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4212232c PP |
1 | /* |
2 | * The MIT License (MIT) | |
3 | * | |
4 | * Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com> | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include "logging/comp-logging.h" | |
66964f3f | 26 | #include "compat/glib.h" |
4212232c PP |
27 | |
28 | /* | |
29 | * This hash table associates a BT component class object address to a | |
30 | * user-defined Python class (PyObject *). The keys and values are NOT | |
31 | * owned by this hash table. The Python class objects are owned by the | |
32 | * Python module, which should not be unloaded until it is not possible | |
33 | * to create a user Python component anyway. | |
34 | * | |
35 | * This hash table is written to when a user-defined Python component | |
36 | * class is created by one of the bt_bt2_component_class_*_create() | |
37 | * functions. | |
38 | * | |
39 | * This function is read from when a user calls bt_component_create() | |
40 | * with a component class pointer created by one of the functions above. | |
41 | * In this case, the original Python class needs to be found to | |
42 | * instantiate it and associate the created Python component object with | |
43 | * a BT component object instance. | |
44 | */ | |
45 | ||
46 | static GHashTable *bt_cc_ptr_to_py_cls; | |
47 | ||
ab1cea3f PP |
48 | static |
49 | void bt_bt2_unregister_cc_ptr_to_py_cls(const bt_component_class *comp_cls) | |
50 | { | |
51 | gboolean existed; | |
52 | ||
53 | if (!bt_cc_ptr_to_py_cls) { | |
54 | return; | |
55 | } | |
56 | ||
57 | existed = g_hash_table_remove(bt_cc_ptr_to_py_cls, comp_cls); | |
58 | BT_ASSERT(existed); | |
59 | } | |
60 | ||
4212232c PP |
61 | static |
62 | void register_cc_ptr_to_py_cls(struct bt_component_class *bt_cc, | |
63 | PyObject *py_cls) | |
64 | { | |
65 | if (!bt_cc_ptr_to_py_cls) { | |
66 | /* | |
67 | * Lazy-initializing this GHashTable because GLib | |
68 | * might not be initialized yet and it needs to be | |
69 | * before we call g_hash_table_new() | |
70 | */ | |
71 | BT_LOGD_STR("Creating native component class to Python component class hash table."); | |
72 | bt_cc_ptr_to_py_cls = g_hash_table_new(g_direct_hash, g_direct_equal); | |
73 | BT_ASSERT(bt_cc_ptr_to_py_cls); | |
74 | } | |
75 | ||
76 | g_hash_table_insert(bt_cc_ptr_to_py_cls, (gpointer) bt_cc, | |
77 | (gpointer) py_cls); | |
78 | } | |
79 | ||
80 | static | |
81 | PyObject *lookup_cc_ptr_to_py_cls(const bt_component_class *bt_cc) | |
82 | { | |
83 | if (!bt_cc_ptr_to_py_cls) { | |
84 | BT_LOGW("Cannot look up Python component class because hash table is NULL: " | |
85 | "comp-cls-addr=%p", bt_cc); | |
86 | return NULL; | |
87 | } | |
88 | ||
89 | return (PyObject *) g_hash_table_lookup(bt_cc_ptr_to_py_cls, | |
90 | (gconstpointer) bt_cc); | |
91 | } | |
92 | ||
4212232c PP |
93 | /* Library destructor */ |
94 | ||
95 | __attribute__((destructor)) | |
96 | static | |
97 | void native_comp_class_dtor(void) { | |
98 | /* Destroy component class association hash table */ | |
99 | if (bt_cc_ptr_to_py_cls) { | |
100 | BT_LOGD_STR("Destroying native component class to Python component class hash table."); | |
101 | g_hash_table_destroy(bt_cc_ptr_to_py_cls); | |
ab1cea3f | 102 | bt_cc_ptr_to_py_cls = NULL; |
4212232c PP |
103 | } |
104 | } | |
105 | ||
4212232c | 106 | static inline |
84e438af SM |
107 | int py_exc_to_status_clear( |
108 | bt_self_component_class *self_component_class, | |
4212232c PP |
109 | bt_self_component *self_component, |
110 | bt_self_message_iterator *self_message_iterator, | |
111 | const char *module_name, int active_log_level) | |
112 | { | |
6dbc1938 | 113 | int status; |
4212232c PP |
114 | PyObject *exc = PyErr_Occurred(); |
115 | ||
116 | if (!exc) { | |
6dbc1938 | 117 | status = __BT_FUNC_STATUS_OK; |
4212232c PP |
118 | goto end; |
119 | } | |
120 | ||
121 | if (PyErr_GivenExceptionMatches(exc, | |
122 | py_mod_bt2_exc_try_again_type)) { | |
123 | status = __BT_FUNC_STATUS_AGAIN; | |
124 | } else if (PyErr_GivenExceptionMatches(exc, | |
125 | py_mod_bt2_exc_stop_type)) { | |
126 | status = __BT_FUNC_STATUS_END; | |
127 | } else if (PyErr_GivenExceptionMatches(exc, | |
128 | py_mod_bt2_exc_unknown_object_type)) { | |
129 | status = __BT_FUNC_STATUS_UNKNOWN_OBJECT; | |
130 | } else { | |
131 | /* | |
132 | * Unknown exception: convert to general error. | |
133 | * | |
134 | * Because we only want to fetch the log level when | |
135 | * we actually get an exception, and not systematically | |
136 | * when we call py_exc_to_status() (as py_exc_to_status() | |
137 | * can return `__BT_FUNC_STATUS_OK`), we get it here | |
138 | * depending on the actor's type. | |
139 | */ | |
140 | if (self_component) { | |
141 | active_log_level = get_self_component_log_level( | |
142 | self_component); | |
143 | } else if (self_message_iterator) { | |
144 | active_log_level = get_self_message_iterator_log_level( | |
145 | self_message_iterator); | |
146 | } | |
147 | ||
148 | BT_ASSERT(active_log_level != -1); | |
84e438af | 149 | log_exception_and_maybe_append_cause(BT_LOG_WARNING, |
4212232c PP |
150 | active_log_level, true, |
151 | self_component_class, self_component, | |
152 | self_message_iterator, module_name); | |
153 | ||
154 | if (PyErr_GivenExceptionMatches(exc, | |
155 | py_mod_bt2_exc_memory_error)) { | |
156 | status = __BT_FUNC_STATUS_MEMORY_ERROR; | |
157 | } else { | |
158 | status = __BT_FUNC_STATUS_ERROR; | |
159 | } | |
160 | } | |
161 | ||
162 | end: | |
163 | PyErr_Clear(); | |
164 | return status; | |
165 | } | |
166 | ||
167 | static | |
84e438af | 168 | int py_exc_to_status_component_class_clear( |
4212232c PP |
169 | bt_self_component_class *self_component_class, |
170 | int active_log_level) | |
171 | { | |
84e438af | 172 | return py_exc_to_status_clear(self_component_class, NULL, NULL, NULL, |
4212232c PP |
173 | active_log_level); |
174 | } | |
175 | ||
176 | static | |
84e438af | 177 | int py_exc_to_status_component_clear(bt_self_component *self_component) |
4212232c | 178 | { |
84e438af | 179 | return py_exc_to_status_clear(NULL, self_component, NULL, NULL, -1); |
4212232c PP |
180 | } |
181 | ||
182 | static | |
84e438af | 183 | int py_exc_to_status_message_iterator_clear( |
4212232c PP |
184 | bt_self_message_iterator *self_message_iterator) |
185 | { | |
84e438af | 186 | return py_exc_to_status_clear(NULL, NULL, self_message_iterator, NULL, -1); |
4212232c PP |
187 | } |
188 | ||
66964f3f PP |
189 | static |
190 | bool bt_bt2_is_python_component_class(const bt_component_class *comp_cls) | |
191 | { | |
192 | return bt_g_hash_table_contains(bt_cc_ptr_to_py_cls, comp_cls); | |
193 | } | |
194 | ||
4212232c PP |
195 | /* Component class proxy methods (delegate to the attached Python object) */ |
196 | ||
