core/io.py

   1 # synarere -- a highly modular and stable IRC bot.
   2 # Copyright (C) 2010 Michael Rodriguez.
   3 # Rights to this code are documented in docs/LICENSE.
   4
   5 '''Main loop.'''
   6
   7 # Import required Python modules.
   8 import asyncore, time
   9
  10 # Import required core modules.
  11 import timer, var
  12
  13 def io():
  14     '''Infinite loop to handle routines.'''
  15
  16     while True:
  17         # Check for timers.
  18         delay = timer.next_run()
  19
  20         if delay <= time.time():
  21             timer.run()
  22
  23         # We don't want to poll on no connections because it makes CPU usage skyrocket.
  24         # Instead, just sleep.
  25         if len(var.conns) == 0:
  26             time.sleep(1)
  27         else:
  28             asyncore.poll(1)