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0235b0db | 1 | # SPDX-License-Identifier: MIT |
81447b5b PP |
2 | # |
3 | # Copyright (c) 2016-2017 Philippe Proulx <pproulx@efficios.com> | |
81447b5b | 4 | |
5995b304 SM |
5 | import collections.abc |
6 | ||
7 | from bt2 import field as bt2_field | |
e5914347 | 8 | from bt2 import utils as bt2_utils |
5995b304 | 9 | from bt2 import object as bt2_object |
3fb99a22 PP |
10 | from bt2 import packet as bt2_packet |
11 | from bt2 import stream as bt2_stream | |
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12 | from bt2 import native_bt |
13 | from bt2 import event_class as bt2_event_class | |
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14 | |
15 | ||
e5914347 | 16 | class _EventConst(bt2_object._UniqueObject, collections.abc.Mapping): |
f0a42b33 FD |
17 | _borrow_class_ptr = staticmethod(native_bt.event_borrow_class_const) |
18 | _borrow_packet_ptr = staticmethod(native_bt.event_borrow_packet_const) | |
19 | _borrow_stream_ptr = staticmethod(native_bt.event_borrow_stream_const) | |
20 | _borrow_common_context_field_ptr = staticmethod( | |
21 | native_bt.event_borrow_common_context_field_const | |
22 | ) | |
23 | _borrow_specific_context_field_ptr = staticmethod( | |
24 | native_bt.event_borrow_specific_context_field_const | |
25 | ) | |
26 | _borrow_payload_field_ptr = staticmethod(native_bt.event_borrow_payload_field_const) | |
27 | _create_field_from_ptr = staticmethod(bt2_field._create_field_from_const_ptr) | |
28 | ||
29 | _event_class_pycls = property(lambda _: bt2_event_class._EventClassConst) | |
30 | _packet_pycls = property(lambda _: bt2_packet._PacketConst) | |
31 | _stream_pycls = property(lambda _: bt2_stream._StreamConst) | |
32 | ||
81447b5b | 33 | @property |
e8ac1aae | 34 | def cls(self): |
f0a42b33 | 35 | event_class_ptr = self._borrow_class_ptr(self._ptr) |
2ae9f48c | 36 | assert event_class_ptr is not None |
f0a42b33 | 37 | return self._event_class_pycls._create_from_ptr_and_get_ref(event_class_ptr) |
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38 | |
39 | @property | |
40 | def name(self): | |
e8ac1aae | 41 | return self.cls.name |
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42 | |
43 | @property | |
44 | def id(self): | |
e8ac1aae | 45 | return self.cls.id |
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46 | |
47 | @property | |
48 | def packet(self): | |
f0a42b33 | 49 | packet_ptr = self._borrow_packet_ptr(self._ptr) |
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50 | |
51 | if packet_ptr is None: | |
52 | return | |
53 | ||
f0a42b33 | 54 | return self._packet_pycls._create_from_ptr_and_get_ref(packet_ptr) |
81447b5b PP |
55 | |
56 | @property | |
57 | def stream(self): | |
f0a42b33 | 58 | stream_ptr = self._borrow_stream_ptr(self._ptr) |
2ae9f48c | 59 | assert stream_ptr is not None |
f0a42b33 | 60 | return self._stream_pycls._create_from_ptr_and_get_ref(stream_ptr) |
81447b5b PP |
61 | |
62 | @property | |
2ae9f48c | 63 | def common_context_field(self): |
f0a42b33 | 64 | field_ptr = self._borrow_common_context_field_ptr(self._ptr) |
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65 | |
66 | if field_ptr is None: | |
67 | return | |
68 | ||
f0a42b33 | 69 | return self._create_field_from_ptr( |
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70 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
71 | ) | |
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72 | |
73 | @property | |
2ae9f48c | 74 | def specific_context_field(self): |
f0a42b33 | 75 | field_ptr = self._borrow_specific_context_field_ptr(self._ptr) |
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76 | |
77 | if field_ptr is None: | |
78 | return | |
79 | ||
f0a42b33 | 80 | return self._create_field_from_ptr( |
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81 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
82 | ) | |
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83 | |
84 | @property | |
85 | def payload_field(self): | |
f0a42b33 | 86 | field_ptr = self._borrow_payload_field_ptr(self._ptr) |
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87 | |
88 | if field_ptr is None: | |
89 | return | |
90 | ||
f0a42b33 | 91 | return self._create_field_from_ptr( |
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92 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
93 | ) | |
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94 | |
95 | def __getitem__(self, key): | |
e5914347 | 96 | bt2_utils._check_str(key) |
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97 | payload_field = self.payload_field |
98 | ||
99 | if payload_field is not None and key in payload_field: | |
100 | return payload_field[key] | |
101 | ||
2ae9f48c | 102 | specific_context_field = self.specific_context_field |
81447b5b | 103 | |
2ae9f48c SM |
104 | if specific_context_field is not None and key in specific_context_field: |
105 | return specific_context_field[key] | |
81447b5b | 106 | |
2ae9f48c | 107 | common_context_field = self.common_context_field |
81447b5b | 108 | |
2ae9f48c SM |
109 | if common_context_field is not None and key in common_context_field: |
110 | return common_context_field[key] | |
81447b5b | 111 | |
3e05e718 PP |
112 | if self.packet: |
113 | packet_context_field = self.packet.context_field | |
81447b5b | 114 | |
3e05e718 PP |
115 | if packet_context_field is not None and key in packet_context_field: |
116 | return packet_context_field[key] | |
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117 | |
118 | raise KeyError(key) | |
f0a42b33 | 119 | |
f03b6364 PP |
120 | def __iter__(self): |
121 | # To only yield unique keys, keep a set of member names that are | |
122 | # already yielded. Two root structure fields (for example, | |
123 | # payload and common context) can contain immediate members | |
124 | # which share the same name. | |
125 | member_names = set() | |
126 | ||
127 | if self.payload_field is not None: | |
128 | for field_name in self.payload_field: | |
129 | yield field_name | |
130 | member_names.add(field_name) | |
131 | ||
132 | if self.specific_context_field is not None: | |
133 | for field_name in self.specific_context_field: | |
134 | if field_name not in member_names: | |
135 | yield field_name | |
136 | member_names.add(field_name) | |
137 | ||
138 | if self.common_context_field is not None: | |
139 | for field_name in self.common_context_field: | |
140 | if field_name not in member_names: | |
141 | yield field_name | |
142 | member_names.add(field_name) | |
143 | ||
144 | if self.packet and self.packet.context_field is not None: | |
145 | for field_name in self.packet.context_field: | |
146 | if field_name not in member_names: | |
147 | yield field_name | |
148 | member_names.add(field_name) | |
149 | ||
150 | def __len__(self): | |
151 | return sum(1 for _ in self) | |
152 | ||
f0a42b33 FD |
153 | |
154 | class _Event(_EventConst): | |
155 | _borrow_class_ptr = staticmethod(native_bt.event_borrow_class) | |
156 | _borrow_packet_ptr = staticmethod(native_bt.event_borrow_packet) | |
157 | _borrow_stream_ptr = staticmethod(native_bt.event_borrow_stream) | |
158 | _borrow_common_context_field_ptr = staticmethod( | |
159 | native_bt.event_borrow_common_context_field | |
160 | ) | |
161 | _borrow_specific_context_field_ptr = staticmethod( | |
162 | native_bt.event_borrow_specific_context_field | |
163 | ) | |
164 | _borrow_payload_field_ptr = staticmethod(native_bt.event_borrow_payload_field) | |
165 | _create_field_from_ptr = staticmethod(bt2_field._create_field_from_ptr) | |
166 | ||
167 | _event_class_pycls = property(lambda _: bt2_event_class._EventClass) | |
168 | _packet_pycls = property(lambda _: bt2_packet._Packet) | |
169 | _stream_pycls = property(lambda _: bt2_stream._Stream) |