Merge branch 'rickard/time_api/OTP-11997'

* rickard/time_api/OTP-11997: (22 commits)
  Update primary bootstrap
  inets: Suppress deprecated warning on erlang:now/0
  inets: Cleanup of multiple copies of functions Add inets_lib with common functions used by multiple modules
  inets: Update comments
  Suppress deprecated warning on erlang:now/0
  Use new time API and be back-compatible in inets Remove unused functions and removed redundant test
  asn1 test SUITE: Eliminate use of now/0
  Disable deprecated warning on erlang:now/0 in diameter_lib
  Use new time API and be back-compatible in ssh
  Replace all calls to now/0 in CT with new time API functions
  test_server: Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  otp_SUITE: Warn for calls to erlang:now/0
  Replace usage of erlang:now() with usage of new API
  Multiple timer wheels
  Erlang based BIF timer implementation for scalability
  Implement ethread events with timeout
  ...

Conflicts:
	bootstrap/bin/start.boot
	bootstrap/bin/start_clean.boot
	bootstrap/lib/compiler/ebin/beam_asm.beam
	bootstrap/lib/compiler/ebin/compile.beam
	bootstrap/lib/kernel/ebin/auth.beam
	bootstrap/lib/kernel/ebin/dist_util.beam
	bootstrap/lib/kernel/ebin/global.beam
	bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
	bootstrap/lib/kernel/ebin/inet_db.beam
	bootstrap/lib/kernel/ebin/inet_dns.beam
	bootstrap/lib/kernel/ebin/inet_res.beam
	bootstrap/lib/kernel/ebin/os.beam
	bootstrap/lib/kernel/ebin/pg2.beam
	bootstrap/lib/stdlib/ebin/dets.beam
	bootstrap/lib/stdlib/ebin/dets_utils.beam
	bootstrap/lib/stdlib/ebin/erl_tar.beam
	bootstrap/lib/stdlib/ebin/escript.beam
	bootstrap/lib/stdlib/ebin/file_sorter.beam
	bootstrap/lib/stdlib/ebin/otp_internal.beam
	bootstrap/lib/stdlib/ebin/qlc.beam
	bootstrap/lib/stdlib/ebin/random.beam
	bootstrap/lib/stdlib/ebin/supervisor.beam
	bootstrap/lib/stdlib/ebin/timer.beam
	erts/aclocal.m4
	erts/emulator/beam/bif.c
	erts/emulator/beam/erl_bif_info.c
	erts/emulator/beam/erl_db_hash.c
	erts/emulator/beam/erl_init.c
	erts/emulator/beam/erl_process.h
	erts/emulator/beam/erl_thr_progress.c
	erts/emulator/beam/utils.c
	erts/emulator/sys/unix/sys.c
	erts/preloaded/ebin/erlang.beam
	erts/preloaded/ebin/erts_internal.beam
	erts/preloaded/ebin/init.beam
	erts/preloaded/src/erts_internal.erl
	lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl
	lib/diameter/src/base/diameter_lib.erl
	lib/kernel/src/os.erl
	lib/ssh/test/ssh_basic_SUITE.erl
	system/doc/efficiency_guide/advanced.xml

14 files changed, 165 insertions, 196 deletions

diff --git a/lib/inets/examples/httpd_load_test/hdlt_random_html.erl b/lib/inets/examples/httpd_load_test/hdlt_random_html.erl
index e3a572c61f..c55de628c1 100644
--- a/lib/inets/examples/httpd_load_test/hdlt_random_html.erl
+++ b/lib/inets/examples/httpd_load_test/hdlt_random_html.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2010. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2015. 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
@@ -19,6 +19,7 @@
 %%
 
 -module(hdlt_random_html). 
+-compile([{nowarn_deprecated_function,{erlang,now,0}}]).
 -export([page/3]). 
 
 page(SessionID, _Env, Input) -> 
@@ -48,7 +49,15 @@ stop() ->
 ". 
  
 content(WorkSim, SzSim) ->  
-    {A, B, C} = now(),  
+    %% Adapt to OTP 18 erlang time API and be backwards compatible
+    {A, B, C} = try
+                    {erlang:phash2([node()]),
+                     erlang:monotonic_time(),
+                     erlang:unique_integer()}
+                catch
+                    error:undef ->
+                        erlang:now()
+                end,
     random:seed(A, B, C),  
     lists:sort([random:uniform(X) || X <- lists:seq(1, WorkSim)]),  
     lists:flatten(lists:duplicate(SzSim, "Dummy data ")). 
diff --git a/lib/inets/src/ftp/ftp.erl b/lib/inets/src/ftp/ftp.erl
index 8e51b1be5a..361a775024 100644
--- a/lib/inets/src/ftp/ftp.erl
+++ b/lib/inets/src/ftp/ftp.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. 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
@@ -21,6 +21,7 @@
 %% It also supports ipv6 RFC 2428 and starttls RFC 4217.
 
 -module(ftp).
+-compile([{nowarn_deprecated_function,{erlang,now,0}}]).
 
 -behaviour(gen_server).
 -behaviour(inets_service).
@@ -2176,16 +2177,23 @@ handle_caller(#state{caller = {transfer_data, {Cmd, Bin, RemoteFile}}} =
 %% Connect to FTP server at Host (default is TCP port 21) 
 %% in order to establish a control connection.
 setup_ctrl_connection(Host, Port, Timeout, State) ->
-    MsTime = millisec_time(),
+    %% Adapt to OTP 18 erlang time API and be backwards compatible
+    MsTime = try
+                 erlang:monotonic_time()
+             catch
+                 error:undef ->
+                     %% Use Erlang system time as monotonic time
+                     erlang:now()
+             end,
     case connect(Host, Port, Timeout, State) of
 	{ok, IpFam, CSock} ->
 	    NewState = State#state{csock = {tcp, CSock}, ipfamily = IpFam},
 	    activate_ctrl_connection(NewState),
-	    case Timeout - (millisec_time() - MsTime) of
+	    case Timeout - inets_lib:millisec_passed(MsTime) of
 		Timeout2 when (Timeout2 >= 0) ->
 		    {ok, NewState#state{caller = open}, Timeout2};
 		_ ->
-		    %% Oups: Simulate timeout
+                    %% Oups: Simulate timeout
 		    {ok, NewState#state{caller = open}, 0}
 	    end;
 	Error ->
@@ -2501,10 +2509,6 @@ progress_report(Report,  #state{progress = ProgressPid}) ->
     ftp_progress:report(ProgressPid, Report).
 
 
-millisec_time() ->
-    {A,B,C} = erlang:now(),
-    A*1000000000+B*1000+(C div 1000).
-
 peername({tcp, Socket}) -> inet:peername(Socket);
 peername({ssl, Socket}) -> ssl:peername(Socket).
 
diff --git a/lib/inets/src/inets_app/Makefile b/lib/inets/src/inets_app/Makefile
index 22426eee79..5d3f652441 100644
--- a/lib/inets/src/inets_app/Makefile
+++ b/lib/inets/src/inets_app/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2005-2012. All Rights Reserved.
+# Copyright Ericsson AB 2005-2015. 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
@@ -47,7 +47,8 @@ MODULES = \
 	inets_app \
 	inets_sup \
 	inets_regexp \
-	inets_trace
+	inets_trace \
+	inets_lib
 
 INTERNAL_HRL_FILES = inets_internal.hrl
 EXTERNAL_HRL_FILES = ../../include/httpd.hrl \
diff --git a/lib/inets/src/inets_app/inets.app.src b/lib/inets/src/inets_app/inets.app.src
index 9eae962d03..01d4cefc55 100644
--- a/lib/inets/src/inets_app/inets.app.src
+++ b/lib/inets/src/inets_app/inets.app.src
@@ -1,7 +1,7 @@
 %% This is an -*- erlang -*- file.
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. 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
@@ -26,7 +26,8 @@
             inets_app,
 	    inets_service,	                  
 	    inets_regexp,	                  
-	    inets_trace,	                  
+	    inets_trace,
+            inets_lib,
 
