Superviseur Global
Création de la matrice d'état injection du nouveau RTO
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4 changed files with 116 additions and 12 deletions
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@ -199,7 +199,7 @@ class CoAP(object):
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"""
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with transaction:
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if message.type == defines.Types['CON']:
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future_time = random.uniform(defines.ACK_TIMEOUT, (defines.ACK_TIMEOUT * defines.ACK_RANDOM_FACTOR))
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future_time = self.superviseur.RTO # random.uniform(defines.ACK_TIMEOUT, (defines.ACK_TIMEOUT * defines.ACK_RANDOM_FACTOR))
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transaction.retransmit_stop = threading.Event()
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self.to_be_stopped.append(transaction.retransmit_stop)
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transaction.retransmit_thread = threading.Thread(target=self._retransmit,
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@ -1,3 +1,4 @@
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from coapthon.client import superviseur
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import random
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from multiprocessing import Queue
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from queue import Empty
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@ -28,7 +29,14 @@ class HelperClient(object):
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self.protocol = CoAP(self.server, random.randint(1, 65535), self._wait_response, sock=sock,
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cb_ignore_read_exception=cb_ignore_read_exception, cb_ignore_write_exception=cb_ignore_write_exception)
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self.queue = Queue()
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self.superviseur = self.protocol.superviseur
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@property
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def superviseur(self):
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return self.protocol.superviseur
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@superviseur.setter
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def superviseur(self, value):
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self.protocol.superviseur = value
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def _wait_response(self, message):
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"""
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@ -1,14 +1,20 @@
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import random
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import time
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import numpy as np
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from coapthon import defines
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class SuperviseurLocalPlaceHolder():
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"""Class de base pour le superviseur
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"""
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def __init__(self, client_CoAP) -> None:
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client_CoAP.superviseur = self
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self.client = client_CoAP
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self._RTTs = []
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self._taux_retransmition = 0
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self._RTO = defines.ACK_TIMEOUT
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def envoie_message(self, message) -> None:
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self.envoie_token(message.token)
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@ -27,7 +33,7 @@ class SuperviseurLocalPlaceHolder():
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return self._RTTs
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@property
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def taux_retransmition(self):
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def taux_retransmission(self):
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return self._taux_retransmition
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@property
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@ -40,6 +46,10 @@ class SuperviseurLocalPlaceHolder():
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"""Moyenne du RTT."""
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return sum(self.RTTs)/len(self.RTTs)
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@property
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def RTO(self):
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return random.uniform(self._RTO, (self._RTO * defines.ACK_RANDOM_FACTOR))
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class SuperviseurLocal(SuperviseurLocalPlaceHolder):
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"""
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@ -61,6 +71,7 @@ class SuperviseurLocal(SuperviseurLocalPlaceHolder):
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self._n_envoie += 1
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self._n_tokken += not(token in self._dict_envoie)
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self._dict_envoie[token] = time.time()
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self._taux_retransmition = 1 - self._n_tokken/self._n_envoie
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def reception_token(self, token) -> None:
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"""Enregistre l'arrivée d'un token
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@ -71,24 +82,24 @@ class SuperviseurLocal(SuperviseurLocalPlaceHolder):
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if token in self._dict_envoie:
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rtt = time.time() - self._dict_envoie[token]
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self._RTTs.append(time.time() - self._dict_envoie[token])
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del self._dict_envoie[token]
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# del self._dict_envoie[token]
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self.callback_new_rtt(rtt)
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else:
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pass # raise ValueError("Tokken inconnue")
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@property
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def tau_retransmission(self):
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"""Rapport du nombre de message correspondant à des restransmission sur le nombre de message total."""
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return 1 - self._n_tokken/self._n_envoie
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def callback_new_rtt(self, rtt):
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pass
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def reset(self):
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self._dict_envoie = {}
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self._n_envoie = 0
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self._n_tokken = 0
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self._RTTs = []
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class SuperviseurLocalFiltre(SuperviseurLocal):
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def __init__(self, client_CoAP, rtt_init=0.001, alpha_l=0.01, alpha_s=0.1) -> None:
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def __init__(self, client_CoAP, rtt_init=0.01, alpha_l=0.01, alpha_s=0.1) -> None:
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super().__init__(client_CoAP)
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self._dict_envoie = {}
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self.alpha_l = alpha_l
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self.alpha_s = alpha_s
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self._RTT_L = rtt_init
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@ -106,3 +117,42 @@ class SuperviseurLocalFiltre(SuperviseurLocal):
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@property
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def RTT_S(self):
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return self._RTT_S
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class SuperviseurGlobal():
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def __init__(self, clients, superviseur_type, *superviseur_args) -> None:
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"""Genère un superviseur global pour la liste de client donnée
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Args:
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clients (List(HelperClient)): Liste des clients à supervisé
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superviseur_type (Type): Type de superviseur à utilisé
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"""
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self.clients = clients
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self.superviseurs = [superviseur_type(
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client, *superviseur_args) for client in clients]
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@property
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def state(self):
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taux_retransmissions = np.array(
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[superviseur.taux_retransmission for superviseur in self.superviseurs])
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min_rtts = np.array(
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[superviseur.min_RTT for superviseur in self.superviseurs])
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avg_rtts = np.array(
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[superviseur.avg_RTT for superviseur in self.superviseurs])
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ratio_rtts = np.array(min_rtts/avg_rtts)
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if isinstance(self.superviseurs[0], SuperviseurLocalFiltre):
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rtt_ls = np.array(
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[superviseur.RTT_L for superviseur in self.superviseurs])
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rtt_ss = np.array(
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[superviseur.RTT_S for superviseur in self.superviseurs])
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ratio_filtres = rtt_ss/rtt_ls
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representation_etat = np.array(
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[taux_retransmissions, ratio_rtts, ratio_filtres])
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else:
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representation_etat = np.array([taux_retransmissions, ratio_rtts])
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return representation_etat
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46
demo_global.py
Normal file
46
demo_global.py
Normal file
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@ -0,0 +1,46 @@
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import socket
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import threading
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import time
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import matplotlib.pyplot as plt
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from coapthon.client.helperclient import HelperClient
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from coapthon.client.superviseur import (SuperviseurLocal,
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SuperviseurLocalFiltre,
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SuperviseurGlobal)
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from coapthon.utils import parse_uri
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N_rep = 50
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N_client = 25
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host, port, path = parse_uri("coap://raspberrypi.local/basic")
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try:
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tmp = socket.gethostbyname(host)
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host = tmp
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except socket.gaierror:
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pass
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clients = [HelperClient(server=(host, port)) for _ in range(N_client)]
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super_global = SuperviseurGlobal(clients, SuperviseurLocalFiltre)
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def experience(client, N_rep):
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for n_rep in range(N_rep):
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response = client.get(path)
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client.stop()
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threads = [threading.Thread(target=experience, args=[
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client, N_rep], name='Thread-experience-{}'.format(n)) for n, client in enumerate(clients)]
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for thread in threads:
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thread.start()
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for thread in threads:
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thread.join()
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print(super_global.state)
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#[client.stop() for client in clients]
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