cad549d7aa
Fixed printing so the tokenizer in m5 doesn't get confused Expanded NullSimObject so it could be used as an element in a VectorParam --HG-- extra : convert_revision : 661b1916967d663ab7aee891f15f7ca190deeba6
1286 lines
45 KiB
Python
1286 lines
45 KiB
Python
# Copyright (c) 2004-2005 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from __future__ import generators
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import os, re, sys, types, inspect
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import m5
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panic = m5.panic
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from convert import *
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from multidict import multidict
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noDot = False
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try:
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import pydot
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except:
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noDot = True
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class Singleton(type):
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def __call__(cls, *args, **kwargs):
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if hasattr(cls, '_instance'):
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return cls._instance
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cls._instance = super(Singleton, cls).__call__(*args, **kwargs)
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return cls._instance
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#####################################################################
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#
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# M5 Python Configuration Utility
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#
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# The basic idea is to write simple Python programs that build Python
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# objects corresponding to M5 SimObjects for the desired simulation
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# configuration. For now, the Python emits a .ini file that can be
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# parsed by M5. In the future, some tighter integration between M5
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# and the Python interpreter may allow bypassing the .ini file.
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#
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# Each SimObject class in M5 is represented by a Python class with the
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# same name. The Python inheritance tree mirrors the M5 C++ tree
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# (e.g., SimpleCPU derives from BaseCPU in both cases, and all
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# SimObjects inherit from a single SimObject base class). To specify
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# an instance of an M5 SimObject in a configuration, the user simply
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# instantiates the corresponding Python object. The parameters for
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# that SimObject are given by assigning to attributes of the Python
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# object, either using keyword assignment in the constructor or in
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# separate assignment statements. For example:
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#
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# cache = BaseCache(size='64KB')
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# cache.hit_latency = 3
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# cache.assoc = 8
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#
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# The magic lies in the mapping of the Python attributes for SimObject
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# classes to the actual SimObject parameter specifications. This
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# allows parameter validity checking in the Python code. Continuing
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# the example above, the statements "cache.blurfl=3" or
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# "cache.assoc='hello'" would both result in runtime errors in Python,
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# since the BaseCache object has no 'blurfl' parameter and the 'assoc'
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# parameter requires an integer, respectively. This magic is done
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# primarily by overriding the special __setattr__ method that controls
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# assignment to object attributes.
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#
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# Once a set of Python objects have been instantiated in a hierarchy,
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# calling 'instantiate(obj)' (where obj is the root of the hierarchy)
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# will generate a .ini file. See simple-4cpu.py for an example
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# (corresponding to m5-test/simple-4cpu.ini).
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#
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#####################################################################
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#####################################################################
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#
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# ConfigNode/SimObject classes
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#
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# The Python class hierarchy rooted by ConfigNode (which is the base
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# class of SimObject, which in turn is the base class of all other M5
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# SimObject classes) has special attribute behavior. In general, an
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# object in this hierarchy has three categories of attribute-like
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# things:
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#
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# 1. Regular Python methods and variables. These must start with an
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# underscore to be treated normally.
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#
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# 2. SimObject parameters. These values are stored as normal Python
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# attributes, but all assignments to these attributes are checked
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# against the pre-defined set of parameters stored in the class's
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# _params dictionary. Assignments to attributes that do not
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# correspond to predefined parameters, or that are not of the correct
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# type, incur runtime errors.
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#
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# 3. Hierarchy children. The child nodes of a ConfigNode are stored
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# in the node's _children dictionary, but can be accessed using the
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# Python attribute dot-notation (just as they are printed out by the
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# simulator). Children cannot be created using attribute assigment;
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# they must be added by specifying the parent node in the child's
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# constructor or using the '+=' operator.
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# The SimObject parameters are the most complex, for a few reasons.
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# First, both parameter descriptions and parameter values are
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# inherited. Thus parameter description lookup must go up the
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# inheritance chain like normal attribute lookup, but this behavior
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# must be explicitly coded since the lookup occurs in each class's
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# _params attribute. Second, because parameter values can be set
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# on SimObject classes (to implement default values), the parameter
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# checking behavior must be enforced on class attribute assignments as
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# well as instance attribute assignments. Finally, because we allow
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# class specialization via inheritance (e.g., see the L1Cache class in
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# the simple-4cpu.py example), we must do parameter checking even on
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# class instantiation. To provide all these features, we use a
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# metaclass to define most of the SimObject parameter behavior for
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# this class hierarchy.
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#
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#####################################################################
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def isSimObject(value):
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return isinstance(value, SimObject)
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def isSimObjSequence(value):
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if not isinstance(value, (list, tuple)):
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return False
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for val in value:
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if not isNullPointer(val) and not isSimObject(val):
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return False
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return True
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def isNullPointer(value):
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return isinstance(value, NullSimObject)
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# The metaclass for ConfigNode (and thus for everything that derives
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# from ConfigNode, including SimObject). This class controls how new
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# classes that derive from ConfigNode are instantiated, and provides
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# inherited class behavior (just like a class controls how instances
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# of that class are instantiated, and provides inherited instance
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# behavior).
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class MetaSimObject(type):
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# Attributes that can be set only at initialization time
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init_keywords = { 'abstract' : types.BooleanType,
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'type' : types.StringType }
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# Attributes that can be set any time
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keywords = { 'check' : types.FunctionType,
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'children' : types.ListType }
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# __new__ is called before __init__, and is where the statements
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# in the body of the class definition get loaded into the class's
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# __dict__. We intercept this to filter out parameter assignments
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# and only allow "private" attributes to be passed to the base
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# __new__ (starting with underscore).
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def __new__(mcls, name, bases, dict):
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# Copy "private" attributes (including special methods such as __new__)
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# to the official dict. Everything else goes in _init_dict to be
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# filtered in __init__.