             %% FTP
             ftp,
diff --git a/lib/inets/src/inets_app/inets_lib.erl b/lib/inets/src/inets_app/inets_lib.erl
new file mode 100644
index 0000000000..11d3bac6bb
--- /dev/null
+++ b/lib/inets/src/inets_app/inets_lib.erl
@@ -0,0 +1,50 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015-2015. 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.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(inets_lib).
+-compile([{nowarn_deprecated_function,{erlang,now,0}}]).
+
+-export([millisec_passed/1, formated_timestamp/0, format_timestamp/1]).
+
+
+
+%% Help function, elapsed milliseconds since T0
+millisec_passed({_,_,_} = T0 ) ->
+    %% OTP 17 and earlier
+    timer:now_diff(erlang:now(), T0) div 1000;
+
+millisec_passed(T0) ->
+    %% OTP 18
+    erlang:convert_time_unit(erlang:monotonic_time() - T0,
+			     native,
+			     micro_seconds) div 1000.
+
+%% Return formated time stamp (e.g. 2015:03:16 10:05:23 1234)
+formated_timestamp() ->
+    format_timestamp( os:timestamp() ).
+
+%% Return formated time stamp (e.g. 2015:03:16 10:05:23 1234)
+format_timestamp({_N1, _N2, N3} = Tme) ->
+    {Date, Time}   = calendar:now_to_datetime(Tme),
+    {YYYY,MM,DD}   = Date,
+    {Hour,Min,Sec} = Time,
+    FormatDate =
+        io_lib:format("~.4w:~.2.0w:~.2.0w ~.2.0w:~.2.0w:~.2.0w 4~w",
+                      [YYYY,MM,DD,Hour,Min,Sec,round(N3/1000)]),
+    lists:flatten(FormatDate).
diff --git a/lib/inets/src/inets_app/inets_trace.erl b/lib/inets/src/inets_app/inets_trace.erl
index 8911f65897..cb6d6d8bdb 100644
--- a/lib/inets/src/inets_app/inets_trace.erl
+++ b/lib/inets/src/inets_app/inets_trace.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2011-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2011-2015. 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
@@ -228,21 +228,24 @@ handle_trace({trace_ts, _Who, call,
                [_Sev, "stop trace", stop_trace, [stop_trace]]},
               Timestamp},
              {_, standard_io} = Fd) ->
-    (catch io:format(standard_io, "stop trace at ~s~n", [format_timestamp(Timestamp)])),
+    (catch io:format(standard_io, "stop trace at ~s~n",
+                     [inets_lib:format_timestamp(Timestamp)])),
     Fd;
 handle_trace({trace_ts, _Who, call,
               {?MODULE, report_event,
                [_Sev, "stop trace", stop_trace, [stop_trace]]},
               Timestamp},
              standard_io = Fd) ->
-    (catch io:format(Fd, "stop trace at ~s~n", [format_timestamp(Timestamp)])),
+    (catch io:format(Fd, "stop trace at ~s~n",
+                     [inets_lib:format_timestamp(Timestamp)])),
     Fd;
 handle_trace({trace_ts, _Who, call,
               {?MODULE, report_event,
                [_Sev, "stop trace", stop_trace, [stop_trace]]},
               Timestamp},
              {_Service, Fd}) ->
-    (catch io:format(Fd, "stop trace at ~s~n", [format_timestamp(Timestamp)])),
+    (catch io:format(Fd, "stop trace at ~s~n",
+                     [inets_lib:format_timestamp(Timestamp)])),
     (catch file:close(Fd)),
     closed_file;
 handle_trace({trace_ts, _Who, call,
@@ -250,7 +253,8 @@ handle_trace({trace_ts, _Who, call,
                [_Sev, "stop trace", stop_trace, [stop_trace]]},
               Timestamp},
              Fd) ->
-    (catch io:format(Fd, "stop trace at ~s~n", [format_timestamp(Timestamp)])),
+    (catch io:format(Fd, "stop trace at ~s~n",
+                     [inets_lib:format_timestamp(Timestamp)])),
     (catch file:close(Fd)),
     closed_file;
 handle_trace({trace_ts, Who, call,
@@ -280,7 +284,7 @@ print_inets_trace(Fd, Sev, Timestamp, Who, Label, Service, Content) ->
     do_print_inets_trace(Fd, Sev, Timestamp, Who, Label, Service, Content).
 
