| 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, utils |
| 24 | from bt2 import object as bt2_object |
| 25 | from bt2 import packet as bt2_packet |
| 26 | from bt2 import trace as bt2_trace |
| 27 | from bt2 import stream_class as bt2_stream_class |
| 28 | from bt2 import value as bt2_value |
| 29 | import bt2 |
| 30 | |
| 31 | |
| 32 | class _StreamConst(bt2_object._SharedObject): |
| 33 | _get_ref = staticmethod(native_bt.stream_get_ref) |
| 34 | _put_ref = staticmethod(native_bt.stream_put_ref) |
| 35 | _borrow_class_ptr = staticmethod(native_bt.stream_borrow_class_const) |
| 36 | _borrow_user_attributes_ptr = staticmethod( |
| 37 | native_bt.stream_borrow_user_attributes_const |
| 38 | ) |
| 39 | _create_value_from_ptr_and_get_ref = staticmethod( |
| 40 | bt2_value._create_from_const_ptr_and_get_ref |
| 41 | ) |
| 42 | _borrow_trace_ptr = staticmethod(native_bt.stream_borrow_trace_const) |
| 43 | _stream_class_pycls = bt2_stream_class._StreamClassConst |
| 44 | _trace_pycls = bt2_trace._TraceConst |
| 45 | |
| 46 | @property |
| 47 | def cls(self): |
| 48 | stream_class_ptr = self._borrow_class_ptr(self._ptr) |
| 49 | assert stream_class_ptr is not None |
| 50 | return self._stream_class_pycls._create_from_ptr_and_get_ref(stream_class_ptr) |
| 51 | |
| 52 | @property |
| 53 | def name(self): |
| 54 | return native_bt.stream_get_name(self._ptr) |
| 55 | |
| 56 | @property |
| 57 | def user_attributes(self): |
| 58 | ptr = self._borrow_user_attributes_ptr(self._ptr) |
| 59 | assert ptr is not None |
| 60 | return self._create_value_from_ptr_and_get_ref(ptr) |
| 61 | |
| 62 | @property |
| 63 | def id(self): |
| 64 | id = native_bt.stream_get_id(self._ptr) |
| 65 | return id if id >= 0 else None |
| 66 | |
| 67 | @property |
| 68 | def trace(self): |
| 69 | trace_ptr = self._borrow_trace_ptr(self._ptr) |
| 70 | assert trace_ptr is not None |
| 71 | return self._trace_pycls._create_from_ptr_and_get_ref(trace_ptr) |
| 72 | |
| 73 | |
| 74 | class _Stream(_StreamConst): |
| 75 | _borrow_class_ptr = staticmethod(native_bt.stream_borrow_class) |
| 76 | _borrow_user_attributes_ptr = staticmethod(native_bt.stream_borrow_user_attributes) |
| 77 | _create_value_from_ptr_and_get_ref = staticmethod( |
| 78 | bt2_value._create_from_ptr_and_get_ref |
| 79 | ) |
| 80 | _borrow_trace_ptr = staticmethod(native_bt.stream_borrow_trace) |
| 81 | _stream_class_pycls = bt2_stream_class._StreamClass |
| 82 | _trace_pycls = bt2_trace._Trace |
| 83 | |
| 84 | def create_packet(self): |
| 85 | if not self.cls.supports_packets: |
| 86 | raise ValueError( |
| 87 | 'cannot create packet: stream class does not support packets' |
| 88 | ) |
| 89 | |
| 90 | packet_ptr = native_bt.packet_create(self._ptr) |
| 91 | |
| 92 | if packet_ptr is None: |
| 93 | raise bt2._MemoryError('cannot create packet object') |
| 94 | |
| 95 | return bt2_packet._Packet._create_from_ptr(packet_ptr) |
| 96 | |
| 97 | def _user_attributes(self, user_attributes): |
| 98 | value = bt2_value.create_value(user_attributes) |
| 99 | utils._check_type(value, bt2_value.MapValue) |
| 100 | native_bt.stream_set_user_attributes(self._ptr, value._ptr) |
| 101 | |
| 102 | _user_attributes = property( |
| 103 | fget=_StreamConst.user_attributes.fget, fset=_user_attributes |
| 104 | ) |
| 105 | |
| 106 | def _name(self, name): |
| 107 | utils._check_str(name) |
| 108 | native_bt.stream_set_name(self._ptr, name) |
| 109 | |
| 110 | _name = property(fget=_StreamConst.name.fget, fset=_name) |