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cls_dict = {}
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for key,val in dict.items():
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if key.startswith('_'):
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cls_dict[key] = val
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del dict[key]
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cls_dict['_init_dict'] = dict
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return super(MetaSimObject, mcls).__new__(mcls, name, bases, cls_dict)
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# initialization
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def __init__(cls, name, bases, dict):
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super(MetaSimObject, cls).__init__(name, bases, dict)
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# initialize required attributes
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cls._params = multidict()
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cls._values = multidict()
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cls._anon_subclass_counter = 0
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# We don't support multiple inheritance. If you want to, you
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# must fix multidict to deal with it properly.
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if len(bases) > 1:
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raise TypeError, "SimObjects do not support multiple inheritance"
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base = bases[0]
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if isinstance(base, MetaSimObject):
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cls._params.parent = base._params
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cls._values.parent = base._values
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# If your parent has a value in it that's a config node, clone
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# it. Do this now so if we update any of the values'
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# attributes we are updating the clone and not the original.
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for key,val in base._values.iteritems():
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# don't clone if (1) we're about to overwrite it with
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# a local setting or (2) we've already cloned a copy
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# from an earlier (more derived) base
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if cls._init_dict.has_key(key) or cls._values.has_key(key):
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continue
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if isSimObject(val):
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cls._values[key] = val()
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elif isSimObjSequence(val) and len(val):
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cls._values[key] = [ v() for v in val ]
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# now process remaining _init_dict items
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for key,val in cls._init_dict.items():
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if isinstance(val, (types.FunctionType, types.TypeType)):
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type.__setattr__(cls, key, val)
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# param descriptions
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elif isinstance(val, ParamDesc):
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cls._new_param(key, val)
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# init-time-only keywords
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elif cls.init_keywords.has_key(key):
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cls._set_keyword(key, val, cls.init_keywords[key])
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# default: use normal path (ends up in __setattr__)
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else:
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setattr(cls, key, val)
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def _set_keyword(cls, keyword, val, kwtype):
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if not isinstance(val, kwtype):
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raise TypeError, 'keyword %s has bad type %s (expecting %s)' % \
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(keyword, type(val), kwtype)
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if isinstance(val, types.FunctionType):
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val = classmethod(val)
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type.__setattr__(cls, keyword, val)
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def _new_param(cls, name, value):
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cls._params[name] = value
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if hasattr(value, 'default'):
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setattr(cls, name, value.default)
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# Set attribute (called on foo.attr = value when foo is an
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# instance of class cls).
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def __setattr__(cls, attr, value):
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# normal processing for private attributes
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if attr.startswith('_'):
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type.__setattr__(cls, attr, value)
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return
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if cls.keywords.has_key(attr):
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cls._set_keyword(attr, value, cls.keywords[attr])
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return
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# must be SimObject param
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param = cls._params.get(attr, None)
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if param:
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# It's ok: set attribute by delegating to 'object' class.
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try:
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cls._values[attr] = param.convert(value)
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except Exception, e:
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msg = "%s\nError setting param %s.%s to %s\n" % \
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(e, cls.__name__, attr, value)
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e.args = (msg, )
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raise
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# I would love to get rid of this
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elif isSimObject(value) or isSimObjSequence(value):
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cls._values[attr] = value
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else:
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raise AttributeError, \
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"Class %s has no parameter %s" % (cls.__name__, attr)
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def __getattr__(cls, attr):
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if cls._values.has_key(attr):
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return cls._values[attr]
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raise AttributeError, \
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"object '%s' has no attribute '%s'" % (cls.__name__, attr)
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# The ConfigNode class is the root of the special hierarchy. Most of
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# the code in this class deals with the configuration hierarchy itself
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# (parent/child node relationships).
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class SimObject(object):
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# Specify metaclass. Any class inheriting from SimObject will
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# get this metaclass.
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__metaclass__ = MetaSimObject
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def __init__(self, _value_parent = None, **kwargs):
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self._children = {}
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if _value_parent and type(_value_parent) != type(self):
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# this was called as a type conversion rather than a clone
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raise TypeError, "Cannot convert %s to %s" % \
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(_value_parent.__class__.__name__, self.__class__.__name__)
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if not _value_parent:
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_value_parent = self.__class__
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# clone values
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self._values = multidict(_value_parent._values)
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for key,val in _value_parent._values.iteritems():
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if isSimObject(val):
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setattr(self, key, val())
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elif isSimObjSequence(val) and len(val):
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setattr(self, key, [ v() for v in val ])
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# apply attribute assignments from keyword args, if any
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for key,val in kwargs.iteritems():
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setattr(self, key, val)
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def __call__(self, **kwargs):
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return self.__class__(_value_parent = self, **kwargs)
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def __getattr__(self, attr):
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if self._values.has_key(attr):
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return self._values[attr]
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raise AttributeError, "object '%s' has no attribute '%s'" \
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% (self.__class__.__name__, attr)
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# Set attribute (called on foo.attr = value when foo is an
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# instance of class cls).
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def __setattr__(self, attr, value):
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# normal processing for private attributes
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if attr.startswith('_'):
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object.__setattr__(self, attr, value)
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return
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# must be SimObject param
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param = self._params.get(attr, None)
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if param:
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# It's ok: set attribute by delegating to 'object' class.
