| 1 | # The MIT License (MIT) |
| 2 | # |
| 3 | # Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com> |
| 4 | # Copyright (c) 2018 Francis Deslauriers <francis.deslauriers@efficios.com> |
| 5 | # Copyright (c) 2019 Simon Marchi <simon.marchi@efficios.com> |
| 6 | # |
| 7 | # Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | # of this software and associated documentation files (the "Software"), to deal |
| 9 | # in the Software without restriction, including without limitation the rights |
| 10 | # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 11 | # copies of the Software, and to permit persons to whom the Software is |
| 12 | # furnished to do so, subject to the following conditions: |
| 13 | # |
| 14 | # The above copyright notice and this permission notice shall be included in |
| 15 | # all copies or substantial portions of the Software. |
| 16 | # |
| 17 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 20 | # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 22 | # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 23 | # THE SOFTWARE. |
| 24 | |
| 25 | from bt2 import native_bt, utils, object |
| 26 | from bt2 import stream_class as bt2_stream_class |
| 27 | from bt2 import field_class as bt2_field_class |
| 28 | from bt2 import integer_range_set as bt2_integer_range_set |
| 29 | from bt2 import trace as bt2_trace |
| 30 | from bt2 import value as bt2_value |
| 31 | import collections.abc |
| 32 | import functools |
| 33 | import bt2 |
| 34 | |
| 35 | |
| 36 | def _trace_class_destruction_listener_from_native( |
| 37 | user_listener, handle, trace_class_ptr |
| 38 | ): |
| 39 | trace_class = _TraceClass._create_from_ptr_and_get_ref(trace_class_ptr) |
| 40 | user_listener(trace_class) |
| 41 | handle._invalidate() |
| 42 | |
| 43 | |
| 44 | class _TraceClassConst(object._SharedObject, collections.abc.Mapping): |
| 45 | _get_ref = staticmethod(native_bt.trace_class_get_ref) |
| 46 | _put_ref = staticmethod(native_bt.trace_class_put_ref) |
| 47 | _borrow_stream_class_ptr_by_index = staticmethod( |
| 48 | native_bt.trace_class_borrow_stream_class_by_index_const |
| 49 | ) |
| 50 | _borrow_stream_class_ptr_by_id = staticmethod( |
| 51 | native_bt.trace_class_borrow_stream_class_by_id_const |
| 52 | ) |
| 53 | _borrow_user_attributes_ptr = staticmethod( |
| 54 | native_bt.trace_class_borrow_user_attributes_const |
| 55 | ) |
| 56 | _stream_class_pycls = bt2_stream_class._StreamClassConst |
| 57 | _create_value_from_ptr_and_get_ref = staticmethod( |
| 58 | bt2_value._create_from_const_ptr_and_get_ref |
| 59 | ) |
| 60 | |
| 61 | @property |
| 62 | def user_attributes(self): |
| 63 | ptr = self._borrow_user_attributes_ptr(self._ptr) |
| 64 | assert ptr is not None |
| 65 | return self._create_value_from_ptr_and_get_ref(ptr) |
| 66 | |
| 67 | # Number of stream classes in this trace class. |
| 68 | |
| 69 | def __len__(self): |
| 70 | count = native_bt.trace_class_get_stream_class_count(self._ptr) |
| 71 | assert count >= 0 |
| 72 | return count |
| 73 | |
| 74 | # Get a stream class by stream id. |
| 75 | |
| 76 | def __getitem__(self, key): |
| 77 | utils._check_uint64(key) |
| 78 | |
| 79 | sc_ptr = self._borrow_stream_class_ptr_by_id(self._ptr, key) |
| 80 | if sc_ptr is None: |
| 81 | raise KeyError(key) |
| 82 | |
| 83 | return self._stream_class_pycls._create_from_ptr_and_get_ref(sc_ptr) |
| 84 | |
| 85 | def __iter__(self): |
| 86 | for idx in range(len(self)): |
| 87 | sc_ptr = self._borrow_stream_class_ptr_by_index(self._ptr, idx) |
| 88 | assert sc_ptr is not None |
| 89 | |
| 90 | id = native_bt.stream_class_get_id(sc_ptr) |
