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-rw-r--r--erts/emulator/test/driver_SUITE.erl58
1 files changed, 27 insertions, 31 deletions
diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl
index 623d62f876..4211c49848 100644
--- a/erts/emulator/test/driver_SUITE.erl
+++ b/erts/emulator/test/driver_SUITE.erl
@@ -3,16 +3,17 @@
%%
%% 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
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
%%
%% %CopyrightEnd%
@@ -390,12 +391,12 @@ timer_measure(Config) when is_list(Config) ->
try_timeouts(_, 0) -> ok;
try_timeouts(Port, Timeout) ->
- ?line TimeBefore = now(),
+ ?line TimeBefore = erlang:monotonic_time(),
?line erlang:port_command(Port, <<?START_TIMER,Timeout:32>>),
receive
{Port,{data,[?TIMER]}} ->
?line Elapsed = erl_millisecs() - erl_millisecs(TimeBefore),
- io:format("Elapsed: ~p Timeout: ~p\n", [Elapsed,Timeout]),
+ io:format("Elapsed: ~p Timeout: ~p\n", [Elapsed, Timeout]),
if
Elapsed < Timeout ->
?line ?t:fail(too_short);
@@ -455,7 +456,7 @@ timer_delay(Config) when is_list(Config) ->
Name = 'timer_drv',
?line Port = start_driver(Config, Name, false),
- ?line TimeBefore = now(),
+ ?line TimeBefore = erlang:monotonic_time(),
Timeout0 = 350,
?line erlang:port_command(Port, <<?DELAY_START_TIMER,Timeout0:32>>),
Timeout = Timeout0 +
@@ -499,7 +500,7 @@ timer_change(Config) when is_list(Config) ->
try_change_timer(_Port, 0) -> ok;
try_change_timer(Port, Timeout) ->
?line Timeout_3 = Timeout*3,
- ?line TimeBefore = now(),
+ ?line TimeBefore = erlang:monotonic_time(),
?line erlang:port_command(Port, <<?START_TIMER,Timeout_3:32>>),
?line erlang:port_command(Port, <<?START_TIMER,Timeout:32>>),
receive
@@ -2520,13 +2521,11 @@ uniform(N) ->
end,
random:uniform(N).
-%% return millisecs from statistics source
erl_millisecs() ->
- {Ms, S, Us} = erlang:now(),
- Ms * 1000000000 + S * 1000 + Us / 1000.
+ erl_millisecs(erlang:monotonic_time()).
-erl_millisecs({Ms,S,Us}) ->
- Ms * 1000000000 + S * 1000 + Us / 1000.
+erl_millisecs(MonotonicTime) ->
+ (1000*MonotonicTime)/erlang:convert_time_unit(1,seconds,native).
%% Start/stop drivers.
start_driver(Config, Name, Binary) ->
@@ -2575,18 +2574,15 @@ sleep(Ms) when is_integer(Ms), Ms >= 0 ->
start_node(Config) when is_list(Config) ->
- ?line Pa = filename:dirname(code:which(?MODULE)),
- ?line {A, B, C} = now(),
- ?line Name = list_to_atom(atom_to_list(?MODULE)
- ++ "-"
- ++ atom_to_list(?config(testcase, Config))
- ++ "-"
- ++ integer_to_list(A)
- ++ "-"
- ++ integer_to_list(B)
- ++ "-"
- ++ integer_to_list(C)),
- ?line ?t:start_node(Name, slave, [{args, "-pa "++Pa}]).
+ Pa = filename:dirname(code:which(?MODULE)),
+ Name = list_to_atom(atom_to_list(?MODULE)
+ ++ "-"
+ ++ atom_to_list(?config(testcase, Config))
+ ++ "-"
+ ++ integer_to_list(erlang:system_time(seconds))
+ ++ "-"
+ ++ integer_to_list(erlang:unique_integer([positive]))),
+ ?t:start_node(Name, slave, [{args, "-pa "++Pa}]).
stop_node(Node) ->
?t:stop_node(Node).