gistfile1.rb

require 'rubygems'
require 'sinatra'
require 'lib/sms'
require 'thread'

SECONDS_PER_MESSAGE = 1.0

queue = Queue.new

consumer = Thread.new do
  loop do
    t0 = Time.now

    message = queue.pop
    outgoing = SMS.new
    outgoing.send message['from'], message['to'], "#{message['message']} at #{Time.now}"

    t1 = Time.now
    diff = SECONDS_PER_MESSAGE - (t1 - t0)
    sleep(diff) if diff > 0.0
  end  
end

post '/sms' do
  content_type :json
  
  puts "From:" + params['from']
  puts "To:" + params['to']
  puts "Message:" + params['message']

  queue << params

  puts "Queue Length:" + queue.length.to_s
end