 do_print_inets_trace(Fd, Sev, Timestamp, Who, Label, Service, Content) ->
-    Ts = format_timestamp(Timestamp),
+    Ts = inets_lib:format_timestamp(Timestamp),
     io:format(Fd, "[inets ~w trace ~w ~w ~s] ~s "
               "~n   Content: ~p"
               "~n",
@@ -307,7 +311,7 @@ do_print_trace(Fd, {trace, Who, What, Where, Extra}) ->
               "~n", [Who, What, Where, Extra]);
 
 do_print_trace(Fd, {trace_ts, Who, What, Where, When}) ->
-    Ts = format_timestamp(When),
+    Ts = inets_lib:format_timestamp(When),
     io:format(Fd, "[trace ~s]"
               "~n   Who:   ~p"
               "~n   What:  ~p"
@@ -315,7 +319,7 @@ do_print_trace(Fd, {trace_ts, Who, What, Where, When}) ->
               "~n", [Ts, Who, What, Where]);
 
 do_print_trace(Fd, {trace_ts, Who, What, Where, Extra, When}) ->
-    Ts = format_timestamp(When),
+    Ts = inets_lib:format_timestamp(When),
     io:format(Fd, "[trace ~s]"
               "~n   Who:   ~p"
               "~n   What:  ~p"
@@ -330,7 +334,7 @@ do_print_trace(Fd, {seq_trace, What, Where}) ->
               "~n", [What, Where]);
 
 do_print_trace(Fd, {seq_trace, What, Where, When}) ->
-    Ts = format_timestamp(When),
+    Ts = inets_lib:format_timestamp(When),
     io:format(Fd, "[seq trace ~s]"
               "~n   What:       ~p"
               "~n   Where:      ~p"
@@ -345,13 +349,3 @@ do_print_trace(Fd, Trace) ->
               "~n", [Trace]).
 
 
-format_timestamp({_N1, _N2, N3} = Now) ->
-    {Date, Time}   = calendar:now_to_datetime(Now),
-    {YYYY,MM,DD}   = Date,
-    {Hour,Min,Sec} = Time,
-    FormatDate =
-        io_lib:format("~.4w:~.2.0w:~.2.0w ~.2.0w:~.2.0w:~.2.0w 4~w",
-                      [YYYY,MM,DD,Hour,Min,Sec,round(N3/1000)]),
-    lists:flatten(FormatDate).
-
-
diff --git a/lib/inets/src/tftp/tftp_logger.erl b/lib/inets/src/tftp/tftp_logger.erl
index 0c3620e665..104d6a91c6 100644
--- a/lib/inets/src/tftp/tftp_logger.erl
+++ b/lib/inets/src/tftp/tftp_logger.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2008-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2015. 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
@@ -18,6 +18,7 @@
 %%
 %%
 -module(tftp_logger).
+-compile([{nowarn_deprecated_function,{erlang,now,0}}]).
 
 %%-------------------------------------------------------------------
 %% Interface
@@ -84,7 +85,13 @@ info_msg(Format, Data) ->
 %%-------------------------------------------------------------------
 
 add_timestamp(Format, Data) ->
-    Now = {_MegaSecs, _Secs, _MicroSecs} = erlang:now(),
+    %% Adapt to new OTP 18 erlang time API and be backwards compatible
+    Now = try
+              erlang:timestamp()
+          catch
+              error:undef ->
+                  erlang:now()
+          end,
     {{_Y, _Mo, _D}, {H, Mi, S}} = calendar:now_to_universal_time(Now),
     %% {"~p-~s-~sT~s:~s:~sZ,~6.6.0w tftp: " ++ Format ++ "\n", 
     %%  [Y, t(Mo), t(D), t(H), t(Mi), t(S), MicroSecs | Data]}.
diff --git a/lib/inets/src/tftp/tftp_sup.erl b/lib/inets/src/tftp/tftp_sup.erl
index 1cafcc1069..3065279515 100644
--- a/lib/inets/src/tftp/tftp_sup.erl
+++ b/lib/inets/src/tftp/tftp_sup.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2005-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2015. 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
@@ -22,6 +22,7 @@
 %%----------------------------------------------------------------------
 
 -module(tftp_sup).
+-compile([{nowarn_deprecated_function,{erlang,now,0}}]).
 
