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647e95aed1
This should have been done a *long* time ago, back when I initially
added Websocket support. This is the first part of two in improving
loop handler support with regards to socket closure.
Reason may include: {normal, shutdown} for the most normal shutdown,
{normal, timeout} for a loop handler timeout shutdown, or {error, _}
if an error occured.
22 lines
573 B
Erlang
22 lines
573 B
Erlang
%% Feel free to use, reuse and abuse the code in this file.
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-module(http_handler_long_polling).
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-behaviour(cowboy_http_handler).
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-export([init/3, handle/2, info/3, terminate/3]).
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init({_Transport, http}, Req, _Opts) ->
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erlang:send_after(500, self(), timeout),
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{loop, Req, 5, 5000, hibernate}.
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handle(_Req, _State) ->
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exit(badarg).
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info(timeout, Req, 0) ->
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{ok, Req2} = cowboy_req:reply(102, Req),
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{ok, Req2, 0};
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info(timeout, Req, State) ->
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erlang:send_after(500, self(), timeout),
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{loop, Req, State - 1, hibernate}.
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terminate({normal, shutdown}, _, _) ->
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ok.
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