# Copyright (c) 2004-2006 The Regents of The University of Michigan # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer; # redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution; # neither the name of the copyright holders nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # # Authors: Steve Reinhardt # Nathan Binkert import sys, types import proxy import m5 from util import * # These utility functions have to come first because they're # referenced in params.py... otherwise they won't be defined when we # import params below, and the recursive import of this file from # params.py will not find these names. def isSimObject(value): return isinstance(value, SimObject) def isSimObjectClass(value): return issubclass(value, SimObject) def isSimObjectSequence(value): if not isinstance(value, (list, tuple)) or len(value) == 0: return False for val in value: if not isNullPointer(val) and not isSimObject(val): return False return True def isSimObjectOrSequence(value): return isSimObject(value) or isSimObjectSequence(value) # Have to import params up top since Param is referenced on initial # load (when SimObject class references Param to create a class # variable, the 'name' param)... from params import * # There are a few things we need that aren't in params.__all__ since # normal users don't need them from params import ParamDesc, VectorParamDesc, isNullPointer, SimObjVector noDot = False try: import pydot except: noDot = True ##################################################################### # # M5 Python Configuration Utility # # The basic idea is to write simple Python programs that build Python # objects corresponding to M5 SimObjects for the desired simulation # configuration. For now, the Python emits a .ini file that can be # parsed by M5. In the future, some tighter integration between M5 # and the Python interpreter may allow bypassing the .ini file. # # Each SimObject class in M5 is represented by a Python class with the # same name. The Python inheritance tree mirrors the M5 C++ tree # (e.g., SimpleCPU derives from BaseCPU in both cases, and all # SimObjects inherit from a single SimObject base class). To specify # an instance of an M5 SimObject in a configuration, the user simply # instantiates the corresponding Python object. The parameters for # that SimObject are given by assigning to attributes of the Python # object, either using keyword assignment in the constructor or in # separate assignment statements. For example: # # cache = BaseCache(size='64KB') # cache.hit_latency = 3 # cache.assoc = 8 # # The magic lies in the mapping of the Python attributes for SimObject # classes to the actual SimObject parameter specifications. This # allows parameter validity checking in the Python code. Continuing # the example above, the statements "cache.blurfl=3" or # "cache.assoc='hello'" would both result in runtime errors in Python, # since the BaseCache object has no 'blurfl' parameter and the 'assoc' # parameter requires an integer, respectively. This magic is done # primarily by overriding the special __setattr__ method that controls # assignment to object attributes. # # Once a set of Python objects have been instantiated in a hierarchy, # calling 'instantiate(obj)' (where obj is the root of the hierarchy) # will generate a .ini file. # ##################################################################### # list of all SimObject classes allClasses = {} # dict to look up SimObjects based on path instanceDict = {} # The metaclass for SimObject. This class controls how new classes # that derive from SimObject are instantiated, and provides inherited # class behavior (just like a class controls how instances of that # class are instantiated, and provides inherited instance behavior). class MetaSimObject(type): # Attributes that can be set only at initialization time init_keywords = { 'abstract' : types.BooleanType, 'cxx_namespace' : types.StringType, 'cxx_class' : types.StringType, 'cxx_type' : types.StringType, 'cxx_predecls' : types.ListType, 'swig_objdecls' : types.ListType, 'swig_predecls' : types.ListType, 'type' : types.StringType } # Attributes that can be set any time keywords = { 'check' : types.FunctionType } # __new__ is called before __init__, and is where the statements # in the body of the class definition get loaded into the class's # __dict__. We intercept this to filter out parameter & port assignments # and only allow "private" attributes to be passed to the base # __new__ (starting with underscore). def __new__(mcls, name, bases, dict): assert name not in allClasses # Copy "private" attributes, functions, and classes to the # official dict. Everything else goes in _init_dict to be # filtered in __init__. cls_dict = {} value_dict = {} for key,val in dict.items(): if key.startswith('_') or isinstance(val, (types.FunctionType, types.TypeType)): cls_dict[key] = val else: # must be a param/port setting value_dict[key] = val if 'abstract' not in value_dict: value_dict['abstract'] = False cls_dict['_value_dict'] = value_dict cls = super(MetaSimObject, mcls).__new__(mcls, name, bases, cls_dict) if 'type' in value_dict: allClasses[name] = cls return cls # subclass initialization def __init__(cls, name, bases, dict): # calls type.__init__()... I think that's a no-op, but leave # it here just in case it's not. super(MetaSimObject, cls).__init__(name, bases, dict) # initialize required attributes # class-only attributes cls._params = multidict() # param descriptions cls._ports = multidict() # port descriptions # class or instance attributes cls._values = multidict() # param values cls._port_refs = multidict() # port ref objects cls._instantiated = False # really instantiated, cloned, or subclassed # We don't support multiple inheritance. If you want to, you # must fix multidict to deal with it properly. if len(bases) > 1: raise TypeError, "SimObjects do not support multiple inheritance" base = bases[0] # Set up general inheritance via multidicts. A subclass will # inherit all its settings from the base class. The only time # the following is not true is when we define the SimObject # class itself (in which case the multidicts have no parent). if isinstance(base, MetaSimObject): cls._params.parent = base._params cls._ports.parent = base._ports cls._values.parent = base._values cls._port_refs.parent = base._port_refs # mark base as having been subclassed base._instantiated = True # default keyword values if 'type' in cls._value_dict: _type = cls._value_dict['type'] if 'cxx_class' not in cls._value_dict: cls._value_dict['cxx_class'] = _type namespace = cls._value_dict.get('cxx_namespace', None) _cxx_class = cls._value_dict['cxx_class'] if 'cxx_type' not in cls._value_dict: t = _cxx_class + '*' if namespace: t = '%s::%s' % (namespace, t) cls._value_dict['cxx_type'] = t if 'cxx_predecls' not in cls._value_dict: # A forward class declaration is sufficient since we are # just declaring a pointer. decl = 'class %s;' % _cxx_class if namespace: namespaces = namespace.split('::') namespaces.reverse() for namespace in namespaces: decl = 'namespace %s { %s }' % (namespace, decl) cls._value_dict['cxx_predecls'] = [decl] if 'swig_predecls' not in cls._value_dict: # A forward class declaration is sufficient since we are # just declaring a pointer. cls._value_dict['swig_predecls'] = \ cls._value_dict['cxx_predecls'] if 'swig_objdecls' not in cls._value_dict: cls._value_dict['swig_objdecls'] = [] # Now process the _value_dict items. They could be defining # new (or overriding existing) parameters or ports, setting # class keywords (e.g., 'abstract'), or setting parameter # values or port bindings. The first 3 can only be set when # the class is defined, so we handle them here. The others # can be set later too, so just emulate that by calling # setattr(). for key,val in cls._value_dict.items(): # param descriptions if isinstance(val, ParamDesc): cls._new_param(key, val) # port objects elif isinstance(val, Port): cls._new_port(key, val) # init-time-only keywords elif cls.init_keywords.has_key(key): cls._set_keyword(key, val, cls.init_keywords[key]) # default: use normal path (ends up in __setattr__) else: setattr(cls, key, val) def _set_keyword(cls, keyword, val, kwtype): if not isinstance(val, kwtype): raise TypeError, 'keyword %s has bad type %s (expecting %s)' % \ (keyword, type(val), kwtype) if isinstance(val, types.FunctionType): val = classmethod(val) type.__setattr__(cls, keyword, val) def _new_param(cls, name, pdesc): # each param desc should be uniquely assigned to one variable assert(not hasattr(pdesc, 'name')) pdesc.name = name cls._params[name] = pdesc if hasattr(pdesc, 'default'): cls._set_param(name, pdesc.default, pdesc) def _set_param(cls, name, value, param): assert(param.name == name) try: cls._values[name] = param.convert(value) except Exception, e: msg = "%s\nError setting param %s.