| 91 | assert id >= 0 |
| 92 | |
| 93 | yield id |
| 94 | |
| 95 | @property |
| 96 | def assigns_automatic_stream_class_id(self): |
| 97 | return native_bt.trace_class_assigns_automatic_stream_class_id(self._ptr) |
| 98 | |
| 99 | # Add a listener to be called when the trace class is destroyed. |
| 100 | |
| 101 | def add_destruction_listener(self, listener): |
| 102 | |
| 103 | if not callable(listener): |
| 104 | raise TypeError("'listener' parameter is not callable") |
| 105 | |
| 106 | handle = utils._ListenerHandle(self.addr) |
| 107 | |
| 108 | listener_from_native = functools.partial( |
| 109 | _trace_class_destruction_listener_from_native, listener, handle |
| 110 | ) |
| 111 | |
| 112 | fn = native_bt.bt2_trace_class_add_destruction_listener |
| 113 | status, listener_id = fn(self._ptr, listener_from_native) |
| 114 | utils._handle_func_status( |
| 115 | status, 'cannot add destruction listener to trace class object' |
| 116 | ) |
| 117 | |
| 118 | handle._set_listener_id(listener_id) |
| 119 | |
| 120 | return handle |
| 121 | |
| 122 | def remove_destruction_listener(self, listener_handle): |
| 123 | utils._check_type(listener_handle, utils._ListenerHandle) |
| 124 | |
| 125 | if listener_handle._addr != self.addr: |
| 126 | raise ValueError( |
| 127 | 'This trace class destruction listener does not match the trace class object.' |
| 128 | ) |
| 129 | |
| 130 | if listener_handle._listener_id is None: |
| 131 | raise ValueError( |
| 132 | 'This trace class destruction listener was already removed.' |
| 133 | ) |
| 134 | |
| 135 | status = native_bt.trace_class_remove_destruction_listener( |
| 136 | self._ptr, listener_handle._listener_id |
| 137 | ) |
| 138 | utils._handle_func_status(status) |
| 139 | listener_handle._invalidate() |
| 140 | |
| 141 | |
| 142 | class _TraceClass(_TraceClassConst): |
| 143 | _borrow_stream_class_ptr_by_index = staticmethod( |
| 144 | native_bt.trace_class_borrow_stream_class_by_index |
| 145 | ) |
| 146 | _borrow_stream_class_ptr_by_id = staticmethod( |
| 147 | native_bt.trace_class_borrow_stream_class_by_id |
| 148 | ) |
| 149 | _borrow_user_attributes_ptr = staticmethod( |
| 150 | native_bt.trace_class_borrow_user_attributes |
| 151 | ) |
| 152 | _stream_class_pycls = bt2_stream_class._StreamClass |
| 153 | _create_value_from_ptr_and_get_ref = staticmethod( |
| 154 | bt2_value._create_from_ptr_and_get_ref |
| 155 | ) |
| 156 | |
| 157 | # Instantiate a trace of this class. |
| 158 | |
| 159 | def __call__(self, name=None, user_attributes=None, uuid=None, environment=None): |
| 160 | trace_ptr = native_bt.trace_create(self._ptr) |
| 161 | |
| 162 | if trace_ptr is None: |
| 163 | raise bt2._MemoryError('cannot create trace class object') |
| 164 | |
| 165 | trace = bt2_trace._Trace._create_from_ptr(trace_ptr) |
| 166 | |
| 167 | if name is not None: |
| 168 | trace._name = name |
| 169 | |
| 170 | if user_attributes is not None: |
| 171 | trace._user_attributes = user_attributes |
| 172 | |
| 173 | if uuid is not None: |
| 174 | trace._uuid = uuid |
| 175 | |
| 176 | if environment is not None: |
| 177 | for key, value in environment.items(): |
| 178 | trace.environment[key] = value |
| 179 | |
| 180 | return trace |
| 181 | |
| 182 | def create_stream_class( |
| 183 | self, |
| 184 | id=None, |
| 185 | name=None, |
| 186 | user_attributes=None, |
| 187 | packet_context_field_class=None, |
| 188 | event_common_context_field_class=None, |
| 189 | default_clock_class=None, |
| 190 | assigns_automatic_event_class_id=True, |
| 191 | assigns_automatic_stream_id=True, |
| 192 | supports_packets=False, |
| 193 | packets_have_beginning_default_clock_snapshot=False, |
| 194 | packets_have_end_default_clock_snapshot=False, |
| 195 | supports_discarded_events=False, |
| 196 | discarded_events_have_default_clock_snapshots=False, |
| 197 | supports_discarded_packets=False, |
| 198 | discarded_packets_have_default_clock_snapshots=False, |
| 199 | ): |
| 200 | # Validate parameters before we create the object. |
| 201 | bt2_stream_class._StreamClass._validate_create_params( |
| 202 | name, |
| 203 | user_attributes, |
| 204 | packet_context_field_class, |
| 205 | event_common_context_field_class, |
| 206 | default_clock_class, |
| 207 | assigns_automatic_event_class_id, |
| 208 | assigns_automatic_stream_id, |
| 209 | supports_packets, |
| 210 | packets_have_beginning_default_clock_snapshot, |
| 211 | packets_have_end_default_clock_snapshot, |
| 212 | supports_discarded_events, |
| 213 | discarded_events_have_default_clock_snapshots, |
| 214 | supports_discarded_packets, |
| 215 | discarded_packets_have_default_clock_snapshots, |
| 216 | ) |
| 217 | |
| 218 | if self.assigns_automatic_stream_class_id: |
| 219 | if id is not None: |
| 220 | raise ValueError( |
| 221 | 'id provided, but trace class assigns automatic stream class ids' |
| 222 | ) |
| 223 | |
| 224 | sc_ptr = native_bt.stream_class_create(self._ptr) |
| 225 | else: |
| 226 | if id is None: |
| 227 | raise ValueError( |
| 228 | 'id not provided, but trace class does not assign automatic stream class ids' |
| 229 | ) |
| 230 | |
| 231 | utils._check_uint64(id) |
| 232 | sc_ptr = native_bt.stream_class_create_with_id(self._ptr, id) |
| 233 | |
| 234 | sc = bt2_stream_class._StreamClass._create_from_ptr(sc_ptr) |
| 235 | |
| 236 | if name is not None: |
| 237 | sc._name = name |
| 238 | |
| 239 | if user_attributes is not None: |
| 240 | sc._user_attributes = user_attributes |
| 241 | |
| 242 | if event_common_context_field_class is not None: |
| 243 | sc._event_common_context_field_class = event_common_context_field_class |
| 244 | |
| 245 | if default_clock_class is not None: |
| 246 | sc._default_clock_class = default_clock_class |
| 247 | |
| 248 | # call after `sc._default_clock_class` because, if |
| 249 | # `packets_have_beginning_default_clock_snapshot` or |
| 250 | # `packets_have_end_default_clock_snapshot` is true, then this |
| 251 | # stream class needs a default clock class already. |
| 252 | sc._set_supports_packets( |
| 253 | supports_packets, |
| 254 | packets_have_beginning_default_clock_snapshot, |
| 255 | packets_have_end_default_clock_snapshot, |
| 256 | ) |
| 257 | |
| 258 | # call after sc._set_supports_packets() because, if |
| 259 | # `packet_context_field_class` is not `None`, then this stream |
| 260 | # class needs to support packets already. |
| 261 | if packet_context_field_class is not None: |
| 262 | sc._packet_context_field_class = packet_context_field_class |
| 263 | |
| 264 | sc._assigns_automatic_event_class_id = assigns_automatic_event_class_id |
| 265 | sc._assigns_automatic_stream_id = assigns_automatic_stream_id |
| 266 | sc._set_supports_discarded_events( |
| 267 | supports_discarded_events, discarded_events_have_default_clock_snapshots |
| 268 | ) |
| 269 | sc._set_supports_discarded_packets( |
| 270 | supports_discarded_packets, discarded_packets_have_default_clock_snapshots |
| 271 | ) |
| 272 | return sc |
| 273 | |
| 274 | def _user_attributes(self, user_attributes): |
| 275 | value = bt2_value.create_value(user_attributes) |
| 276 | utils._check_type(value, bt2_value.MapValue) |
| 277 | native_bt.trace_class_set_user_attributes(self._ptr, value._ptr) |
| 278 | |