197 | static | |
21a9f056 | 198 | bt_component_class_initialize_method_status component_class_init( |
4212232c PP |
199 | bt_self_component *self_component, |
200 | void *self_component_v, | |
201 | swig_type_info *self_comp_cls_type_swig_type, | |
202 | const bt_value *params, | |
203 | void *init_method_data) | |
204 | { | |
205 | const bt_component *component = bt_self_component_as_component(self_component); | |
206 | const bt_component_class *component_class = bt_component_borrow_class_const(component); | |
6dbc1938 | 207 | bt_component_class_initialize_method_status status; |
4212232c PP |
208 | PyObject *py_cls = NULL; |
209 | PyObject *py_comp = NULL; | |
210 | PyObject *py_params_ptr = NULL; | |
211 | PyObject *py_comp_ptr = NULL; | |
212 | bt_logging_level log_level = get_self_component_log_level( | |
213 | self_component); | |
214 | ||
4212232c PP |
215 | BT_ASSERT(self_component); |
216 | BT_ASSERT(self_component_v); | |
217 | BT_ASSERT(self_comp_cls_type_swig_type); | |
218 | ||
219 | /* | |
220 | * Get the user-defined Python class which created this | |
221 | * component's class in the first place (borrowed | |
222 | * reference). | |
223 | */ | |
224 | py_cls = lookup_cc_ptr_to_py_cls(component_class); | |
225 | if (!py_cls) { | |
226 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
227 | "Cannot find Python class associated to native component class: " | |
228 | "comp-cls-addr=%p", component_class); | |
229 | goto error; | |
230 | } | |
231 | ||
232 | /* Parameters pointer -> SWIG pointer Python object */ | |
233 | py_params_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(params), | |
234 | SWIGTYPE_p_bt_value, 0); | |
235 | if (!py_params_ptr) { | |
236 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
237 | "Failed to create a SWIG pointer object."); | |
238 | goto error; | |
239 | } | |
240 | ||
241 | py_comp_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_component_v), | |
242 | self_comp_cls_type_swig_type, 0); | |
243 | if (!py_comp_ptr) { | |
244 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
245 | "Failed to create a SWIG pointer object."); | |
246 | goto error; | |
247 | } | |
248 | ||
249 | /* | |
250 | * Do the equivalent of this: | |
251 | * | |
66964f3f PP |
252 | * py_comp = py_cls._bt_init_from_native(py_comp_ptr, |
253 | * py_params_ptr, init_method_data ? init_method_data : Py_None) | |
4212232c PP |
254 | * |
255 | * _UserComponentType._bt_init_from_native() calls the Python | |
256 | * component object's __init__() function. | |
66964f3f PP |
257 | * |
258 | * We don't take any reference on `init_method_data` which, if | |
259 | * not `NULL`, is assumed to be a `PyObject *`: the user's | |
260 | * __init__() function will eventually take a reference if | |
261 | * needed. If `init_method_data` is `NULL`, then we pass | |
262 | * `Py_None` as the initialization's Python object. | |
4212232c PP |
263 | */ |
264 | py_comp = PyObject_CallMethod(py_cls, | |
66964f3f PP |
265 | "_bt_init_from_native", "(OOO)", py_comp_ptr, py_params_ptr, |
266 | init_method_data ? init_method_data : Py_None); | |
4212232c PP |
267 | if (!py_comp) { |
268 | BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_component, | |
269 | "Failed to call Python class's _bt_init_from_native() method: " | |
270 | "py-cls-addr=%p", py_cls); | |
84e438af | 271 | status = py_exc_to_status_component_clear(self_component); |
4212232c PP |
272 | goto end; |
273 | } | |
274 | ||
275 | /* | |
276 | * Our user Python component object is now fully created and | |
277 | * initialized by the user. Since we just created it, this | |
278 | * native component is its only (persistent) owner. | |
279 | */ | |
280 | bt_self_component_set_data(self_component, py_comp); | |
281 | py_comp = NULL; | |
6dbc1938 SM |
282 | |
283 | status = BT_COMPONENT_CLASS_INITIALIZE_METHOD_STATUS_OK; | |
284 | ||
4212232c PP |
285 | goto end; |
286 | ||
287 | error: | |
6dbc1938 SM |
288 | /* This error path is for non-Python errors only. */ |
289 | status = BT_COMPONENT_CLASS_INITIALIZE_METHOD_STATUS_ERROR; | |
4212232c PP |
290 | |
291 | end: | |
6dbc1938 | 292 | BT_ASSERT(!PyErr_Occurred()); |
4212232c PP |
293 | Py_XDECREF(py_comp); |
294 | Py_XDECREF(py_params_ptr); | |
295 | Py_XDECREF(py_comp_ptr); | |
296 | return status; | |
297 | } | |
298 | ||
fd57054b PP |
299 | static |
300 | bt_component_class_get_supported_mip_versions_method_status | |
301 | component_class_get_supported_mip_versions( | |
302 | const bt_component_class *component_class, | |
303 | bt_self_component_class *self_component_class, | |
304 | const bt_value *params, void *init_method_data, | |
305 | bt_logging_level log_level, | |
306 | bt_integer_range_set_unsigned *supported_versions) | |
307 | { | |
308 | uint64_t i; | |
309 | PyObject *py_cls = NULL; | |
310 | PyObject *py_params_ptr = NULL; | |
311 | PyObject *py_range_set_addr = NULL; | |
312 | bt_integer_range_set_unsigned *ret_range_set = NULL; | |
6dbc1938 | 313 | bt_component_class_get_supported_mip_versions_method_status status; |
fd57054b PP |
314 | |
315 | py_cls = lookup_cc_ptr_to_py_cls(component_class); | |
316 | if (!py_cls) { | |
317 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, | |
318 | "Cannot find Python class associated to native component class: " | |
319 | "comp-cls-addr=%p", component_class); | |
320 | goto error; | |
321 | } | |
322 | ||
323 | py_params_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(params), | |
324 | SWIGTYPE_p_bt_value, 0); | |
325 | if (!py_params_ptr) { | |
326 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, | |
327 | "Failed to create a SWIG pointer object."); | |
328 | goto error; | |
329 | } | |
330 | ||
331 | /* | |
332 | * We don't take any reference on `init_method_data` which, if | |
333 | * not `NULL`, is assumed to be a `PyObject *`: the user's | |
334 | * _user_get_supported_mip_versions() function will eventually | |
335 | * take a reference if needed. If `init_method_data` is `NULL`, | |
336 | * then we pass `Py_None` as the initialization's Python object. | |
337 | */ | |
338 | py_range_set_addr = PyObject_CallMethod(py_cls, | |
339 | "_bt_get_supported_mip_versions_from_native", "(OOi)", | |
340 | py_params_ptr, init_method_data ? init_method_data : Py_None, | |
341 | (int) log_level); | |
342 | if (!py_range_set_addr) { | |
343 | BT_LOG_WRITE_CUR_LVL(BT_LOG_WARNING, log_level, BT_LOG_TAG, | |
344 | "Failed to call Python class's _bt_get_supported_mip_versions_from_native() method: " | |
345 | "py-cls-addr=%p", py_cls); | |
84e438af | 346 | status = py_exc_to_status_component_class_clear(self_component_class, |
fd57054b PP |
347 | log_level); |
348 | goto end; | |
349 | } | |
350 | ||
351 | /* | |
352 | * The returned object, on success, is an integer object | |
