def heartbeat_timer(self):
try:
while True:
self.cfg.heartbeatactive.wait()
sleep(self.cfg.heartbeat_interval)
self.heartbeat_event.set()
self.heartbeat_event.clear()
except Exception:
log.critical("heartbeat_timer terminating due to exception", exc_info=True)
raise
def _run(self):
try:
self.state = self.state_startup
while True:
self.state = self.state()
except Exception:
log.critical("PortAgent terminating due to exception", exc_info=True)
raise
finally:
log.debug("Killing orbpkt src")
try: self.orbpktsrc.kill()
except: pass
log.debug("Stopping dataserver")
try: self.dataserver.stop()
except: pass
log.debug("Stopping cmdserver")
try: self.cmdserver.stop()
except: pass
log.debug("PortAgent finally done")
def cmd_driver(self, msg):
"""
Process a command message against the driver. If the command
exists as a driver attribute, call it passing supplied args and
kwargs and returning the driver result. Special messages that are
not forwarded to the driver are:
'stop_driver_process' - signal to close messaging and terminate.
'test_events' - populate event queue with test data.
'process_echo' - echos the message back.
If the command is not found in the driver, an echo message is
replied to the client.
@param msg A driver command message.
@retval The driver command result.
"""
cmd = msg.get('cmd', None)
args = msg.get('args', None)
kwargs = msg.get('kwargs', None)
cmd_func = getattr(self.driver, cmd, None)
log.debug("DriverProcess.cmd_driver(): cmd=%s, cmd_func=%s" %
(cmd, cmd_func))
if cmd == 'stop_driver_process':
self.stop_messaging()
return 'stop_driver_process'
elif cmd == 'test_events':
events = kwargs['events']
self.events += events
reply = 'test_events'
elif cmd == 'process_echo':
reply = 'ping from resource ppid:%s, resource:%s' % (str(
self.ppid), str(self.driver))
#try:
# msg = args[0]
#except IndexError:
# msg = 'no message to echo'
# reply = 'process_echo: %s' % msg
elif cmd_func:
try:
reply = cmd_func(*args, **kwargs)
except Exception as e:
reply = e
# Command error events are better handled in the agent directly.
#event = {
# 'type' : DriverAsyncEvent.ERROR,
# 'value' : str(e),
# 'exception' : e,
# 'time' : time.time()
#}
#self.send_event(event)
if not isinstance(e, InstrumentException):
trace = traceback.format_exc()
log.critical("Python error, Trace follows: \n%s" % trace)
else:
reply = InstrumentCommandException('Unknown driver command.')
# Command error events are better handled in the agent directly.
#event = {
# 'type' : DriverAsyncEvent.ERROR,
# 'value' : str(reply),
# 'exception' : reply,
# 'time' : time.time()
#}
#self.send_event(event)
return reply
def cmd_driver(self, msg):
"""
Process a command message against the driver. If the command
exists as a driver attribute, call it passing supplied args and
kwargs and returning the driver result. Special messages that are
not forwarded to the driver are:
'stop_driver_process' - signal to close messaging and terminate.
'test_events' - populate event queue with test data.
'process_echo' - echos the message back.
If the command is not found in the driver, an echo message is
replied to the client.
@param msg A driver command message.
@retval The driver command result.
"""
cmd = msg.get('cmd', None)
args = msg.get('args', None)
kwargs = msg.get('kwargs', None)
cmd_func = getattr(self.driver, cmd, None)
log.debug("DriverProcess.cmd_driver(): cmd=%s, cmd_func=%s" %(cmd, cmd_func))
if cmd == 'stop_driver_process':
self.stop_messaging()
return'stop_driver_process'
elif cmd == 'test_events':
events = kwargs['events']
self.events += events
reply = 'test_events'
elif cmd == 'process_echo':
reply = 'ping from resource ppid:%s, resource:%s' % (str(self.ppid), str(self.driver))
#try:
# msg = args[0]
#except IndexError:
# msg = 'no message to echo'
# reply = 'process_echo: %s' % msg
elif cmd_func:
try:
reply = cmd_func(*args, **kwargs)
except Exception as e:
reply = e
# Command error events are better handled in the agent directly.
#event = {
# 'type' : DriverAsyncEvent.ERROR,
# 'value' : str(e),
# 'exception' : e,
# 'time' : time.time()
#}
#self.send_event(event)
if not isinstance(e, InstrumentException):
trace = traceback.format_exc()
log.critical("Python error, Trace follows: \n%s" %trace)
else:
reply = InstrumentCommandException('Unknown driver command.')
# Command error events are better handled in the agent directly.
#event = {
# 'type' : DriverAsyncEvent.ERROR,
# 'value' : str(reply),
# 'exception' : reply,
# 'time' : time.time()
#}
#self.send_event(event)
return reply
