def start_sending(delay, perdida):
print 'perdida: ', perdida, ' - delay: ', delay
times = []
print "Vas a mandar paquetes de tamano: ", SIZES
received = str()
with Socket(delay, perdida) as sock2:
sock2.connect(CONNECTION_DIR)
for size_to_send in SIZES:
# si no es un size valido salgo
if size_to_send == NULL_SIZE:
break
for i in range(REPEAT_SEND):
# espero a q el server me diga cuando empezar a mandar
sock2.recv(MAX_BUFFER)
# si el server nos contesto, significa que ya le podemos empezar a enviar.
to_send = "a" * size_to_send
# empiezo a mandar
print "Envio ", size_to_send, ' bytes ( iteracion ', i, ')'
sock2.send(to_send)
# Cerramos el stream de escritura pero podemos seguir recibiendo datos.
sock2.shutdown(SHUT_WR)
sock2.close()
def main(server_ip, size):
with Socket() as sock:
print '[client] Connecting...'
sock.connect((server_ip, 6677))
print '[client] Connection established.'
print '[client] Sending file size...'
sock.send(pack('I', size))
print '[client] Uploading %d bytes...' % size
t0 = time()
sock.send('a' * size)
sock.shutdown(SHUT_WR) # Cerramos el stream de escritura pero podemos seguir recibiendo datos.
t1 = time()
t = t1 - t0
print '[client] Upload time: %f seconds' % t
print '[client] Connection closed.'
def main(ack_delay, ack_loss_probability):
with Socket(ack_delay=ack_delay,
ack_loss_probability=ack_loss_probability) as sock:
sock.bind(('0.0.0.0', 6677))
sock.listen()
print '[PTC server] Waiting for a client...'
sock.accept()
print '[PTC server] Connection established.'
size = unpack('I', sock.recv(4))[0]
print '[PTC server] Receiving %d bytes...' % size
received = str()
while len(received) < size:
received += sock.recv(size - len(received))
print '[PTC server] Received %d bytes.' % len(received)
sock.close()
print '[PTC server] Received %d bytes. Connection closed.' % size
def run(self):
to_send = open(self.outgoing_filename).read()
expected_size = len(open(self.incoming_filename).read())
with Socket() as sock:
# La conexión del socket queda definida por cada subclase.
# El cliente se conecta activamente mientras que el servidor se
# ligará a una dirección determinada y escuchará allí.
self._connect_socket(sock)
i = 0
# Para recibir el archivo, iterar hasta que el tamaño deseado
# queda totalmente cubierto.
while len(self.received_bytes) < expected_size:
# Siendo PTC un protocolo full-duplex, al mismo tiempo también
# podemos mandar datos a nuestro interlocutor.
sock.send(to_send[i:i+self.CHUNK_SIZE])
chunk = sock.recv(self.CHUNK_SIZE)
self.received_bytes += chunk
i += self.CHUNK_SIZE
# Por último, enviar todos los bytes remanentes.
if i < len(to_send):
sock.send(to_send[i:])
self._write_file()
def start_server(delay, perdida):
tiempo = {}
print 'perdida: ', perdida, ' - delay: ', delay
print "Vas a recibir paquetes de tamano: ", SIZES
with Socket(delay, perdida) as sock1:
sock1.bind(CONNECTION_DIR)
sock1.listen()
sock1.accept()
for size_to_recv in SIZES:
# chequeo que es un tamano valido
if size_to_recv == NULL_SIZE:
break
for i in range(REPEAT_SEND):
sock1.send(SERVER_MSG_OK) # le aviso de que empiece a mandar
print '\nComienzo a recibir ', size_to_recv, ' bytes ( iteracion ', i, ')'
startTime = time.time()
str_recv = ""
while (size_to_recv > len(str_recv)):
str_recv += sock1.recv(MAX_BUFFER)
totalTime = time.time() - startTime
if not tiempo.has_key(size_to_recv): tiempo[size_to_recv] = []
tiempo[size_to_recv].append(totalTime)
print '\tRecibidos los %d bytes' % (size_to_recv)
print '\tTiempo = %.10f' % (totalTime)
sock1.close()
save_result(
FILE_FMT %
('server', str(delay), str(perdida), len(SIZES), MAX_BUFFER),
delay, perdida, tiempo)
timer = threading.Timer(0.01, change_drop)
timer.start()
#timer = threading.Timer(0.01, change_delay)
#timer.start()
timer = threading.Timer(0.01, change_drop)
timer.start()
protocol.ACK_delay = 0
#ACKs = [0.01, 0.02, 0.03, 0.04, 0.05]
ACKs = [0.075, 0.1]
tests = []
with Socket() as sock2:
sock2.connect((sys.argv[1], 6677))
for i in l:
#print "\nRunning file: " + str(len(i)/1024) + "kb"
for k in range(0, len(ACKs)):
h = Info()
h.runsCount = 3
h.delay = ACKs[k]
protocol.ACK_delay = h.delay
#print "Using delay: " + str(protocol.ACK_delay)
protocol.droppedPackets = 0
for j in range(0, h.runsCount):
sock2.send(tp_protocol.SEND)
data = sock2.recv(10)
if data == tp_protocol.OK:
#print "mando longitud de mensaje: " + str(len(i))
parser = argparse.ArgumentParser()
parser.add_argument('--host', help='Server hostname')
parser.add_argument('-a', '--alpha', type=int, help='Start Alpha')
parser.add_argument('-b', '--beta', type=int, help='Start Beta')
parser.add_argument('-p', '--port', type=int, help='Server port')
parser.add_argument('-s', '--size', type=int, help='Bytes to send')
parser.add_argument('--fpath')
args = parser.parse_args()
alphaStart = args.alpha
betaStart = args.beta
for alpha in range(alphaStart, 11, 1):
for beta in range(betaStart, 12, 1):
filepath = args.fpath
with Socket(beta=beta / 10.0,
alpha=alpha / 10.0,
k=4,
filepath=filepath) as sock:
print 'Connecting...'
