57 lines
1.4 KiB
Erlang
57 lines
1.4 KiB
Erlang
%%% @doc
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%%% front end web development lab
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%%% @end
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-module(fewd).
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-vsn("0.1.0").
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-behavior(application).
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-author("Peter Harpending <peterharpending@qpq.swiss>").
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-copyright("Peter Harpending <peterharpending@qpq.swiss>").
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-license("BSD-2-Clause-FreeBSD").
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-export([listen/1, ignore/0]).
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-export([start/2, stop/1]).
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-include("$zx_include/zx_logger.hrl").
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-spec listen(PortNum) -> Result
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when PortNum :: inet:port_num(),
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Result :: ok
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| {error, {listening, inet:port_num()}}.
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%% @doc
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%% Make the server start listening on a port.
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%% Returns an {error, Reason} tuple if it is already listening.
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listen(PortNum) ->
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fd_http:listen(PortNum).
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-spec ignore() -> ok.
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%% @doc
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%% Make the server stop listening if it is, or continue to do nothing if it isn't.
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ignore() ->
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fd_http:ignore().
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-spec start(normal, term()) -> {ok, pid()}.
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%% @private
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%% Called by OTP to kick things off. This is for the use of the "application" part of
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%% OTP, not to be called by user code.
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%% See: http://erlang.org/doc/apps/kernel/application.html
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start(normal, _Args) ->
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Result = fd_sup:start_link(),
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ok = listen(8000),
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Result.
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-spec stop(term()) -> ok.
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%% @private
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%% Similar to start/2 above, this is to be called by the "application" part of OTP,
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%% not client code. Causes a (hopefully graceful) shutdown of the application.
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stop(_State) ->
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ok.
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