353 | * (PyLong) containing the address of a BT unsigned integer | |
354 | * range set object (new reference). | |
355 | */ | |
356 | ret_range_set = PyLong_AsVoidPtr(py_range_set_addr); | |
357 | BT_ASSERT(!PyErr_Occurred()); | |
358 | BT_ASSERT(ret_range_set); | |
359 | ||
360 | /* Copy returned ranges to input range set */ | |
361 | for (i = 0; i < bt_integer_range_set_get_range_count( | |
362 | bt_integer_range_set_unsigned_as_range_set_const(ret_range_set)); | |
363 | i++) { | |
364 | const bt_integer_range_unsigned *range = | |
365 | bt_integer_range_set_unsigned_borrow_range_by_index_const( | |
366 | ret_range_set, i); | |
367 | bt_integer_range_set_add_range_status add_range_status; | |
368 | ||
369 | add_range_status = bt_integer_range_set_unsigned_add_range( | |
370 | supported_versions, | |
371 | bt_integer_range_unsigned_get_lower(range), | |
372 | bt_integer_range_unsigned_get_upper(range)); | |
373 | if (add_range_status) { | |
374 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, | |
375 | "Failed to add range to supported MIP versions range set."); | |
376 | goto error; | |
377 | } | |
378 | } | |
379 | ||
6dbc1938 SM |
380 | status = BT_COMPONENT_CLASS_GET_SUPPORTED_MIP_VERSIONS_METHOD_STATUS_OK; |
381 | ||
fd57054b PP |
382 | goto end; |
383 | ||
384 | error: | |
6dbc1938 SM |
385 | /* This error path is for non-Python errors only. */ |
386 | status = BT_COMPONENT_CLASS_GET_SUPPORTED_MIP_VERSIONS_METHOD_STATUS_ERROR; | |
fd57054b PP |
387 | |
388 | end: | |
6dbc1938 | 389 | BT_ASSERT(!PyErr_Occurred()); |
fd57054b PP |
390 | Py_XDECREF(py_params_ptr); |
391 | Py_XDECREF(py_range_set_addr); | |
392 | bt_integer_range_set_unsigned_put_ref(ret_range_set); | |
393 | return status; | |
394 | } | |
395 | ||
396 | static | |
397 | bt_component_class_get_supported_mip_versions_method_status | |
398 | component_class_source_get_supported_mip_versions( | |
399 | bt_self_component_class_source *self_component_class_source, | |
400 | const bt_value *params, void *init_method_data, | |
401 | bt_logging_level log_level, | |
402 | bt_integer_range_set_unsigned *supported_versions) | |
403 | { | |
404 | const bt_component_class_source *component_class_source = bt_self_component_class_source_as_component_class_source(self_component_class_source); | |
405 | const bt_component_class *component_class = bt_component_class_source_as_component_class_const(component_class_source); | |
406 | bt_self_component_class *self_component_class = bt_self_component_class_source_as_self_component_class(self_component_class_source); | |
407 | ||
408 | return component_class_get_supported_mip_versions( | |
409 | component_class, self_component_class, | |
410 | params, init_method_data, log_level, supported_versions); | |
411 | } | |
412 | ||
413 | static | |
414 | bt_component_class_get_supported_mip_versions_method_status | |
415 | component_class_filter_get_supported_mip_versions( | |
416 | bt_self_component_class_filter *self_component_class_filter, | |
417 | const bt_value *params, void *init_method_data, | |
418 | bt_logging_level log_level, | |
419 | bt_integer_range_set_unsigned *supported_versions) | |
420 | { | |
421 | const bt_component_class_filter *component_class_filter = bt_self_component_class_filter_as_component_class_filter(self_component_class_filter); | |
422 | const bt_component_class *component_class = bt_component_class_filter_as_component_class_const(component_class_filter); | |
423 | bt_self_component_class *self_component_class = bt_self_component_class_filter_as_self_component_class(self_component_class_filter); | |
424 | ||
425 | return component_class_get_supported_mip_versions( | |
426 | component_class, self_component_class, | |
427 | params, init_method_data, log_level, supported_versions); | |
428 | } | |
429 | ||
430 | static | |
431 | bt_component_class_get_supported_mip_versions_method_status | |
432 | component_class_sink_get_supported_mip_versions( | |
433 | bt_self_component_class_sink *self_component_class_sink, | |
434 | const bt_value *params, void *init_method_data, | |
435 | bt_logging_level log_level, | |
436 | bt_integer_range_set_unsigned *supported_versions) | |
437 | { | |
438 | const bt_component_class_sink *component_class_sink = bt_self_component_class_sink_as_component_class_sink(self_component_class_sink); | |
439 | const bt_component_class *component_class = bt_component_class_sink_as_component_class_const(component_class_sink); | |
440 | bt_self_component_class *self_component_class = bt_self_component_class_sink_as_self_component_class(self_component_class_sink); | |
441 | ||
442 | return component_class_get_supported_mip_versions( | |
443 | component_class, self_component_class, | |
444 | params, init_method_data, log_level, supported_versions); | |
445 | } | |
446 | ||
4212232c PP |
447 | /* |
448 | * Method of bt_component_class_source to initialize a bt_self_component_source | |
449 | * of that class. | |
450 | */ | |
451 | ||
452 | static | |
21a9f056 | 453 | bt_component_class_initialize_method_status component_class_source_init( |
4212232c | 454 | bt_self_component_source *self_component_source, |
59225a3e | 455 | bt_self_component_source_configuration *config, |
4212232c PP |
456 | const bt_value *params, void *init_method_data) |
457 | { | |
458 | bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source); | |
459 | return component_class_init( | |
460 | self_component, | |
461 | self_component_source, | |
462 | SWIGTYPE_p_bt_self_component_source, | |
463 | params, init_method_data); | |
464 | } | |
465 | ||
466 | static | |
21a9f056 | 467 | bt_component_class_initialize_method_status component_class_filter_init( |
4212232c | 468 | bt_self_component_filter *self_component_filter, |
59225a3e | 469 | bt_self_component_filter_configuration *config, |
4212232c PP |
470 | const bt_value *params, void *init_method_data) |
471 | { | |
472 | bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter); | |
473 | return component_class_init( | |
474 | self_component, | |
475 | self_component_filter, | |
476 | SWIGTYPE_p_bt_self_component_filter, | |
477 | params, init_method_data); | |
478 | } | |
479 | ||
480 | static | |
21a9f056 | 481 | bt_component_class_initialize_method_status component_class_sink_init( |
4212232c | 482 | bt_self_component_sink *self_component_sink, |
59225a3e | 483 | bt_self_component_sink_configuration *config, |
4212232c PP |
484 | const bt_value *params, void *init_method_data) |
485 | { | |
486 | bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink); | |
487 | return component_class_init( | |
488 | self_component, | |
489 | self_component_sink, | |
490 | SWIGTYPE_p_bt_self_component_sink, | |
491 | params, init_method_data); | |
492 | } | |
493 | ||
494 | static | |
