Question

我试图用ruby-smpp发送短信。根据项目示例和对em-redis and eventmachine的一些研究，我有以下gateway.rb配置：

loop do
  EventMachine::run do             
    @@tx = EventMachine::connect(
      config[:host], 
      config[:port], 
      Smpp::Transceiver, 
      config, 
      self    # delegate that will receive callbacks on MOs and DRs and other events
    )

    MessageSender.next     # gets the messages from redis list and sends at each click of the EventMachine

  end
  puts "Disconnected. Reconnecting in 5 seconds.."
  sleep 5
end

MessageSender就是这个模块：

module MessageSender

  def self.redis
    @redis ||= EM::Hiredis.connect
  end

  def self.next
    redis.blpop("company-out", 0) do |item| 
      if item[1]
        message_hashed = JSON.parse(item[1])
        CompanyGateway.send_mt(message_hashed["from"], 
                               message_hashed["to"], 
                               message_hashed["message"])
      end      
      EM.next_tick(&method(:next))  
    end    
  end  

end

什么有效：我启动网关并连接到SMSC模拟器。我将消息添加到redis列表并且它被发送正常。什么中断：redis列表中已有值，并且运行gateway.rb会出现以下错误：

Exception in SMS Gateway: Transceiver is unbound. Cannot send MT messages. at /vagrant/lib/ruby-smpp/lib/smpp/transceiver.rb:28:in `send_mt'
/vagrant/lib/ruby-smpp/gateways/ucellgate.rb:87:in `send_mt'
/vagrant/lib/ruby-smpp/gateways/ucellgate.rb:66:in `block in next'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/em-hiredis-0.1.0/lib/em-hiredis/client.rb:149:in `block in method_missing'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/eventmachine-0.12.10/lib/em/deferrable.rb:134:in `call'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/eventmachine-0.12.10/lib/em/deferrable.rb:134:in `set_deferred_status'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/eventmachine-0.12.10/lib/em/deferrable.rb:173:in `succeed'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/em-hiredis-0.1.0/lib/em-hiredis/client.rb:75:in `block in connect'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/em-hiredis-0.1.0/lib/em-hiredis/event_emitter.rb:8:in `call'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/em-hiredis-0.1.0/lib/em-hiredis/event_emitter.rb:8:in `block in emit'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/em-hiredis-0.1.0/lib/em-hiredis/event_emitter.rb:8:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/em-hiredis-0.1.0/lib/em-hiredis/event_emitter.rb:8:in `emit'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/em-hiredis-0.1.0/lib/em-hiredis/connection.rb:21:in `receive_data'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run_machine'
/home/vagrant/.rvm/gems/ruby-1.9.2-p290/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run'
/vagrant/lib/ruby-smpp/gateways/ucellgate.rb:103:in `block in start'
/vagrant/lib/ruby-smpp/gateways/ucellgate.rb:102:in `loop'
/vagrant/lib/ruby-smpp/gateways/ucellgate.rb:102:in `start'
/vagrant/lib/ruby-smpp/gateways/ucellgate.rb:186:in `<main>'

我希望能够运行网关而不管redis列表是否为空，并且将来发送存储的消息和到达列表的消息。有什么建议吗？

Answer 1

这看起来不像redis问题。例外来自CompanyGateway.send_mt。我的猜测是，当你在redis队列上启动项目时，你会尝试在连接完成之前发送消息。

您可以尝试在EM.add_timer（5）{MessageSender.next}中包装初始MessageSender.next调用，以将初始调用延迟几秒钟以允许连接完成。

使用Eventmachine和EM-Redis在ruby-smpp中发送消息

1 个答案: