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81447b5b PP |
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): | |
50842bdc | 31 | import bt2.ctf_writer |
81447b5b | 32 | |
50842bdc | 33 | if native_bt.stream_is_writer(stream_ptr): |
e29b342c | 34 | cls = bt2.ctf_writer._CtfWriterStream |
81447b5b PP |
35 | else: |
36 | cls = _Stream | |
37 | ||
38 | return cls._create_from_ptr(stream_ptr) | |
39 | ||
40 | ||
78288f58 | 41 | class _StreamBase(object._SharedObject): |
81447b5b PP |
42 | @property |
43 | def stream_class(self): | |
50842bdc | 44 | stream_class_ptr = native_bt.stream_get_class(self._ptr) |
811644b8 | 45 | assert(stream_class_ptr) |
81447b5b PP |
46 | return bt2.StreamClass._create_from_ptr(stream_class_ptr) |
47 | ||
48 | @property | |
49 | def name(self): | |
50842bdc | 50 | return native_bt.stream_get_name(self._ptr) |
81447b5b | 51 | |
811644b8 PP |
52 | @property |
53 | def id(self): | |
50842bdc | 54 | id = native_bt.stream_get_id(self._ptr) |
811644b8 PP |
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 | ||
811644b8 | 61 | return (self.name, self.id) == (other.name, other.id) |
81447b5b PP |
62 | |
63 | ||
64 | class _Stream(_StreamBase): | |
8c2367b8 SM |
65 | _get_ref = staticmethod(native_bt.stream_get_ref) |
66 | _put_ref = staticmethod(native_bt.stream_put_ref) | |
67 | ||
81447b5b | 68 | def create_packet(self): |
50842bdc | 69 | packet_ptr = native_bt.packet_create(self._ptr) |
81447b5b PP |
70 | |
71 | if packet_ptr is None: | |
72 | raise bt2.CreationError('cannot create packet object') | |
73 | ||
74 | return bt2.packet._Packet._create_from_ptr(packet_ptr) | |
75 | ||
76 | def __eq__(self, other): | |
77 | if type(other) is not type(self): | |
78 | return False | |
79 | ||
80 | return _StreamBase.__eq__(self, other) | |
81 | ||
82 | def _copy(self): | |
811644b8 | 83 | return self.stream_class(self.name, self.id) |
81447b5b PP |
84 | |
85 | def __copy__(self): | |
86 | return self._copy() | |
87 | ||
88 | def __deepcopy__(self, memo): | |
89 | cpy = self._copy() | |
90 | memo[id(self)] = cpy | |
91 | return cpy |