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Diffstat (limited to 'src/ranch_app.erl')
-rw-r--r-- | src/ranch_app.erl | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/ranch_app.erl b/src/ranch_app.erl new file mode 100644 index 0000000..0dc687c --- /dev/null +++ b/src/ranch_app.erl @@ -0,0 +1,53 @@ +%% Copyright (c) 2011-2012, Loïc Hoguin <[email protected]> +%% +%% Permission to use, copy, modify, and/or distribute this software for any +%% purpose with or without fee is hereby granted, provided that the above +%% copyright notice and this permission notice appear in all copies. +%% +%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +%% @private +-module(ranch_app). +-behaviour(application). + +-export([start/2, stop/1, profile_output/0]). %% API. + +-type application_start_type() :: normal + | {takeover, node()} | {failover, node()}. + +%% API. + +-spec start(application_start_type(), any()) -> {ok, pid()}. +start(_Type, _Args) -> + consider_profiling(), + ranch_sup:start_link(). + +-spec stop(any()) -> ok. +stop(_State) -> + ok. + +-spec profile_output() -> ok. +profile_output() -> + eprof:stop_profiling(), + eprof:log("procs.profile"), + eprof:analyze(procs), + eprof:log("total.profile"), + eprof:analyze(total). + +%% Internal. + +-spec consider_profiling() -> profiling | not_profiling. +consider_profiling() -> + case application:get_env(profile) of + {ok, true} -> + {ok, _Pid} = eprof:start(), + eprof:start_profiling([self()]); + _ -> + not_profiling + end. |