%s to %s\n" % \ (e, cls.__name__, name, value) e.args = (msg, ) raise def _new_port(cls, name, port): # each port should be uniquely assigned to one variable assert(not hasattr(port, 'name')) port.name = name cls._ports[name] = port if hasattr(port, 'default'): cls._cls_get_port_ref(name).connect(port.default) # same as _get_port_ref, effectively, but for classes def _cls_get_port_ref(cls, attr): # Return reference that can be assigned to another port # via __setattr__. There is only ever one reference # object per port, but we create them lazily here. ref = cls._port_refs.get(attr) if not ref: ref = cls._ports[attr].makeRef(cls) cls._port_refs[attr] = ref return ref # Set attribute (called on foo.attr = value when foo is an # instance of class cls). def __setattr__(cls, attr, value): # normal processing for private attributes if attr.startswith('_'): type.__setattr__(cls, attr, value) return if cls.keywords.has_key(attr): cls._set_keyword(attr, value, cls.keywords[attr]) return if cls._ports.has_key(attr): cls._cls_get_port_ref(attr).connect(value) return if isSimObjectOrSequence(value) and cls._instantiated: raise RuntimeError, \ "cannot set SimObject parameter '%s' after\n" \ " class %s has been instantiated or subclassed" \ % (attr, cls.__name__) # check for param param = cls._params.get(attr) if param: cls._set_param(attr, value, param) return if isSimObjectOrSequence(value): # If RHS is a SimObject, it's an implicit child assignment. # Classes don't have children, so we just put this object # in _values; later, each instance will do a 'setattr(self, # attr, _values[attr])' in SimObject.__init__ which will # add this object as a child. cls._values[attr] = value return # no valid assignment... raise exception raise AttributeError, \ "Class %s has no parameter \'%s\'" % (cls.__name__, attr) def __getattr__(cls, attr): if cls._values.has_key(attr): return cls._values[attr] raise AttributeError, \ "object '%s' has no attribute '%s'" % (cls.__name__, attr) def __str__(cls): return cls.__name__ def get_base(cls): if str(cls) == 'SimObject': return None return cls.__bases__[0].type def cxx_decl(cls): code = "#ifndef __PARAMS__%s\n" % cls code += "#define __PARAMS__%s\n\n" % cls # The 'dict' attribute restricts us to the params declared in # the object itself, not including inherited params (which # will also be inherited from the base class's param struct # here). params = cls._params.local.values() try: ptypes = [p.ptype for p in params] except: print cls, p, p.ptype_str print params raise # get a list of lists of predeclaration lines predecls = [] predecls.extend(cls.cxx_predecls) for p in params: predecls.extend(p.cxx_predecls()) # remove redundant lines predecls2 = [] for pd in predecls: if pd not in predecls2: predecls2.append(pd) predecls2.sort() code += "\n".join(predecls2) code += "\n\n"; base = cls.get_base() if base: code += '#include "params/%s.hh"\n\n' % base for ptype in ptypes: if issubclass(ptype, Enum): code += '#include "enums/%s.hh"\n' % ptype.__name__ code += "\n\n" # now generate the actual param struct code += "struct %sParams" % cls if base: code += " : public %sParams" % base code += "\n{\n" if cls == SimObject: code += " virtual ~%sParams() {}\n" % cls if not hasattr(cls, 'abstract') or not cls.abstract: if 'type' in cls.__dict__: code += " %s create();\n" % cls.cxx_type decls = [p.cxx_decl() for p in params] decls.sort() code += "".join([" %s\n" % d for d in decls]) code += "};\n" # close #ifndef __PARAMS__* guard code += "\n#endif\n" return code def cxx_type_decl(cls): base = cls.get_base() code = '' if base: code += '#include "%s_type.h"\n' % base # now generate dummy code for inheritance code += "struct %s" % cls.cxx_class if base: code += " : public %s" % base.cxx_class code += "\n{};\n" return code def swig_decl(cls): base = cls.get_base() code = '%%module %s\n' % cls code += '%{\n' code += '#include "params/%s.hh"\n' % cls code += '%}\n\n' # The 'dict' attribute restricts us to the params declared in # the object itself, not including inherited params (which # will also be inherited from the base class's param struct # here). params = cls._params.local.values() ptypes = [p.ptype for p in params] # get a list of lists of predeclaration lines predecls = [] predecls.extend([ p.swig_predecls() for p in params ]) # flatten predecls = reduce(lambda x,y:x+y, predecls, []) # remove redundant lines predecls2 = [] for pd in predecls: if pd not in predecls2: predecls2.append(pd) predecls2.sort() code += "\n".join(predecls2) code += "\n\n"; if base: code += '%%import "params/%s.i"\n\n' % base for ptype in ptypes: if issubclass(ptype, Enum): code += '%%import "enums/%s.hh"\n' % ptype.