 -behaviour(supervisor).
 
@@ -93,7 +94,17 @@ unique_name(Options) ->
 	{value, {_, Port}} when is_integer(Port), Port > 0 -> 
 	    {tftpd, Port};
 	_ ->
-	    {tftpd, erlang:now()}
+	    {tftpd, unique_integer()}
+    end.
+
+unique_integer() ->
+    %% Adapt to OTP 18 erlang time API and be backwards compatible
+    try
+	erlang:unique_integer([positive])
+    catch
+	error:undef ->
+	    {MS, S, US} = erlang:now(),
+	    (MS*1000000+S)*1000000+US
     end.
 
 default_kill_after() ->
diff --git a/lib/inets/test/ftp_suite_lib.erl b/lib/inets/test/ftp_suite_lib.erl
index daee1bdcdc..5ae9eb736e 100644
--- a/lib/inets/test/ftp_suite_lib.erl
+++ b/lib/inets/test/ftp_suite_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2005-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2015. 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
@@ -29,6 +29,7 @@
 % -export([init_per_testcase/2, end_per_testcase/2]).
 
 -compile(export_all).
+-compile([{nowarn_deprecated_function,{erlang,now,0}}]).
 
 
 -record(progress, {
@@ -1352,9 +1353,15 @@ do_delete(Pid, Config) ->
     ok.
 
 do_mkdir(Pid) ->
-    {A, B, C} = erlang:now(),
-    NewDir = "nisse_" ++ integer_to_list(A) ++ "_" ++
-	integer_to_list(B) ++ "_" ++ integer_to_list(C),
+    %% Adapt to OTP 18 erlang time API and be backwards compatible
+    NewDir = try
+                 "earl_" ++ integer_to_list(erlang:unique_integer([positive]))
+             catch
+                 error:undef ->
+                     {A, B, C} = erlang:now(),
+                     "nisse_" ++ integer_to_list(A) ++ "_" ++
+                         integer_to_list(B) ++ "_" ++ integer_to_list(C)
+             end,
     ok = ftp:cd(Pid, "incoming"),
     {ok, CurrDir} = ftp:pwd(Pid),
     {error, efnamena} = ftp:mkdir(Pid, NewDir++"\r\nCWD ."),
diff --git a/lib/inets/test/httpc_SUITE.erl b/lib/inets/test/httpc_SUITE.erl
index 0e89e831fb..2193588031 100644
--- a/lib/inets/test/httpc_SUITE.erl
+++ b/lib/inets/test/httpc_SUITE.erl
@@ -31,6 +31,7 @@
 -include("httpc_internal.hrl").
 %% Note: This directive should only be used in test suites.
 -compile(export_all).
+-compile([{nowarn_deprecated_function,{erlang,now,0}}]).
 
 -define(URL_START, "http://").
 -define(TLS_URL_START, "https://").
@@ -1933,12 +1934,19 @@ run_clients(NumClients, ServerPort, SeqNumServer) ->
 wait4clients([], _Timeout) ->
     ok;
 wait4clients(Clients, Timeout) when Timeout > 0 ->
-    Time = now_ms(),
+    %% Adapt to OTP 18 erlang time API and be backwards compatible
+    Time = try
+                 erlang:monotonic_time()
+             catch
+                 error:undef ->
+                     %% Use Erlang system time as monotonic time
+                     erlang:now()
+             end,
     receive
 	{'DOWN', _MRef, process, Pid, normal} ->
 	    {value, {Id, _, _}} = lists:keysearch(Pid, 2, Clients),
 	    NewClients = lists:keydelete(Id, 1, Clients),
-	    wait4clients(NewClients, Timeout - (now_ms() - Time));
+	    wait4clients(NewClients, Timeout - inets_lib:millisec_passed(Time));
 	{'DOWN', _MRef, process, Pid, Reason} ->
 	    {value, {Id, _, _}} = lists:keysearch(Pid, 2, Clients),
 	    ct:fail({bad_client_termination, Id, Reason})
@@ -2031,14 +2039,16 @@ parse_connection_type(Request) ->
 	"keep-alive" -> keep_alive
     end.
 
-%% Time in milli seconds
-now_ms() ->
-    {A,B,C} = erlang:now(),
-    A*1000000000+B*1000+(C div 1000).
-
 set_random_seed() ->
-    {_, _, Micros} = now(),
-    A = erlang:phash2([make_ref(), self(), Micros]),
+    %% Adapt to OTP 18 erlang time API and be backwards compatible
+    Unique = try
+	erlang:unique_integer()
+    catch
+	error:undef ->
+	    {MS, S, US} = erlang:now(),
+	    (MS*1000000+S)*1000000+US
+    end,
+    A = erlang:phash2([make_ref(), self(), Unique]),
     random:seed(A, A, A).
 
 
diff --git a/lib/inets/test/httpd_time_test.erl b/lib/inets/test/httpd_time_test.erl
index 0bb457f9b9..b3e6746a01 100644
--- a/lib/inets/test/httpd_time_test.erl
+++ b/lib/inets/test/httpd_time_test.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2001-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. 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
@@ -18,6 +18,7 @@
 %%
 %%
 -module(httpd_time_test).
+-compile([{nowarn_deprecated_function,{erlang,now,0}}]).
 
 -export([t/3, t1/2, t2/2, t4/2]).
 
@@ -116,13 +117,22 @@ main(N, SocketType, Host, Port, Time)
 loop(Pollers, Timeout) ->
     d("loop -> entry when"
       "~n   Timeout: ~p", [Timeout]),
-    Start = t(), 
+    %% Adapt to OTP 18 erlang time API and be backwards compatible
+    Start = try
+                erlang:monotonic_time(1000)
+            catch
+                error:undef ->
+                    %% Use Erlang system time as monotonic time
+                    {A,B,C} = erlang:now(),
+                    A*1000000000+B*1000+(C div 1000)
+            end,
+
     receive 
 	{'EXIT', Pid, {poller_stat_failure, SocketType, Host, Port, Time, Reason}} ->
 	    case is_poller(Pid, Pollers) of
 		true ->
 		    error_msg("received unexpected exit from poller ~p~n"
-			      "befor completion of test "
+			      "before completion of test "
 			      "after ~p micro sec"
 			      "~n   SocketType: ~p"
 			      "~n   Host:       ~p"
@@ -133,7 +143,7 @@ loop(Pollers, Timeout) ->
 		false ->
 		    error_msg("received unexpected ~p from ~p"
 			      "befor completion of test", [Reason, Pid]),
-		    loop(Pollers, to(Timeout, Start))
+		    loop(Pollers, Timeout - inets_lib:millisec_passed(Start))
 	    end;
 
 	{poller_stat_failure, Pid, {SocketType, Host, Port, Time, Reason}} ->
@@ -412,35 +422,6 @@ validate(ExpStatusCode, _SocketType, _Socket, Response) ->
     end.
 
 
-trash_the_rest(Socket, N) ->
-    receive
-	{ssl, Socket, Trash} ->
-            trash_the_rest(Socket, add(N,sz(Trash)));
-	{ssl_closed, Socket} ->
-	    N;
-	{ssl_error, Socket, Error} ->
-	    exit({connection_error, Error});
-	
-        {tcp, Socket, Trash} ->
-            trash_the_rest(Socket, add(N,sz(Trash)));
-        {tcp_closed, Socket} ->
-            N;
-	{tcp_error, Socket, Error} ->
-	    exit({connection_error, Error})
-
-    after 10000 ->
-            exit({connection_timed_out, N})
-    end.
-
-
-add(N1,N2) when is_integer(N1) andalso is_integer(N2) ->
-    N1 + N2;
-add(N1,_) when is_integer(N1) ->
-    N1;
-add(_,N2) when is_integer(N2) ->
-    N2.
-
-
 sz(L) when is_list(L) ->
     length(lists:flatten(L));
 sz(B) when is_binary(B) ->
@@ -505,17 +486,6 @@ status_to_message(Code) -> io_lib:format("Unknown status code: ~p",[Code]).
 