495 | void component_class_finalize(bt_self_component *self_component) | |
496 | { | |
497 | PyObject *py_comp = bt_self_component_get_data(self_component); | |
6dbc1938 SM |
498 | PyObject *py_method_result; |
499 | ||
4212232c PP |
500 | BT_ASSERT(py_comp); |
501 | ||
502 | /* Call user's _user_finalize() method */ | |
6dbc1938 SM |
503 | py_method_result = PyObject_CallMethod(py_comp, "_user_finalize", NULL); |
504 | if (!py_method_result) { | |
4212232c PP |
505 | bt_logging_level log_level = get_self_component_log_level( |
506 | self_component); | |
507 | ||
6dbc1938 SM |
508 | /* |
509 | * Ignore any exception raised by the _user_finalize() method | |
510 | * because it won't change anything at this point: the component | |
511 | * is being destroyed anyway. | |
512 | */ | |
981f33dd SM |
513 | BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_component, |
514 | "User component's _user_finalize() method raised an exception: ignoring:"); | |
515 | logw_exception_clear(log_level); | |
516 | ||
6dbc1938 | 517 | goto end; |
4212232c PP |
518 | } |
519 | ||
6dbc1938 SM |
520 | BT_ASSERT(py_method_result == Py_None); |
521 | ||
522 | end: | |
4212232c PP |
523 | Py_XDECREF(py_method_result); |
524 | Py_DECREF(py_comp); | |
525 | } | |
526 | ||
527 | static | |
528 | void component_class_source_finalize(bt_self_component_source *self_component_source) | |
529 | { | |
530 | bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source); | |
531 | component_class_finalize(self_component); | |
532 | } | |
533 | ||
534 | static | |
535 | void component_class_filter_finalize(bt_self_component_filter *self_component_filter) | |
536 | { | |
537 | bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter); | |
538 | component_class_finalize(self_component); | |
539 | } | |
540 | ||
541 | static | |
542 | void component_class_sink_finalize(bt_self_component_sink *self_component_sink) | |
543 | { | |
544 | bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink); | |
545 | component_class_finalize(self_component); | |
546 | } | |
547 | ||
548 | static | |
f2fb1b32 SM |
549 | bt_component_class_message_iterator_can_seek_beginning_method_status |
550 | component_class_can_seek_beginning( | |
551 | bt_self_message_iterator *self_message_iterator, bt_bool *can_seek) | |
4212232c PP |
552 | { |
553 | PyObject *py_iter; | |
554 | PyObject *py_result = NULL; | |
f2fb1b32 | 555 | bt_component_class_message_iterator_can_seek_beginning_method_status status; |
4212232c | 556 | py_iter = bt_self_message_iterator_get_data(self_message_iterator); |
6dbc1938 | 557 | |
4212232c PP |
558 | BT_ASSERT(py_iter); |
559 | ||
14cfc8ce SM |
560 | py_result = PyObject_CallMethod(py_iter, |
561 | "_bt_can_seek_beginning_from_native", NULL); | |
6dbc1938 | 562 | if (!py_result) { |
84e438af | 563 | status = py_exc_to_status_message_iterator_clear(self_message_iterator); |
6dbc1938 | 564 | goto end; |
4212232c PP |
565 | } |
566 | ||
6dbc1938 SM |
567 | BT_ASSERT(PyBool_Check(py_result)); |
568 | *can_seek = PyObject_IsTrue(py_result); | |
569 | ||
570 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_CAN_SEEK_BEGINNING_METHOD_STATUS_OK; | |
571 | ||
572 | end: | |
4212232c PP |
573 | Py_XDECREF(py_result); |
574 | ||
f2fb1b32 | 575 | return status; |
4212232c PP |
576 | } |
577 | ||
578 | static | |
579 | bt_component_class_message_iterator_seek_beginning_method_status | |
580 | component_class_seek_beginning(bt_self_message_iterator *self_message_iterator) | |
581 | { | |
582 | PyObject *py_iter; | |
583 | PyObject *py_result; | |
584 | bt_component_class_message_iterator_seek_beginning_method_status status; | |
585 | ||
586 | py_iter = bt_self_message_iterator_get_data(self_message_iterator); | |
587 | BT_ASSERT(py_iter); | |
6dbc1938 SM |
588 | |
589 | py_result = PyObject_CallMethod(py_iter, | |
590 | "_bt_seek_beginning_from_native", | |
4212232c | 591 | NULL); |
6dbc1938 SM |
592 | if (!py_result) { |
593 | status = py_exc_to_status_message_iterator_clear(self_message_iterator); | |
594 | goto end; | |
595 | } | |
596 | ||
597 | BT_ASSERT(py_result == Py_None); | |
598 | ||
599 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_SEEK_BEGINNING_METHOD_STATUS_OK; | |
600 | ||
601 | end: | |
4212232c | 602 | Py_XDECREF(py_result); |
6dbc1938 | 603 | |
4212232c PP |
604 | return status; |
605 | } | |
606 | ||
c182d7dd SM |
607 | static |
608 | bt_component_class_message_iterator_can_seek_ns_from_origin_method_status | |
609 | component_class_can_seek_ns_from_origin( | |
610 | bt_self_message_iterator *self_message_iterator, | |
611 | int64_t ns_from_origin, bt_bool *can_seek) | |
612 | { | |
613 | PyObject *py_iter; | |
614 | PyObject *py_result = NULL; | |
615 | bt_component_class_message_iterator_can_seek_ns_from_origin_method_status status; | |
6dbc1938 | 616 | |
c182d7dd SM |
617 | py_iter = bt_self_message_iterator_get_data(self_message_iterator); |
618 | BT_ASSERT(py_iter); | |
619 | ||
620 | py_result = PyObject_CallMethod(py_iter, | |
621 | "_bt_can_seek_ns_from_origin_from_native", "L", ns_from_origin); | |
6dbc1938 | 622 | if (!py_result) { |
84e438af | 623 | status = py_exc_to_status_message_iterator_clear(self_message_iterator); |
6dbc1938 | 624 | goto end; |
c182d7dd SM |
625 | } |
626 | ||
6dbc1938 SM |
627 | BT_ASSERT(PyBool_Check(py_result)); |
628 | *can_seek = PyObject_IsTrue(py_result); | |
629 | ||
630 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_CAN_SEEK_NS_FROM_ORIGIN_METHOD_STATUS_OK; | |
631 | ||
632 | end: | |
c182d7dd SM |
633 | Py_XDECREF(py_result); |
634 | ||
635 | return status; | |
636 | } | |
637 | ||
638 | static | |
639 | bt_component_class_message_iterator_seek_ns_from_origin_method_status | |
640 | component_class_seek_ns_from_origin( | |
641 | bt_self_message_iterator *self_message_iterator, | |
642 | int64_t ns_from_origin) | |
643 | { | |
644 | PyObject *py_iter; | |
645 | PyObject *py_result; | |
646 | bt_component_class_message_iterator_seek_ns_from_origin_method_status status; | |
647 | ||
648 | py_iter = bt_self_message_iterator_get_data(self_message_iterator); | |
649 | BT_ASSERT(py_iter); | |
6dbc1938 | 650 | |
c182d7dd SM |
651 | py_result = PyObject_CallMethod(py_iter, |
652 | "_bt_seek_ns_from_origin_from_native", "L", ns_from_origin); | |
6dbc1938 SM |
653 | if (!py_result) { |
654 | status = py_exc_to_status_message_iterator_clear(self_message_iterator); | |
655 | goto end; | |
656 | } | |
657 | ||
658 | ||
659 | BT_ASSERT(py_result == Py_None); | |
660 | ||
661 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_SEEK_NS_FROM_ORIGIN_METHOD_STATUS_OK; | |
662 | ||
663 | end: | |
c182d7dd | 664 | Py_XDECREF(py_result); |
6dbc1938 | 665 | |
c182d7dd SM |
666 | return status; |
667 | } | |
668 | ||
4212232c PP |
669 | static |
670 | bt_component_class_port_connected_method_status component_class_port_connected( | |
