def _v6ToInternet_notif(self,sender,signal,data):
'''
Called when receiving data from the EventBus.
This function forwards the data to the the TUN interface.
Read from tun interface and forward to 6lowPAN
'''
# abort if not tun interface
if not self.tunIf:
return
# add tun header
data = VIRTUALTUNID + data
# convert data to string
data = ''.join([chr(b) for b in data])
try:
# write over tuntap interface
os.write(self.tunIf, data)
if log.isEnabledFor(logging.DEBUG):
log.debug("data dispatched to tun correctly {0}, {1}".format(signal,sender))
except Exception as err:
errMsg=u.formatCriticalMessage(err)
print errMsg
log.critical(errMsg)
def _v6ToInternet_notif(self, sender, signal, data):
'''
Called when receiving data from the EventBus.
This function forwards the data to the the TUN interface.
Read from tun interface and forward to 6lowPAN
'''
# abort if not tun interface
if not self.tunIf:
return
# add tun header
data = VIRTUALTUNID + data
# convert data to string
data = ''.join([chr(b) for b in data])
try:
# write over tuntap interface
os.write(self.tunIf, data)
if log.isEnabledFor(logging.DEBUG):
log.debug("data dispatched to tun correctly {0}, {1}".format(
signal, sender))
except Exception as err:
errMsg = u.formatCriticalMessage(err)
print errMsg
log.critical(errMsg)
def _cycleDIO(self):
"""
Send DIO and schedule next send.
"""
try:
self._sendDIO()
except Exception as err:
errMsg = u.formatCriticalMessage(err)
print errMsg
log.critical(errMsg)
finally:
# Must ensure next send is scheduled
self._scheduleSendDIO(self.DIO_PERIOD)
def _cycleDIO(self):
'''
Send DIO and schedule next send.
'''
try:
self._sendDIO()
except Exception as err:
errMsg = u.formatCriticalMessage(err)
print errMsg
log.critical(errMsg)
finally:
# Must ensure next send is scheduled
self._scheduleSendDIO(self.DIO_PERIOD)
def cmd_setCompare(self,compareValue):
'''
emulates
void sctimer_setCompare(PORT_TIMER_WIDTH compareValue)
'''
try:
# enable interrupt
self.cmd_enable()
# log the activity
if self.log.isEnabledFor(logging.DEBUG):
self.log.debug('cmd_setCompare compareValue=' + str(compareValue))
# get current counter value
counterVal = self.hwCrystal.getTicksSince(self.timeLastReset)
# how many ticks until compare event
if counterVal - compareValue > 0 and counterVal - compareValue < self.LOOP_THRESHOLD:
# we're already too late, schedule compare event right now
ticksBeforeEvent = 0
else:
ticksBeforeEvent = compareValue - counterVal
# print "compareValue {0} counterVal {1} self.timeLastReset {2}".format(compareValue,counterVal, self.timeLastReset)
# calculate time at overflow event
compareTime = self.hwCrystal.getTimeIn(ticksBeforeEvent)
# schedule compare event
self.timeline.scheduleEvent(compareTime,
self.motehandler.getId(),
self.intr_compare,
self.INTR_COMPARE)
# the compare is now scheduled
self.compareArmed = True
except Exception as err:
errMsg=u.formatCriticalMessage(err)
print errMsg
self.log.critical(errMsg)
def _v6ToInternet_notif(self,sender,signal,data):
'''
Called when receiving data from the EventBus.
This function forwards the data to the the TUN interface.
'''
# convert data to string
data = ''.join([chr(b) for b in data])
# write over tuntap interface
try:
win32file.WriteFile(self.tunIf, data, self.overlappedTx)
win32event.WaitForSingleObject(self.overlappedTx.hEvent, win32event.INFINITE)
self.overlappedTx.Offset = self.overlappedTx.Offset + len(data)
if log.isEnabledFor(logging.DEBUG):
log.debug("data dispatched to tun correctly {0}, {1}".format(signal,sender))
except Exception as err:
errMsg=u.formatCriticalMessage(err)
print errMsg
log.critical(errMsg)
def _v6ToInternet_notif(self,sender,signal,data):
'''
Called when receiving data from the EventBus.
This function forwards the data to the the TUN interface.
'''
# convert data to string
data = ''.join([chr(b) for b in data])
# write over tuntap interface
try:
win32file.WriteFile(self.tunIf, data, self.overlappedTx)
win32event.WaitForSingleObject(self.overlappedTx.hEvent, win32event.INFINITE)
self.overlappedTx.Offset = self.overlappedTx.Offset + len(data)
if log.isEnabledFor(logging.DEBUG):
log.debug("data dispatched to tun correctly {0}, {1}".format(signal,sender))
except Exception as err:
errMsg=u.formatCriticalMessage(err)
print errMsg
log.critical(errMsg)
def cmd_scheduleIn(self,delayTicks):
'''
emulates
void bsp_timer_scheduleIn(PORT_TIMER_WIDTH delayTicks)
'''
try:
# log the activity
if self.log.isEnabledFor(logging.DEBUG):
self.log.debug('cmd_scheduleIn delayTicks='+str(delayTicks))
# get number of ticks since last compare
ticksSinceCompare = self.hwCrystal.getTicksSince(self.timeLastCompare)
# how many ticks until compare event
if ticksSinceCompare>delayTicks:
# we're already too late, schedule compare event right now
ticksBeforeEvent = 0
else:
ticksBeforeEvent = delayTicks-ticksSinceCompare
# calculate time at overflow event (in 'period' ticks)
compareTime = self.hwCrystal.getTimeIn(ticksBeforeEvent)
# schedule compare event
self.timeline.scheduleEvent(
atTime = compareTime,
moteId = self.motehandler.getId(),
cb = self.intr_compare,
desc = self.INTR_COMPARE,
)
# the compare is now scheduled
self.compareArmed = True
except Exception as err:
errMsg=u.formatCriticalMessage(err)
print errMsg
log.critical(errMsg)
