<s> """<STR_LIT>""" <EOL> import logging <EOL> import threading <EOL> import time <EOL> try : <EOL> import Queue as queue <EOL> except ImportError : <EOL> import queue <EOL> class Task ( threading . Thread ) : <EOL> def __init__ ( self , target = None ) : <EOL> threading . Thread . __init__ ( self , target = target ) <EOL> self . log = logging . getLogger ( "<STR_LIT>" ) <EOL> self . daemon = True <EOL> self . runner = None <EOL> self . start_time = None <EOL> self . stop_time = None <EOL> def can_start ( self ) : <EOL> return True <EOL> def execute ( self ) : <EOL> assert False , "<STR_LIT>" <EOL> def run ( self ) : <EOL> try : <EOL> self . start_time = time . time ( ) <EOL> self . execute ( ) <EOL> finally : <EOL> self . stop_time = time . time ( ) <EOL> self . runner . task_finished ( self ) <EOL> class Runner ( object ) : <EOL> def __init__ ( self , max_jobs = None ) : <EOL> self . log = logging . getLogger ( "<STR_LIT>" ) <EOL> self . not_started = set ( ) <EOL> self . started = set ( ) <EOL> self . stopped = set ( ) <EOL> self . finished_queue = queue . Queue ( ) <EOL> self . max_jobs = max_jobs <EOL> def add_task ( self , task ) : <EOL> task . runner = self <EOL> self . not_started . add ( task ) <EOL> def task_finished ( self , task ) : <EOL> self . finished_queue . put ( task ) <EOL> def check ( self ) : <EOL> for task in list ( self . not_started ) : <EOL> if self . max_jobs and ( len ( self . started ) >= self . max_jobs ) : <EOL> continue <EOL> if not task . can_start ( ) : <EOL> continue <EOL> self . started . add ( task ) <EOL> self . not_started . remove ( task ) <EOL> task . start ( ) <EOL> def wait_task_to_finish ( self ) : <EOL> try : <EOL> task = self . finished_queue . get ( timeout = <NUM_LIT> ) <EOL> except queue . Empty : <EOL> self . log . warning ( <EOL> "<STR_LIT>" , <EOL> "<STR_LIT:U+002CU+0020>" . join ( str ( task ) for task in self . started ) , len ( self . not_started ) ) <EOL> return <EOL> self . log . debug ( "<STR_LIT>" , task , <EOL> ( task . stop_time - task . start_time ) ) <EOL> self . started . remove ( task ) <EOL> self . stopped . add ( task ) <EOL> self . finished_queue . task_done ( ) <EOL> def run_all ( self ) : <EOL> while self . not_started or self . started : <EOL> self . check ( ) <EOL> self . wait_task_to_finish ( ) </s>
