def _receive_response(self, response_obj, timeout_secs):
# If our response object is fixed width, then just read the number of bytes
# we need, parse the response, and return.
if response_obj.isFixedWidth():
len_obj = response_obj.getWidth()
data = self.connection.read(len_obj, timeout_secs)
match_obj = response_obj.isMatch(data, 0)
# If we got a match, then return success!
if match_obj.isMatch() == 1:
return 1
# Apparently we didn't get the response we were expecting. Return failure.
return 0
else:
# Our response object is not fixed width, so read data one byte at a time
# until we either get a full match, a definitive non-match or a timeout.
data = ''
st_time = gdutil.get_time()
while 1:
curtime = gdutil.get_time()
if curtime - st_time > timeout_secs:
raise gdutil.GDTimeoutException("Got trying to read matching data")
new_data = self.connection.read(1, timeout_secs)
if new_data:
data += new_data
if self.debug > 2:
print 'calling isMatch with %s' % gdutil.dump_binary_str(data)
match_obj = response_obj.isMatch(data, 0)
# If we got a match, then return success!
if match_obj.isMatch() == 1:
return 1
# If we got a definitive non-match, return failure.
if match_obj.isNotMatch() == 1:
return 0
def isMatch(self, data, offset):
if self.debug > 6:
print 'In isMatch() with offset %d, and data.' % offset, gdutil.dump_binary_str(data)
val = self._getValue(data, offset)
if val is None:
# Don't have enough data yet.
return IsMatchReturn(0)
if self.debug > 6:
print 'Got val of %s' % str(val)
if not self.initial_value is None:
if self._float_cmp(self.initial_value, val) == 0:
self.value = val
if self.debug > 6:
print 'Got a match for %s.' % str(val)
self.updateNodeValue(val)
return IsMatchReturn(1, self.getWidth())
else:
return IsMatchReturn(-1)
else:
# If we don't have an initial value, then anything is a match.
#print 'No initial value.'
self.value = val
self.updateNodeValue(val)
return IsMatchReturn(1, self.getWidth())