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try:
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value = param.convert(value)
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except Exception, e:
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msg = "%s\nError setting param %s.%s to %s\n" % \
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(e, self.__class__.__name__, attr, value)
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e.args = (msg, )
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raise
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# I would love to get rid of this
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elif isSimObject(value) or isSimObjSequence(value):
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pass
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else:
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raise AttributeError, "Class %s has no parameter %s" \
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% (self.__class__.__name__, attr)
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# clear out old child with this name, if any
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self.clear_child(attr)
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if isSimObject(value):
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value.set_path(self, attr)
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elif isSimObjSequence(value):
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value = SimObjVector(value)
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[v.set_path(self, "%s%d" % (attr, i)) for i,v in enumerate(value)]
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self._values[attr] = value
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# this hack allows tacking a '[0]' onto parameters that may or may
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# not be vectors, and always getting the first element (e.g. cpus)
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def __getitem__(self, key):
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if key == 0:
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return self
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raise TypeError, "Non-zero index '%s' to SimObject" % key
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# clear out children with given name, even if it's a vector
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def clear_child(self, name):
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if not self._children.has_key(name):
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return
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child = self._children[name]
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if isinstance(child, SimObjVector):
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for i in xrange(len(child)):
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del self._children["s%d" % (name, i)]
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del self._children[name]
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def add_child(self, name, value):
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self._children[name] = value
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def set_path(self, parent, name):
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if not hasattr(self, '_parent'):
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self._parent = parent
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self._name = name
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parent.add_child(name, self)
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def path(self):
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if not hasattr(self, '_parent'):
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return 'root'
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ppath = self._parent.path()
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if ppath == 'root':
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return self._name
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return ppath + "." + self._name
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def __str__(self):
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return self.path()
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def ini_str(self):
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return self.path()
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def find_any(self, ptype):
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if isinstance(self, ptype):
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return self, True
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found_obj = None
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for child in self._children.itervalues():
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if isinstance(child, ptype):
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if found_obj != None and child != found_obj:
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raise AttributeError, \
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'parent.any matched more than one: %s %s' % \
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(obj.path, child.path)
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found_obj = child
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# search param space
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for pname,pdesc in self._params.iteritems():
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if issubclass(pdesc.ptype, ptype):
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match_obj = self._values[pname]
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if found_obj != None and found_obj != match_obj:
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raise AttributeError, \
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'parent.any matched more than one: %s' % obj.path
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found_obj = match_obj
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return found_obj, found_obj != None
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def print_ini(self):
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print '[' + self.path() + ']' # .ini section header
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if hasattr(self, 'type') and not isinstance(self, ParamContext):
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print 'type=%s' % self.type
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child_names = self._children.keys()
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child_names.sort()
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np_child_names = [c for c in child_names \
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if not isinstance(self._children[c], ParamContext)]
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if len(np_child_names):
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print 'children=%s' % ' '.join(np_child_names)
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param_names = self._params.keys()
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param_names.sort()
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for param in param_names:
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value = self._values.get(param, None)
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if value != None:
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if isproxy(value):
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try:
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value = value.unproxy(self)
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except:
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print >> sys.stderr, \
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"Error in unproxying param '%s' of %s" % \
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(param, self.path())
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raise
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setattr(self, param, value)
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print '%s=%s' % (param, self._values[param].ini_str())
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print # blank line between objects
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for child in child_names:
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self._children[child].print_ini()
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# generate output file for 'dot' to display as a pretty graph.
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# this code is currently broken.
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def outputDot(self, dot):
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label = "{%s|" % self.path
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if isSimObject(self.realtype):
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label += '%s|' % self.type
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if self.children:
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# instantiate children in same order they were added for
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# backward compatibility (else we can end up with cpu1
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# before cpu0).
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for c in self.children:
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dot.add_edge(pydot.Edge(self.path,c.path, style="bold"))
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simobjs = []
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for param in self.params:
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try:
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if param.value is None:
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raise AttributeError, 'Parameter with no value'
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value = param.value
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string = param.string(value)
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except Exception, e:
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msg = 'exception in %s:%s\n%s' % (self.name, param.name, e)
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e.args = (msg, )
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raise
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if isSimObject(param.ptype) and string != "Null":
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simobjs.append(string)
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else:
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label += '%s = %s\\n' % (param.name, string)
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|
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for so in simobjs:
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label += "|<%s> %s" % (so, so)
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dot.add_edge(pydot.Edge("%s:%s" % (self.path, so), so,
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tailport="w"))
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label += '}'
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dot.add_node(pydot.Node(self.path,shape="Mrecord",label=label))
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# recursively dump out children
|
|
for c in self.children:
|
|
c.outputDot(dot)
|
|
|
|
class ParamContext(SimObject):
