def __init__(self, wrk=None, message=None):
self.logger = mylog.logstart("tracker_log")
self.fifo_send = collections.deque()
self.fifo_recv = collections.deque()
self.ctx = zmq.Context.instance()
self.loop = ioloop.IOLoop.instance()
self.current = None # most up to date timestamp from camera
self.routerConnect()
self.brokerSubscribe()
self.cameraCreate("camera server")
self.ctrackerStart()
if message and wrk:
message[-2] = self.camera_port
self.logger.debug("respond to broker, being tracker, from worker sock (: %s" % message)
wrk.send_multipart(message) # notify router that role has change
def __init__(self):
self.logger = mylog.logstart("worker_log")
self.ctx = zmq.Context.instance()
self.loop = ioloop.IOLoop.instance()
brk_sock = self.ctx.socket(zmq.REQ)
brk_sock.connect("tcp://127.0.0.1:4444")
self.brk = zmqstream.ZMQStream(brk_sock, self.loop)
self.brk.on_recv(self.brokerRecv)
self.brk.on_send(self.brokerSend)
rtr_sock = self.ctx.socket(zmq.REQ)
rtr_sock.setsockopt(zmq.IDENTITY, sys.argv[1])
rtr_sock.connect("tcp://127.0.0.1:9999")
self.rtr = zmqstream.ZMQStream(rtr_sock, self.loop)
self.rtr.on_recv(self.routerRecv)
self.rtr.on_send(self.routerSend)
self.rtr.send("ready")
self.loop.start()
def __init__(self):
self.logger = mylog.logstart('broker_log')
gui_sock = ctx.socket(zmq.REP)
gui_sock.bind('tcp://*:2222')
self.gui = zmqstream.ZMQStream(gui_sock, loop)
self.gui.on_recv(self.guiRecv)
self.gui.on_send(self.guiSend)
icm_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0)
icm_sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
icm_sock.setblocking(0)
icm_sock.bind(('', 3333))
icm_sock.listen(128)
callback = functools.partial(self.cameraConnect, icm_sock)
loop.add_handler(icm_sock.fileno(), callback, loop.READ)
wrk_sock = ctx.socket(zmq.REP)
wrk_sock.bind('tcp://*:4444')
self.wrk = zmqstream.ZMQStream(wrk_sock, loop)
self.wrk.on_recv(self.workerRecv)
self.wrk.on_send(self.workerSend)
def __init__(self):
logger = mylog.logstart('router_log')
ctx = zmq.Context()
wrk_sock = ctx.socket(zmq.XREP)
wrk_sock.bind('tcp://127.0.0.1:9999')
trk_sock = ctx.socket(zmq.XREP)
trk_sock.bind('tcp://127.0.0.1:7777')
available_workers = 0
workers = [] #avaiable worker's addresses
poller = zmq.Poller()
poller.register(trk_sock, zmq.POLLIN)
poller.register(wrk_sock, zmq.POLLIN)
while True:
active_socks = dict(poller.poll())
if wrk_sock in active_socks and active_socks[wrk_sock] == zmq.POLLIN:
wrk_addr = wrk_sock.recv()
logger.debug('worker address: %s' % wrk_addr)
workers.append(wrk_addr)
available_workers += 1
logger.debug('workers: %s' % available_workers)
empty = wrk_sock.recv()
assert empty == ''
trk_addr = wrk_sock.recv()
logger.debug('trk_addr: %s' % trk_addr)
if trk_addr != 'ready':
empty = wrk_sock.recv()
assert empty == ''
reply = wrk_sock.recv(copy=False)
logger.debug('reply: %s' % reply)
command = wrk_sock.recv()
if command == 'finish':
logger.debug('finish worker: %s' % wrk_addr)
workers.pop()
available_workers -= 1
trk_sock.send_multipart([trk_addr, '', wrk_addr, '', reply])
if available_workers > 0:
logger.debug('workers are available - polling trackers')
if trk_sock in active_socks and active_socks[trk_sock] == zmq.POLLIN:
logger.debug('activity on trackers')
trk_addr = trk_sock.recv()
#logger.debug('trk_addr: %s' % trk_addr)
empty = trk_sock.recv()
#logger.debug('empty?: %s' % empty)
assert empty == ''
request = trk_sock.recv(copy=False)
logger.debug('request: %s' % request)
image = trk_sock.recv(copy=False)
available_workers -= 1
wrk_addr = workers.pop()
wrk_sock.send_multipart([wrk_addr, '', trk_addr, '', request, image])
logger.debug('connection with tracker established')
self.timestamp = (i for i in xrange(1000))
t = task.LoopingCall(self.photoReceived)
t.start(1)
def photoReceived(self):
try:
photo='%s\r\n' % str(self.timestamp.next())
logger.debug('send photo to tracker %s ' % photo)
self.transport.write(photo)
except:
self.transport.loseConnection()
def lineReceived(self, data):
logger.debug(data)
def connectionLost(self, *args):
logger.debug('connection lost')
class ICMFactory(protocol.ClientFactory):
protocol = ICMtoBroker
def newConnection(addr, port, protocol):
factory = ICMFactory()
factory.protocol = protocol
reactor.connectTCP(addr, port, factory)
logger = mylog.logstart('icm_camera')
newConnection('127.0.0.1', 3333, ICMtoBroker)
reactor.run()
