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1 | # The MIT License (MIT) |
2 | # | |
3 | # Copyright (c) 2016-2017 Philippe Proulx <pproulx@efficios.com> | |
4 | # | |
5 | # Permission is hereby granted, free of charge, to any person obtaining a copy | |
6 | # of this software and associated documentation files (the "Software"), to deal | |
7 | # in the Software without restriction, including without limitation the rights | |
8 | # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
9 | # copies of the Software, and to permit persons to whom the Software is | |
10 | # furnished to do so, subject to the following conditions: | |
11 | # | |
12 | # The above copyright notice and this permission notice shall be included in | |
13 | # all copies or substantial portions of the Software. | |
14 | # | |
15 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
18 | # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
21 | # THE SOFTWARE. | |
22 | ||
23 | from bt2 import native_bt, object, utils | |
24 | import bt2.fields | |
25 | import bt2.stream | |
26 | import copy | |
27 | import abc | |
28 | import bt2 | |
29 | ||
30 | ||
31 | class _Packet(object._Object): | |
32 | @property | |
33 | def stream(self): | |
34 | stream_ptr = native_bt.ctf_packet_get_stream(self._ptr) | |
35 | utils._handle_ptr(stream_ptr, "cannot get packet object's stream object") | |
36 | return bt2.stream._Stream._create_from_ptr(stream_ptr) | |
37 | ||
38 | @property | |
39 | def header_field(self): | |
40 | field_ptr = native_bt.ctf_packet_get_header(self._ptr) | |
41 | ||
42 | if field_ptr is None: | |
43 | return | |
44 | ||
45 | return bt2.fields._create_from_ptr(field_ptr) | |
46 | ||
47 | @header_field.setter | |
48 | def header_field(self, header_field): | |
49 | header_field_ptr = None | |
50 | ||
51 | if header_field is not None: | |
52 | utils._check_type(header_field, bt2.fields._Field) | |
53 | header_field_ptr = header_field._ptr | |
54 | ||
55 | ret = native_bt.ctf_packet_set_header(self._ptr, header_field_ptr) | |
56 | utils._handle_ret(ret, "cannot set packet object's header field") | |
57 | ||
58 | @property | |
59 | def context_field(self): | |
60 | field_ptr = native_bt.ctf_packet_get_context(self._ptr) | |
61 | ||
62 | if field_ptr is None: | |
63 | return | |
64 | ||
65 | return bt2.fields._create_from_ptr(field_ptr) | |
66 | ||
67 | @context_field.setter | |
68 | def context_field(self, context_field): | |
69 | context_field_ptr = None | |
70 | ||
71 | if context_field is not None: | |
72 | utils._check_type(context_field, bt2.fields._Field) | |
73 | context_field_ptr = context_field._ptr | |
74 | ||
75 | ret = native_bt.ctf_packet_set_context(self._ptr, context_field_ptr) | |
76 | utils._handle_ret(ret, "cannot set packet object's context field") | |
77 | ||
78 | def __eq__(self, other): | |
79 | if type(other) is not type(self): | |
80 | return False | |
81 | ||
82 | if self.addr == other.addr: | |
83 | return True | |
84 | ||
85 | self_props = ( | |
86 | self.header_field, | |
87 | self.context_field, | |
88 | ) | |
89 | other_props = ( | |
90 | other.header_field, | |
91 | other.context_field, | |
92 | ) | |
93 | return self_props == other_props | |
94 | ||
95 | def _copy(self, copy_func): | |
96 | cpy = self.stream.create_packet() | |
97 | cpy.header_field = copy_func(self.header_field) | |
98 | cpy.context_field = copy_func(self.context_field) | |
99 | return cpy | |
100 | ||
101 | def __copy__(self): | |
102 | return self._copy(copy.copy) | |
103 | ||
104 | def __deepcopy__(self, memo): | |
105 | cpy = self._copy(copy.deepcopy) | |
106 | memo[id(self)] = cpy | |
107 | return cpy |