| 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 |
| 24 | import bt2.component |
| 25 | import bt2.connection |
| 26 | import bt2.message_iterator |
| 27 | import bt2.message |
| 28 | import bt2 |
| 29 | |
| 30 | |
| 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 | |
| 49 | class _Port(object._SharedObject): |
| 50 | @classmethod |
| 51 | def _get_ref(cls, ptr): |
| 52 | ptr = cls._as_port_ptr(ptr) |
| 53 | return native_bt.port_get_ref(ptr) |
| 54 | |
| 55 | @classmethod |
| 56 | def _put_ref(cls, ptr): |
| 57 | ptr = cls._as_port_ptr(ptr) |
| 58 | return native_bt.port_put_ref(ptr) |
| 59 | |
| 60 | @property |
| 61 | def name(self): |
| 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 |
| 66 | |
| 67 | @property |
| 68 | def connection(self): |
| 69 | ptr = self._as_port_ptr(self._ptr) |
| 70 | conn_ptr = native_bt.port_borrow_connection_const(ptr) |
| 71 | |
| 72 | if conn_ptr is None: |
| 73 | return |
| 74 | |
| 75 | return bt2.connection._Connection._create_from_ptr_and_get_ref(conn_ptr) |
| 76 | |
| 77 | @property |
| 78 | def is_connected(self): |
| 79 | return self.connection is not None |
| 80 | |
| 81 | |
| 82 | class _InputPort(_Port): |
| 83 | _as_port_ptr = staticmethod(native_bt.port_input_as_port_const) |
| 84 | |
| 85 | |
| 86 | class _OutputPort(_Port): |
| 87 | _as_port_ptr = staticmethod(native_bt.port_output_as_port_const) |
| 88 | |
| 89 | |
| 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) |
| 95 | |
| 96 | @property |
| 97 | def connection(self): |
| 98 | ptr = self._as_port_ptr(self._ptr) |
| 99 | conn_ptr = native_bt.port_borrow_connection_const(ptr) |
| 100 | |
| 101 | if conn_ptr is None: |
| 102 | return |
| 103 | |
| 104 | return bt2.connection._Connection._create_from_ptr_and_get_ref(conn_ptr) |
| 105 | |
| 106 | |
| 107 | class _UserComponentInputPort(_UserComponentPort, _InputPort): |
| 108 | _as_self_port_ptr = staticmethod(native_bt.self_component_port_input_as_self_component_port) |
| 109 | |
| 110 | |
| 111 | class _UserComponentOutputPort(_UserComponentPort, _OutputPort): |
| 112 | _as_self_port_ptr = staticmethod(native_bt.self_component_port_output_as_self_component_port) |
| 113 | |
| 114 | |
| 115 | _PORT_TYPE_TO_PYCLS = { |
| 116 | native_bt.PORT_TYPE_INPUT: _InputPort, |
| 117 | native_bt.PORT_TYPE_OUTPUT: _OutputPort, |
| 118 | } |
| 119 | |
| 120 | |
| 121 | _PORT_TYPE_TO_USER_PYCLS = { |
| 122 | native_bt.PORT_TYPE_INPUT: _UserComponentInputPort, |
| 123 | native_bt.PORT_TYPE_OUTPUT: _UserComponentOutputPort, |
| 124 | } |