Commit | Line | Data |
---|---|---|
85dcce24 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 | ||
f3c9a159 | 23 | from bt2 import utils, native_bt |
85dcce24 | 24 | import bt2 |
3d60267b | 25 | import itertools |
3fb99a22 | 26 | from bt2 import message_iterator as bt2_message_iterator |
3fb99a22 | 27 | from bt2 import port as bt2_port |
c1859f69 | 28 | from bt2 import component as bt2_component |
f3c9a159 SM |
29 | from bt2 import value as bt2_value |
30 | from bt2 import plugin as bt2_plugin | |
85dcce24 | 31 | import datetime |
85dcce24 PP |
32 | from collections import namedtuple |
33 | import numbers | |
34 | ||
35 | ||
3d60267b PP |
36 | # a pair of component and ComponentSpec |
37 | _ComponentAndSpec = namedtuple('_ComponentAndSpec', ['comp', 'spec']) | |
85dcce24 PP |
38 | |
39 | ||
f3c9a159 | 40 | class _BaseComponentSpec: |
c87f23fa SM |
41 | # Base for any component spec that can be passed to |
42 | # TraceCollectionMessageIterator. | |
f3c9a159 SM |
43 | def __init__(self, params, obj, logging_level): |
44 | if logging_level is not None: | |
45 | utils._check_log_level(logging_level) | |
46 | ||
47 | self._params = bt2.create_value(params) | |
48 | self._obj = obj | |
49 | self._logging_level = logging_level | |
50 | ||
51 | @property | |
52 | def params(self): | |
53 | return self._params | |
54 | ||
55 | @property | |
56 | def obj(self): | |
57 | return self._obj | |
58 | ||
59 | @property | |
60 | def logging_level(self): | |
61 | return self._logging_level | |
62 | ||
63 | ||
64 | class ComponentSpec(_BaseComponentSpec): | |
c87f23fa | 65 | # A component spec with a specific component class. |
cfbd7cf3 FD |
66 | def __init__( |
67 | self, | |
c87f23fa | 68 | component_class, |
cfbd7cf3 | 69 | params=None, |
66964f3f | 70 | obj=None, |
c87f23fa | 71 | logging_level=bt2.LoggingLevel.NONE, |
cfbd7cf3 | 72 | ): |
f3c9a159 SM |
73 | if type(params) is str: |
74 | params = {'inputs': [params]} | |
75 | ||
76 | super().__init__(params, obj, logging_level) | |
77 | ||
c87f23fa SM |
78 | is_cc_object = isinstance( |
79 | component_class, (bt2._SourceComponentClass, bt2._FilterComponentClass) | |
80 | ) | |
81 | is_user_cc_type = isinstance( | |
82 | component_class, bt2_component._UserComponentType | |
83 | ) and issubclass( | |
84 | component_class, (bt2._UserSourceComponent, bt2._UserFilterComponent) | |
85 | ) | |
f3c9a159 | 86 | |
c87f23fa SM |
87 | if not is_cc_object and not is_user_cc_type: |
88 | raise TypeError( | |
89 | "'{}' is not a source or filter component class".format( | |
90 | component_class.__class__.__name__ | |
91 | ) | |
92 | ) | |
85dcce24 | 93 | |
c87f23fa | 94 | self._component_class = component_class |
85dcce24 PP |
95 | |
96 | @property | |
c87f23fa SM |
97 | def component_class(self): |
98 | return self._component_class | |
99 | ||
100 | @classmethod | |
101 | def from_named_plugin_and_component_class( | |
102 | cls, | |
103 | plugin_name, | |
104 | component_class_name, | |
105 | params=None, | |
106 | obj=None, | |
107 | logging_level=bt2.LoggingLevel.NONE, | |
108 | ): | |
109 | plugin = bt2.find_plugin(plugin_name) | |
110 | ||
111 | if plugin is None: | |
112 | raise ValueError('no such plugin: {}'.format(plugin_name)) | |
113 | ||
114 | if component_class_name in plugin.source_component_classes: | |
115 | comp_class = plugin.source_component_classes[component_class_name] | |
116 | elif component_class_name in plugin.filter_component_classes: | |
117 | comp_class = plugin.filter_component_classes[component_class_name] | |
118 | else: | |
119 | raise KeyError( | |
120 | 'source or filter component class `{}` not found in plugin `{}`'.format( | |
121 | component_class_name, plugin_name | |
122 | ) | |
123 | ) | |
124 | ||
125 | return cls(comp_class, params, obj, logging_level) | |
85dcce24 | 126 | |
e874da19 | 127 | |
f3c9a159 | 128 | class AutoSourceComponentSpec(_BaseComponentSpec): |
c87f23fa | 129 | # A component spec that does automatic source discovery. |
f3c9a159 SM |
130 | _no_obj = object() |
131 | ||
132 | def __init__(self, input, params=None, obj=_no_obj, logging_level=None): | |
133 | super().__init__(params, obj, logging_level) | |
134 | self._input = input | |
85dcce24 | 135 | |
66964f3f | 136 | @property |
f3c9a159 SM |
137 | def input(self): |
138 | return self._input | |
139 | ||
140 | ||
141 | def _auto_discover_source_component_specs(auto_source_comp_specs, plugin_set): | |
142 | # Transform a list of `AutoSourceComponentSpec` in a list of `ComponentSpec` | |
143 | # using the automatic source discovery mechanism. | |
144 | inputs = bt2.ArrayValue([spec.input for spec in auto_source_comp_specs]) | |
145 | ||
146 | if plugin_set is None: | |
147 | plugin_set = bt2.find_plugins() | |
148 | else: | |
149 | utils._check_type(plugin_set, bt2_plugin._PluginSet) | |
150 | ||
151 | res_ptr = native_bt.bt2_auto_discover_source_components( | |
152 | inputs._ptr, plugin_set._ptr | |
153 | ) | |
154 | ||
155 | if res_ptr is None: | |
156 | raise bt2._MemoryError('cannot auto discover source components') | |
157 | ||
158 | res = bt2_value._create_from_ptr(res_ptr) | |
159 | ||
160 | assert type(res) == bt2.MapValue | |
161 | assert 'status' in res | |
162 | ||
163 | status = res['status'] | |
164 | utils._handle_func_status(status, 'cannot auto-discover source components') | |
165 | ||
166 | comp_specs = [] | |
167 | comp_specs_raw = res['results'] | |
168 | assert type(comp_specs_raw) == bt2.ArrayValue | |
169 | ||
39b351f9 SM |
170 | used_input_indices = set() |
171 | ||
f3c9a159 SM |
172 | for comp_spec_raw in comp_specs_raw: |
173 | assert type(comp_spec_raw) == bt2.ArrayValue | |
174 | assert len(comp_spec_raw) == 4 | |
175 | ||
176 | plugin_name = comp_spec_raw[0] | |
177 | assert type(plugin_name) == bt2.StringValue | |
178 | plugin_name = str(plugin_name) | |
179 | ||
180 | class_name = comp_spec_raw[1] | |
181 | assert type(class_name) == bt2.StringValue | |
182 | class_name = str(class_name) | |
183 | ||
184 | comp_inputs = comp_spec_raw[2] | |
185 | assert type(comp_inputs) == bt2.ArrayValue | |
186 | ||
187 | comp_orig_indices = comp_spec_raw[3] | |
188 | assert type(comp_orig_indices) | |
189 | ||
190 | params = bt2.MapValue() | |
191 | logging_level = bt2.LoggingLevel.NONE | |
192 | obj = None | |
193 | ||
194 | # Compute `params` for this component by piling up params given to all | |
195 | # AutoSourceComponentSpec objects that contributed in the instantiation | |
196 | # of this component. | |
197 | # | |
198 | # The effective log level for a component is the last one specified | |
199 | # across the AutoSourceComponentSpec that contributed in its | |
200 | # instantiation. | |
201 | for idx in comp_orig_indices: | |
202 | orig_spec = auto_source_comp_specs[idx] | |
203 | ||
204 | if orig_spec.params is not None: | |
205 | params.update(orig_spec.params) | |
206 | ||
207 | if orig_spec.logging_level is not None: | |
208 | logging_level = orig_spec.logging_level | |
209 | ||
210 | if orig_spec.obj is not AutoSourceComponentSpec._no_obj: | |
211 | obj = orig_spec.obj | |
212 | ||
39b351f9 SM |
213 | used_input_indices.add(int(idx)) |
214 | ||
f3c9a159 SM |
215 | params['inputs'] = comp_inputs |
216 | ||
217 | comp_specs.append( | |
c87f23fa | 218 | ComponentSpec.from_named_plugin_and_component_class( |
f3c9a159 SM |
219 | plugin_name, |
220 | class_name, | |
221 | params=params, | |
222 | obj=obj, | |
223 | logging_level=logging_level, | |
224 | ) | |
225 | ) | |
226 | ||
39b351f9 SM |
227 | if len(used_input_indices) != len(inputs): |
228 | unused_input_indices = set(range(len(inputs))) - used_input_indices | |
229 | unused_input_indices = sorted(unused_input_indices) | |
230 | unused_inputs = [str(inputs[x]) for x in unused_input_indices] | |
231 | ||
232 | msg = ( | |
233 | 'Some auto source component specs did not produce any component: ' | |
234 | + ', '.join(unused_inputs) | |
235 | ) | |
236 | raise RuntimeError(msg) | |
237 | ||
f3c9a159 | 238 | return comp_specs |
66964f3f | 239 | |
85dcce24 PP |
240 | |
241 | # datetime.datetime or integral to nanoseconds | |
242 | def _get_ns(obj): | |
243 | if obj is None: | |
244 | return | |
245 | ||
246 | if isinstance(obj, numbers.Real): | |
247 | # consider that it's already in seconds | |
248 | s = obj | |
249 | elif isinstance(obj, datetime.datetime): | |
250 | # s -> ns | |
251 | s = obj.timestamp() | |
252 | else: | |
cfbd7cf3 FD |
253 | raise TypeError( |
254 | '"{}" is not an integral number or a datetime.datetime object'.format(obj) | |
255 | ) | |
85dcce24 PP |
256 | |
257 | return int(s * 1e9) | |
258 | ||
259 | ||
c1859f69 PP |
260 | class _TraceCollectionMessageIteratorProxySink(bt2_component._UserSinkComponent): |
261 | def __init__(self, params, msg_list): | |
262 | assert type(msg_list) is list | |
263 | self._msg_list = msg_list | |
264 | self._add_input_port('in') | |
265 | ||
266 | def _user_graph_is_configured(self): | |
267 | self._msg_iter = self._create_input_port_message_iterator( | |
268 | self._input_ports['in'] | |
269 | ) | |
270 | ||
271 | def _user_consume(self): | |
272 | assert self._msg_list[0] is None | |
273 | self._msg_list[0] = next(self._msg_iter) | |
274 | ||
275 | ||
3fb99a22 | 276 | class TraceCollectionMessageIterator(bt2_message_iterator._MessageIterator): |
cfbd7cf3 FD |
277 | def __init__( |
278 | self, | |
279 | source_component_specs, | |
280 | filter_component_specs=None, | |
281 | stream_intersection_mode=False, | |
282 | begin=None, | |
283 | end=None, | |
f3c9a159 | 284 | plugin_set=None, |
cfbd7cf3 | 285 | ): |
85dcce24 PP |
286 | utils._check_bool(stream_intersection_mode) |
287 | self._stream_intersection_mode = stream_intersection_mode | |
288 | self._begin_ns = _get_ns(begin) | |
289 | self._end_ns = _get_ns(end) | |
c1859f69 | 290 | self._msg_list = [None] |
3d60267b | 291 | |
f3c9a159 SM |
292 | # If a single item is provided, convert to a list. |
293 | if type(source_component_specs) in ( | |
294 | ComponentSpec, | |
295 | AutoSourceComponentSpec, | |
