%% -*- erlang-indent-level: 2 -*-
%%
%% 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.
%%
%%====================================================================
%% Note: Uses the process keys:
%% hipe_time - Indicates what to time.
%% hipe_timers - A stack of timers.
%% {hipe_timer,T} - Delata times for named timers.
%% T - Acc times for all named timers T.
%%====================================================================
-module(hipe_timing).
-export([start/2, stop/2,
%% start_timer/0, stop_timer/1,
%% get_hipe_timer_val/1, set_hipe_timer_val/2,
%% start_hipe_timer/1, stop_hipe_timer/1,
start_optional_timer/2, stop_optional_timer/2]).
-include("../main/hipe.hrl").
%%=====================================================================
-spec start(string(), atom()) -> 'ok'.
start(Text, Mod) when is_atom(Mod) ->
Timers =
case get(hipe_timers) of
undefined -> [];
Ts -> Ts
end,
Space = [$| || _ <- Timers],
Total = start_timer(),
put(hipe_timers, [Total|Timers]),
?msg("[@~7w]" ++ Space ++ "> ~s~n", [Total,Text]).
-spec stop(string(), atom()) -> 'ok'.
stop(Text, Mod) when is_atom(Mod) ->
{Total,_Last} = erlang:statistics(runtime),
case get(hipe_timers) of
[StartTime|Timers] ->
Space = [$| || _ <- Timers],
put(hipe_timers,Timers),
?msg("[@~7w]" ++ Space ++ "< ~s: ~w~n", [Total, Text, Total-StartTime]);
_ ->
put(hipe_timers, []),
?msg("[@~7w]< ~s: ~w~n", [Total, Text, Total])
end.
-spec start_optional_timer(string(), atom()) -> 'ok'.
start_optional_timer(Text, Mod) ->
case get(hipe_time) of
true -> start(Text, Mod);
all -> start(Text, Mod);
Mod -> start(Text, Mod);
List when is_list(List) ->
case lists:member(Mod, List) of
true -> start(Text, Mod);
false -> ok
end;
_ -> ok
end.
-spec stop_optional_timer(string(), atom()) -> 'ok'.
stop_optional_timer(Text, Mod) ->
case get(hipe_time) of
true -> stop(Text, Mod);
all -> stop(Text, Mod);
Mod -> stop(Text, Mod);
List when is_list(List) ->
case lists:member(Mod, List) of
true -> stop(Text, Mod);
false -> ok
end;
_ -> ok
end.
-spec start_timer() -> non_neg_integer().
start_timer() ->
{Total, _Last} = erlang:statistics(runtime),
Total.
%% stop_timer(T) ->
%% {Total, _Last} = erlang:statistics(runtime),
%% Total - T.
%%
%% start_hipe_timer(Timer) ->
%% Time = erlang:statistics(runtime),
%% put({hipe_timer,Timer}, Time).
%%
%% stop_hipe_timer(Timer) ->
%% {T2, _} = erlang:statistics(runtime),
%% T1 =
%% case get({hipe_timer,Timer}) of
%% {T0, _} -> T0;
%% _ -> 0
%% end,
%% AccT =
%% case get(Timer) of
%% T when is_integer(T) -> T;
%% _ -> 0
%% end,
%% put(Timer,AccT+T2-T1).
%%
%% get_hipe_timer_val(Timer) ->
%% case get(Timer) of
%% T when is_integer(T) -> T;
%% _ -> 0
%% end.
%%
%% set_hipe_timer_val(Timer, Val) ->
%% put(Timer, Val).
