def __init__ (self, hname, hcf, ccscript):
super(ProxyHandler, self).__init__(hname, hcf, ccscript)
self.ping_remote = self.cf.getbool ("ping", False)
if self.ping_remote:
self.echo_stats = EchoState (self.remote_url)
self.echo_timer = PeriodicCallback (self.ping, self.ping_tick * 1000, self.ioloop)
self.echo_timer.start()
self.log.debug ("will ping %s", self.remote_url)
def __init__ (self, hname, hcf, ccscript):
super(ProxyHandler, self).__init__(hname, hcf, ccscript)
self.ping_remote = self.cf.getbool ("ping", False)
if self.ping_remote:
self.echo_stats = EchoState (self.remote_url)
self.echo_timer = PeriodicCallback (self.ping, self.ping_tick * 1000, self.ioloop)
self.echo_timer.start()
self.log.debug ("will ping %s", self.remote_url)
class ProxyHandler (BaseProxyHandler):
""" Simply proxies further """
log = skytools.getLogger ('h:ProxyHandler')
ping_tick = 1
def __init__ (self, hname, hcf, ccscript):
super(ProxyHandler, self).__init__(hname, hcf, ccscript)
self.ping_remote = self.cf.getbool ("ping", False)
if self.ping_remote:
self.echo_stats = EchoState (self.remote_url)
self.echo_timer = PeriodicCallback (self.ping, self.ping_tick * 1000, self.ioloop)
self.echo_timer.start()
self.log.debug ("will ping %s", self.remote_url)
def on_recv (self, zmsg):
""" Got message from remote CC, process it. """
try:
# pongs to our pings should come back w/o any routing info
if self.ping_remote and zmsg[0] == '':
self.log.trace ("%r", zmsg)
cmsg = CCMessage (zmsg)
req = cmsg.get_dest()
if req == "echo.response":
self._recv_pong (cmsg)
else:
self.log.warn ("unknown msg: %s", req)
except:
self.log.exception ("crashed")
finally:
super(ProxyHandler, self).on_recv(zmsg)
def _recv_pong (self, cmsg):
""" Pong received, evaluate it. """
msg = cmsg.get_payload (self.xtx)
if not msg: return
if msg.orig_target != self.remote_url:
self.log.warn ("unknown pong: %s", msg.orig_target)
return
echo = self.echo_stats
echo.update_pong (msg)
rtt = echo.time_pong - msg.orig_time
if msg.orig_time == echo.time_ping:
self.log.trace ("echo time: %f s (%s)", rtt, self.remote_url)
elif rtt <= 5 * self.ping_tick:
self.log.debug ("late pong: %f s (%s)", rtt, self.remote_url)
else:
self.log.info ("too late pong: %f s (%s)", rtt, self.remote_url)
def _send_ping (self):
""" Send ping to remote CC. """
msg = EchoRequestMessage(
target = self.remote_url)
cmsg = self.xtx.create_cmsg (msg)
self.stream.send_cmsg (cmsg)
self.echo_stats.update_ping (msg)
self.log.trace ("%r", msg)
def ping (self):
""" Echo requesting and monitoring. """
self.log.trace ("")
miss = self.echo_stats.time_ping - self.echo_stats.time_pong
if miss > 5 * self.ping_tick:
self.log.warn ("no pong from %s for %f s", self.remote_url, miss)
self._send_ping ()
def stop (self):
super(ProxyHandler, self).stop()
self.log.info ("stopping")
if hasattr (self, "echo_timer"):
self.echo_timer.stop()
class ProxyHandler(BaseProxyHandler):
""" Simply proxies further """
log = skytools.getLogger('h:ProxyHandler')
ping_tick = 1
def __init__(self, hname, hcf, ccscript):
super(ProxyHandler, self).__init__(hname, hcf, ccscript)
self.ping_remote = self.cf.getbool("ping", False)
if self.ping_remote:
self.echo_stats = EchoState(self.remote_url)
self.echo_timer = PeriodicCallback(self.ping,
self.ping_tick * 1000,
self.ioloop)
self.echo_timer.start()
self.log.debug("will ping %s", self.remote_url)
def on_recv(self, zmsg):
""" Got message from remote CC, process it. """
try:
# pongs to our pings should come back w/o any routing info
if self.ping_remote and zmsg[0] == '':
self.log.trace("%r", zmsg)
cmsg = CCMessage(zmsg)
req = cmsg.get_dest()
if req == "echo.response":
self._recv_pong(cmsg)
else:
self.log.warn("unknown msg: %s", req)
except:
self.log.exception("crashed")
finally:
super(ProxyHandler, self).on_recv(zmsg)
def _recv_pong(self, cmsg):
""" Pong received, evaluate it. """
msg = cmsg.get_payload(self.xtx)
if not msg: return
if msg.orig_target != self.remote_url:
self.log.warn("unknown pong: %s", msg.orig_target)
return
echo = self.echo_stats
echo.update_pong(msg)
rtt = echo.time_pong - msg.orig_time
if msg.orig_time == echo.time_ping:
self.log.trace("echo time: %f s (%s)", rtt, self.remote_url)
elif rtt <= 5 * self.ping_tick:
self.log.debug("late pong: %f s (%s)", rtt, self.remote_url)
else:
self.log.info("too late pong: %f s (%s)", rtt, self.remote_url)
def _send_ping(self):
""" Send ping to remote CC. """
msg = EchoRequestMessage(target=self.remote_url)
cmsg = self.xtx.create_cmsg(msg)
self.stream.send_cmsg(cmsg)
self.echo_stats.update_ping(msg)
self.log.trace("%r", msg)
def ping(self):
""" Echo requesting and monitoring. """
self.log.trace("")
echo = self.echo_stats
if echo.time_ping - echo.time_pong > 5 * self.ping_tick:
self.log.warn("no pong from %s for %f s", self.remote_url,
echo.time_ping - echo.time_pong)
self._send_ping()
def stop(self):
super(ProxyHandler, self).stop()
self.log.info("stopping")
if hasattr(self, "echo_timer"):
self.echo_timer.stop()