print gethostbyname(args.host)
print args.port
sock.connect((gethostbyname(args.host), args.port), timeout=10)
print 'Connection established.'
print 'Sending file size...'
sock.send(pack('I',
args.size)) #da la representacion en bytes de size
print 'Uploading %d bytes...' % args.size
sock.send('a' * args.size) #crea un string con 50 a's
sock.shutdown(SHUT_WR)
time.sleep(1)
betaStart = 0
print 'Connection closed.'
import argparse
from ptc import Socket, SHUT_WR
from socket import gethostbyname
from struct import pack
parser = argparse.ArgumentParser()
parser.add_argument('--host', help='Server hostname')
parser.add_argument('-p', '--port', type=int, help='Server port')
parser.add_argument('-s', '--size', type=int, help='Bytes to send')
parser.add_argument('-a', '--alpha', type=float, help='Alpha', default=0.125)
parser.add_argument('-b', '--beta', type=float, help='Beta', default=0.25)
parser.add_argument('-k', '--kvar', type=float, help='K', default=4)
parser.add_argument('--fpath')
args = parser.parse_args()
with Socket(beta=args.beta, alpha=args.alpha, k=args.kvar, filepath = args.fpath) as sock:
print 'Connecting...'
print gethostbyname(args.host)
print args.port
sock.connect((gethostbyname(args.host), args.port), timeout=10)
print 'Connection established.'
print 'Sending file size...'
sock.send(pack('I', args.size)) #da la representacion en bytes de size
print 'Uploading %d bytes...' % args.size
sock.send('a' * args.size) #crea un string con 50 a's
sock.shutdown(SHUT_WR)
print 'Connection closed.'
import time
from ptc import Socket, SHUT_WR
from socket import gethostbyname
from struct import pack
parser = argparse.ArgumentParser()
parser.add_argument('--host', help='Server hostname')
parser.add_argument('-a', '--alpha', type=float, help='Start Alpha')
parser.add_argument('-b', '--beta', type=float, help='Start Beta')
parser.add_argument('-p', '--port', type=int, help='Server port')
parser.add_argument('-s', '--size', type=int, help='Bytes to send')
parser.add_argument('--fpath')
args = parser.parse_args()
alpha = args.alpha
beta = args.beta
filepath = args.fpath
with Socket(beta=beta, alpha=alpha, k=4, filepath=filepath) as sock:
print 'Connecting...'
print gethostbyname(args.host)
print args.port
sock.connect((gethostbyname(args.host), args.port), timeout=10)
print 'Connection established.'
print 'Sending file size...'
sock.send(pack('I', args.size)) #da la representacion en bytes de size
print 'Uploading %d bytes...' % args.size
sock.send('a' * args.size) #crea un string con 50 a's
sock.shutdown(SHUT_WR)
print 'Connection closed.'
parser = argparse.ArgumentParser()
parser.add_argument('--host', help='Server hostname')
parser.add_argument('-a', '--alpha', type=int, help='Start Alpha')
parser.add_argument('-b', '--beta', type=int, help='Start Beta')
parser.add_argument('-p', '--port', type=int, help='Server port')
parser.add_argument('-l', '--loss', type=float, default=0.0, help='probability of losing a packet (default 0)')
parser.add_argument('-s', '--size', type=int, help='Bytes to send')
parser.add_argument('--fpath')
args = parser.parse_args()
alphaStart = args.alpha
betaStart = args.beta
for alpha in range(alphaStart,11,1):
for beta in range(betaStart,11,1):
filepath = args.fpath
with Socket(beta=beta/10.0, alpha=alpha/10.0, k=4, filepath = filepath, packet_loss_probability=args.loss) as sock:
print 'Connecting...'
