blob: 792c277be0138a77571986db9948c1715d863126 [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
29:: import of_g
Rich Laneda11f8b2013-06-19 15:53:25 -070030:: import py_gen.oftype
Rich Laneea693752013-03-18 11:05:45 -070031:: include('_copyright.py')
32
33:: include('_autogen.py')
34
35import struct
36import const
37import util
Rich Lane15cbe842013-04-26 16:04:11 -070038import loxi.generic_util
Rich Laneea693752013-03-18 11:05:45 -070039import loxi
40
Rich Lanebe90eae2013-07-22 16:44:26 -070041def unpack(reader):
42 type_len, = reader.peek('!L')
43 if type_len in parsers:
44 return parsers[type_len](reader)
45 else:
46 raise loxi.ProtocolError("unknown OXM cls=%#x type=%#x masked=%d len=%d (%#x)" % \
47 ((type_len >> 16) & 0xffff, (type_len >> 9) & 0x7f, (type_len >> 8) & 1, type_len & 0xff, type_len))
48
Rich Lane21fd0112013-05-01 12:50:04 -070049def unpack_list(reader):
Rich Lanebe90eae2013-07-22 16:44:26 -070050 return loxi.generic_util.unpack_list(reader, unpack)
Rich Lane21fd0112013-05-01 12:50:04 -070051
Rich Laneea693752013-03-18 11:05:45 -070052class OXM(object):
53 type_len = None # override in subclass
54 pass
55
56:: for ofclass in ofclasses:
Rich Lane002e70c2013-05-09 17:08:16 -070057:: from loxi_ir import *
58:: normal_members = [m for m in ofclass.members if type(m) == OFDataMember]
59:: type_members = [m for m in ofclass.members if type(m) == OFTypeMember]
Rich Laneea693752013-03-18 11:05:45 -070060class ${ofclass.pyname}(OXM):
Rich Lane8ca3b772013-04-30 13:36:55 -070061:: for m in type_members:
Rich Laneea693752013-03-18 11:05:45 -070062 ${m.name} = ${m.value}
63:: #endfor
64
Rich Lane8ca3b772013-04-30 13:36:55 -070065 def __init__(self, ${', '.join(["%s=None" % m.name for m in normal_members])}):
66:: for m in normal_members:
Rich Laneea693752013-03-18 11:05:45 -070067 if ${m.name} != None:
68 self.${m.name} = ${m.name}
69 else:
Rich Laneda11f8b2013-06-19 15:53:25 -070070 self.${m.name} = ${py_gen.oftype.gen_init_expr(m.oftype)}
Rich Laneea693752013-03-18 11:05:45 -070071:: #endfor
72
73 def pack(self):
74 packed = []
75:: include("_pack.py", ofclass=ofclass)
76 return ''.join(packed)
77
78 @staticmethod
79 def unpack(buf):
80 obj = ${ofclass.pyname}()
81:: include("_unpack.py", ofclass=ofclass)
82 return obj
83
84 def __eq__(self, other):
85 if type(self) != type(other): return False
Rich Lane8ca3b772013-04-30 13:36:55 -070086:: for m in normal_members:
Rich Laneea693752013-03-18 11:05:45 -070087 if self.${m.name} != other.${m.name}: return False
88:: #endfor
89 return True
90
91 def __ne__(self, other):
92 return not self.__eq__(other)
93
94 def show(self):
95 import loxi.pp
96 return loxi.pp.pp(self)
97
98 def pretty_print(self, q):
99:: include('_pretty_print.py', ofclass=ofclass)
100
101:: #endfor
102
103parsers = {
Rich Lane002e70c2013-05-09 17:08:16 -0700104:: key = lambda x: x.type_members[0].value
Rich Laneea693752013-03-18 11:05:45 -0700105:: for ofclass in sorted(ofclasses, key=key):
106 ${key(ofclass)} : ${ofclass.pyname}.unpack,
107:: #endfor
108}