671 | bt_self_component *self_component, | |
672 | void *self_component_port, | |
673 | swig_type_info *self_component_port_swig_type, | |
674 | bt_port_type self_component_port_type, | |
675 | const void *other_port, | |
676 | swig_type_info *other_port_swig_type) | |
677 | { | |
678 | bt_component_class_port_connected_method_status status; | |
679 | PyObject *py_comp = NULL; | |
680 | PyObject *py_self_port_ptr = NULL; | |
681 | PyObject *py_other_port_ptr = NULL; | |
682 | PyObject *py_method_result = NULL; | |
683 | bt_logging_level log_level = get_self_component_log_level( | |
684 | self_component); | |
685 | ||
686 | py_comp = bt_self_component_get_data(self_component); | |
687 | BT_ASSERT(py_comp); | |
688 | py_self_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_component_port), | |
689 | self_component_port_swig_type, 0); | |
690 | if (!py_self_port_ptr) { | |
691 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
692 | "Failed to create a SWIG pointer object."); | |
693 | status = __BT_FUNC_STATUS_MEMORY_ERROR; | |
694 | goto end; | |
695 | } | |
696 | ||
697 | py_other_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(other_port), | |
698 | other_port_swig_type, 0); | |
699 | if (!py_other_port_ptr) { | |
700 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
701 | "Failed to create a SWIG pointer object."); | |
702 | status = __BT_FUNC_STATUS_MEMORY_ERROR; | |
6dbc1938 SM |
703 | goto end; |
704 | } | |
4212232c PP |
705 | |
706 | py_method_result = PyObject_CallMethod(py_comp, | |
707 | "_bt_port_connected_from_native", "(OiO)", py_self_port_ptr, | |
708 | self_component_port_type, py_other_port_ptr); | |
6dbc1938 SM |
709 | if (!py_method_result) { |
710 | status = py_exc_to_status_component_clear(self_component); | |
711 | goto end; | |
712 | } | |
713 | ||
714 | BT_ASSERT(py_method_result == Py_None); | |
715 | ||
716 | status = BT_COMPONENT_CLASS_PORT_CONNECTED_METHOD_STATUS_OK; | |
4212232c PP |
717 | |
718 | end: | |
719 | Py_XDECREF(py_self_port_ptr); | |
720 | Py_XDECREF(py_other_port_ptr); | |
721 | Py_XDECREF(py_method_result); | |
6dbc1938 | 722 | |
4212232c PP |
723 | return status; |
724 | } | |
725 | ||
726 | static | |
727 | bt_component_class_port_connected_method_status | |
728 | component_class_source_output_port_connected( | |
729 | bt_self_component_source *self_component_source, | |
730 | bt_self_component_port_output *self_component_port_output, | |
731 | const bt_port_input *other_port_input) | |
732 | { | |
733 | bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source); | |
734 | ||
735 | return component_class_port_connected( | |
736 | self_component, | |
737 | self_component_port_output, | |
738 | SWIGTYPE_p_bt_self_component_port_output, | |
739 | BT_PORT_TYPE_OUTPUT, | |
740 | other_port_input, | |
741 | SWIGTYPE_p_bt_port_input); | |
742 | } | |
743 | ||
744 | static | |
745 | bt_component_class_port_connected_method_status | |
746 | component_class_filter_input_port_connected( | |
747 | bt_self_component_filter *self_component_filter, | |
748 | bt_self_component_port_input *self_component_port_input, | |
749 | const bt_port_output *other_port_output) | |
750 | { | |
751 | bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter); | |
752 | ||
753 | return component_class_port_connected( | |
754 | self_component, | |
755 | self_component_port_input, | |
756 | SWIGTYPE_p_bt_self_component_port_input, | |
757 | BT_PORT_TYPE_INPUT, | |
758 | other_port_output, | |
759 | SWIGTYPE_p_bt_port_output); | |
760 | } | |
761 | ||
762 | static | |
763 | bt_component_class_port_connected_method_status | |
764 | component_class_filter_output_port_connected( | |
765 | bt_self_component_filter *self_component_filter, | |
766 | bt_self_component_port_output *self_component_port_output, | |
767 | const bt_port_input *other_port_input) | |
768 | { | |
769 | bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter); | |
770 | ||
771 | return component_class_port_connected( | |
772 | self_component, | |
773 | self_component_port_output, | |
774 | SWIGTYPE_p_bt_self_component_port_output, | |
775 | BT_PORT_TYPE_OUTPUT, | |
776 | other_port_input, | |
777 | SWIGTYPE_p_bt_port_input); | |
778 | } | |
779 | ||
780 | static | |
781 | bt_component_class_port_connected_method_status | |
782 | component_class_sink_input_port_connected( | |
783 | bt_self_component_sink *self_component_sink, | |
784 | bt_self_component_port_input *self_component_port_input, | |
785 | const bt_port_output *other_port_output) | |
786 | { | |
787 | bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink); | |
788 | ||
789 | return component_class_port_connected( | |
790 | self_component, | |
791 | self_component_port_input, | |
792 | SWIGTYPE_p_bt_self_component_port_input, | |
793 | BT_PORT_TYPE_INPUT, | |
794 | other_port_output, | |
795 | SWIGTYPE_p_bt_port_output); | |
796 | } | |
797 | ||
798 | static | |
799 | bt_component_class_sink_graph_is_configured_method_status | |
800 | component_class_sink_graph_is_configured( | |
801 | bt_self_component_sink *self_component_sink) | |
802 | { | |
803 | PyObject *py_comp = NULL; | |
804 | PyObject *py_method_result = NULL; | |
6dbc1938 | 805 | bt_component_class_sink_graph_is_configured_method_status status; |
4212232c PP |
806 | bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink); |
807 | ||
808 | py_comp = bt_self_component_get_data(self_component); | |
6dbc1938 | 809 | |
4212232c PP |
810 | py_method_result = PyObject_CallMethod(py_comp, |
811 | "_bt_graph_is_configured_from_native", NULL); | |
6dbc1938 SM |
812 | if (!py_method_result) { |
813 | status = py_exc_to_status_component_clear(self_component); | |
814 | goto end; | |
815 | } | |
816 | ||
817 | BT_ASSERT(py_method_result == Py_None); | |
818 | ||
819 | status = BT_COMPONENT_CLASS_SINK_GRAPH_IS_CONFIGURED_METHOD_STATUS_OK;; | |
820 | ||
821 | end: | |
4212232c PP |
822 | Py_XDECREF(py_method_result); |
823 | return status; | |
824 | } | |
825 | ||
826 | static | |
827 | bt_component_class_query_method_status component_class_query( | |
828 | const bt_component_class *component_class, | |
829 | bt_self_component_class *self_component_class, | |
830 | bt_private_query_executor *priv_query_executor, | |
7c14d641 | 831 | const char *object, const bt_value *params, void *method_data, |
4212232c PP |
832 | const bt_value **result) |
833 | { | |
834 | PyObject *py_cls = NULL; | |
835 | PyObject *py_params_ptr = NULL; | |
836 | PyObject *py_priv_query_exec_ptr = NULL; | |
837 | PyObject *py_query_func = NULL; | |
838 | PyObject *py_object = NULL; | |
839 | PyObject *py_results_addr = NULL; | |
840 | bt_component_class_query_method_status status = __BT_FUNC_STATUS_OK; | |
841 | const bt_query_executor *query_exec = | |
