Question

我需要实现一个只写数据但不接收它的服务器。我发现的所有eventmachine服务器示例都始终让服务器首先接收数据，然后使用数据进行响应。我需要它才能在客户端连接后开始向客户端写入数据。

我试过在post_init中放一个循环，但这似乎不起作用......客户端连接，服务器写入，但客户端似乎永远不会收到任何东西。建议？

测试服务器：

require 'rubygems'
require 'eventmachine'
require 'time'

module TestServer
  def post_init
    puts "-- client connected, sending data --"
    while true do
      send_data "Hello from TestServer\n"
      puts "sent #{Time.now.iso8601}"
    end
  end
end

EventMachine::run {
  EventMachine::start_server "127.0.0.1", 4001, TestServer
  puts 'running test server on 4001'
}

测试客户：

require 'rubygems'
require 'eventmachine'

module Forwarder
  def post_init
    puts "-- connected to server --"
  end

  def receive_data data
    # none of the following is ever output
    puts "in receive_data"
    puts data
  end
end

EventMachine::run {
  EventMachine::connect '127.0.0.1', 4001, Forwarder
}

...谢谢

Answer 1

感谢#eventmachine上的tmm1，得到了这个想法。客户是一样的。服务器代码是：

require 'rubygems'
require 'eventmachine'
require 'time'

module TestServer
  def post_init
    puts "-- client connected --"
    @timer = EM::PeriodicTimer.new(0.1) {
      send_data "Hello from TestServer at #{Time.now.iso8601}\n"
    }
  end

end

EventMachine::run {
  EventMachine::start_server "127.0.0.1", 4001, TestServer
  puts 'running test server on 4001'
}

如何让eventmachine服务器只写数据？

1 个答案: