/usr/share/pyshared/jsb/lib/periodical.py is in jsonbot 0.84.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
#
""" provide a periodic structure. """
__author__ = "Wijnand 'tehmaze' Modderman - http://tehmaze.com"
__license__ = "BSD License"
## jsb imports
from jsb.utils.exception import handle_exception
from jsb.utils.trace import calledfrom, whichmodule
from jsb.utils.locking import lockdec
from jsb.utils.timeutils import strtotime
from jsb.lib.callbacks import callbacks
import jsb.lib.threads as thr
## basic imorts
import datetime
import sys
import time
import thread
import types
import logging
## locks
plock = thread.allocate_lock()
locked = lockdec(plock)
## defines
pidcount = 0
## JobError class
class JobError(Exception):
""" job error exception. """
pass
## Job class
class Job(object):
""" job to be scheduled. """
group = ''
pid = -1
def __init__(self):
global pidcount
pidcount += 1
self.pid = pidcount
def id(self):
""" return job id. """
return self.pid
def member(self, group):
""" check for group membership. """
return self.group == group
def do(self):
""" try the callback. """
try: self.func(*self.args, **self.kw)
except Exception, ex: handle_exception()
class JobAt(Job):
""" job to run at a specific time/interval/repeat. """
def __init__(self, start, interval, repeat, func, *args, **kw):
Job.__init__(self)
self.func = func
self.args = args
self.kw = kw
self.repeat = repeat
self.description = ""
self.counts = 0
if type(start) in [types.IntType, types.FloatType]: self.next = float(start)
elif type(start) in [types.StringType, types.UnicodeType]:
d = strtotime(start)
if d and d > time.time(): self.next = d
else: raise JobError("invalid date/time")
if type(interval) in [types.IntType]:
d = datetime.timedelta(days=interval)
self.delta = d.seconds
else: self.delta = interval
def __repr__(self):
""" return a string representation of the JobAt object. """
return '<JobAt instance next=%s, interval=%s, repeat=%d, function=%s>' % (str(self.next), str(self.delta), self.repeat, str(self.func))
def check(self):
""" run check to see if job needs to be scheduled. """
if self.next <= time.time():
logging.info('running %s - %s' % (str(self.func), self.description))
self.func(*self.args, **self.kw)
self.next += self.delta
self.counts += 1
if self.repeat > 0 and self.counts >= self.repeat: return False
return True
class JobInterval(Job):
""" job to be scheduled at certain interval. """
def __init__(self, interval, repeat, func, *args, **kw):
Job.__init__(self)
self.func = func
self.args = args
self.kw = kw
self.repeat = int(repeat)
self.counts = 0
self.interval = float(interval)
self.description = ""
self.next = time.time() + self.interval
self.group = None
logging.warn('scheduled next run of %s in %d seconds' % (str(self.func), self.interval))
def __repr__(self):
return '<JobInterval instance next=%s, interval=%s, repeat=%d, group=%s, function=%s>' % (str(self.next), str(self.interval), self.repeat, self.group, str(self.func))
def check(self):
""" run check to see if job needs to be scheduled. """
if self.next <= time.time():
logging.info('running %s - %s' % (str(self.func), self.description))
self.next = time.time() + self.interval
thr.start_new_thread(self.do, ())
self.counts += 1
if self.repeat > 0 and self.counts >= self.repeat: return False
return True
class Periodical(object):
""" periodical scheduler. """
def __init__(self):
self.jobs = []
self.running = []
self.run = True
def size(self):
return len(self.jobs)
def addjob(self, sleeptime, repeat, function, description="" , *args, **kw):
""" add a periodical job. """
job = JobInterval(sleeptime, repeat, function, *args, **kw)
job.group = calledfrom(sys._getframe())
job.description = str(description) or whichmodule()
self.jobs.append(job)
return job.pid
def changeinterval(self, pid, interval):
""" change interval of of peridical job. """
for i in periodical.jobs:
if i.pid == pid:
i.interval = interval
i.next = time.time() + interval
def looponce(self, bot, event):
""" loop over the jobs. """
for job in self.jobs:
if job.next <= time.time():
self.runjob(job)
def runjob(self, job):
""" run a periodical job. """
if not job.check(): self.killjob(job.id())
else: self.running.append(job)
def kill(self):
""" kill all jobs invoked by another module. """
group = calledfrom(sys._getframe())
self.killgroup(group)
def killgroup(self, group):
""" kill all jobs with the same group. """
def shoot():
""" knock down all jobs belonging to group. """
deljobs = [job for job in self.jobs if job.member(group)]
for job in deljobs:
self.jobs.remove(job)
try: self.running.remove(job)
except ValueError: pass
logging.warn('killed %d jobs for %s' % (len(deljobs), group))
del deljobs
return shoot()
def killjob(self, jobId):
""" kill one job by its id. """
def shoot():
deljobs = [x for x in self.jobs if x.id() == jobId]
numjobs = len(deljobs)
for job in deljobs:
self.jobs.remove(job)
try: self.running.remove(job)
except ValueError: pass
del deljobs
return numjobs
return shoot()
def interval(sleeptime, repeat=0):
""" interval decorator. """
group = calledfrom(sys._getframe())
def decorator(function):
decorator.func_dict = function.func_dict
def wrapper(*args, **kw):
job = JobInterval(sleeptime, repeat, function, *args, **kw)
job.group = group
job.description = whichmodule()
periodical.jobs.append(job)
logging.warn('new interval job %d with sleeptime %d' % (job.id(), sleeptime))
return wrapper
return decorator
def at(start, interval=1, repeat=1):
""" at decorator. """
group = calledfrom(sys._getframe())
def decorator(function):
decorator.func_dict = function.func_dict
def wrapper(*args, **kw):
job = JobAt(start, interval, repeat, function, *args, **kw)
job.group = group
job.description = whichmodule()
periodical.jobs.append(job)
wrapper.func_dict = function.func_dict
return wrapper
return decorator
def persecond(function):
""" per second decorator. """
minutely.func_dict = function.func_dict
group = calledfrom(sys._getframe())
def wrapper(*args, **kw):
job = JobInterval(1, 0, function, *args, **kw)
job.group = group
job.description = whichmodule()
periodical.jobs.append(job)
logging.debug('new interval job %d running per second' % job.id())
return wrapper
def minutely(function):
""" minute decorator. """
minutely.func_dict = function.func_dict
group = calledfrom(sys._getframe())
def wrapper(*args, **kw):
job = JobInterval(60, 0, function, *args, **kw)
job.group = group
job.description = whichmodule()
periodical.jobs.append(job)
logging.warn('new interval job %d running minutely' % job.id())
return wrapper
def hourly(function):
""" hour decorator. """
logging.warn('@hourly(%s)' % str(function))
hourly.func_dict = function.func_dict
group = calledfrom(sys._getframe())
def wrapper(*args, **kw):
job = JobInterval(3600, 0, function, *args, **kw)
job.group = group
job.description = whichmodule()
logging.warn('new interval job %d running hourly' % job.id())
periodical.jobs.append(job)
return wrapper
def daily(function):
""" day decorator. """
logging.warn('@daily(%s)' % str(function))
daily.func_dict = function.func_dict
group = calledfrom(sys._getframe())
def wrapper(*args, **kw):
job = JobInterval(86400, 0, function, *args, **kw)
job.group = group
job.description = whichmodule()
periodical.jobs.append(job)
logging.warb('new interval job %d running daily' % job.id())
return wrapper
periodical = Periodical()
callbacks.add("TICK", periodical.looponce)
def size():
return periodical.size()
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