def __configure_edge_reliability(self, a, b, relistr, edict):
relidict = fsutil.mkdict(relistr)
ttf = ttr = None
for k, v in relidict.iteritems():
if k == 'failureafter':
ttf = eval(v)
if isinstance(ttf, (int, float)):
ttf = modulation_generator([ttf])
elif k == 'downfor':
ttr = eval(v)
if isinstance(ttr, (int, float)):
ttr = modulation_generator([ttr])
elif k == 'mttf':
ttf = eval(v)
elif k == 'mttr':
ttr = eval(v)
if ttf or ttr:
assert (ttf and ttr)
xttf = next(ttf)
self.after(xttf, 'link-failure-' + a + '-' + b, self.__linkdown, a,
b, edict, ttf, ttr)
def __configure_edge_reliability(self, a, b, relistr, edict):
relidict = fsutil.mkdict(relistr)
ttf = ttr = None
for k,v in relidict.iteritems():
if k == 'failureafter':
ttf = eval(v)
if isinstance(ttf, (int, float)):
ttf = modulation_generator([ttf])
elif k == 'downfor':
ttr = eval(v)
if isinstance(ttr, (int, float)):
ttr = modulation_generator([ttr])
elif k == 'mttf':
ttf = eval(v)
elif k == 'mttr':
ttr = eval(v)
if ttf or ttr:
assert(ttf and ttr)
xttf = next(ttf)
fscore().after(xttf, 'link-failure-'+a+'-'+b, self.__linkdown, a, b, edict, ttf, ttr)
fm = FlowEventGenModulator(tgen, stime=st, emerge_profile=emerge, sustain_profile=profile, withdraw_profile=withdraw)
return fm
def __configure_traf_spec(self, trafname, trafspec, srcnode):
'''Configure a traffic generator based on specification elements'''
trafspeclist = trafspec.split()
# first item in the trafspec list should be the traffic generator name.
# also need to traverse the remainder of the and do substitutions for common configuration elements
specname = trafspeclist[0].strip()
tclass = specname.capitalize()
fulltrafspec = trafspeclist[1:]
trafgenname = "{}TrafficGenerator".format(tclass)
try:
importname = "traffic_generators.{}".format(specname)
m = import_module(importname)
except ImportError,e:
raise InvalidTrafficSpecification(trafspec)
classobj = getattr(m, trafgenname)
if not classobj:
self.logger.warn("Bad config: can't find TrafficGenerator class named {0}. Add the class '{0}' to traffic.py, or fix the config.".format(trafgenname))
raise InvalidTrafficSpecification(trafspec)
else:
trafdict = fsutil.mkdict(fulltrafspec)
self.logger.debug("Creating {} with specification {}".format(str(classobj),trafdict))
gen = lambda: classobj(srcnode, **trafdict)
return gen
