Try catch not works with Genserver call timeout option.

[Narcissus Emi]

This is a piece of code inside of a GenServer implementation, and this call is a async call(which it returns a no_reply at handle_call block), I would like it to return me back a :no_reply value after the timeout, but it indeed keep crashes my process.

  def call(exchange,routing_key,content) do

    try do 

      :gen_server.call(__MODULE__,{:call,{exchange,routing_key,content}},1000)

    rescue

      e ->

        IO.puts "get #{inspect e}"

        :no_reply

    end

  end

here is a snapshot I'm working with AMQP queue, I would expect after the timeout it should yield me back :noreply, and here is the crash info.

** (exit) exited in: :gen_server.call(MessageDispatcher, {:call, {"Event", "NewMessage", "test"}}, 1000)

    ** (EXIT) time out

             (stdlib) gen_server.erl:190: :gen_server.call/3

    (generic_gateway) lib/wechat_message_callback/msg/msg_callback.ex:24: MessageDispatcher.call/3

iex(4)>

[José Valim]

Check the section on exits here: http://elixir-lang.org/getting-started/try-catch-and-rescue.html

José Valim

www.plataformatec.com.br

Skype: jv.ptec

Founder and Director of R&D

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[Narcissus Emi]

Arrrrrr,thx very much XD

在 2015年6月25日星期四 UTC+8上午3:20:59，Narcissus Emi写道：