Ruby多线程与多进程示例

9月 19 2018 编程 1 分钟读完 (约 135 字)

多进程示例：

def test_proc(name,second)
  Process.setproctitle("PROC-#{Process.pid}" )
  sleep second
  puts "#{name} - #{Process.pid} |G/U:#{Process.euid}/#{Process.gid}|PPID:#{Process.ppid}"
  Process.exit
  puts "Never going here"
end

puts "Main process start - #{Process.pid}"

10.times do |t|

    Process.fork do
      test_proc("PROC-#{t}",5+t)
    end

end

#Process.exit
Process.waitall
puts "Main process exit - #{Process.pid}"

运行结果：

多线程示例：

multithread.rb


require "thread"

threads=[]
6.times do |t|
  threads <<Thread.new do
    puts "Thread-#{t} start: Process: #{Process.pid} "
    sleep 5
    puts "Thread-#{t} Done: Process: #{Process.pid} "
  end
end

threads.each{|t|t.join}

运行结果：

Python 3 多线程与多进程示例

9月 16 2018 编程 2 分钟读完 (约 240 字)

关于多线程与多进程的区别此处就不再赘述了。
Python3中已经具备了非常完善的多线程与多进程的相关库，可以非常容易的实现程序多进程与多线程的功能。

示例代码如下：

多线程示例

multithread.py


import os 
import time 
import threading 


def test_proc(name):
    print( "Run child process %s(%s)" % (name,os.getpid()) )
    time.sleep(10)


class MultiThread( threading.Thread ):

    def __init__(self,thread_name):
        threading.Thread.__init__(self)
        self.thread_name = thread_name

    def run(self):
        test_proc("test")


threads = []
for i in range(1,10):
    thread = MultiThread( "Thread-%s" % i )
    thread.start()
    threads.append( thread )

for t in threads:
    t.join()

运行结果：

多进程示例

multiprocess.py


import os 
import time 
import multiprocessing 


def test_proc(name):
    print( "Run child process %s(%s)" % (name,os.getpid()) )
    time.sleep(10)

if __name__=="__main__":
    print("Process start %s" % os.getpid())

    processes = [] 

    for i in range( 0, 10): 
        p=multiprocessing.Process( target=test_proc, args=("Process-%s" % i,) )
        p.start()
        processes.append(p)

    
    for p in processes:
        p.join()

    print( "Main process end.")

运行结果：

#多进程

Ruby多线程与多进程示例

Python 3 多线程与多进程示例

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