我正在尝试编写一个简单的 zmq 系统来替换 http 客户端/服务器。当服务器关闭/不可用时,我的客户端超时,但不会重试或停止。我错过了什么?
zmq_client.rb(修改版 Han Holl 的懒惰海盗客户端 from zeromq guide)
require 'rubygems'
require 'zmq'
context = ZMQ::Context.new
socket = context.socket(ZMQ::REQ)
socket.connect('tcp://localhost:5559')
retries = 2
timeout = 10
retries.times do |tries|
message = "Hello #{tries}"
raise("Send: #{message} failed") unless socket.send(message)
puts "Sending string [#{message}]"
if ZMQ.select( [socket], nil, nil, timeout)
message = socket.recv
puts "Received reply [#{message}]"
break
else
puts "timeout"
end
end
socket.close
zmq_broker.rb(在 zeromq 指南中找到的 Oleg Sidorov 代码的修改版本)
require 'rubygems'
require 'ffi-rzmq'
context = ZMQ::Context.new
frontend = context.socket(ZMQ::ROUTER)
frontend.bind('tcp://*:5559')
poller = ZMQ::Poller.new
poller.register(frontend, ZMQ::POLLIN)
loop do
poller.poll(:blocking)
poller.readables.each do |socket|
if socket === frontend
loop do
socket.recv_string(message = '')
more = socket.more_parts?
puts "#{message}#{more}"
socket.send_string(message, more ? ZMQ::SNDMORE : 0)
break unless more
end
end
end
end