 %% ----------------------------------------------------------------
 
-to(To, Start) ->
-    To - (t() - Start).
-
-%% Time in milli seconds
-t() ->
-    {A,B,C} = erlang:now(),
-    A*1000000000+B*1000+(C div 1000).
-
-
-%% ----------------------------------------------------------------
-
 
 
 % close(Socket) ->
diff --git a/lib/inets/test/inets_SUITE.erl b/lib/inets/test/inets_SUITE.erl
index 6510c70d08..a07dc79c02 100644
--- a/lib/inets/test/inets_SUITE.erl
+++ b/lib/inets/test/inets_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. 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
@@ -549,25 +549,12 @@ tsf(Reason) ->
 tsp(F) ->
     tsp(F, []).
 tsp(F, A) ->
-    Timestamp = formated_timestamp(), 
+    Timestamp = inets_lib:formated_timestamp(),
     test_server:format("** ~s ** ~p ~p:" ++ F ++ "~n", [Timestamp, self(), ?MODULE | A]).
 
 i(F) ->
     i(F, []).
 
 i(F, A) ->
-    Timestamp = formated_timestamp(), 
+    Timestamp = inets_lib:formated_timestamp(),
     io:format("*** ~s ~w:" ++ F ++ "~n", [Timestamp, ?MODULE | A]).
-
-formated_timestamp() ->
-    format_timestamp( os:timestamp() ).
-
-format_timestamp({_N1, _N2, N3} = Now) ->
-    {Date, Time}   = calendar:now_to_datetime(Now),
-    {YYYY,MM,DD}   = Date,
-    {Hour,Min,Sec} = Time,
-    FormatDate =
-        io_lib:format("~.4w:~.2.0w:~.2.0w ~.2.0w:~.2.0w:~.2.0w 4~w",
-                      [YYYY,MM,DD,Hour,Min,Sec,round(N3/1000)]),
-    lists:flatten(FormatDate).
-
diff --git a/lib/inets/test/inets_app_test.erl b/lib/inets/test/inets_app_test.erl
index eabfa69f7c..22d6e25c87 100644
--- a/lib/inets/test/inets_app_test.erl
+++ b/lib/inets/test/inets_app_test.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2002-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2002-2015. 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
@@ -32,19 +32,6 @@
 
 
 %% Test server callbacks
-init_per_testcase(undef_funcs, Config) ->
-    NewConfig = lists:keydelete(watchdog, 1, Config),
-    Dog = test_server:timetrap(inets_test_lib:minutes(10)),
-
-    %% We need to check if there is a point to run this test.
-    %% On some platforms, crypto will not build, which in turn
-    %% causes ssl to not build (at this time, this will
-    %% change in the future).
-    %% So, we first check if we can start crypto, and if not,
-    %% we skip this test case!
-    ?ENSURE_STARTED(crypto),
-
-    [{watchdog, Dog}| NewConfig];
 init_per_testcase(_, Config) ->
     Config.
 
@@ -54,7 +41,7 @@ end_per_testcase(_Case, Config) ->
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 all() -> 
-    [fields, modules, exportall, app_depend, undef_funcs].
+    [fields, modules, exportall, app_depend].
 