__name__ code += "\n\n" code += '%%import "params/%s_type.hh"\n\n' % cls code += '%%include "params/%s.hh"\n\n' % cls return code # The SimObject class is the root of the special hierarchy. Most of # the code in this class deals with the configuration hierarchy itself # (parent/child node relationships). class SimObject(object): # Specify metaclass. Any class inheriting from SimObject will # get this metaclass. __metaclass__ = MetaSimObject type = 'SimObject' abstract = True name = Param.String("Object name") swig_objdecls = [ '%include "python/swig/sim_object.i"' ] # Initialize new instance. For objects with SimObject-valued # children, we need to recursively clone the classes represented # by those param values as well in a consistent "deep copy"-style # fashion. That is, we want to make sure that each instance is # cloned only once, and that if there are multiple references to # the same original object, we end up with the corresponding # cloned references all pointing to the same cloned instance. def __init__(self, **kwargs): ancestor = kwargs.get('_ancestor') memo_dict = kwargs.get('_memo') if memo_dict is None: # prepare to memoize any recursively instantiated objects memo_dict = {} elif ancestor: # memoize me now to avoid problems with recursive calls memo_dict[ancestor] = self if not ancestor: ancestor = self.__class__ ancestor._instantiated = True # initialize required attributes self._parent = None self._children = {} self._ccObject = None # pointer to C++ object self._ccParams = None self._instantiated = False # really "cloned" # Inherit parameter values from class using multidict so # individual value settings can be overridden. self._values = multidict(ancestor._values) # clone SimObject-valued parameters for key,val in ancestor._values.iteritems(): if isSimObject(val): setattr(self, key, val(_memo=memo_dict)) elif isSimObjectSequence(val) and len(val): setattr(self, key, [ v(_memo=memo_dict) for v in val ]) # clone port references. no need to use a multidict here # since we will be creating new references for all ports. self._port_refs = {} for key,val in ancestor._port_refs.iteritems(): self._port_refs[key] = val.clone(self, memo_dict) # apply attribute assignments from keyword args, if any for key,val in kwargs.iteritems(): setattr(self, key, val) # "Clone" the current instance by creating another instance of # this instance's class, but that inherits its parameter values # and port mappings from the current instance. If we're in a # "deep copy" recursive clone, check the _memo dict to see if # we've already cloned this instance. def __call__(self, **kwargs): memo_dict = kwargs.get('_memo') if memo_dict is None: # no memo_dict: must be top-level clone operation. # this is only allowed at the root of a hierarchy if self._parent: raise RuntimeError, "attempt to clone object %s " \ "not at the root of a tree (parent = %s)" \ % (self, self._parent) # create a new dict and use that. memo_dict = {} kwargs['_memo'] = memo_dict elif memo_dict.has_key(self): # clone already done & memoized return memo_dict[self] return self.__class__(_ancestor = self, **kwargs) def _get_port_ref(self, attr): # Return reference that can be assigned to another port # via __setattr__. There is only ever one reference # object per port, but we create them lazily here. ref = self._port_refs.get(attr) if not ref: ref = self._ports[attr].makeRef(self) self._port_refs[attr] = ref return ref def __getattr__(self, attr): if self._ports.has_key(attr): return self._get_port_ref(attr) if self._values.has_key(attr): return self._values[attr] raise AttributeError, "object '%s' has no attribute '%s'" \ % (self.__class__.__name__, attr) # Set attribute (called on foo.attr = value when foo is an # instance of class cls). def __setattr__(self, attr, value): # normal processing for private attributes if attr.startswith('_'): object.