|
|
pass
|
|
|
|
#####################################################################
|
|
#
|
|
# Proxy object support.
|
|
#
|
|
#####################################################################
|
|
|
|
class BaseProxy(object):
|
|
def __init__(self, search_self, search_up):
|
|
self._search_self = search_self
|
|
self._search_up = search_up
|
|
self._multiplier = None
|
|
|
|
def __setattr__(self, attr, value):
|
|
if not attr.startswith('_'):
|
|
raise AttributeError, 'cannot set attribute on proxy object'
|
|
super(BaseProxy, self).__setattr__(attr, value)
|
|
|
|
# support multiplying proxies by constants
|
|
def __mul__(self, other):
|
|
if not isinstance(other, (int, float)):
|
|
raise TypeError, "Proxy multiplier must be integer"
|
|
if self._multiplier == None:
|
|
self._multiplier = other
|
|
else:
|
|
# support chained multipliers
|
|
self._multiplier *= other
|
|
return self
|
|
|
|
__rmul__ = __mul__
|
|
|
|
def _mulcheck(self, result):
|
|
if self._multiplier == None:
|
|
return result
|
|
return result * self._multiplier
|
|
|
|
def unproxy(self, base):
|
|
obj = base
|
|
done = False
|
|
|
|
if self._search_self:
|
|
result, done = self.find(obj)
|
|
|
|
if self._search_up:
|
|
while not done:
|
|
try: obj = obj._parent
|
|
except: break
|
|
|
|
result, done = self.find(obj)
|
|
|
|
if not done:
|
|
raise AttributeError, "Can't resolve proxy '%s' from '%s'" % \
|
|
(self.path(), base.path())
|
|
|
|
if isinstance(result, BaseProxy):
|
|
if result == self:
|
|
raise RuntimeError, "Cycle in unproxy"
|
|
result = result.unproxy(obj)
|
|
|
|
return self._mulcheck(result)
|
|
|
|
def getindex(obj, index):
|
|
if index == None:
|
|
return obj
|
|
try:
|
|
obj = obj[index]
|
|
except TypeError:
|
|
if index != 0:
|
|
raise
|
|
# if index is 0 and item is not subscriptable, just
|
|
# use item itself (so cpu[0] works on uniprocessors)
|
|
return obj
|
|
getindex = staticmethod(getindex)
|
|
|
|
def set_param_desc(self, pdesc):
|
|
self._pdesc = pdesc
|
|
|
|
class AttrProxy(BaseProxy):
|
|
def __init__(self, search_self, search_up, attr):
|
|
super(AttrProxy, self).__init__(search_self, search_up)
|
|
self._attr = attr
|
|
self._modifiers = []
|
|
|
|
def __getattr__(self, attr):
|
|
# python uses __bases__ internally for inheritance
|
|
if attr.startswith('_'):
|
|
return super(AttrProxy, self).__getattr__(self, attr)
|
|
if hasattr(self, '_pdesc'):
|
|
raise AttributeError, "Attribute reference on bound proxy"
|
|
self._modifiers.append(attr)
|
|
return self
|
|
|
|
# support indexing on proxies (e.g., Self.cpu[0])
|
|
def __getitem__(self, key):
|
|
if not isinstance(key, int):
|
|
raise TypeError, "Proxy object requires integer index"
|
|
self._modifiers.append(key)
|
|
return self
|
|
|
|
def find(self, obj):
|
|
try:
|
|
val = getattr(obj, self._attr)
|
|
except:
|
|
return None, False
|
|
while isproxy(val):
|
|
val = val.unproxy(obj)
|
|
for m in self._modifiers:
|
|
if isinstance(m, str):
|
|
val = getattr(val, m)
|
|
elif isinstance(m, int):
|
|
val = val[m]
|
|
else:
|
|
assert("Item must be string or integer")
|
|
while isproxy(val):
|
|
val = val.unproxy(obj)
|
|
return val, True
|
|
|
|
def path(self):
|
|
p = self._attr
|
|
for m in self._modifiers:
|
|
if isinstance(m, str):
|
|
p += '.%s' % m
|
|
elif isinstance(m, int):
|
|
p += '[%d]' % m
|
|
else:
|
|
assert("Item must be string or integer")
|
|
return p
|
|
|
|
class AnyProxy(BaseProxy):
|
|
def find(self, obj):
|
|
return obj.find_any(self._pdesc.ptype)
|
|
|
|
def path(self):
|
|
return 'any'
|
|
|
|
def isproxy(obj):
|
|
if isinstance(obj, BaseProxy):
|
|
return True
|
|
elif isinstance(obj, (list, tuple)):
|
|
for v in obj:
|
|
if isproxy(v):
|
|
return True
|
|
return False
|
|
|
|
class ProxyFactory(object):
|
|
def __init__(self, search_self, search_up):
|
|
self.search_self = search_self
|
|
self.search_up = search_up
|
|
|
|
def __getattr__(self, attr):
|
|
if attr == 'any':
|
|
return AnyProxy(self.search_self, self.search_up)
|
|
else:
|
|
return AttrProxy(self.search_self, self.search_up, attr)
|
|
|
|
# global objects for handling proxies
|
|
Parent = ProxyFactory(search_self = False, search_up = True)
|
|
Self = ProxyFactory(search_self = True, search_up = False)
|
|
|
|
#####################################################################
|
|
#
|
|
# Parameter description classes
|
|
#
|
|
# The _params dictionary in each class maps parameter names to
|
|
# either a Param or a VectorParam object. These objects contain the
|
|
# parameter description string, the parameter type, and the default
|
|
# value (loaded from the PARAM section of the .odesc files). The
|
|
# _convert() method on these objects is used to force whatever value
|
|
# is assigned to the parameter to the appropriate type.
|
|
#
|
|
# Note that the default values are loaded into the class's attribute
|
|
# space when the parameter dictionary is initialized (in
|
|
# MetaConfigNode._setparams()); after that point they aren't used.
|
|
#
|
|
#####################################################################
|
|
|
|
# Dummy base class to identify types that are legitimate for SimObject
|
|
# parameters.
|
|
class ParamValue(object):
|
|
|
|
# default for printing to .ini file is regular string conversion.
|
|
# will be overridden in some cases
|
|
def ini_str(self):
|
|
return str(self)
|
|
|
|
# allows us to blithely call unproxy() on things without checking
|
|
# if they're really proxies or not
|
|
def unproxy(self, base):
