Ruby中用线程实现经典的生产者消费者问题代码实例

示例代码：

require "thread" 

puts "ProAndCon" 

   

queue = Queue.new    #用队列Queue实现线程同步  

   

producer = Thread.new do 

    10.times do |i|  

        sleep rand(i) # 让线程睡眠一段时间  

        queue << i  

        puts "#{i} produced" 

    end 

end 

   

consumer = Thread.new do 

    10.times do |i|  

        value = queue.pop  

        sleep rand(i/2)  

        puts "consumed #{value}" 

    end 

end 

   

consumer.join  #等待consumer线程的输出完成再关闭此进程

运行结果：

ProAndCon

produced

produced

consumed 0

produced

produced

consumed 1

consumed 2

consumed 3

produced

consumed 4

produced

consumed 5

美化的代码图：