842 | bt_private_query_executor_as_query_executor_const( | |
843 | priv_query_executor); | |
844 | bt_logging_level log_level = | |
845 | bt_query_executor_get_logging_level(query_exec); | |
846 | ||
7c14d641 PP |
847 | /* |
848 | * If there's any `method_data`, assume this component class is | |
849 | * getting queried from Python, so that `method_data` is a | |
850 | * Python object to pass to the user's _user_query() method. | |
851 | */ | |
852 | BT_ASSERT(!method_data || | |
853 | bt_bt2_is_python_component_class(component_class)); | |
854 | ||
4212232c PP |
855 | py_cls = lookup_cc_ptr_to_py_cls(component_class); |
856 | if (!py_cls) { | |
857 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, | |
858 | "Cannot find Python class associated to native component class: " | |
859 | "comp-cls-addr=%p", component_class); | |
860 | goto error; | |
861 | } | |
862 | ||
863 | py_params_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(params), | |
864 | SWIGTYPE_p_bt_value, 0); | |
865 | if (!py_params_ptr) { | |
866 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, | |
867 | "Failed to create a SWIG pointer object."); | |
868 | goto error; | |
869 | } | |
870 | ||
871 | py_priv_query_exec_ptr = SWIG_NewPointerObj( | |
872 | SWIG_as_voidptr(priv_query_executor), | |
873 | SWIGTYPE_p_bt_private_query_executor, 0); | |
874 | if (!py_priv_query_exec_ptr) { | |
875 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, | |
876 | "Failed to create a SWIG pointer object."); | |
877 | goto error; | |
878 | } | |
879 | ||
880 | py_object = SWIG_FromCharPtr(object); | |
881 | if (!py_object) { | |
882 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, | |
883 | "Failed to create a Python string."); | |
884 | goto error; | |
885 | } | |
886 | ||
7c14d641 PP |
887 | /* |
888 | * We don't take any reference on `method_data` which, if not | |
889 | * `NULL`, is assumed to be a `PyObject *`: the user's | |
890 | * _user_query() function will eventually take a reference if | |
891 | * needed. If `method_data` is `NULL`, then we pass `Py_None` as | |
892 | * the initialization's Python object. | |
893 | */ | |
4212232c | 894 | py_results_addr = PyObject_CallMethod(py_cls, |
7c14d641 PP |
895 | "_bt_query_from_native", "(OOOO)", py_priv_query_exec_ptr, |
896 | py_object, py_params_ptr, | |
897 | method_data ? method_data : Py_None); | |
4212232c | 898 | if (!py_results_addr) { |
84e438af | 899 | status = py_exc_to_status_component_class_clear(self_component_class, |
4212232c | 900 | log_level); |
561e7049 SM |
901 | if (status < 0) { |
902 | static const char *fmt = | |
903 | "Failed to call Python class's _bt_query_from_native() method: py-cls-addr=%p"; | |
904 | BT_LOG_WRITE_CUR_LVL(BT_LOG_WARNING, log_level, BT_LOG_TAG, | |
905 | fmt, py_cls); | |
906 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_COMPONENT_CLASS( | |
907 | self_component_class, fmt, py_cls); | |
908 | } | |
4212232c PP |
909 | goto end; |
910 | } | |
911 | ||
912 | /* | |
913 | * The returned object, on success, is an integer object | |
914 | * (PyLong) containing the address of a BT value object (new | |
915 | * reference). | |
916 | */ | |
917 | *result = PyLong_AsVoidPtr(py_results_addr); | |
918 | BT_ASSERT(!PyErr_Occurred()); | |
919 | BT_ASSERT(*result); | |
920 | goto end; | |
921 | ||
922 | error: | |
923 | PyErr_Clear(); | |
924 | status = __BT_FUNC_STATUS_ERROR; | |
925 | ||
926 | end: | |
927 | Py_XDECREF(py_params_ptr); | |
928 | Py_XDECREF(py_priv_query_exec_ptr); | |
929 | Py_XDECREF(py_query_func); | |
930 | Py_XDECREF(py_object); | |
931 | Py_XDECREF(py_results_addr); | |
932 | return status; | |
933 | } | |
934 | ||
935 | static | |
936 | bt_component_class_query_method_status component_class_source_query( | |
937 | bt_self_component_class_source *self_component_class_source, | |
938 | bt_private_query_executor *priv_query_executor, | |
7c14d641 | 939 | const char *object, const bt_value *params, void *method_data, |
4212232c PP |
940 | const bt_value **result) |
941 | { | |
942 | const bt_component_class_source *component_class_source = bt_self_component_class_source_as_component_class_source(self_component_class_source); | |
943 | const bt_component_class *component_class = bt_component_class_source_as_component_class_const(component_class_source); | |
944 | bt_self_component_class *self_component_class = bt_self_component_class_source_as_self_component_class(self_component_class_source); | |
945 | ||
946 | return component_class_query(component_class, self_component_class, | |
7c14d641 | 947 | priv_query_executor, object, params, method_data, result); |
4212232c PP |
948 | } |
949 | ||
950 | static | |
951 | bt_component_class_query_method_status component_class_filter_query( | |
952 | bt_self_component_class_filter *self_component_class_filter, | |
953 | bt_private_query_executor *priv_query_executor, | |
7c14d641 | 954 | const char *object, const bt_value *params, void *method_data, |
4212232c PP |
955 | const bt_value **result) |
956 | { | |
957 | const bt_component_class_filter *component_class_filter = bt_self_component_class_filter_as_component_class_filter(self_component_class_filter); | |
958 | const bt_component_class *component_class = bt_component_class_filter_as_component_class_const(component_class_filter); | |
959 | bt_self_component_class *self_component_class = bt_self_component_class_filter_as_self_component_class(self_component_class_filter); | |
960 | ||
961 | return component_class_query(component_class, self_component_class, | |
7c14d641 | 962 | priv_query_executor, object, params, method_data, result); |
4212232c PP |
963 | } |
964 | ||
965 | static | |
966 | bt_component_class_query_method_status component_class_sink_query( | |
967 | bt_self_component_class_sink *self_component_class_sink, | |
968 | bt_private_query_executor *priv_query_executor, | |
7c14d641 | 969 | const char *object, const bt_value *params, void *method_data, |
4212232c PP |
970 | const bt_value **result) |
971 | { | |
972 | const bt_component_class_sink *component_class_sink = bt_self_component_class_sink_as_component_class_sink(self_component_class_sink); | |
973 | const bt_component_class *component_class = bt_component_class_sink_as_component_class_const(component_class_sink); | |
974 | bt_self_component_class *self_component_class = bt_self_component_class_sink_as_self_component_class(self_component_class_sink); | |
975 | ||
976 | return component_class_query(component_class, self_component_class, | |
7c14d641 | 977 | priv_query_executor, object, params, method_data, result); |
4212232c PP |
978 | } |
979 | ||
980 | static | |
21a9f056 | 981 | bt_component_class_message_iterator_initialize_method_status |
4212232c PP |
982 | component_class_message_iterator_init( |