|
|
return self
|
|
|
|
# Regular parameter description.
|
|
class ParamDesc(object):
|
|
def __init__(self, ptype_str, ptype, *args, **kwargs):
|
|
self.ptype_str = ptype_str
|
|
# remember ptype only if it is provided
|
|
if ptype != None:
|
|
self.ptype = ptype
|
|
|
|
if args:
|
|
if len(args) == 1:
|
|
self.desc = args[0]
|
|
elif len(args) == 2:
|
|
self.default = args[0]
|
|
self.desc = args[1]
|
|
else:
|
|
raise TypeError, 'too many arguments'
|
|
|
|
if kwargs.has_key('desc'):
|
|
assert(not hasattr(self, 'desc'))
|
|
self.desc = kwargs['desc']
|
|
del kwargs['desc']
|
|
|
|
if kwargs.has_key('default'):
|
|
assert(not hasattr(self, 'default'))
|
|
self.default = kwargs['default']
|
|
del kwargs['default']
|
|
|
|
if kwargs:
|
|
raise TypeError, 'extra unknown kwargs %s' % kwargs
|
|
|
|
if not hasattr(self, 'desc'):
|
|
raise TypeError, 'desc attribute missing'
|
|
|
|
def __getattr__(self, attr):
|
|
if attr == 'ptype':
|
|
try:
|
|
ptype = eval(self.ptype_str, m5.__dict__)
|
|
if not isinstance(ptype, type):
|
|
panic("Param qualifier is not a type: %s" % self.ptype)
|
|
self.ptype = ptype
|
|
return ptype
|
|
except NameError:
|
|
pass
|
|
raise AttributeError, "'%s' object has no attribute '%s'" % \
|
|
(type(self).__name__, attr)
|
|
|
|
def convert(self, value):
|
|
if isinstance(value, BaseProxy):
|
|
value.set_param_desc(self)
|
|
return value
|
|
if not hasattr(self, 'ptype') and isNullPointer(value):
|
|
# deferred evaluation of SimObject; continue to defer if
|
|
# we're just assigning a null pointer
|
|
return value
|
|
if isinstance(value, self.ptype):
|
|
return value
|
|
if isNullPointer(value) and issubclass(self.ptype, SimObject):
|
|
return value
|
|
return self.ptype(value)
|
|
|
|
# Vector-valued parameter description. Just like ParamDesc, except
|
|
# that the value is a vector (list) of the specified type instead of a
|
|
# single value.
|
|
|
|
class VectorParamValue(list):
|
|
def ini_str(self):
|
|
return ' '.join([str(v) for v in self])
|
|
|
|
def unproxy(self, base):
|
|
return [v.unproxy(base) for v in self]
|
|
|
|
class SimObjVector(VectorParamValue):
|
|
def print_ini(self):
|
|
for v in self:
|
|
v.print_ini()
|
|
|
|
class VectorParamDesc(ParamDesc):
|
|
# Convert assigned value to appropriate type. If the RHS is not a
|
|
# list or tuple, it generates a single-element list.
|
|
def convert(self, value):
|
|
if isinstance(value, (list, tuple)):
|
|
# list: coerce each element into new list
|
|
tmp_list = [ ParamDesc.convert(self, v) for v in value ]
|
|
if isSimObjSequence(tmp_list):
|
|
return SimObjVector(tmp_list)
|
|
else:
|
|
return VectorParamValue(tmp_list)
|
|
else:
|
|
# singleton: leave it be (could coerce to a single-element
|
|
# list here, but for some historical reason we don't...
|
|
return ParamDesc.convert(self, value)
|
|
|
|
|
|
class ParamFactory(object):
|
|
def __init__(self, param_desc_class, ptype_str = None):
|
|
self.param_desc_class = param_desc_class
|
|
self.ptype_str = ptype_str
|
|
|
|
def __getattr__(self, attr):
|
|
if self.ptype_str:
|
|
attr = self.ptype_str + '.' + attr
|
|
return ParamFactory(self.param_desc_class, attr)
|
|
|
|
# E.g., Param.Int(5, "number of widgets")
|
|
def __call__(self, *args, **kwargs):
|
|
caller_frame = inspect.stack()[1][0]
|
|
ptype = None
|
|
try:
|
|
ptype = eval(self.ptype_str,
|
|
caller_frame.f_globals, caller_frame.f_locals)
|
|
if not isinstance(ptype, type):
|
|
raise TypeError, \
|
|
"Param qualifier is not a type: %s" % ptype
|
|
except NameError:
|
|
# if name isn't defined yet, assume it's a SimObject, and
|
|
# try to resolve it later
|
|
pass
|
|
return self.param_desc_class(self.ptype_str, ptype, *args, **kwargs)
|
|
|
|
Param = ParamFactory(ParamDesc)
|
|
VectorParam = ParamFactory(VectorParamDesc)
|
|
|
|
#####################################################################
|
|
#
|
|
# Parameter Types
|
|
#
|
|
# Though native Python types could be used to specify parameter types
|
|
# (the 'ptype' field of the Param and VectorParam classes), it's more
|
|
# flexible to define our own set of types. This gives us more control
|
|
# over how Python expressions are converted to values (via the
|
|
# __init__() constructor) and how these values are printed out (via
|
|
# the __str__() conversion method). Eventually we'll need these types
|
|
# to correspond to distinct C++ types as well.
|
|
#
|
|
#####################################################################
|
|
|
|
class Range(ParamValue):
|
|
type = int # default; can be overridden in subclasses
|
|
def __init__(self, *args, **kwargs):
|
|
|
|
def handle_kwargs(self, kwargs):
|
|
if 'end' in kwargs:
|
|
self.second = self.type(kwargs.pop('end'))
|
|
elif 'size' in kwargs:
|
|
self.second = self.first + self.type(kwargs.pop('size')) - 1
|
|
else:
|
|
raise TypeError, "Either end or size must be specified"
|
|
|
|
if len(args) == 0:
|
|
self.first = self.type(kwargs.pop('start'))
|
|
handle_kwargs(self, kwargs)
|
|
|
|
elif len(args) == 1:
|
|
if kwargs:
|
|
self.first = self.type(args[0])
|
|
handle_kwargs(self, kwargs)
|
|
elif isinstance(args[0], Range):
|
|
self.first = self.type(args[0].first)
|
|
self.second = self.type(args[0].second)
|
|
else:
|
|
self.first = self.type(0)
|
|
self.second = self.type(args[0]) - 1
|
|
|
|
elif len(args) == 2:
|
|
self.first = self.type(args[0])
|
|
self.second = self.type(args[1])
|
|
else:
|
|
raise TypeError, "Too many arguments specified"
|
|
|
|
if kwargs:
|
|
raise TypeError, "too many keywords: %s" % kwargs.keys()
|
|
|
|
def __str__(self):
|
|
return '%s:%s' % (self.first, self.second)