__setattr__(self, attr, value) return if self._ports.has_key(attr): # set up port connection self._get_port_ref(attr).connect(value) return if isSimObjectOrSequence(value) and self._instantiated: raise RuntimeError, \ "cannot set SimObject parameter '%s' after\n" \ " instance been cloned %s" % (attr, `self`) # must be SimObject param param = self._params.get(attr) if param: try: value = param.convert(value) except Exception, e: msg = "%s\nError setting param %s.%s to %s\n" % \ (e, self.__class__.__name__, attr, value) e.args = (msg, ) raise self._set_child(attr, value) return if isSimObjectOrSequence(value): self._set_child(attr, value) return # no valid assignment... raise exception raise AttributeError, "Class %s has no parameter %s" \ % (self.__class__.__name__, attr) # this hack allows tacking a '[0]' onto parameters that may or may # not be vectors, and always getting the first element (e.g. cpus) def __getitem__(self, key): if key == 0: return self raise TypeError, "Non-zero index '%s' to SimObject" % key # clear out children with given name, even if it's a vector def clear_child(self, name): if not self._children.has_key(name): return child = self._children[name] if isinstance(child, SimObjVector): for i in xrange(len(child)): del self._children["s%d" % (name, i)] del self._children[name] def add_child(self, name, value): self._children[name] = value def _maybe_set_parent(self, parent, name): if not self._parent: self._parent = parent self._name = name parent.add_child(name, self) def _set_child(self, attr, value): # if RHS is a SimObject, it's an implicit child assignment # clear out old child with this name, if any self.clear_child(attr) if isSimObject(value): value._maybe_set_parent(self, attr) elif isSimObjectSequence(value): value = SimObjVector(value) if len(value) == 1: value[0]._maybe_set_parent(self, attr) else: for i,v in enumerate(value): v._maybe_set_parent(self, "%s%d" % (attr, i)) self._values[attr] = value def path(self): if not self._parent: return 'root' ppath = self._parent.path() if ppath == 'root': return self._name return ppath + "." + self._name def __str__(self): return self.path() def ini_str(self): return self.path() def find_any(self, ptype): if isinstance(self, ptype): return self, True found_obj = None for child in self._children.itervalues(): if isinstance(child, ptype): if found_obj != None and child != found_obj: raise AttributeError, \ 'parent.any matched more than one: %s %s' % \ (found_obj.path, child.path) found_obj = child # search param space for pname,pdesc in self._params.iteritems(): if issubclass(pdesc.ptype, ptype): match_obj = self._values[pname] if found_obj != None and found_obj != match_obj: raise AttributeError, \ 'parent.any matched more than one: %s' % obj.path found_obj = match_obj return found_obj, found_obj != None def unproxy(self, base): return self def unproxy_all(self): for param in self._params.iterkeys(): value = self._values.get(param) if value != None and proxy.isproxy(value): try: value = value.unproxy(self) except: print "Error in unproxying param '%s' of %s" % \ (param, self.path()) raise setattr(self, param, value) # Unproxy ports in sorted order so that 'append' operations on # vector ports are done in a deterministic fashion. port_names = self._ports.keys() port_names.sort() for port_name in port_names: port = self._port_refs.get(port_name) if port != None: port.unproxy(self) # Unproxy children in sorted order for determinism also. child_names = self._children.keys() child_names.sort() for child in child_names: self._children[child].unproxy_all() def print_ini(self, ini_file): print >>ini_file, '[' + self.path() + ']' # .ini section header instanceDict[self.path()] = self if hasattr(self, 'type'): print >>ini_file, 'type=%s' % self.type child_names = self._children.keys() child_names.sort() if len(child_names): print >>ini_file, 'children=%s' % ' '.join(child_names) param_names = self._params.keys() param_names.sort() for param in param_names: value = self._values.get(param) if value != None: print >>ini_file, '%s=%s' % (param, self._values[param].ini_str()) port_names = self._ports.keys() port_names.sort() for port_name in port_names: port = self._port_refs.get(port_name, None) if port != None: print >>ini_file, '%s=%s' % (port_name, port.ini_str()) print >>ini_file # blank line between objects for child in child_names: self._children[child].print_ini(ini_file) def getCCParams(self): if self._ccParams: return self._ccParams cc_params_struct = getattr(m5.objects.params, '%sParams' % self.type) cc_params = cc_params_struct() cc_params.object = self cc_params.name = str(self) param_names = self._params.keys() param_names.sort() for param in param_names: value = self._values.get(param) if value is None: continue value = value.getValue() if isinstance(self._params[param], VectorParamDesc): assert isinstance(value, list) vec = getattr(cc_params, param) assert not len(vec) for v in value: vec.append(v) else: setattr(cc_params, param, value) port_names = self._ports.keys() port_names.sort() for port_name in port_names: port = self._port_refs.get(port_name, None) if port != None: setattr(cc_params, port_name, port) self._ccParams = cc_params return self._ccParams # Get C++ object corresponding to this object, calling C++ if # necessary to construct it. Does *not* recursively create # children. def getCCObject(self): if not self._ccObject: # Cycles in the configuration heirarchy are not supported. This # will catch the resulting recursion and stop. self._ccObject = -1 params = self.getCCParams() self._ccObject = params.create() elif self._ccObject == -1: raise RuntimeError, "%s: Cycle found in configuration heirarchy." \ % self.path() return self._ccObject # Call C++ to create C++ object corresponding to this object and # (recursively) all its children def createCCObject(self): self.getCCParams() self.getCCObject() # force creation for child in self._children.itervalues(): child.createCCObject() def getValue(self): return self.getCCObject() # Create C++ port connections corresponding to the connections in # _port_refs (& recursively for all children) def connectPorts(self): for portRef in self._port_refs.itervalues(): portRef.ccConnect() for child in self._children.itervalues(): child.connectPorts() def startDrain(self, drain_event, recursive): count = 0 if isinstance(self, SimObject): count += self._ccObject.drain(drain_event) if recursive: for child in self._children.itervalues(): count += child.startDrain(drain_event, True) return count def resume(self): if isinstance(self, SimObject): self._ccObject.resume() for child in self._children.itervalues(): child.resume() def getMemoryMode(self): if not isinstance(self, m5.objects.System): return None return self._ccObject.getMemoryMode() def changeTiming(self, mode): if isinstance(self, m5.objects.System): # i don't know if there's a better way to do this - calling # setMemoryMode directly from self._ccObject results in calling # SimObject::setMemoryMode, not the System::setMemoryMode self._ccObject.setMemoryMode(mode) for child in self._children.itervalues(): child.changeTiming(mode) def takeOverFrom(self, old_cpu): self._ccObject.takeOverFrom(old_cpu._ccObject) # generate output file for 'dot' to display as a pretty graph. # this code is currently broken. def outputDot(self, dot): label = "{%s|" % self.path if isSimObject(self.realtype): label += '%s|' % self.type if self.children: # instantiate children in same order they were added for # backward compatibility (else we can end up with cpu1 # before cpu0). for c in self.children: dot.add_edge(pydot.Edge(self.path,c.path, style="bold")) simobjs = [] for param in self.params: try: if param.value is None: raise AttributeError, 'Parameter with no value' value = param.value string = param.string(value) except Exception, e: msg = 'exception in %s:%s\n%s' % (self.name, param.name, e) e.args = (msg, ) raise if isSimObject(param.ptype) and string != "Null": simobjs.append(string) else: label += '%s = %s\\n' % (param.name, string) for so in simobjs: label += "|<%s> %s" % (so, so) dot.add_edge(pydot.Edge("%s:%s" % (self.path, so), so, tailport="w")) label += '}' dot.add_node(pydot.Node(self.path,shape="Mrecord",label=label)) # recursively dump out children for c in self.children: c.outputDot(dot) # Function to provide to C++ so it can look up instances based on paths def resolveSimObject(name): obj = instanceDict[name] return obj.getCCObject() # __all__ defines the list of symbols that get exported when # 'from config import *' is invoked. Try to keep this reasonably # short to avoid polluting other namespaces. __all__ = [ 'SimObject' ]