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1 | # The MIT License (MIT) |
2 | # | |
3 | # Copyright (c) 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.stream | |
26 | import bt2.event | |
27 | import bt2 | |
28 | ||
29 | ||
30 | def _create_from_ptr(ptr): | |
31 | notif_type = native_bt.notification_get_type(ptr) | |
32 | cls = None | |
33 | ||
34 | if notif_type not in _NOTIF_TYPE_TO_CLS: | |
35 | raise bt2.Error('unknown notification type: {}'.format(notif_type)) | |
36 | ||
37 | return _NOTIF_TYPE_TO_CLS[notif_type]._create_from_ptr(ptr) | |
38 | ||
39 | ||
40 | class _Notification(object._Object): | |
41 | pass | |
42 | ||
43 | ||
44 | class TraceEventNotification(_Notification): | |
45 | def __init__(self, event): | |
46 | utils._check_type(event, bt2.event._Event) | |
47 | ptr = native_bt.notification_event_create(event._ptr) | |
48 | ||
49 | if ptr is None: | |
50 | raise bt2.CreationError('cannot create trace event notification object') | |
51 | ||
52 | super().__init__(ptr) | |
53 | ||
54 | @property | |
55 | def event(self): | |
56 | event_ptr = native_bt.notification_event_get_event(self._ptr) | |
57 | utils._handle_ptr(event_ptr, "cannot get trace event notification object's event object") | |
58 | return bt2.event._create_from_ptr(event_ptr) | |
59 | ||
60 | ||
61 | class BeginningOfPacketNotification(_Notification): | |
62 | def __init__(self, packet): | |
63 | utils._check_type(packet, bt2.packet._Packet) | |
64 | ptr = native_bt.notification_packet_begin_create(packet._ptr) | |
65 | ||
66 | if ptr is None: | |
67 | raise bt2.CreationError('cannot create beginning of packet notification object') | |
68 | ||
69 | super().__init__(ptr) | |
70 | ||
71 | @property | |
72 | def packet(self): | |
73 | packet_ptr = native_bt.notification_packet_begin_get_packet(self._ptr) | |
74 | utils._handle_ptr(packet_ptr, "cannot get beginning of packet notification object's packet object") | |
75 | return bt2.packet._Packet._create_from_ptr(packet_ptr) | |
76 | ||
77 | ||
78 | class EndOfPacketNotification(_Notification): | |
79 | def __init__(self, packet): | |
80 | utils._check_type(packet, bt2.packet._Packet) | |
81 | ptr = native_bt.notification_packet_end_create(packet._ptr) | |
82 | ||
83 | if ptr is None: | |
84 | raise bt2.CreationError('cannot create end of packet notification object') | |
85 | ||
86 | super().__init__(ptr) | |
87 | ||
88 | @property | |
89 | def packet(self): | |
90 | packet_ptr = native_bt.notification_packet_end_get_packet(self._ptr) | |
91 | utils._handle_ptr(packet_ptr, "cannot get end of packet notification object's packet object") | |
92 | return bt2.packet._Packet._create_from_ptr(packet_ptr) | |
93 | ||
94 | ||
95 | class EndOfStreamNotification(_Notification): | |
96 | def __init__(self, stream): | |
97 | utils._check_type(stream, bt2.stream._Stream) | |
98 | ptr = native_bt.notification_stream_end_create(stream._ptr) | |
99 | ||
100 | if ptr is None: | |
101 | raise bt2.CreationError('cannot create end of stream notification object') | |
102 | ||
103 | super().__init__(ptr) | |
104 | ||
105 | @property | |
106 | def stream(self): | |
107 | stream_ptr = native_bt.notification_stream_end_get_stream(self._ptr) | |
108 | utils._handle_ptr(stream_ptr, "cannot get end of stream notification object's stream object") | |
109 | return bt2.stream._create_from_ptr(stream_ptr) | |
110 | ||
111 | ||
112 | class NewTraceNotification(_Notification): | |
113 | def __init__(self, trace): | |
114 | utils._check_type(trace, bt2.Trace) | |
115 | ptr = native_bt.notification_new_trace_create(trace._ptr) | |
116 | ||
117 | if ptr is None: | |
118 | raise bt2.CreationError('cannot create new trace notification object') | |
119 | ||
120 | super().__init__(ptr) | |
121 | ||
122 | @property | |
123 | def trace(self): | |
124 | trace_ptr = native_bt.notification_new_trace_get_trace(self._ptr) | |
125 | utils._handle_ptr(trace_ptr, "cannot get new trace notification object's trace object") | |
126 | return bt2.trace._create_from_ptr(trace_ptr) | |
127 | ||
128 | ||
129 | class NewStreamClassNotification(_Notification): | |
130 | def __init__(self, stream_class): | |
131 | utils._check_type(stream_class, bt2.StreamClass) | |
132 | ptr = native_bt.notification_new_stream_class_create(stream_class._ptr) | |
133 | ||
134 | if ptr is None: | |
135 | raise bt2.CreationError('cannot create new stream class notification object') | |
136 | ||
137 | super().__init__(ptr) | |
138 | ||
139 | @property | |
140 | def stream_class(self): | |
141 | stream_class_ptr = native_bt.notification_new_stream_class_get_stream_class(self._ptr) | |
142 | utils._handle_ptr(stream_class_ptr, "cannot get new stream class notification object's stream class object") | |
143 | return bt2.stream_class.StreamClass._create_from_ptr(stream_class_ptr) | |
144 | ||
145 | ||
146 | _NOTIF_TYPE_TO_CLS = { | |
147 | native_bt.NOTIFICATION_TYPE_EVENT: TraceEventNotification, | |
148 | native_bt.NOTIFICATION_TYPE_PACKET_BEGIN: BeginningOfPacketNotification, | |
149 | native_bt.NOTIFICATION_TYPE_PACKET_END: EndOfPacketNotification, | |
150 | native_bt.NOTIFICATION_TYPE_STREAM_END: EndOfStreamNotification, | |
151 | native_bt.NOTIFICATION_TYPE_NEW_TRACE: NewTraceNotification, | |
152 | native_bt.NOTIFICATION_TYPE_NEW_STREAM_CLASS: NewStreamClassNotification, | |
153 | } |