|
|
|
|
# Metaclass for bounds-checked integer parameters. See CheckedInt.
|
|
class CheckedIntType(type):
|
|
def __init__(cls, name, bases, dict):
|
|
super(CheckedIntType, cls).__init__(name, bases, dict)
|
|
|
|
# CheckedInt is an abstract base class, so we actually don't
|
|
# want to do any processing on it... the rest of this code is
|
|
# just for classes that derive from CheckedInt.
|
|
if name == 'CheckedInt':
|
|
return
|
|
|
|
if not (hasattr(cls, 'min') and hasattr(cls, 'max')):
|
|
if not (hasattr(cls, 'size') and hasattr(cls, 'unsigned')):
|
|
panic("CheckedInt subclass %s must define either\n" \
|
|
" 'min' and 'max' or 'size' and 'unsigned'\n" \
|
|
% name);
|
|
if cls.unsigned:
|
|
cls.min = 0
|
|
cls.max = 2 ** cls.size - 1
|
|
else:
|
|
cls.min = -(2 ** (cls.size - 1))
|
|
cls.max = (2 ** (cls.size - 1)) - 1
|
|
|
|
# Abstract superclass for bounds-checked integer parameters. This
|
|
# class is subclassed to generate parameter classes with specific
|
|
# bounds. Initialization of the min and max bounds is done in the
|
|
# metaclass CheckedIntType.__init__.
|
|
class CheckedInt(long,ParamValue):
|
|
__metaclass__ = CheckedIntType
|
|
|
|
def __new__(cls, value):
|
|
if isinstance(value, str):
|
|
value = toInteger(value)
|
|
|
|
self = long.__new__(cls, value)
|
|
|
|
if not cls.min <= self <= cls.max:
|
|
raise TypeError, 'Integer param out of bounds %d < %d < %d' % \
|
|
(cls.min, self, cls.max)
|
|
return self
|
|
|
|
class Int(CheckedInt): size = 32; unsigned = False
|
|
class Unsigned(CheckedInt): size = 32; unsigned = True
|
|
|
|
class Int8(CheckedInt): size = 8; unsigned = False
|
|
class UInt8(CheckedInt): size = 8; unsigned = True
|
|
class Int16(CheckedInt): size = 16; unsigned = False
|
|
class UInt16(CheckedInt): size = 16; unsigned = True
|
|
class Int32(CheckedInt): size = 32; unsigned = False
|
|
class UInt32(CheckedInt): size = 32; unsigned = True
|
|
class Int64(CheckedInt): size = 64; unsigned = False
|
|
class UInt64(CheckedInt): size = 64; unsigned = True
|
|
|
|
class Counter(CheckedInt): size = 64; unsigned = True
|
|
class Tick(CheckedInt): size = 64; unsigned = True
|
|
class TcpPort(CheckedInt): size = 16; unsigned = True
|
|
class UdpPort(CheckedInt): size = 16; unsigned = True
|
|
|
|
class Percent(CheckedInt): min = 0; max = 100
|
|
|
|
class Float(ParamValue, float):
|
|
pass
|
|
|
|
class MemorySize(CheckedInt):
|
|
size = 64
|
|
unsigned = True
|
|
def __new__(cls, value):
|
|
return super(MemorySize, cls).__new__(cls, toMemorySize(value))
|
|
|
|
|
|
class Addr(CheckedInt):
|
|
size = 64
|
|
unsigned = True
|
|
def __new__(cls, value):
|
|
try:
|
|
value = long(toMemorySize(value))
|
|
except TypeError:
|
|
value = long(value)
|
|
return super(Addr, cls).__new__(cls, value)
|
|
|
|
class AddrRange(Range):
|
|
type = Addr
|
|
|
|
# String-valued parameter. Just mixin the ParamValue class
|
|
# with the built-in str class.
|
|
class String(ParamValue,str):
|
|
pass
|
|
|
|
# Boolean parameter type. Python doesn't let you subclass bool, since
|
|
# it doesn't want to let you create multiple instances of True and
|
|
# False. Thus this is a little more complicated than String.
|
|
class Bool(ParamValue):
|
|
def __init__(self, value):
|
|
try:
|
|
self.value = toBool(value)
|
|
except TypeError:
|
|
self.value = bool(value)
|
|
|
|
def __str__(self):
|
|
return str(self.value)
|
|
|
|
def ini_str(self):
|
|
if self.value:
|
|
return 'true'
|
|
return 'false'
|
|
|
|
def IncEthernetAddr(addr, val = 1):
|
|
bytes = map(lambda x: int(x, 16), addr.split(':'))
|
|
bytes[5] += val
|
|
for i in (5, 4, 3, 2, 1):
|
|
val,rem = divmod(bytes[i], 256)
|
|
bytes[i] = rem
|
|
if val == 0:
|
|
break
|
|
bytes[i - 1] += val
|
|
assert(bytes[0] <= 255)
|
|
return ':'.join(map(lambda x: '%02x' % x, bytes))
|
|
|
|
class NextEthernetAddr(object):
|
|
__metaclass__ = Singleton
|
|
addr = "00:90:00:00:00:01"
|
|
|
|
def __init__(self, inc = 1):
|
|
self.value = self.addr
|
|
self.addr = IncEthernetAddr(self.addr, inc)
|
|
|
|
class EthernetAddr(ParamValue):
|
|
def __init__(self, value):
|
|
if value == NextEthernetAddr:
|
|
self.value = value
|
|
return
|
|
|
|
if not isinstance(value, str):
|
|
raise TypeError, "expected an ethernet address and didn't get one"
|
|
|
|
bytes = value.split(':')
|
|
if len(bytes) != 6:
|
|
raise TypeError, 'invalid ethernet address %s' % value
|
|
|
|
for byte in bytes:
|
|
if not 0 <= int(byte) <= 256:
|
|
raise TypeError, 'invalid ethernet address %s' % value
|
|
|
|
self.value = value
|
|
|
|
def __str__(self):
|
|
if self.value == NextEthernetAddr:
