49 lines
1.5 KiB
Python
Executable File
49 lines
1.5 KiB
Python
Executable File
# The contents of this file are subject to the BitTorrent Open Source License
|
|
# Version 1.1 (the License). You may not copy or use this file, in either
|
|
# source code or executable form, except in compliance with the License. You
|
|
# may obtain a copy of the License at http://www.bittorrent.com/license/.
|
|
#
|
|
# Software distributed under the License is distributed on an AS IS basis,
|
|
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
# for the specific language governing rights and limitations under the
|
|
# License.
|
|
|
|
# Written by Bram Cohen
|
|
|
|
from BitTorrent.platform import bttime
|
|
|
|
|
|
class Measure(object):
|
|
|
|
def __init__(self, max_rate_period, fudge=5):
|
|
self.max_rate_period = max_rate_period
|
|
self.ratesince = bttime() - fudge
|
|
self.last = self.ratesince
|
|
self.rate = 0.0
|
|
self.total = 0
|
|
|
|
def update_rate(self, amount):
|
|
self.total += amount
|
|
t = bttime()
|
|
self.rate = (self.rate * (self.last - self.ratesince) +
|
|
amount) / (t - self.ratesince)
|
|
self.last = t
|
|
if self.ratesince < t - self.max_rate_period:
|
|
self.ratesince = t - self.max_rate_period
|
|
|
|
def get_rate(self):
|
|
self.update_rate(0)
|
|
return self.rate
|
|
|
|
def get_rate_noupdate(self):
|
|
return self.rate
|
|
|
|
def time_until_rate(self, newrate):
|
|
if self.rate <= newrate:
|
|
return 0
|
|
t = bttime() - self.ratesince
|
|
return ((self.rate * t) / newrate) - t
|
|
|
|
def get_total(self):
|
|
return self.total
|