mirror of
https://github.com/ninenines/cowboy.git
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48 lines
2 KiB
Erlang
48 lines
2 KiB
Erlang
%% Copyright (c) 2016-2017, Loïc Hoguin <essen@ninenines.eu>
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%%
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%% Permission to use, copy, modify, and/or distribute this software for any
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%% purpose with or without fee is hereby granted, provided that the above
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%% copyright notice and this permission notice appear in all copies.
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%%
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%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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-module(cowboy_clear).
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-behavior(ranch_protocol).
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-export([start_link/4]).
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-export([proc_lib_hack/5]).
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-spec start_link(ranch:ref(), inet:socket(), module(), cowboy:opts()) -> {ok, pid()}.
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start_link(Ref, Socket, Transport, Opts) ->
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Pid = proc_lib:spawn_link(?MODULE, proc_lib_hack, [self(), Ref, Socket, Transport, Opts]),
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{ok, Pid}.
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-spec proc_lib_hack(pid(), ranch:ref(), inet:socket(), module(), cowboy:opts()) -> ok.
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proc_lib_hack(Parent, Ref, Socket, Transport, Opts) ->
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try
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init(Parent, Ref, Socket, Transport, Opts)
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catch
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_:normal -> exit(normal);
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_:shutdown -> exit(shutdown);
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_:Reason = {shutdown, _} -> exit(Reason);
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_:Reason -> exit({Reason, erlang:get_stacktrace()})
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end.
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-spec init(pid(), ranch:ref(), inet:socket(), module(), cowboy:opts()) -> ok.
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init(Parent, Ref, Socket, Transport, Opts) ->
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ok = ranch:accept_ack(Ref),
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init(Parent, Ref, Socket, Transport, Opts, cowboy_http).
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init(Parent, Ref, Socket, Transport, Opts, Protocol) ->
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{Handler, Type} = maps:get(stream_handler, Opts, {cowboy_stream_h, supervisor}),
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_ = case Type of
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worker -> ok;
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supervisor -> process_flag(trap_exit, true)
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end,
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Protocol:init(Parent, Ref, Socket, Transport, Opts, Handler).
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