|
|
self.value = self.value().value
|
|
return self.value
|
|
|
|
# Special class for NULL pointers. Note the special check in
|
|
# make_param_value() above that lets these be assigned where a
|
|
# SimObject is required.
|
|
# only one copy of a particular node
|
|
class NullSimObject(object):
|
|
__metaclass__ = Singleton
|
|
|
|
def __call__(cls):
|
|
return cls
|
|
|
|
def _instantiate(self, parent = None, path = ''):
|
|
pass
|
|
|
|
def ini_str(self):
|
|
return 'Null'
|
|
|
|
def unproxy(self,base):
|
|
return self
|
|
|
|
def set_path(self, parent, name):
|
|
pass
|
|
def __str__(self):
|
|
return 'Null'
|
|
|
|
# The only instance you'll ever need...
|
|
Null = NULL = NullSimObject()
|
|
|
|
# Enumerated types are a little more complex. The user specifies the
|
|
# type as Enum(foo) where foo is either a list or dictionary of
|
|
# alternatives (typically strings, but not necessarily so). (In the
|
|
# long run, the integer value of the parameter will be the list index
|
|
# or the corresponding dictionary value. For now, since we only check
|
|
# that the alternative is valid and then spit it into a .ini file,
|
|
# there's not much point in using the dictionary.)
|
|
|
|
# What Enum() must do is generate a new type encapsulating the
|
|
# provided list/dictionary so that specific values of the parameter
|
|
# can be instances of that type. We define two hidden internal
|
|
# classes (_ListEnum and _DictEnum) to serve as base classes, then
|
|
# derive the new type from the appropriate base class on the fly.
|
|
|
|
|
|
# Metaclass for Enum types
|
|
class MetaEnum(type):
|
|
def __init__(cls, name, bases, init_dict):
|
|
if init_dict.has_key('map'):
|
|
if not isinstance(cls.map, dict):
|
|
raise TypeError, "Enum-derived class attribute 'map' " \
|
|
"must be of type dict"
|
|
# build list of value strings from map
|
|
cls.vals = cls.map.keys()
|
|
cls.vals.sort()
|
|
elif init_dict.has_key('vals'):
|
|
if not isinstance(cls.vals, list):
|
|
raise TypeError, "Enum-derived class attribute 'vals' " \
|
|
"must be of type list"
|
|
# build string->value map from vals sequence
|
|
cls.map = {}
|
|
for idx,val in enumerate(cls.vals):
|
|
cls.map[val] = idx
|
|
else:
|
|
raise TypeError, "Enum-derived class must define "\
|
|
"attribute 'map' or 'vals'"
|
|
|
|
super(MetaEnum, cls).__init__(name, bases, init_dict)
|
|
|
|
def cpp_declare(cls):
|
|
s = 'enum %s {\n ' % cls.__name__
|
|
s += ',\n '.join(['%s = %d' % (v,cls.map[v]) for v in cls.vals])
|
|
s += '\n};\n'
|
|
return s
|
|
|
|
# Base class for enum types.
|
|
class Enum(ParamValue):
|
|
__metaclass__ = MetaEnum
|
|
vals = []
|
|
|
|
def __init__(self, value):
|
|
if value not in self.map:
|
|
raise TypeError, "Enum param got bad value '%s' (not in %s)" \
|
|
% (value, self.vals)
|
|
self.value = value
|
|
|
|
def __str__(self):
|
|
return self.value
|
|
|
|
ticks_per_sec = None
|
|
|
|
# how big does a rounding error need to be before we warn about it?
|
|
frequency_tolerance = 0.001 # 0.1%
|
|
|
|
# convert a floting-point # of ticks to integer, and warn if rounding
|
|
# discards too much precision
|
|
def tick_check(float_ticks):
|
|
if float_ticks == 0:
|
|
return 0
|
|
int_ticks = int(round(float_ticks))
|
|
err = (float_ticks - int_ticks) / float_ticks
|
|
if err > frequency_tolerance:
|
|
print >> sys.stderr, "Warning: rounding error > tolerance"
|
|
print >> sys.stderr, " %f rounded to %d" % (float_ticks, int_ticks)
