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splitter_acs.py
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splitter_acs.py
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"""
@package core
splitter_ace module
"""
# -*- coding: iso-8859-15 -*-
# This code is distributed under the GNU General Public License (see
# THE_GNU_GENERAL_PUBLIC_LICENSE.txt for extending this information).
# Copyright (C) 2014, the P2PSP team.
# http://www.p2psp.org
# ACS: Adaptive Chunk-rate Set of rules
# {{{ Imports
from __future__ import print_function
import threading
import sys
import socket
import struct
import time
<<<<<<< HEAD
from . import common
#from core.color import Color
=======
from core.common import Common
from core.color import Color
>>>>>>> master
from core._print_ import _print_
#from splitter_ims import Splitter_IMS
from core.splitter_dbs import Splitter_DBS
#from splitter_fns import Splitter_FNS
# }}}
def _p_(*args, **kwargs):
"""Colorize the output."""
if __debug__:
sys.stdout.write(Common.ACS_COLOR)
_print_("ACS:", *args)
sys.stdout.write(Color.none)
class Splitter_ACS(Splitter_DBS):
# {{{
def __init__(self, splitter):
# {{{
#Splitter_FNS.__init__(self)
#sys.stdout.write(Color.yellow)
#print("Using ACS")
#sys.stdout.write(Color.none)
self.period = {} # Indexed by a peer (IP address, port)
self.period_counter = {} # Indexed by a peer (IP address, port)
self.number_of_sent_chunks_per_peer = {} # Indexed by a peer (IP address, port)
self.magic_flags |= Common.ACS
_p_("Initialized")
# }}}
def insert_peer(self, peer):
# {{{
Splitter_DBS.insert_peer(self, peer)
self.period[peer] = self.period_counter[peer] = 1
self.number_of_sent_chunks_per_peer[peer] = 0
#if __debug__:
_p_("inserted", peer)
# }}}
def increment_unsupportivity_of_peer(self, peer):
# {{{
Splitter_DBS.increment_unsupportivity_of_peer(self, peer)
try:
if peer != self.peer_list[0]:
self.period[peer] += 1
self.period_counter[peer] = self.period[peer]
except KeyError:
pass
# }}}
def remove_peer(self, peer):
# {{{
Splitter_DBS.remove_peer(self, peer)
try:
del self.period[peer]
except KeyError:
pass
try:
del self.period_counter[peer]
except KeyError:
pass
try:
del self.number_of_sent_chunks_per_peer[peer]
except KeyError:
pass
# }}}
def reset_counters(self):
# {{{
Splitter_DBS.reset_counters(self)
for i in self.period:
#self.period[i] = ( self.period[i] + 1 ) / 2
self.period[i] -= 1
if self.period[i] < 1:
self.period[i] = 1
#self.period_counter[i] = self.period[i]
# }}}
def send_chunk(self, chunk, peer):
# {{{
Splitter_DBS.send_chunk(self, chunk, peer)
try:
self.number_of_sent_chunks_per_peer[peer] += 1
except KeyError:
pass
# }}}
def compute_next_peer_number(self, peer):
# {{{
try:
while self.period_counter[peer] != 0:
self.period_counter[peer] -= 1
self.peer_number = (self.peer_number + 1) % len(self.peer_list)
peer = self.peer_list[self.peer_number]
self.period_counter[peer] = self.period[peer] # ojo, inservible?
except KeyError:
pass
# }}}
# }}}