| 279 | _user_attributes = property(fset=_user_attributes) |
| 280 | |
| 281 | def _assigns_automatic_stream_class_id(self, auto_id): |
| 282 | utils._check_bool(auto_id) |
| 283 | return native_bt.trace_class_set_assigns_automatic_stream_class_id( |
| 284 | self._ptr, auto_id |
| 285 | ) |
| 286 | |
| 287 | _assigns_automatic_stream_class_id = property( |
| 288 | fset=_assigns_automatic_stream_class_id |
| 289 | ) |
| 290 | |
| 291 | # Field class creation methods. |
| 292 | |
| 293 | def _check_field_class_create_status(self, ptr, type_name): |
| 294 | if ptr is None: |
| 295 | raise bt2._MemoryError('cannot create {} field class'.format(type_name)) |
| 296 | |
| 297 | @staticmethod |
| 298 | def _set_field_class_user_attrs(fc, user_attributes): |
| 299 | if user_attributes is not None: |
| 300 | fc._user_attributes = user_attributes |
| 301 | |
| 302 | def create_bool_field_class(self, user_attributes=None): |
| 303 | field_class_ptr = native_bt.field_class_bool_create(self._ptr) |
| 304 | self._check_field_class_create_status(field_class_ptr, 'boolean') |
| 305 | fc = bt2_field_class._BoolFieldClass._create_from_ptr(field_class_ptr) |
| 306 | self._set_field_class_user_attrs(fc, user_attributes) |
| 307 | return fc |
| 308 | |
| 309 | def create_bit_array_field_class(self, length, user_attributes=None): |
| 310 | utils._check_uint64(length) |
| 311 | |
| 312 | if length < 1 or length > 64: |
| 313 | raise ValueError( |
| 314 | 'invalid length {}: expecting a value in the [1, 64] range'.format( |
| 315 | length |
| 316 | ) |
| 317 | ) |
| 318 | |
| 319 | field_class_ptr = native_bt.field_class_bit_array_create(self._ptr, length) |
| 320 | self._check_field_class_create_status(field_class_ptr, 'bit array') |
| 321 | fc = bt2_field_class._BitArrayFieldClass._create_from_ptr(field_class_ptr) |
| 322 | self._set_field_class_user_attrs(fc, user_attributes) |
| 323 | return fc |
| 324 | |
| 325 | def _create_integer_field_class( |
| 326 | self, |
| 327 | create_func, |
| 328 | py_cls, |
| 329 | type_name, |
| 330 | field_value_range, |
| 331 | preferred_display_base, |
| 332 | user_attributes, |
| 333 | ): |
| 334 | field_class_ptr = create_func(self._ptr) |
| 335 | self._check_field_class_create_status(field_class_ptr, type_name) |
| 336 | |
| 337 | field_class = py_cls._create_from_ptr(field_class_ptr) |
| 338 | |
| 339 | if field_value_range is not None: |
| 340 | field_class._field_value_range = field_value_range |
| 341 | |
| 342 | if preferred_display_base is not None: |
| 343 | field_class._preferred_display_base = preferred_display_base |
| 344 | |
| 345 | self._set_field_class_user_attrs(field_class, user_attributes) |
| 346 | return field_class |
| 347 | |
| 348 | def create_signed_integer_field_class( |
| 349 | self, field_value_range=None, preferred_display_base=None, user_attributes=None |
| 350 | ): |
| 351 | return self._create_integer_field_class( |
| 352 | native_bt.field_class_integer_signed_create, |
| 353 | bt2_field_class._SignedIntegerFieldClass, |
| 354 | 'signed integer', |
| 355 | field_value_range, |
| 356 | preferred_display_base, |
| 357 | user_attributes, |
| 358 | ) |
| 359 | |
| 360 | def create_unsigned_integer_field_class( |
| 361 | self, field_value_range=None, preferred_display_base=None, user_attributes=None |
| 362 | ): |
| 363 | return self._create_integer_field_class( |
| 364 | native_bt.field_class_integer_unsigned_create, |
| 365 | bt2_field_class._UnsignedIntegerFieldClass, |
| 366 | 'unsigned integer', |
| 367 | field_value_range, |
| 368 | preferred_display_base, |
| 369 | user_attributes, |
| 370 | ) |
| 371 | |