296 | str, | |
297 | ): | |
3d60267b PP |
298 | source_component_specs = [source_component_specs] |
299 | ||
f3c9a159 SM |
300 | # Convert any string to an AutoSourceComponentSpec. |
301 | def str_to_auto(item): | |
302 | if type(item) is str: | |
303 | item = AutoSourceComponentSpec(item) | |
304 | ||
305 | return item | |
306 | ||
307 | source_component_specs = [str_to_auto(s) for s in source_component_specs] | |
308 | ||
3d60267b PP |
309 | if type(filter_component_specs) is ComponentSpec: |
310 | filter_component_specs = [filter_component_specs] | |
311 | elif filter_component_specs is None: | |
312 | filter_component_specs = [] | |
313 | ||
f3c9a159 SM |
314 | self._validate_source_component_specs(source_component_specs) |
315 | self._validate_filter_component_specs(filter_component_specs) | |
316 | ||
317 | # Pass any `ComponentSpec` instance as-is. | |
318 | self._src_comp_specs = [ | |
319 | spec for spec in source_component_specs if type(spec) is ComponentSpec | |
320 | ] | |
321 | ||
322 | # Convert any `AutoSourceComponentSpec` in concrete `ComponentSpec` instances. | |
323 | auto_src_comp_specs = [ | |
324 | spec | |
325 | for spec in source_component_specs | |
326 | if type(spec) is AutoSourceComponentSpec | |
327 | ] | |
328 | self._src_comp_specs += _auto_discover_source_component_specs( | |
329 | auto_src_comp_specs, plugin_set | |
330 | ) | |
331 | ||
3d60267b | 332 | self._flt_comp_specs = filter_component_specs |
85dcce24 PP |
333 | self._next_suffix = 1 |
334 | self._connect_ports = False | |
335 | ||
3d60267b | 336 | # lists of _ComponentAndSpec |
85dcce24 | 337 | self._src_comps_and_specs = [] |
3d60267b | 338 | self._flt_comps_and_specs = [] |
85dcce24 | 339 | |
85dcce24 PP |
340 | self._build_graph() |
341 | ||
f3c9a159 SM |
342 | def _validate_source_component_specs(self, comp_specs): |
343 | for comp_spec in comp_specs: | |
344 | if ( | |
345 | type(comp_spec) is not ComponentSpec | |
346 | and type(comp_spec) is not AutoSourceComponentSpec | |
347 | ): | |
348 | raise TypeError( | |
349 | '"{}" object is not a ComponentSpec or AutoSourceComponentSpec'.format( | |
350 | type(comp_spec) | |
351 | ) | |
352 | ) | |
353 | ||
354 | def _validate_filter_component_specs(self, comp_specs): | |
3d60267b PP |
355 | for comp_spec in comp_specs: |
356 | if type(comp_spec) is not ComponentSpec: | |
cfbd7cf3 FD |
357 | raise TypeError( |
358 | '"{}" object is not a ComponentSpec'.format(type(comp_spec)) | |
359 | ) | |
85dcce24 PP |
360 | |
361 | def __next__(self): | |
c1859f69 PP |
362 | assert self._msg_list[0] is None |
363 | self._graph.run_once() | |
364 | msg = self._msg_list[0] | |
365 | assert msg is not None | |
366 | self._msg_list[0] = None | |
367 | return msg | |
85dcce24 | 368 | |
907f2b70 | 369 | def _create_stream_intersection_trimmer(self, component, port): |
85dcce24 | 370 | # find the original parameters specified by the user to create |
73760435 | 371 | # this port's component to get the `inputs` parameter |
85dcce24 | 372 | for src_comp_and_spec in self._src_comps_and_specs: |
907f2b70 | 373 | if component == src_comp_and_spec.comp: |
85dcce24 PP |
374 | break |
375 | ||
376 | try: | |
73760435 | 377 | inputs = src_comp_and_spec.spec.params['inputs'] |
907f2b70 | 378 | except Exception as e: |
ce4923b0 | 379 | raise ValueError( |