983 | bt_self_message_iterator *self_message_iterator, | |
8d8b141d | 984 | bt_self_message_iterator_configuration *config, |
4212232c PP |
985 | bt_self_component *self_component, |
986 | bt_self_component_port_output *self_component_port_output) | |
987 | { | |
21a9f056 | 988 | bt_component_class_message_iterator_initialize_method_status status = __BT_FUNC_STATUS_OK; |
4212232c PP |
989 | PyObject *py_comp_cls = NULL; |
990 | PyObject *py_iter_cls = NULL; | |
991 | PyObject *py_iter_ptr = NULL; | |
8d8b141d | 992 | PyObject *py_config_ptr = NULL; |
4212232c PP |
993 | PyObject *py_component_port_output_ptr = NULL; |
994 | PyObject *py_init_method_result = NULL; | |
995 | PyObject *py_iter = NULL; | |
996 | PyObject *py_comp; | |
997 | bt_logging_level log_level = get_self_component_log_level( | |
998 | self_component); | |
999 | ||
1000 | py_comp = bt_self_component_get_data(self_component); | |
1001 | ||
1002 | /* Find user's Python message iterator class */ | |
1003 | py_comp_cls = PyObject_GetAttrString(py_comp, "__class__"); | |
1004 | if (!py_comp_cls) { | |
1005 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
1006 | "Cannot get Python object's `__class__` attribute."); | |
1007 | goto python_error; | |
1008 | } | |
1009 | ||
1010 | py_iter_cls = PyObject_GetAttrString(py_comp_cls, "_iter_cls"); | |
1011 | if (!py_iter_cls) { | |
1012 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
1013 | "Cannot get Python class's `_iter_cls` attribute."); | |
1014 | goto python_error; | |
1015 | } | |
1016 | ||
1017 | py_iter_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_message_iterator), | |
1018 | SWIGTYPE_p_bt_self_message_iterator, 0); | |
1019 | if (!py_iter_ptr) { | |
1020 | const char *err = "Failed to create a SWIG pointer object."; | |
1021 | ||
1022 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
1023 | "%s", err); | |
1024 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR( | |
1025 | self_message_iterator, err); | |
1026 | goto error; | |
1027 | } | |
1028 | ||
1029 | /* | |
1030 | * Create object with borrowed native message iterator | |
1031 | * reference: | |
1032 | * | |
1033 | * py_iter = py_iter_cls.__new__(py_iter_cls, py_iter_ptr) | |
1034 | */ | |
1035 | py_iter = PyObject_CallMethod(py_iter_cls, "__new__", | |
1036 | "(OO)", py_iter_cls, py_iter_ptr); | |
1037 | if (!py_iter) { | |
1038 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
1039 | "Failed to call Python class's __new__() method: " | |
1040 | "py-cls-addr=%p", py_iter_cls); | |
1041 | goto python_error; | |
1042 | } | |
1043 | ||
1044 | /* | |
1045 | * Initialize object: | |
1046 | * | |
8d8b141d | 1047 | * py_iter.__init__(config, self_output_port) |
4212232c | 1048 | * |
8d8b141d | 1049 | * through the _init_from_native helper static method. |
4212232c PP |
1050 | * |
1051 | * At this point, py_iter._ptr is set, so this initialization | |
1052 | * function has access to self._component (which gives it the | |
1053 | * user Python component object from which the iterator was | |
1054 | * created). | |
1055 | */ | |
8d8b141d SM |
1056 | py_config_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(config), |
1057 | SWIGTYPE_p_bt_self_message_iterator_configuration, 0); | |
1058 | if (!py_config_ptr) { | |
1059 | const char *err = "Failed to create a SWIG pointer object"; | |
1060 | ||
1061 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
1062 | "%s", err); | |
1063 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR( | |
1064 | self_message_iterator, err); | |
1065 | goto error; | |
1066 | } | |
1067 | ||
4212232c PP |
1068 | py_component_port_output_ptr = SWIG_NewPointerObj( |
1069 | SWIG_as_voidptr(self_component_port_output), | |
1070 | SWIGTYPE_p_bt_self_component_port_output, 0); | |
1071 | if (!py_component_port_output_ptr) { | |
1072 | const char *err = "Failed to create a SWIG pointer object."; | |
1073 | ||
1074 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
1075 | "%s", err); | |
1076 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR( | |
1077 | self_message_iterator, err); | |
1078 | goto error; | |
1079 | } | |
1080 | ||
1081 | py_init_method_result = PyObject_CallMethod(py_iter, | |
8d8b141d SM |
1082 | "_bt_init_from_native", "OO", py_config_ptr, |
1083 | py_component_port_output_ptr); | |
4212232c PP |
1084 | if (!py_init_method_result) { |
1085 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, | |
1086 | "User's __init__() method failed:"); | |
1087 | goto python_error; | |
1088 | } | |
1089 | ||
1090 | /* | |
1091 | * Since the Python code can never instantiate a user-defined | |
1092 | * message iterator class, the native message iterator | |
1093 | * object does NOT belong to a user Python message iterator | |
1094 | * object (borrowed reference). However this Python object is | |
1095 | * owned by this native message iterator object. | |
1096 | * | |
1097 | * In the Python world, the lifetime of the native message | |
1098 | * iterator is managed by a _GenericMessageIterator | |
1099 | * instance: | |
1100 | * | |
1101 | * _GenericMessageIterator instance: | |
1102 | * owns a native bt_message_iterator object (iter) | |
1103 | * owns a _UserMessageIterator instance (py_iter) | |
1104 | * self._ptr is a borrowed reference to the | |
1105 | * native bt_private_connection_private_message_iterator | |
1106 | * object (iter) | |
1107 | */ | |
1108 | bt_self_message_iterator_set_data(self_message_iterator, py_iter); | |
1109 | py_iter = NULL; | |
1110 | goto end; | |
1111 | ||
1112 | python_error: | |
1113 | /* Handling of errors that cause a Python exception to be set. */ | |
84e438af | 1114 | status = py_exc_to_status_message_iterator_clear(self_message_iterator); |
4212232c PP |
1115 | goto end; |
1116 | ||
1117 | error: | |
1118 | /* Handling of errors that don't cause a Python exception to be set. */ | |
1119 | status = __BT_FUNC_STATUS_ERROR; | |
1120 | ||
1121 | end: | |
1122 | BT_ASSERT(!PyErr_Occurred()); | |
1123 | ||
1124 | Py_XDECREF(py_comp_cls); | |
1125 | Py_XDECREF(py_iter_cls); | |
1126 | Py_XDECREF(py_iter_ptr); | |
1127 | Py_XDECREF(py_component_port_output_ptr); | |
1128 | Py_XDECREF(py_init_method_result); | |
1129 | Py_XDECREF(py_iter); | |
1130 | return status; | |
1131 | } | |
1132 | ||
1133 | static | |
21a9f056 | 1134 | bt_component_class_message_iterator_initialize_method_status |
4212232c PP |
1135 | component_class_source_message_iterator_init( |
1136 | bt_self_message_iterator *self_message_iterator, | |
8d8b141d | 1137 | bt_self_message_iterator_configuration *config, |
4212232c PP |
1138 | bt_self_component_source *self_component_source, |
1139 | bt_self_component_port_output *self_component_port_output) | |
1140 | { | |
8d8b141d SM |
1141 | bt_self_component *self_component = |
