blob: ecb52ac9760bce07208a785a9eff4833e1cc5425 [file] [log] [blame]
Rich Laneea693752013-03-18 11:05:45 -07001:: # Copyright 2013, Big Switch Networks, Inc.
2:: #
3:: # LoxiGen is licensed under the Eclipse Public License, version 1.0 (EPL), with
4:: # the following special exception:
5:: #
6:: # LOXI Exception
7:: #
8:: # As a special exception to the terms of the EPL, you may distribute libraries
9:: # generated by LoxiGen (LoxiGen Libraries) under the terms of your choice, provided
10:: # that copyright and licensing notices generated by LoxiGen are not altered or removed
11:: # from the LoxiGen Libraries and the notice provided below is (i) included in
12:: # the LoxiGen Libraries, if distributed in source code form and (ii) included in any
13:: # documentation for the LoxiGen Libraries, if distributed in binary form.
14:: #
15:: # Notice: "Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler."
16:: #
17:: # You may not use this file except in compliance with the EPL or LOXI Exception. You may obtain
18:: # a copy of the EPL at:
19:: #
20:: # http://www.eclipse.org/legal/epl-v10.html
21:: #
22:: # Unless required by applicable law or agreed to in writing, software
23:: # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
24:: # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
25:: # EPL for the specific language governing permissions and limitations
26:: # under the EPL.
27::
28:: import itertools
Rich Laneda11f8b2013-06-19 15:53:25 -070029:: import py_gen.oftype
Rich Laneea693752013-03-18 11:05:45 -070030:: include('_copyright.py')
31
32:: include('_autogen.py')
33
34import struct
35import const
36import util
Rich Lane15cbe842013-04-26 16:04:11 -070037import loxi.generic_util
Rich Laneea693752013-03-18 11:05:45 -070038import loxi
39
Rich Lanebe90eae2013-07-22 16:44:26 -070040def unpack(reader):
41 type_len, = reader.peek('!L')
42 if type_len in parsers:
43 return parsers[type_len](reader)
44 else:
45 raise loxi.ProtocolError("unknown OXM cls=%#x type=%#x masked=%d len=%d (%#x)" % \
46 ((type_len >> 16) & 0xffff, (type_len >> 9) & 0x7f, (type_len >> 8) & 1, type_len & 0xff, type_len))
47
Rich Lane21fd0112013-05-01 12:50:04 -070048def unpack_list(reader):
Rich Lanebe90eae2013-07-22 16:44:26 -070049 return loxi.generic_util.unpack_list(reader, unpack)
Rich Lane21fd0112013-05-01 12:50:04 -070050
Rich Laneea693752013-03-18 11:05:45 -070051class OXM(object):
52 type_len = None # override in subclass
53 pass
54
55:: for ofclass in ofclasses:
Rich Lane002e70c2013-05-09 17:08:16 -070056:: from loxi_ir import *
57:: normal_members = [m for m in ofclass.members if type(m) == OFDataMember]
58:: type_members = [m for m in ofclass.members if type(m) == OFTypeMember]
Rich Laneea693752013-03-18 11:05:45 -070059class ${ofclass.pyname}(OXM):
Rich Lane8ca3b772013-04-30 13:36:55 -070060:: for m in type_members:
Rich Laneea693752013-03-18 11:05:45 -070061 ${m.name} = ${m.value}
62:: #endfor
63
Rich Lane8ca3b772013-04-30 13:36:55 -070064 def __init__(self, ${', '.join(["%s=None" % m.name for m in normal_members])}):
65:: for m in normal_members:
Rich Laneea693752013-03-18 11:05:45 -070066 if ${m.name} != None:
67 self.${m.name} = ${m.name}
68 else:
Andreas Wundsam69ecfdc2013-09-17 13:50:12 -070069 self.${m.name} = ${py_gen.oftype.gen_init_expr(m.oftype, version=version)}
Rich Laneea693752013-03-18 11:05:45 -070070:: #endfor
71
72 def pack(self):
73 packed = []
Andreas Wundsam69ecfdc2013-09-17 13:50:12 -070074:: include("_pack.py", ofclass=ofclass, version=version)
Rich Laneea693752013-03-18 11:05:45 -070075 return ''.join(packed)
76
77 @staticmethod
78 def unpack(buf):
79 obj = ${ofclass.pyname}()
Andreas Wundsam69ecfdc2013-09-17 13:50:12 -070080:: include("_unpack.py", ofclass=ofclass, version=version)
Rich Laneea693752013-03-18 11:05:45 -070081 return obj
82
83 def __eq__(self, other):
84 if type(self) != type(other): return False
Rich Lane8ca3b772013-04-30 13:36:55 -070085:: for m in normal_members:
Rich Laneea693752013-03-18 11:05:45 -070086 if self.${m.name} != other.${m.name}: return False
87:: #endfor
88 return True
89
90 def __ne__(self, other):
91 return not self.__eq__(other)
92
93 def show(self):
94 import loxi.pp
95 return loxi.pp.pp(self)
96
97 def pretty_print(self, q):
98:: include('_pretty_print.py', ofclass=ofclass)
99
100:: #endfor
101
102parsers = {
Rich Lane002e70c2013-05-09 17:08:16 -0700103:: key = lambda x: x.type_members[0].value
Rich Laneea693752013-03-18 11:05:45 -0700104:: for ofclass in sorted(ofclasses, key=key):
105 ${key(ofclass)} : ${ofclass.pyname}.unpack,
106:: #endfor
107}