73760435 | 380 | 'all source components must be created with an "inputs" parameter in stream intersection mode' |
cfbd7cf3 | 381 | ) from e |
85dcce24 | 382 | |
73760435 | 383 | params = {'inputs': inputs} |
85dcce24 | 384 | |
1a29b831 PP |
385 | # query the port's component for the `babeltrace.trace-info` |
386 | # object which contains the stream intersection range for each | |
387 | # exposed trace | |
3c729b9a | 388 | query_exec = bt2.QueryExecutor( |
1a29b831 | 389 | src_comp_and_spec.comp.cls, 'babeltrace.trace-info', params |
cfbd7cf3 | 390 | ) |
3c729b9a | 391 | trace_info_res = query_exec.query() |
85dcce24 PP |
392 | begin = None |
393 | end = None | |
394 | ||
a38d7650 | 395 | # find the trace info for this port's trace |
87b768aa PP |
396 | try: |
397 | for trace_info in trace_info_res: | |
a38d7650 SM |
398 | for stream in trace_info['streams']: |
399 | if stream['port-name'] == port.name: | |
400 | range_ns = trace_info['intersection-range-ns'] | |
401 | begin = range_ns['begin'] | |
402 | end = range_ns['end'] | |
403 | break | |
907f2b70 | 404 | except Exception: |
87b768aa | 405 | pass |
85dcce24 PP |
406 | |
407 | if begin is None or end is None: | |
ce4923b0 | 408 | raise RuntimeError( |
cfbd7cf3 FD |
409 | 'cannot find stream intersection range for port "{}"'.format(port.name) |
410 | ) | |
85dcce24 | 411 | |
907f2b70 | 412 | name = 'trimmer-{}-{}'.format(src_comp_and_spec.comp.name, port.name) |
85dcce24 PP |
413 | return self._create_trimmer(begin, end, name) |
414 | ||
415 | def _create_muxer(self): | |
416 | plugin = bt2.find_plugin('utils') | |
417 | ||
418 | if plugin is None: | |
ce4923b0 | 419 | raise RuntimeError('cannot find "utils" plugin (needed for the muxer)') |
85dcce24 PP |
420 | |
421 | if 'muxer' not in plugin.filter_component_classes: | |
ce4923b0 | 422 | raise RuntimeError( |
cfbd7cf3 FD |
423 | 'cannot find "muxer" filter component class in "utils" plugin' |
424 | ) | |
85dcce24 PP |
425 | |
426 | comp_cls = plugin.filter_component_classes['muxer'] | |
427 | return self._graph.add_component(comp_cls, 'muxer') | |
428 | ||
907f2b70 | 429 | def _create_trimmer(self, begin_ns, end_ns, name): |
85dcce24 PP |
430 | plugin = bt2.find_plugin('utils') |
431 | ||
432 | if plugin is None: | |
ce4923b0 | 433 | raise RuntimeError('cannot find "utils" plugin (needed for the trimmer)') |
85dcce24 PP |
434 | |
435 | if 'trimmer' not in plugin.filter_component_classes: | |
ce4923b0 | 436 | raise RuntimeError( |
cfbd7cf3 FD |
437 | 'cannot find "trimmer" filter component class in "utils" plugin' |
438 | ) | |
85dcce24 PP |
439 | |
440 | params = {} | |
441 | ||
907f2b70 SM |
442 | def ns_to_string(ns): |
443 | s_part = ns // 1000000000 | |
444 | ns_part = ns % 1000000000 | |
445 | return '{}.{:09d}'.format(s_part, ns_part) | |
85dcce24 | 446 | |
907f2b70 SM |
447 | if begin_ns is not None: |
448 | params['begin'] = ns_to_string(begin_ns) | |
449 | ||
450 | if end_ns is not None: | |
451 | params['end'] = ns_to_string(end_ns) | |
85dcce24 PP |
452 | |
453 | comp_cls = plugin.filter_component_classes['trimmer'] | |
454 | return self._graph.add_component(comp_cls, name, params) | |
455 | ||
c87f23fa SM |
456 | def _get_unique_comp_name(self, comp_cls): |
457 | name = comp_cls.name | |
cfbd7cf3 FD |
458 | comps_and_specs = itertools.chain( |
459 | self._src_comps_and_specs, self._flt_comps_and_specs | |