 groups() -> 
     [].
@@ -244,56 +231,6 @@ check_apps([App|Apps]) ->
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-undef_funcs(suite) ->
-    [];
-undef_funcs(doc) ->
-    [];
-undef_funcs(Config) when is_list(Config) ->
-    App            = inets,
-    AppFile        = key1search(app_file, Config),
-    Mods           = key1search(modules, AppFile),
-    Root           = code:root_dir(),
-    LibDir         = code:lib_dir(App),
-    EbinDir        = filename:join([LibDir,"ebin"]),
-    XRefTestName   = undef_funcs_make_name(App, xref_test_name),
-    {ok, XRef}     = xref:start(XRefTestName),
-    ok             = xref:set_default(XRef, 
-				      [{verbose,false},{warnings,false}]),
-    XRefName       = undef_funcs_make_name(App, xref_name),
-    {ok, XRefName} = xref:add_release(XRef, Root, {name, XRefName}),
-    {ok, App}      = xref:replace_application(XRef, App, EbinDir),
-    {ok, Undefs}   = xref:analyze(XRef, undefined_function_calls),
-    xref:stop(XRef),
-    analyze_undefined_function_calls(Undefs, Mods, []).
-
-analyze_undefined_function_calls([], _, []) ->
-    ok;
-analyze_undefined_function_calls([], _, AppUndefs) ->
-    exit({suite_failed, {undefined_function_calls, AppUndefs}});
-analyze_undefined_function_calls([{{Mod, _F, _A}, _C} = AppUndef|Undefs], 
-				 AppModules, AppUndefs) ->
-    %% Check that this module is our's
-    case lists:member(Mod,AppModules) of
-	true ->
-	    {Calling,Called} = AppUndef,
-	    {Mod1,Func1,Ar1} = Calling,
-	    {Mod2,Func2,Ar2} = Called,
-	    io:format("undefined function call: "
-		      "~n   ~w:~w/~w calls ~w:~w/~w~n", 
-		      [Mod1,Func1,Ar1,Mod2,Func2,Ar2]),
-	    analyze_undefined_function_calls(Undefs, AppModules, 
-					     [AppUndef|AppUndefs]);
-	false ->
-	    io:format("dropping ~p~n", [Mod]),
-	    analyze_undefined_function_calls(Undefs, AppModules, AppUndefs)
-    end.
-
-%% This function is used simply to avoid cut-and-paste errors later...
-undef_funcs_make_name(App, PostFix) ->
-    list_to_atom(atom_to_list(App) ++ "_" ++ atom_to_list(PostFix)).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
 
 fail(Reason) ->
     exit({suite_failed, Reason}).
diff --git a/lib/inets/test/inets_test_lib.erl b/lib/inets/test/inets_test_lib.erl
index 4be9d9c8b3..7485971d3e 100644
--- a/lib/inets/test/inets_test_lib.erl
+++ b/lib/inets/test/inets_test_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2001-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. 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
@@ -498,13 +498,6 @@ close(essl,Socket) ->
 close(ip_comm,Socket) ->
     catch gen_tcp:close(Socket).
 
-millis() ->
-    erlang:now().
-
-millis_diff(A,B) ->
-    T1 = (element(1,A)*1000000) + element(2,A) + (element(3,A)/1000000),
-    T2 = (element(1,B)*1000000) + element(2,B) + (element(3,B)/1000000),
-    T1 - T2.
 
 hours(N)   -> trunc(N * 1000 * 60 * 60).
 minutes(N) -> trunc(N * 1000 * 60).
@@ -546,7 +539,7 @@ flush() ->
 tsp(F) ->
     tsp(F, []).
 tsp(F, A) ->
-    Timestamp = formated_timestamp(), 
+    Timestamp = inets_lib:formated_timestamp(),
     ct:pal("*** ~s ~p ~p " ++ F ++ "~n", 
 		       [Timestamp, node(), self() | A]).
 
@@ -559,18 +552,6 @@ tss(Time) ->
 timestamp() ->
     http_util:timestamp().
 
-formated_timestamp() ->
-    format_timestamp( os:timestamp() ).
-
-format_timestamp({_N1, _N2, N3} = Now) ->
-    {Date, Time}   = calendar:now_to_datetime(Now),
-    {YYYY,MM,DD}   = Date,
-    {Hour,Min,Sec} = Time,
-    FormatDate =
-        io_lib:format("~.4w:~.2.0w:~.2.0w ~.2.0w:~.2.0w:~.2.0w 4~w",
-                      [YYYY,MM,DD,Hour,Min,Sec,round(N3/1000)]),
-    lists:flatten(FormatDate).
-
 start_apps(Apps) ->
     lists:foreach(fun(App) ->
 			  application:stop(App),