|
|
#raise ValueError
|
|
return int_ticks
|
|
|
|
# superclass for "numeric" parameter values, to emulate math
|
|
# operations in a type-safe way. e.g., a Latency times an int returns
|
|
# a new Latency object.
|
|
class NumericParamValue(ParamValue):
|
|
def __str__(self):
|
|
return str(self.value)
|
|
|
|
def __float__(self):
|
|
return float(self.value)
|
|
|
|
def __mul__(self, other):
|
|
newobj = self.__class__(self)
|
|
newobj.value *= other
|
|
return newobj
|
|
|
|
__rmul__ = __mul__
|
|
|
|
def __div__(self, other):
|
|
newobj = self.__class__(self)
|
|
newobj.value /= other
|
|
return newobj
|
|
|
|
|
|
def getLatency(value):
|
|
if isinstance(value, Latency) or isinstance(value, Clock):
|
|
return value.value
|
|
elif isinstance(value, Frequency) or isinstance(value, RootClock):
|
|
return 1 / value.value
|
|
elif isinstance(value, str):
|
|
try:
|
|
return toLatency(value)
|
|
except ValueError:
|
|
try:
|
|
return 1 / toFrequency(value)
|
|
except ValueError:
|
|
pass # fall through
|
|
raise ValueError, "Invalid Frequency/Latency value '%s'" % value
|
|
|
|
|
|
class Latency(NumericParamValue):
|
|
def __init__(self, value):
|
|
self.value = getLatency(value)
|
|
|
|
def __getattr__(self, attr):
|
|
if attr in ('latency', 'period'):
|
|
return self
|
|
if attr == 'frequency':
|
|
return Frequency(self)
|
|
raise AttributeError, "Latency object has no attribute '%s'" % attr
|
|
|
|
# convert latency to ticks
|
|
def ini_str(self):
|
|
return str(tick_check(self.value * ticks_per_sec))
|
|
|
|
class Frequency(NumericParamValue):
|
|
def __init__(self, value):
|
|
self.value = 1 / getLatency(value)
|
|
|
|
def __getattr__(self, attr):
|
|
if attr == 'frequency':
|
|
return self
|
|
if attr in ('latency', 'period'):
|
|
return Latency(self)
|
|
raise AttributeError, "Frequency object has no attribute '%s'" % attr
|
|
|
|
# convert frequency to ticks per period
|
|
def ini_str(self):
|
|
return self.period.ini_str()
|
|
|
|
# Just like Frequency, except ini_str() is absolute # of ticks per sec (Hz).
|
|
# We can't inherit from Frequency because we don't want it to be directly
|
|
# assignable to a regular Frequency parameter.
|
|
class RootClock(ParamValue):
|
|
def __init__(self, value):
|
|
self.value = 1 / getLatency(value)
|
|
|
|
def __getattr__(self, attr):
|
|
if attr == 'frequency':
|
|
return Frequency(self)
|
|
if attr in ('latency', 'period'):
|
|
return Latency(self)
|
|
raise AttributeError, "Frequency object has no attribute '%s'" % attr
|
|
|
|
def ini_str(self):
|
|
return str(tick_check(self.value))
|
|
|
|
# A generic frequency and/or Latency value. Value is stored as a latency,
|
|
# but to avoid ambiguity this object does not support numeric ops (* or /).
|
|
# An explicit conversion to a Latency or Frequency must be made first.
|
|
class Clock(ParamValue):
|
|
def __init__(self, value):
|
|
self.value = getLatency(value)
|
|
|
|
def __getattr__(self, attr):
|
|
if attr == 'frequency':
|
|
return Frequency(self)
|
|
if attr in ('latency', 'period'):
|
|
return Latency(self)
|
|
raise AttributeError, "Frequency object has no attribute '%s'" % attr
|
|
|
|
def ini_str(self):
|
|
return self.period.ini_str()
|
|
|
|
class NetworkBandwidth(float,ParamValue):
|
|
def __new__(cls, value):
|
|
val = toNetworkBandwidth(value) / 8.0
|
|
return super(cls, NetworkBandwidth).__new__(cls, val)
|
|
|
|
def __str__(self):
|
|
return str(self.val)
|
|
|
|
def ini_str(self):
|
|
return '%f' % (ticks_per_sec / float(self))
|
|
|
|
class MemoryBandwidth(float,ParamValue):
|
|
def __new__(self, value):
|
|
val = toMemoryBandwidth(value)
|
|
return super(cls, MemoryBandwidth).__new__(cls, val)
|
|
|
|
def __str__(self):
|
|
return str(self.val)
|
|
|
|
def ini_str(self):
|
|
return '%f' % (ticks_per_sec / float(self))
|
|
|
|
#
|
|
# "Constants"... handy aliases for various values.
|
|
#
|
|
|
|
# Some memory range specifications use this as a default upper bound.
|
|
MaxAddr = Addr.max
|
|
MaxTick = Tick.max
|
|
AllMemory = AddrRange(0, MaxAddr)
|
|
|
|
#####################################################################
|
|
|
|
# The final hook to generate .ini files. Called from configuration
|
|
# script once config is built.
|
|
def instantiate(root):
|
|
global ticks_per_sec
|
|
ticks_per_sec = float(root.clock.frequency)
|
|
root.print_ini()
|
|
noDot = True # temporary until we fix dot
|
|
if not noDot:
|
|
dot = pydot.Dot()
|
|
instance.outputDot(dot)
|
|
dot.orientation = "portrait"
|
|
dot.size = "8.5,11"
|
|
dot.ranksep="equally"
|
|
dot.rank="samerank"
|
|
dot.write("config.dot")
|
|
dot.write_ps("config.ps")
|
|
|
|
# __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', 'ParamContext', 'Param', 'VectorParam',
|
|
'Parent', 'Self',
|
|
'Enum', 'Bool', 'String', 'Float',
|
|
'Int', 'Unsigned', 'Int8', 'UInt8', 'Int16', 'UInt16',
|
|
'Int32', 'UInt32', 'Int64', 'UInt64',
|
|
'Counter', 'Addr', 'Tick', 'Percent',
|
|
'TcpPort', 'UdpPort', 'EthernetAddr',
|
|
'MemorySize', 'Latency', 'Frequency', 'RootClock', 'Clock',
|
|
'NetworkBandwidth', 'MemoryBandwidth',
|
|
'Range', 'AddrRange', 'MaxAddr', 'MaxTick', 'AllMemory',
|
|
'Null', 'NULL',
|
|
'NextEthernetAddr', 'instantiate']
|
|
|