| 372 | def create_signed_enumeration_field_class( |
| 373 | self, field_value_range=None, preferred_display_base=None, user_attributes=None |
| 374 | ): |
| 375 | return self._create_integer_field_class( |
| 376 | native_bt.field_class_enumeration_signed_create, |
| 377 | bt2_field_class._SignedEnumerationFieldClass, |
| 378 | 'signed enumeration', |
| 379 | field_value_range, |
| 380 | preferred_display_base, |
| 381 | user_attributes, |
| 382 | ) |
| 383 | |
| 384 | def create_unsigned_enumeration_field_class( |
| 385 | self, field_value_range=None, preferred_display_base=None, user_attributes=None |
| 386 | ): |
| 387 | return self._create_integer_field_class( |
| 388 | native_bt.field_class_enumeration_unsigned_create, |
| 389 | bt2_field_class._UnsignedEnumerationFieldClass, |
| 390 | 'unsigned enumeration', |
| 391 | field_value_range, |
| 392 | preferred_display_base, |
| 393 | user_attributes, |
| 394 | ) |
| 395 | |
| 396 | def create_single_precision_real_field_class(self, user_attributes=None): |
| 397 | field_class_ptr = native_bt.field_class_real_single_precision_create(self._ptr) |
| 398 | self._check_field_class_create_status(field_class_ptr, 'single-precision real') |
| 399 | |
| 400 | field_class = bt2_field_class._SinglePrecisionRealFieldClass._create_from_ptr( |
| 401 | field_class_ptr |
| 402 | ) |
| 403 | |
| 404 | self._set_field_class_user_attrs(field_class, user_attributes) |
| 405 | |
| 406 | return field_class |
| 407 | |
| 408 | def create_double_precision_real_field_class(self, user_attributes=None): |
| 409 | field_class_ptr = native_bt.field_class_real_double_precision_create(self._ptr) |
| 410 | self._check_field_class_create_status(field_class_ptr, 'double-precision real') |
| 411 | |
| 412 | field_class = bt2_field_class._DoublePrecisionRealFieldClass._create_from_ptr( |
| 413 | field_class_ptr |
| 414 | ) |
| 415 | |
| 416 | self._set_field_class_user_attrs(field_class, user_attributes) |
| 417 | |
| 418 | return field_class |
| 419 | |
| 420 | def create_structure_field_class(self, user_attributes=None): |
| 421 | field_class_ptr = native_bt.field_class_structure_create(self._ptr) |
| 422 | self._check_field_class_create_status(field_class_ptr, 'structure') |
| 423 | fc = bt2_field_class._StructureFieldClass._create_from_ptr(field_class_ptr) |
| 424 | self._set_field_class_user_attrs(fc, user_attributes) |
| 425 | return fc |
| 426 | |
| 427 | def create_string_field_class(self, user_attributes=None): |
| 428 | field_class_ptr = native_bt.field_class_string_create(self._ptr) |
| 429 | self._check_field_class_create_status(field_class_ptr, 'string') |
| 430 | fc = bt2_field_class._StringFieldClass._create_from_ptr(field_class_ptr) |
| 431 | self._set_field_class_user_attrs(fc, user_attributes) |
| 432 | return fc |
| 433 | |
| 434 | def create_static_array_field_class(self, elem_fc, length, user_attributes=None): |
| 435 | utils._check_type(elem_fc, bt2_field_class._FieldClass) |
| 436 | utils._check_uint64(length) |
| 437 | ptr = native_bt.field_class_array_static_create(self._ptr, elem_fc._ptr, length) |
| 438 | self._check_field_class_create_status(ptr, 'static array') |
| 439 | fc = bt2_field_class._StaticArrayFieldClass._create_from_ptr_and_get_ref(ptr) |
| 440 | self._set_field_class_user_attrs(fc, user_attributes) |
| 441 | return fc |
| 442 | |
| 443 | def create_dynamic_array_field_class( |
| 444 | self, elem_fc, length_fc=None, user_attributes=None |
| 445 | ): |
| 446 | utils._check_type(elem_fc, bt2_field_class._FieldClass) |
| 447 | length_fc_ptr = None |
| 448 | |
| 449 | if length_fc is not None: |
