Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 1 | :: # 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 | :: include('_copyright.py') |
| 29 | |
| 30 | :: include('_autogen.py') |
| 31 | |
| 32 | import sys |
| 33 | import struct |
| 34 | import action |
| 35 | import const |
| 36 | import util |
| 37 | |
| 38 | # HACK make this module visible as 'common' to simplify code generation |
| 39 | common = sys.modules[__name__] |
| 40 | |
| 41 | def unpack_list_flow_stats_entry(buf): |
| 42 | entries = [] |
| 43 | offset = 0 |
| 44 | while offset < len(buf): |
| 45 | length, = struct.unpack_from("!H", buf, offset) |
| 46 | if length == 0: raise loxi.ProtocolError("entry length is 0") |
| 47 | if offset + length > len(buf): raise loxi.ProtocolError("entry length overruns list length") |
| 48 | entries.append(flow_stats_entry.unpack(buffer(buf, offset, length))) |
| 49 | offset += length |
| 50 | return entries |
| 51 | |
| 52 | def unpack_list_queue_prop(buf): |
| 53 | entries = [] |
| 54 | offset = 0 |
| 55 | while offset < len(buf): |
| 56 | type, length, = struct.unpack_from("!HH", buf, offset) |
| 57 | if length == 0: raise loxi.ProtocolError("entry length is 0") |
| 58 | if offset + length > len(buf): raise loxi.ProtocolError("entry length overruns list length") |
| 59 | if type == const.OFPQT_MIN_RATE: |
| 60 | entry = queue_prop_min_rate.unpack(buffer(buf, offset, length)) |
| 61 | else: |
| 62 | raise loxi.ProtocolError("unknown queue prop %d" % type) |
| 63 | entries.append(entry) |
| 64 | offset += length |
| 65 | return entries |
| 66 | |
| 67 | def unpack_list_packet_queue(buf): |
| 68 | entries = [] |
| 69 | offset = 0 |
| 70 | while offset < len(buf): |
| 71 | _, length, = struct.unpack_from("!LH", buf, offset) |
| 72 | if length == 0: raise loxi.ProtocolError("entry length is 0") |
| 73 | if offset + length > len(buf): raise loxi.ProtocolError("entry length overruns list length") |
| 74 | entries.append(packet_queue.unpack(buffer(buf, offset, length))) |
| 75 | offset += length |
| 76 | return entries |
| 77 | |
| 78 | :: for ofclass in ofclasses: |
| 79 | class ${ofclass.pyname}(object): |
| 80 | :: for m in ofclass.type_members: |
| 81 | ${m.name} = ${m.value} |
| 82 | :: #endfor |
| 83 | |
| 84 | def __init__(self, ${', '.join(["%s=None" % m.name for m in ofclass.members])}): |
| 85 | :: for m in ofclass.members: |
| 86 | if ${m.name} != None: |
| 87 | self.${m.name} = ${m.name} |
| 88 | else: |
| 89 | self.${m.name} = ${m.oftype.gen_init_expr()} |
| 90 | :: #endfor |
| 91 | |
| 92 | def pack(self): |
| 93 | packed = [] |
| 94 | :: include("_pack.py", ofclass=ofclass) |
| 95 | return ''.join(packed) |
| 96 | |
| 97 | @staticmethod |
| 98 | def unpack(buf): |
| 99 | assert(len(buf) >= ${ofclass.min_length}) # Should be verified by caller |
| 100 | obj = ${ofclass.pyname}() |
| 101 | :: include("_unpack.py", ofclass=ofclass) |
| 102 | return obj |
| 103 | |
| 104 | def __eq__(self, other): |
| 105 | if type(self) != type(other): return False |
| 106 | :: for m in ofclass.members: |
| 107 | if self.${m.name} != other.${m.name}: return False |
| 108 | :: #endfor |
| 109 | return True |
| 110 | |
| 111 | def __ne__(self, other): |
| 112 | return not self.__eq__(other) |
| 113 | |
| 114 | def show(self): |
| 115 | import loxi.pp |
| 116 | return loxi.pp.pp(self) |
| 117 | |
| 118 | def pretty_print(self, q): |
| 119 | :: include('_pretty_print.py', ofclass=ofclass) |
| 120 | |
| 121 | :: if ofclass.name.startswith("of_match_v"): |
| 122 | match = ${ofclass.pyname} |
| 123 | |
| 124 | :: #endif |
| 125 | :: #endfor |