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

1 files changed, 14 insertions, 8 deletions

diff --git a/lib/stdlib/src/dets.erl b/lib/stdlib/src/dets.erl
index a4bd45ea19..5d365ac962 100644
--- a/lib/stdlib/src/dets.erl
+++ b/lib/stdlib/src/dets.erl
@@ -1963,7 +1963,7 @@ do_safe_fixtable(Head, Pid, true) ->
     case Head#head.fixed of 
 	false -> 
 	    link(Pid),
-	    Fixed = {erlang:now(), [{Pid, 1}]},
+	    Fixed = {utime_now(), [{Pid, 1}]},
 	    Ftab = dets_utils:get_freelists(Head),
 	    Head#head{fixed = Fixed, freelists = {Ftab, Ftab}};
 	{TimeStamp, Counters} ->
@@ -3088,14 +3088,14 @@ update_cache(Head, ToAdd) ->
 	    {Head1, Found, []};
 	Cache#cache.wrtime =:= undefined ->
 	    %% Empty cache. Schedule a delayed write.
-	    Now = now(), Me = self(),
+	    Now = time_now(), Me = self(),
 	    Call = ?DETS_CALL(Me, {delayed_write, Now}),
 	    erlang:send_after(Cache#cache.delay, Me, Call),
 	    {Head1#head{cache = NewCache#cache{wrtime = Now}}, Found, []};
 	Size0 =:= 0 ->
 	    %% Empty cache that has been written after the
 	    %% currently scheduled delayed write.
-	    {Head1#head{cache = NewCache#cache{wrtime = now()}}, Found, []};
+	    {Head1#head{cache = NewCache#cache{wrtime = time_now()}}, Found, []};
 	true ->
 	    %% Cache is not empty, delayed write has been scheduled.
 	    {Head1, Found, []}
@@ -3158,11 +3158,7 @@ delayed_write(Head, WrTime) ->
 		    Head#head{cache = NewCache};
 		true ->
 		    %% Yes, schedule a new delayed write.
-		    {MS1,S1,M1} = WrTime,
-		    {MS2,S2,M2} = LastWrTime,
-		    WrT = M1+1000000*(S1+1000000*MS1),
-		    LastWrT = M2+1000000*(S2+1000000*MS2),
-		    When = round((LastWrT - WrT)/1000), Me = self(),
+		    When = round((LastWrTime - WrTime)/1000), Me = self(),
 		    Call = ?DETS_CALL(Me, {delayed_write, LastWrTime}),
 		    erlang:send_after(When, Me, Call),
 		    Head
@@ -3274,6 +3270,16 @@ err(Error) ->
 	    Error
     end.
 
+-compile({inline, [time_now/0]}).
+time_now() ->
+    erlang:monotonic_time(1000000).
+
+-compile({inline, [utime_now/0]}).
+utime_now() ->
+    Time = time_now(),
+    UniqueCounter = erlang:unique_integer([monotonic]),
+    {Time, UniqueCounter}.
+
 %%%%%%%%%%%%%%%%%  DEBUG functions %%%%%%%%%%%%%%%%
 
 file_info(FileName) ->