| 450 | utils._check_type(length_fc, bt2_field_class._UnsignedIntegerFieldClass) |
| 451 | length_fc_ptr = length_fc._ptr |
| 452 | |
| 453 | ptr = native_bt.field_class_array_dynamic_create( |
| 454 | self._ptr, elem_fc._ptr, length_fc_ptr |
| 455 | ) |
| 456 | self._check_field_class_create_status(ptr, 'dynamic array') |
| 457 | fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr) |
| 458 | self._set_field_class_user_attrs(fc, user_attributes) |
| 459 | return fc |
| 460 | |
| 461 | def create_option_without_selector_field_class( |
| 462 | self, content_fc, user_attributes=None |
| 463 | ): |
| 464 | utils._check_type(content_fc, bt2_field_class._FieldClass) |
| 465 | ptr = native_bt.field_class_option_without_selector_create( |
| 466 | self._ptr, content_fc._ptr |
| 467 | ) |
| 468 | self._check_field_class_create_status(ptr, 'option') |
| 469 | fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr) |
| 470 | self._set_field_class_user_attrs(fc, user_attributes) |
| 471 | return fc |
| 472 | |
| 473 | def create_option_with_bool_selector_field_class( |
| 474 | self, content_fc, selector_fc, selector_is_reversed=False, user_attributes=None |
| 475 | ): |
| 476 | utils._check_type(content_fc, bt2_field_class._FieldClass) |
| 477 | utils._check_bool(selector_is_reversed) |
| 478 | utils._check_type(selector_fc, bt2_field_class._BoolFieldClass) |
| 479 | ptr = native_bt.field_class_option_with_selector_field_bool_create( |
| 480 | self._ptr, content_fc._ptr, selector_fc._ptr |
| 481 | ) |
| 482 | self._check_field_class_create_status(ptr, 'option') |
| 483 | fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr) |
| 484 | self._set_field_class_user_attrs(fc, user_attributes) |
| 485 | fc._selector_is_reversed = selector_is_reversed |
| 486 | return fc |
| 487 | |
| 488 | def create_option_with_integer_selector_field_class( |
| 489 | self, content_fc, selector_fc, ranges, user_attributes=None |
| 490 | ): |
| 491 | utils._check_type(content_fc, bt2_field_class._FieldClass) |
| 492 | utils._check_type(selector_fc, bt2_field_class._IntegerFieldClass) |
| 493 | |
| 494 | if len(ranges) == 0: |
| 495 | raise ValueError('integer range set is empty') |
| 496 | |
| 497 | if isinstance(selector_fc, bt2_field_class._UnsignedIntegerFieldClass): |
| 498 | utils._check_type(ranges, bt2_integer_range_set.UnsignedIntegerRangeSet) |
| 499 | ptr = native_bt.field_class_option_with_selector_field_integer_unsigned_create( |
| 500 | self._ptr, content_fc._ptr, selector_fc._ptr, ranges._ptr |
| 501 | ) |
| 502 | else: |
| 503 | utils._check_type(ranges, bt2_integer_range_set.SignedIntegerRangeSet) |
| 504 | ptr = ( |
| 505 | native_bt.field_class_option_with_selector_field_integer_signed_create( |
| 506 | self._ptr, content_fc._ptr, selector_fc._ptr, ranges._ptr |
| 507 | ) |
| 508 | ) |
| 509 | |
| 510 | self._check_field_class_create_status(ptr, 'option') |
| 511 | fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr) |
| 512 | self._set_field_class_user_attrs(fc, user_attributes) |
| 513 | return fc |
| 514 | |
| 515 | def create_variant_field_class(self, selector_fc=None, user_attributes=None): |
| 516 | selector_fc_ptr = None |
| 517 | |
| 518 | if selector_fc is not None: |
| 519 | utils._check_type(selector_fc, bt2_field_class._IntegerFieldClass) |
| 520 | selector_fc_ptr = selector_fc._ptr |
| 521 | |
| 522 | ptr = native_bt.field_class_variant_create(self._ptr, selector_fc_ptr) |
| 523 | self._check_field_class_create_status(ptr, 'variant') |
| 524 | fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr) |
| 525 | self._set_field_class_user_attrs(fc, user_attributes) |
| 526 | return fc |