def pmt_to_dict(p):
d = dict()
items = pmt.pmt_dict_items(p)
for i in range(pmt.pmt_length(items)):
pair = pmt.pmt_nth(i, items)
k = pmt.pmt_car(pair)
v = pmt.pmt_cdr(pair)
d[pmt_to_python(k)] = pmt_to_python(v)
return d
def pmt_to_dict(p):
d = dict()
items = pmt.pmt_dict_items(p)
for i in range(pmt.pmt_length(items)):
pair = pmt.pmt_nth(i, items)
k = pmt.pmt_car(pair)
v = pmt.pmt_cdr(pair)
d[pmt_to_python(k)] = pmt_to_python(v)
return d
def handle_request(self, pdu ):
if pmt.pmt_is_pair(pdu):
# get the first and last elements of the pair
fcn_name = pmt.to_python(pmt.pmt_car(pdu))
request = pmt.to_python(pmt.pmt_cdr(pdu))
#try to parse the request
try:
args, kwargs = request
if args is None: args = tuple()
if kwargs is None: kwargs = dict()
except:
err = 'cannot parse request for %s, expected tuple of args, kwargs'%fcn_name
print err
#return request, None, err
return
#exec python code and squash down to objects
args = map(self._exec_arg, args)
for key, val in kwargs.iteritems():
kwargs[key] = self._exec_arg(val)
#fly through dots to get the fcn pointer
try:
fcn_ptr = self._obj
for name in fcn_name.split('.'):
fcn_ptr = getattr(fcn_ptr, name)
except:
err = 'cannot find function %s in %s'%(fcn_name, self._obj)
print err
#return request, None, err
return
#try to execute the request
try:
ret = fcn_ptr(*args, **kwargs)
except Exception as ex:
err = 'cannot execute request for %s, got error %s'%(fcn_name, ex)
print err
#return request, None, err
return
#return the sucess result
#return request, ret, None
self.message_port_pub(self.OUT_PORT, pmt.from_python(ret))
def parse_extra_dict(p, info, VERBOSE=False):
if(pmt.pmt_is_dict(p) is False):
sys.stderr.write("Extra header is not a PMT dictionary: invalid or corrupt data file.\n")
sys.exit(1)
items = pmt.pmt_dict_items(p)
nitems = pmt.pmt_length(items)
for i in xrange(nitems):
item = pmt.pmt_nth(i, items)
key = pmt.pmt_symbol_to_string(pmt.pmt_car(item))
val = pmt.pmt_cdr(item)
info[key] = val
if(VERBOSE):
print "{0}: ".format(key)
pmt.pmt_print(val)
return info
