def Parse(cls, s):
r = Response.Parse(s)
if not (r and r.name == 'read_var'):
return r
var = SharedVar(r)
m = SharedVar._rx.match(var.params)
if not m:
print 'read_var received but failed to parse:'
print var.params
return None
var.svType = m.group('type') + ('[]' if m.group('array') else '')
var.size = -1 if not m.group('size') else int(m.group('size'))
var.varName = m.group('name')
var.data = m.group('data')
var.report = m.group('report')
var.subscription = m.group('subscription')
var.writer = m.group('writer')
var.isNotification = not not var.report
var.data = SharedVar._ProcessReadVar(var)
return var
def _parsingThread(self):
while True:
data = BB._incomingMessages.get()
el = SharedVar.Parse(data)
if el and el.isNotification:
handler = None
BB._subscriptionHandlersLock.acquire()
if el.varName in BB._subscriptionHandlers:
handler = BB._subscriptionHandlers[el.varName]
BB._subscriptionHandlersLock.release()
if not handler:
print 'ERROR: No handler for shared variable: ' + el.varName
continue
try:
handler(el)
except:
print 'Handler for shared var: "' + el.varName + '" crashed.'
continue
if not el:
el = Response.Parse(data)
if el:
print "Something that wasn't supposed to happen happened"
if el:
BB._commandsLock.acquire()
if el in BB._sentCommands:
BB._responsesLock.acquire()
BB._receivedResponses[el] = el
BB._responsesLock.release()
elif self._asyncHandler:
self._asyncHandler(el)
else:
print 'Response without awaiting command: ' + repr(el)
BB._commandsLock.release()
continue
el = Command.Parse(data)
if el:
BB._receivedCommands.put(el)
continue
print 'Invalid message received: ' + data + '_len(' + str(
len(data)) + ')'