rintrix/chatlib/timer.py

54 lines
1.6 KiB
Python

from traceback import format_exc
from asyncio import sleep,create_task
from datetime import datetime
from asyncio import iscoroutinefunction,get_event_loop
from . import utils
class Timer():
def __init__(self,function,interval,block=None,start=None,*args,**kwargs):
self.function=function
self.interval=interval
self.args=args
self.kwargs=kwargs
self.block=block
if block is None: self.block=(interval == 0)
self.start=start
self.scheduled=None
@property
def isasync(self):
return iscoroutinefunction(self.function)
"""
This mess of functions...
Operate and enqueue are just wrappers that do some useful things that I couldn't fit elsewhere. Iterate is the core that runs them in the right order according to blocking.
"""
async def enqueue(self,interval=None):
self.scheduled=create_task(self.iterate(interval))
async def operate(self,*args,**kwargs):
if not args: args=self.args
if not kwargs: kwargs=self.kwargs
try:
if not self.isasync: return self.function(*args,**kwargs)
return await self.function(*args,**kwargs)
except: utils.trace('explosions in',self); format_exc()
async def iterate(self,interval=None):
if interval is None: interval=self.interval
await sleep(interval)
await (self.operate,self.enqueue)[not self.block]()
await (self.operate,self.enqueue)[self.block]()
async def run(self):
slop=0
if self.start is not None:
ima=datetime.utcnow()
slop=(self.start-ima).total_seconds() # It'll be very slightly wrong but whatever
await self.enqueue(slop)
def __str__(self):
return self.function.__name__
def __del__(self):
self.scheduled.cancel()