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import socket | |
import select | |
import sys | |
__EPOLL_TIMEOUT = 1.0 | |
__BUFFER_SZ = 8192 | |
yeti_request ="GET /bap HTTP/1.1\r\nConnection: keep-alive\r\nContent-Length: 0\r\n\r\n" | |
epoll = None | |
socket_set = {} | |
def sendAll(): | |
"""Send yeti_request on socket""" | |
for id in socket_set.keys(): | |
s = socket_set[id] | |
n = s.send(yeti_request) | |
print "Sent: {}".format(yeti_request[0:n]) | |
if(n < len(yeti_request)): | |
raise Error("Socket buffer full") | |
def send(id): | |
"""Send yeti_request on socket""" | |
if id in socket_set.keys(): | |
s = socket_set[id] | |
n = s.send(yeti_request) | |
print "Sent: {}".format(yeti_request[0:n]) | |
if(n < len(yeti_request)): | |
raise Error("Socket buffer full") | |
return n | |
def mux_epoll(): | |
"""Run the epoll select loop one time through""" | |
events = epoll.poll(__EPOLL_TIMEOUT) | |
for fileno, event in events: | |
if event & select.EPOLLIN: | |
try: | |
s = socket_set[fileno] | |
resp=s.recv(__BUFFER_SZ) | |
if(len(resp) > 0): | |
if "404" in resp or "204" in resp or "200" in resp: | |
sys.stdout.write("Recv[{}]: {}".format(fileno, resp)) | |
#send(s.fileno()) | |
else: | |
sys.stadout.write(resp) | |
else: | |
s.close() | |
del socket_set[fileno] | |
except socket.error as msg: | |
logging.error("Failed to read. {}".format(msg)); | |
s = socket_set[fileno] | |
s.close() | |
del socket_set[fileno] | |
elif event & select.EPOLLHUP: | |
s = socket_set[fileno] | |
s.close() | |
del socket_set[fileno] | |
def mux_select(): | |
"""Run the epoll select loop one time through""" | |
events = select.select(socket_set.keys(), [], [], __EPOLL_TIMEOUT) | |
for sid in events[0]: | |
s = socket_set[sid] | |
fileno = s.fileno() | |
try: | |
resp=s.recv(__BUFFER_SZ) | |
if(len(resp) > 0): | |
if("404" in resp) or "204" in resp or "200" in resp: | |
sys.stdout.write("Recv[{}]: {}".format(fileno,resp)) | |
#send(sid) | |
else: | |
sys.stdout.write(resp) | |
else: | |
s.close() | |
del socket_set[fileno] | |
except socket.error as msg: | |
logging.error("Failed to read. {}".format(msg)); | |
s.close() | |
del socket_set[fileno] | |
# Ack! Dirty MacOS! | |
#epoll = select.epoll() | |
for i in range(4): | |
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | |
s.connect(('localhost', 8088)) | |
s.setblocking(0) | |
socket_set[s.fileno()] = s | |
#epoll.register(s.fileno(), select.EPOLLIN) | |
sendAll() | |
while len(socket_set) > 0: | |
mux_select() |
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python select and epoll example - epoll does not work on MacOS