Simple jruby線程

Question

我正在尋找如何在jruby中正確啓動兩個簡單的線程。

在以下兩個線程中，第一個線程中的消息不會被打印。我可以換兩個線程和行爲（第一個線程不打印）仍然存在：所以它不是關於線程的內容（這是我在任何情況下，掐滅）

input_before_mysql_phases_t = Thread.new do 
    sprint "input_before_mysql_phases completed" 
end 
mysql_phases_t = Thread.new do 
    sprint "mysql_phases completed" 
end 
sprint "awaiting completion of data fetch phases .." 
sleep 5 
sprint "data fetch phases completed" 

這裏是輸出：注意來自第一個線程的消息不會被打印。

=> #<Thread:0x72d006a7 run> 
[2013-04-18T12:56:29+00:00] SCHEDULER: mysql_phases completed 
irb(main):540:0>  sprint "awaiting completion of data fetch phases .." 
[2013-04-18T12:56:29+00:00] SCHEDULER: awaiting completion of data fetch phases .. 
=> nil 
irb(main):541:0>  sleep 5 
=> 5 
irb(main):542:0>  sprint "data fetch phases completed" 
[2013-04-18T12:56:34+00:00] SCHEDULER: data fetch phases completed 

Answer 1

什麼是sprint函數？

這工作：

input_before_mysql_phases_t = Thread.new do 
    sleep Random.rand(5) # Random sleep 
    sprintf "input_before_mysql_phases completed" 
end 
mysql_phases_t = Thread.new do 
    sleep Random.rand(5) #Random sleep 
    sprintf "mysql_phases completed" 
end 


puts "awaiting completion of data fetch phases .." 
# Wait for threads to finish 
input_before_mysql_phases_t.join 
mysql_phases_t.join 
puts "data fetch phases completed"