ws_timeout_cancel_handler.erl 924 B

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  1. %% Feel free to use, reuse and abuse the code in this file.
  2. -module(ws_timeout_cancel_handler).
  3. -behaviour(cowboy_http_handler).
  4. -behaviour(cowboy_websocket_handler).
  5. -export([init/3, handle/2, terminate/2]).
  6. -export([websocket_init/3, websocket_handle/3,
  7. websocket_info/3, websocket_terminate/3]).
  8. init(_Any, _Req, _Opts) ->
  9. {upgrade, protocol, cowboy_websocket}.
  10. handle(_Req, _State) ->
  11. exit(badarg).
  12. terminate(_Req, _State) ->
  13. exit(badarg).
  14. websocket_init(_TransportName, Req, _Opts) ->
  15. erlang:start_timer(500, self(), should_not_cancel_timer),
  16. {ok, Req, undefined, 1000}.
  17. websocket_handle({text, Data}, Req, State) ->
  18. {reply, {text, Data}, Req, State};
  19. websocket_handle({binary, Data}, Req, State) ->
  20. {reply, {binary, Data}, Req, State}.
  21. websocket_info(_Info, Req, State) ->
  22. erlang:start_timer(500, self(), should_not_cancel_timer),
  23. {ok, Req, State}.
  24. websocket_terminate(_Reason, _Req, _State) ->
  25. ok.