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Python limits the execution time of function and implements timeout by yourself

Python limits the execution time of function and implements timeout by yourself

Updated: January 12, 2019 16:33:59 Author: Wu Kun
Today, the editor will share with you an example of python limiting the execution time of function and implementing timeout by yourself. It has good reference value and hope it will be helpful to everyone. Let's take a look with the editor

As shown below:

# coding=utf-8
import signal
import time
 
 
def set_timeout(num, callback):
  def wrap(func):
    def handle(signum, frame): # The callback function after receiving the signal SIGALRM, the first parameter is the number of the signal, and the second parameter is the interrupted stack frame.      raise RuntimeError
 
    def to_do(*args, **kwargs):
      try:
        (, handle) # Set signal and callback function        (num) # Set the alarm clock for num seconds        print 'start alarm signal.'
        r = func(*args, **kwargs)
        print 'close alarm signal.'
        (0) # Turn off the alarm clock        return r
      except RuntimeError as e:
        callback()
 
    return to_do
 
  return wrap
 
 
if __name__ == '__main__':
  def after_timeout(): # Processing function after timeout    print "do something after timeout."
 
 
  @set_timeout(2, after_timeout) # Limited time 2 seconds  def connect(): # Function to execute    (1) # Function execution time, write a value greater than 2, and test the timeout    return 'connect success.'
 
 
  print connect()

The above example of python limiting the execution time of function and implementing timeout by yourself is all the content I share with you. I hope you can give you a reference and I hope you can support me more.

  • python
  • function
  • timeout

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