460 | ) | |
85dcce24 | 461 | |
3d60267b | 462 | if name in [comp_and_spec.comp.name for comp_and_spec in comps_and_specs]: |
85dcce24 PP |
463 | name += '-{}'.format(self._next_suffix) |
464 | self._next_suffix += 1 | |
465 | ||
466 | return name | |
467 | ||
c87f23fa SM |
468 | def _create_comp(self, comp_spec): |
469 | comp_cls = comp_spec.component_class | |
470 | name = self._get_unique_comp_name(comp_cls) | |
cfbd7cf3 | 471 | comp = self._graph.add_component( |
66964f3f | 472 | comp_cls, name, comp_spec.params, comp_spec.obj, comp_spec.logging_level |
cfbd7cf3 | 473 | ) |
85dcce24 PP |
474 | return comp |
475 | ||
476 | def _get_free_muxer_input_port(self): | |
477 | for port in self._muxer_comp.input_ports.values(): | |
478 | if not port.is_connected: | |
479 | return port | |
480 | ||
907f2b70 | 481 | def _connect_src_comp_port(self, component, port): |
85dcce24 PP |
482 | # if this trace collection iterator is in stream intersection |
483 | # mode, we need this connection: | |
484 | # | |
485 | # port -> trimmer -> muxer | |
486 | # | |
487 | # otherwise, simply: | |
488 | # | |
489 | # port -> muxer | |
490 | if self._stream_intersection_mode: | |
907f2b70 | 491 | trimmer_comp = self._create_stream_intersection_trimmer(component, port) |
85dcce24 PP |
492 | self._graph.connect_ports(port, trimmer_comp.input_ports['in']) |
493 | port_to_muxer = trimmer_comp.output_ports['out'] | |
494 | else: | |
495 | port_to_muxer = port | |
496 | ||
497 | self._graph.connect_ports(port_to_muxer, self._get_free_muxer_input_port()) | |
498 | ||
907f2b70 | 499 | def _graph_port_added(self, component, port): |
85dcce24 PP |
500 | if not self._connect_ports: |
501 | return | |
502 | ||
3fb99a22 | 503 | if type(port) is bt2_port._InputPort: |
85dcce24 PP |
504 | return |
505 | ||
907f2b70 | 506 | if component not in [comp.comp for comp in self._src_comps_and_specs]: |
85dcce24 PP |
507 | # do not care about non-source components (muxer, trimmer, etc.) |
508 | return | |
509 | ||
907f2b70 | 510 | self._connect_src_comp_port(component, port) |
85dcce24 | 511 | |
2080bf80 | 512 | def _get_greatest_operative_mip_version(self): |
c87f23fa | 513 | def append_comp_specs_descriptors(descriptors, comp_specs): |
2080bf80 | 514 | for comp_spec in comp_specs: |
2080bf80 | 515 | descriptors.append( |
c87f23fa SM |
516 | bt2.ComponentDescriptor( |
517 | comp_spec.component_class, comp_spec.params, comp_spec.obj | |
518 | ) | |
2080bf80 PP |
519 | ) |
520 | ||
521 | descriptors = [] | |
c87f23fa SM |
522 | append_comp_specs_descriptors(descriptors, self._src_comp_specs) |
523 | append_comp_specs_descriptors(descriptors, self._flt_comp_specs) | |
2080bf80 PP |
524 | |
525 | if self._stream_intersection_mode: | |
526 | # we also need at least one `flt.utils.trimmer` component | |
c87f23fa SM |
527 | comp_spec = ComponentSpec.from_named_plugin_and_component_class( |
528 | 'utils', 'trimmer' | |
529 | ) | |
530 | append_comp_specs_descriptors(descriptors, [comp_spec]) | |
2080bf80 PP |
531 | |
532 | mip_version = bt2.get_greatest_operative_mip_version(descriptors) | |
533 | ||
534 | if mip_version is None: | |
535 | msg = 'failed to find an operative message interchange protocol version (components are not interoperable)' | |
536 | raise RuntimeError(msg) | |
537 | ||
