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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.packet | |
25 | import bt2.event | |
26 | import abc | |
27 | import bt2 | |
28 | ||
29 | ||
30 | def _create_from_ptr(stream_ptr): | |
31 | if native_bt.ctf_stream_is_writer(stream_ptr): | |
b322603a | 32 | import bt2.ctf_writer |
81447b5b | 33 | |
b322603a | 34 | cls = bt2.ctf_writer._CtfWriterStream |
81447b5b PP |
35 | else: |
36 | cls = _Stream | |
37 | ||
38 | return cls._create_from_ptr(stream_ptr) | |
39 | ||
40 | ||
41 | class _StreamBase(object._Object): | |
42 | @property | |
43 | def stream_class(self): | |
44 | stream_class_ptr = native_bt.ctf_stream_get_class(self._ptr) | |
f6a5e476 | 45 | assert(stream_class_ptr) |
81447b5b PP |
46 | return bt2.StreamClass._create_from_ptr(stream_class_ptr) |
47 | ||
48 | @property | |
49 | def name(self): | |
50 | return native_bt.ctf_stream_get_name(self._ptr) | |
51 | ||
f6a5e476 PP |
52 | @property |
53 | def id(self): | |
54 | id = native_bt.ctf_stream_get_id(self._ptr) | |
55 | return id if id >= 0 else None | |
56 | ||
81447b5b PP |
57 | def __eq__(self, other): |
58 | if self.addr == other.addr: | |
59 | return True | |
60 | ||
f6a5e476 | 61 | return (self.name, self.id) == (other.name, other.id) |
81447b5b PP |
62 | |
63 | ||
64 | class _Stream(_StreamBase): | |
65 | def create_packet(self): | |
66 | packet_ptr = native_bt.ctf_packet_create(self._ptr) | |
67 | ||
68 | if packet_ptr is None: | |
69 | raise bt2.CreationError('cannot create packet object') | |
70 | ||
71 | return bt2.packet._Packet._create_from_ptr(packet_ptr) | |
72 | ||
73 | def __eq__(self, other): | |
74 | if type(other) is not type(self): | |
75 | return False | |
76 | ||
77 | return _StreamBase.__eq__(self, other) | |
78 | ||
79 | def _copy(self): | |
f6a5e476 | 80 | return self.stream_class(self.name, self.id) |
81447b5b PP |
81 | |
82 | def __copy__(self): | |
83 | return self._copy() | |
84 | ||
85 | def __deepcopy__(self, memo): | |
86 | cpy = self._copy() | |
87 | memo[id(self)] = cpy | |
88 | return cpy |