diff options
Diffstat (limited to 'lib/stdlib/src/c.erl')
| -rw-r--r-- | lib/stdlib/src/c.erl | 42 |
1 files changed, 32 insertions, 10 deletions
diff --git a/lib/stdlib/src/c.erl b/lib/stdlib/src/c.erl index 9860adf04d..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">>). @@ -774,6 +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 |