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811644b8 PP |
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 | ||
894a8df5 | 23 | from bt2 import native_bt, object |
811644b8 PP |
24 | import bt2.component |
25 | import bt2.connection | |
5602ef81 SM |
26 | import bt2.message_iterator |
27 | import bt2.message | |
811644b8 PP |
28 | import bt2 |
29 | ||
30 | ||
2c67587a SM |
31 | def _create_from_ptr_and_get_ref(ptr, port_type): |
32 | cls = _PORT_TYPE_TO_PYCLS.get(port_type, None) | |
33 | ||
34 | if cls is None: | |
35 | raise bt2.Error('unknown port type: {}'.format(port_type)) | |
36 | ||
37 | return cls._create_from_ptr_and_get_ref(ptr) | |
38 | ||
39 | ||
40 | def _create_self_from_ptr_and_get_ref(ptr, port_type): | |
41 | cls = _PORT_TYPE_TO_USER_PYCLS.get(port_type, None) | |
42 | ||
43 | if cls is None: | |
44 | raise bt2.Error('unknown port type: {}'.format(port_type)) | |
45 | ||
46 | return cls._create_from_ptr_and_get_ref(ptr) | |
47 | ||
48 | ||
78288f58 | 49 | class _Port(object._SharedObject): |
894a8df5 SM |
50 | @classmethod |
51 | def _get_ref(cls, ptr): | |
52 | ptr = cls._as_port_ptr(ptr) | |
53 | return native_bt.port_get_ref(ptr) | |
811644b8 | 54 | |
894a8df5 SM |
55 | @classmethod |
56 | def _put_ref(cls, ptr): | |
57 | ptr = cls._as_port_ptr(ptr) | |
58 | return native_bt.port_put_ref(ptr) | |
811644b8 PP |
59 | |
60 | @property | |
61 | def name(self): | |
894a8df5 SM |
62 | ptr = self._as_port_ptr(self._ptr) |
63 | name = native_bt.port_get_name(ptr) | |
64 | assert name is not None | |
65 | return name | |
811644b8 PP |
66 | |
67 | @property | |
68 | def connection(self): | |
894a8df5 SM |
69 | ptr = self._as_port_ptr(self._ptr) |
70 | conn_ptr = native_bt.port_borrow_connection_const(ptr) | |
811644b8 PP |
71 | |
72 | if conn_ptr is None: | |
73 | return | |
74 | ||
894a8df5 | 75 | return bt2.connection._Connection._create_from_ptr_and_get_ref(conn_ptr) |
811644b8 PP |
76 | |
77 | @property | |
78 | def is_connected(self): | |
79 | return self.connection is not None | |
80 | ||
811644b8 PP |
81 | |
82 | class _InputPort(_Port): | |
894a8df5 | 83 | _as_port_ptr = staticmethod(native_bt.port_input_as_port_const) |
811644b8 PP |
84 | |
85 | ||
86 | class _OutputPort(_Port): | |
894a8df5 | 87 | _as_port_ptr = staticmethod(native_bt.port_output_as_port_const) |
dc43190b | 88 | |
dc43190b | 89 | |
894a8df5 SM |
90 | class _UserComponentPort(_Port): |
91 | @classmethod | |
92 | def _as_port_ptr(cls, ptr): | |
93 | ptr = cls._as_self_port_ptr(ptr) | |
94 | return native_bt.self_component_port_as_port(ptr) | |
811644b8 PP |
95 | |
96 | @property | |
97 | def connection(self): | |
894a8df5 SM |
98 | ptr = self._as_port_ptr(self._ptr) |
99 | conn_ptr = native_bt.port_borrow_connection_const(ptr) | |
811644b8 PP |
100 | |
101 | if conn_ptr is None: | |
102 | return | |
103 | ||
894a8df5 | 104 | return bt2.connection._Connection._create_from_ptr_and_get_ref(conn_ptr) |
811644b8 | 105 | |
2e00bc76 SM |
106 | @property |
107 | def user_data(self): | |
108 | ptr = self._as_self_port_ptr(self._ptr) | |
109 | return native_bt.self_component_port_get_data(ptr) | |
110 | ||
811644b8 | 111 | |
894a8df5 SM |
112 | class _UserComponentInputPort(_UserComponentPort, _InputPort): |
113 | _as_self_port_ptr = staticmethod(native_bt.self_component_port_input_as_self_component_port) | |
811644b8 | 114 | |
5f25509b SM |
115 | def create_message_iterator(self): |
116 | msg_iter_ptr = native_bt.self_component_port_input_message_iterator_create(self._ptr) | |
117 | if msg_iter_ptr is None: | |
118 | raise bt2.CreationError('cannot create message iterator object') | |
119 | ||
120 | return bt2.message_iterator._UserComponentInputPortMessageIterator(msg_iter_ptr) | |
121 | ||
811644b8 | 122 | |
894a8df5 SM |
123 | class _UserComponentOutputPort(_UserComponentPort, _OutputPort): |
124 | _as_self_port_ptr = staticmethod(native_bt.self_component_port_output_as_self_component_port) | |
2c67587a SM |
125 | |
126 | ||
127 | _PORT_TYPE_TO_PYCLS = { | |
128 | native_bt.PORT_TYPE_INPUT: _InputPort, | |
129 | native_bt.PORT_TYPE_OUTPUT: _OutputPort, | |
130 | } | |
131 | ||
132 | ||
133 | _PORT_TYPE_TO_USER_PYCLS = { | |
134 | native_bt.PORT_TYPE_INPUT: _UserComponentInputPort, | |
135 | native_bt.PORT_TYPE_OUTPUT: _UserComponentOutputPort, | |
136 | } |