538 | return mip_version | |
539 | ||
85dcce24 | 540 | def _build_graph(self): |
2080bf80 | 541 | self._graph = bt2.Graph(self._get_greatest_operative_mip_version()) |
907f2b70 | 542 | self._graph.add_port_added_listener(self._graph_port_added) |
85dcce24 PP |
543 | self._muxer_comp = self._create_muxer() |
544 | ||
545 | if self._begin_ns is not None or self._end_ns is not None: | |
cfbd7cf3 FD |
546 | trimmer_comp = self._create_trimmer(self._begin_ns, self._end_ns, 'trimmer') |
547 | self._graph.connect_ports( | |
548 | self._muxer_comp.output_ports['out'], trimmer_comp.input_ports['in'] | |
549 | ) | |
c1859f69 | 550 | last_flt_out_port = trimmer_comp.output_ports['out'] |
85dcce24 | 551 | else: |
c1859f69 | 552 | last_flt_out_port = self._muxer_comp.output_ports['out'] |
85dcce24 | 553 | |
3d60267b PP |
554 | # create extra filter components (chained) |
555 | for comp_spec in self._flt_comp_specs: | |
c87f23fa | 556 | comp = self._create_comp(comp_spec) |
3d60267b PP |
557 | self._flt_comps_and_specs.append(_ComponentAndSpec(comp, comp_spec)) |
558 | ||
559 | # connect the extra filter chain | |
560 | for comp_and_spec in self._flt_comps_and_specs: | |
561 | in_port = list(comp_and_spec.comp.input_ports.values())[0] | |
562 | out_port = list(comp_and_spec.comp.output_ports.values())[0] | |
c1859f69 PP |
563 | self._graph.connect_ports(last_flt_out_port, in_port) |
564 | last_flt_out_port = out_port | |
3d60267b | 565 | |
85dcce24 PP |
566 | # Here we create the components, self._graph_port_added() is |
567 | # called when they add ports, but the callback returns early | |
568 | # because self._connect_ports is False. This is because the | |
569 | # self._graph_port_added() could not find the associated source | |
570 | # component specification in self._src_comps_and_specs because | |
571 | # it does not exist yet (it needs the created component to | |
572 | # exist). | |
573 | for comp_spec in self._src_comp_specs: | |
c87f23fa | 574 | comp = self._create_comp(comp_spec) |
3d60267b | 575 | self._src_comps_and_specs.append(_ComponentAndSpec(comp, comp_spec)) |
85dcce24 PP |
576 | |
577 | # Now we connect the ports which exist at this point. We allow | |
578 | # self._graph_port_added() to automatically connect _new_ ports. | |
579 | self._connect_ports = True | |
580 | ||
581 | for comp_and_spec in self._src_comps_and_specs: | |
582 | # Keep a separate list because comp_and_spec.output_ports | |
583 | # could change during the connection of one of its ports. | |
584 | # Any new port is handled by self._graph_port_added(). | |
585 | out_ports = [port for port in comp_and_spec.comp.output_ports.values()] | |
586 | ||
587 | for out_port in out_ports: | |
907f2b70 | 588 | if out_port.is_connected: |
85dcce24 PP |
589 | continue |
590 | ||
907f2b70 | 591 | self._connect_src_comp_port(comp_and_spec.comp, out_port) |
85dcce24 | 592 | |
c1859f69 PP |
593 | # Add the proxy sink, passing our message list to share consumed |
594 | # messages with this trace collection message iterator. | |
595 | sink = self._graph.add_component( | |
596 | _TraceCollectionMessageIteratorProxySink, 'proxy-sink', obj=self._msg_list | |
597 | ) | |
598 | sink_in_port = sink.input_ports['in'] | |
599 | ||
600 | # connect last filter to proxy sink | |
601 | self._graph.connect_ports(last_flt_out_port, sink_in_port) |