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-rw-r--r--lib/stdlib/src/c.erl59
1 files changed, 45 insertions, 14 deletions
diff --git a/lib/stdlib/src/c.erl b/lib/stdlib/src/c.erl
index c2256c0cf9..a8844d757d 100644
--- a/lib/stdlib/src/c.erl
+++ b/lib/stdlib/src/c.erl
@@ -3,16 +3,17 @@
%%
%% Copyright Ericsson AB 1996-2013. 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/.
+%% 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
%%
-%% 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.
+%% 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%
%%
@@ -27,7 +28,7 @@
lc_batch/0, lc_batch/1,
i/3,pid/3,m/0,m/1,
bt/1, q/0,
- erlangrc/0,erlangrc/1,bi/1, flush/0, regs/0,
+ erlangrc/0,erlangrc/1,bi/1, flush/0, regs/0, uptime/0,
nregs/0,pwd/0,ls/0,ls/1,cd/1,memory/1,memory/0, xm/1]).
-export([display_info/1]).
@@ -65,6 +66,7 @@ help() ->
"q() -- quit - shorthand for init:stop()\n"
"regs() -- information about registered processes\n"
"nregs() -- information about all registered processes\n"
+ "uptime() -- print node uptime\n"
"xm(M) -- cross reference check a module\n"
"y(File) -- generate a Yecc parser\n">>).
@@ -509,9 +511,12 @@ m(M) ->
{exports,E} = lists:keyfind(exports, 1, L),
Time = get_compile_time(L),
COpts = get_compile_options(L),
- format("Module ~w compiled: ",[M]), print_time(Time),
- format("Compiler options: ~p~n", [COpts]),
+ format("Module: ~w~n", [M]),
+ print_md5(L),
+ format("Compiled: "),
+ print_time(Time),
print_object_file(M),
+ format("Compiler options: ~p~n", [COpts]),
format("Exports: ~n",[]), print_exports(keysort(1, E)).
print_object_file(Mod) ->
@@ -522,6 +527,12 @@ print_object_file(Mod) ->
ignore
end.
+print_md5(L) ->
+ case lists:keyfind(md5, 1, L) of
+ {md5,<<MD5:128>>} -> io:format("MD5: ~.16b~n",[MD5]);
+ _ -> ok
+ end.
+
get_compile_time(L) ->
case get_compile_info(L, time) of
{ok,Val} -> Val;
@@ -569,8 +580,8 @@ split_print_exports([{F1, A1}|T1], [{F2, A2} | T2]) ->
split_print_exports([], []) -> ok.
print_time({Year,Month,Day,Hour,Min,_Secs}) ->
- format("Date: ~s ~w ~w, ", [month(Month),Day,Year]),
- format("Time: ~.2.0w.~.2.0w~n", [Hour,Min]);
+ format("~s ~w ~w, ", [month(Month),Day,Year]),
+ format("~.2.0w:~.2.0w~n", [Hour,Min]);
print_time(notime) ->
format("No compile time info available~n",[]).
@@ -765,6 +776,26 @@ memory() -> erlang:memory().
memory(TypeSpec) -> erlang:memory(TypeSpec).
%%
+%% uptime/0
+%%
+
+-spec uptime() -> 'ok'.
+
+uptime() ->
+ io:format("~s~n", [uptime(get_uptime())]).
+
+uptime({D, {H, M, S}}) ->
+ lists:flatten(
+ [[ io_lib:format("~p days, ", [D]) || D > 0 ],
+ [ io_lib:format("~p hours, ", [H]) || D+H > 0 ],
+ [ io_lib:format("~p minutes and ", [M]) || D+H+M > 0 ],
+ io_lib:format("~p seconds", [S])]).
+
+get_uptime() ->
+ {UpTime, _} = erlang:statistics(wall_clock),
+ calendar:seconds_to_daystime(UpTime div 1000).
+
+%%
%% Cross Reference Check
%%
%%-spec xm(module() | file:filename()) -> xref:m/1 return