+ if (argc != 1)
+ return atom_false;
+
+ if (enif_compare(argv[0], atom_seconds) == 0)
+ time_unit = ERL_NIF_SEC;
+ else if (enif_compare(argv[0], atom_milli_seconds) == 0)
+ time_unit = ERL_NIF_MSEC;
+ else if (enif_compare(argv[0], atom_micro_seconds) == 0)
+ time_unit = ERL_NIF_USEC;
+ else if (enif_compare(argv[0], atom_nano_seconds) == 0)
+ time_unit = ERL_NIF_NSEC;
+ else
+ time_unit = 4711; /* invalid time unit */
+
+ return enif_make_int64(env, enif_monotonic_time(time_unit));
+}
+
+static ERL_NIF_TERM time_offset(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ ErlNifTimeUnit time_unit;
+
+ if (argc != 1)
+ return atom_false;
+
+ if (enif_compare(argv[0], atom_seconds) == 0)
+ time_unit = ERL_NIF_SEC;
+ else if (enif_compare(argv[0], atom_milli_seconds) == 0)
+ time_unit = ERL_NIF_MSEC;
+ else if (enif_compare(argv[0], atom_micro_seconds) == 0)
+ time_unit = ERL_NIF_USEC;
+ else if (enif_compare(argv[0], atom_nano_seconds) == 0)
+ time_unit = ERL_NIF_NSEC;
+ else
+ time_unit = 4711; /* invalid time unit */
+ return enif_make_int64(env, enif_time_offset(time_unit));
+}
+
+static ERL_NIF_TERM convert_time_unit(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ ErlNifSInt64 i64;
+ ErlNifTime val;
+ ErlNifTimeUnit from, to;
+
+ if (argc != 3)
+ return atom_false;
+
+ if (!enif_get_int64(env, argv[0], &i64))
+ return enif_make_badarg(env);
+
+ val = (ErlNifTime) i64;
+
+ if (enif_compare(argv[1], atom_seconds) == 0)
+ from = ERL_NIF_SEC;
+ else if (enif_compare(argv[1], atom_milli_seconds) == 0)
+ from = ERL_NIF_MSEC;
+ else if (enif_compare(argv[1], atom_micro_seconds) == 0)
+ from = ERL_NIF_USEC;
+ else if (enif_compare(argv[1], atom_nano_seconds) == 0)
+ from = ERL_NIF_NSEC;
+ else
+ from = 4711; /* invalid time unit */
+
+ if (enif_compare(argv[2], atom_seconds) == 0)
+ to = ERL_NIF_SEC;
+ else if (enif_compare(argv[2], atom_milli_seconds) == 0)
+ to = ERL_NIF_MSEC;
+ else if (enif_compare(argv[2], atom_micro_seconds) == 0)
+ to = ERL_NIF_USEC;
+ else if (enif_compare(argv[2], atom_nano_seconds) == 0)
+ to = ERL_NIF_NSEC;
+ else
+ to = 4711; /* invalid time unit */
+
+ return enif_make_int64(env, enif_convert_time_unit(val, from, to));
+}
+
static ErlNifFunc nif_funcs[] =
{
{"lib_version", 0, lib_version},
@@ -1954,7 +2043,10 @@ static ErlNifFunc nif_funcs[] =
{"make_map_update_nif", 3, make_map_update_nif},
{"make_map_remove_nif", 2, make_map_remove_nif},
{"maps_from_list_nif", 1, maps_from_list_nif},
- {"sorted_list_from_maps_nif", 1, sorted_list_from_maps_nif}
+ {"sorted_list_from_maps_nif", 1, sorted_list_from_maps_nif},
+ {"monotonic_time", 1, monotonic_time},
+ {"time_offset", 1, time_offset},
+ {"convert_time_unit", 3, convert_time_unit}
};
ERL_NIF_INIT(nif_SUITE,nif_funcs,load,reload,upgrade,unload)