print gethostbyname(args.host)
print args.port
sock.connect((gethostbyname(args.host), args.port), timeout=10)
print 'Connection established.'
print 'Sending file size...'
sock.send(pack('I', args.size)) #da la representacion en bytes de size
print 'Uploading %d bytes...' % args.size
sock.send('a' * args.size) #crea un string con 50 a's
sock.shutdown(SHUT_WR)
time.sleep(1)
betaStart = 0
print 'Connection closed.'
from ptc import Socket, SHUT_WR
except:
import sys
sys.path.append('../../')
from ptc import Socket, SHUT_WR
SERVER_IP = '127.0.0.1'
SERVER_PORT = 6677
to_send = 'foo bar baz'
received = str()
# Usar sockets PTC dentro de bloques with. Esto nos asegura que los recursos
# subyacentes serán liberados de forma adecuada una vez que el socket ya no
# se necesite.
with Socket() as client_sock:
# Establecer una conexión al PTC corriendo en el puerto SERVER_PORT en
# el host con dirección SERVER_IP. Esta llamada es bloqueante, aunque
# en este caso se declara un timeout de 10 segundos. Pasado este tiempo,
# el protocolo se dará por vencido y la conexión no se establecerá.
client_sock.connect((SERVER_IP, SERVER_PORT), timeout=10)
# Una vez aquí, la conexión queda establecida exitosamente. Podemos enviar
# y recibir datos arbitrarios.
client_sock.send(to_send)
received += client_sock.recv(10)
# Cerramos nuestro stream de escritura pero podemos continuar recibiendo
# datos de la contraparte.
client_sock.shutdown(SHUT_WR)
received += client_sock.recv(20)
print 'client_sock received: %s' % received
type=float,
default=0.0,
help='ACK packet delay in seconds (default 0)')
#Agrego el parametro de perdida de ACK
parser.add_argument('-l',
'--loss',
type=float,
default=0.0,
help='probability of losing an ACK packet (default 0)')
#Agrego el parametro de puerto
parser.add_argument('-p', '--port', type=int, default=6677, help='PTC port')
args = parser.parse_args()
for alpha in range(0, 10, 1):
for beta in range(0, 10, 1):
with Socket(ack_delay=args.delay,
ack_loss_probability=args.loss) as sock:
sock.bind(('127.0.0.1', args.port))
sock.listen()
print 'Waiting for a client...'
sock.accept()
print 'Connection established.'
size = unpack('I', sock.recv(4))[0]
print 'Receiving %d bytes...' % size
received = str()
#Un while que solo reciba los datos y los lea del buffer
#Guarda los datos recibidos en received (print para verlo)
while len(received) < size:
received += sock.recv(size - len(received))
print 'Received %d bytes.' % len(received)
sock.close()
try:
from ptc import Socket
except:
import sys
sys.path.append('../../')
from ptc import Socket
SERVER_IP = '127.0.0.1'
SERVER_PORT = 6677
to_send = 'Lorem ipsum dolor sit amet'
received = str()
# Usar sockets PTC dentro de bloques with. Esto nos asegura que los recursos
# subyacentes serán liberados de forma adecuada una vez que el socket ya no
# se necesite.
with Socket() as server_sock:
# Ligar el socket a una interfaz local a través de la tupla (IP, PORT).
server_sock.bind((SERVER_IP, SERVER_PORT))
# Pasar al estado LISTEN.
server_sock.listen()
# Esta llamada se bloqueará hasta que otro PTC intente conectarse. No
# obstante, luego de diez segundos de no recibir conexiones, PTC se
# dará por vencido.
server_sock.accept(timeout=10)
# Una vez aquí, la conexión queda establecida exitosamente. Podemos enviar
# y recibir datos arbitrarios.
received += server_sock.recv(15)
server_sock.send(to_send)
print 'server_sock received: %s' % received
if len(sys.argv) >= 3:
protocol.ACK_chance = float(sys.argv[2])
#protocol.droppedPackets = 0
stopTimer = False
def change_delay():
protocol.ACK_delay = random.random() * 0.13 + 0.02
global stopTimer
if not stopTimer:
timer = threading.Timer(0.01, change_delay)
timer.start()
timer = threading.Timer(0.01, change_delay)
#timer.start()
with Socket() as sock1:
print "Server running on: " + get_lan_ip()
sock1.bind((get_lan_ip(), 6677))
sock1.listen()
sock1.accept()
while True:
data = sock1.recv(10)
#print "recibi algo: " + data
if data == tp_protocol.SEND:
#print "mando ok: "
sock1.send(tp_protocol.OK)
numBytes = int(sock1.recv(10))
#print "recibi numBytes: " + str(numBytes)
#print "mando ok: "
sock1.send(tp_protocol.OK)