1142 | bt_self_component_source_as_self_component(self_component_source); | |
4212232c | 1143 | |
8d8b141d SM |
1144 | return component_class_message_iterator_init(self_message_iterator, |
1145 | config, self_component, self_component_port_output); | |
4212232c PP |
1146 | } |
1147 | ||
1148 | static | |
21a9f056 | 1149 | bt_component_class_message_iterator_initialize_method_status |
4212232c PP |
1150 | component_class_filter_message_iterator_init( |
1151 | bt_self_message_iterator *self_message_iterator, | |
8d8b141d | 1152 | bt_self_message_iterator_configuration *config, |
4212232c PP |
1153 | bt_self_component_filter *self_component_filter, |
1154 | bt_self_component_port_output *self_component_port_output) | |
1155 | { | |
8d8b141d SM |
1156 | bt_self_component *self_component = |
1157 | bt_self_component_filter_as_self_component(self_component_filter); | |
4212232c | 1158 | |
8d8b141d SM |
1159 | return component_class_message_iterator_init(self_message_iterator, |
1160 | config, self_component, self_component_port_output); | |
4212232c PP |
1161 | } |
1162 | ||
1163 | static | |
1164 | void component_class_message_iterator_finalize( | |
1165 | bt_self_message_iterator *message_iterator) | |
1166 | { | |
1167 | PyObject *py_message_iter = bt_self_message_iterator_get_data( | |
1168 | message_iterator); | |
1169 | PyObject *py_method_result = NULL; | |
1170 | ||
1171 | BT_ASSERT(py_message_iter); | |
1172 | ||
1173 | /* Call user's _user_finalize() method */ | |
1174 | py_method_result = PyObject_CallMethod(py_message_iter, | |
1175 | "_user_finalize", NULL); | |
6dbc1938 | 1176 | if (!py_method_result) { |
4212232c PP |
1177 | bt_self_component *self_comp = |
1178 | bt_self_message_iterator_borrow_component( | |
1179 | message_iterator); | |
1180 | bt_logging_level log_level = get_self_component_log_level( | |
1181 | self_comp); | |
1182 | ||
6dbc1938 SM |
1183 | /* |
1184 | * Ignore any exception raised by the _user_finalize() method | |
1185 | * because it won't change anything at this point: the component | |
1186 | * is being destroyed anyway. | |
1187 | */ | |
981f33dd SM |
1188 | BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_comp, |
1189 | "User's _user_finalize() method raised an exception: ignoring:"); | |
1190 | logw_exception_clear(get_self_message_iterator_log_level( | |
1191 | message_iterator)); | |
4212232c PP |
1192 | } |
1193 | ||
4212232c PP |
1194 | Py_XDECREF(py_method_result); |
1195 | Py_DECREF(py_message_iter); | |
1196 | } | |
1197 | ||
1198 | /* Valid for both sources and filters. */ | |
1199 | ||
1200 | static | |
1201 | bt_component_class_message_iterator_next_method_status | |
1202 | component_class_message_iterator_next( | |
1203 | bt_self_message_iterator *message_iterator, | |
1204 | bt_message_array_const msgs, uint64_t capacity, | |
1205 | uint64_t *count) | |
1206 | { | |
6dbc1938 | 1207 | bt_component_class_message_iterator_next_method_status status; |
4212232c PP |
1208 | PyObject *py_message_iter = bt_self_message_iterator_get_data(message_iterator); |
1209 | PyObject *py_method_result = NULL; | |
1210 | ||
98b15851 | 1211 | BT_ASSERT_DBG(py_message_iter); |
4212232c PP |
1212 | py_method_result = PyObject_CallMethod(py_message_iter, |
1213 | "_bt_next_from_native", NULL); | |
1214 | if (!py_method_result) { | |
84e438af | 1215 | status = py_exc_to_status_message_iterator_clear(message_iterator); |
4212232c PP |
1216 | goto end; |
1217 | } | |
1218 | ||
1219 | /* | |
1220 | * The returned object, on success, is an integer object | |
1221 | * (PyLong) containing the address of a native message | |
1222 | * object (which is now ours). | |
1223 | */ | |
1224 | msgs[0] = PyLong_AsVoidPtr(py_method_result); | |
1225 | *count = 1; | |
1226 | ||
6dbc1938 | 1227 | /* Overflow errors should never happen. */ |
98b15851 | 1228 | BT_ASSERT_DBG(!PyErr_Occurred()); |
6dbc1938 SM |
1229 | |
1230 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK; | |
4212232c PP |
1231 | |
1232 | end: | |
1233 | Py_XDECREF(py_method_result); | |
1234 | return status; | |
1235 | } | |
1236 | ||
1237 | static | |
1238 | bt_component_class_sink_consume_method_status | |
1239 | component_class_sink_consume(bt_self_component_sink *self_component_sink) | |
1240 | { | |
1241 | bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink); | |
1242 | PyObject *py_comp = bt_self_component_get_data(self_component); | |
1243 | PyObject *py_method_result = NULL; | |
1244 | bt_component_class_sink_consume_method_status status; | |
1245 | ||
98b15851 | 1246 | BT_ASSERT_DBG(py_comp); |
6dbc1938 | 1247 | |
4212232c PP |
1248 | py_method_result = PyObject_CallMethod(py_comp, |
1249 | "_user_consume", NULL); | |
6dbc1938 SM |
1250 | if (!py_method_result) { |
1251 | status = py_exc_to_status_component_clear(self_component); | |
1252 | goto end; | |
1253 | } | |
1254 | ||
1255 | status = BT_COMPONENT_CLASS_SINK_CONSUME_METHOD_STATUS_OK; | |
1256 | ||
1257 | end: | |
4212232c PP |
1258 | Py_XDECREF(py_method_result); |
1259 | return status; | |
1260 | } | |
1261 | ||
1262 | static | |
1263 | int component_class_set_help_and_desc( | |
1264 | bt_component_class *component_class, | |
1265 | const char *description, const char *help) | |
1266 | { | |
1267 | int ret; | |
1268 | ||
1269 | if (description) { | |
1270 | ret = bt_component_class_set_description(component_class, description); | |
1271 | if (ret) { | |
1272 | BT_LOGE("Cannot set component class's description: " | |
1273 | "comp-cls-addr=%p", component_class); | |
1274 | goto end; | |
1275 | } | |
1276 | } | |
1277 | ||
1278 | if (help) { | |
1279 | ret = bt_component_class_set_help(component_class, help); | |
1280 | if (ret) { | |
1281 | BT_LOGE("Cannot set component class's help text: " | |
1282 | "comp-cls-addr=%p", component_class); | |
1283 | goto end; | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | ret = 0; | |
1288 | ||
1289 | end: | |
1290 | return ret; | |
1291 | } | |
1292 | ||
1293 | static | |
1294 | bt_component_class_source *bt_bt2_component_class_source_create( | |
1295 | PyObject *py_cls, const char *name, const char *description, | |
1296 | const char *help) | |
1297 | { | |
1298 | bt_component_class_source *component_class_source; | |
1299 | bt_component_class *component_class; | |
1300 | int ret; | |
1301 | ||
1302 | BT_ASSERT(py_cls); | |
1303 | component_class_source = bt_component_class_source_create(name, | |
1304 | component_class_message_iterator_next); | |
1305 | if (!component_class_source) { | |
1306 | BT_LOGE_STR("Cannot create source component class."); | |
1307 | goto end; | |
1308 | } | |
1309 | ||
1310 | component_class = bt_component_class_source_as_component_class(component_class_source); | |
1311 | ||
1312 | if (component_class_set_help_and_desc(component_class, description, help)) { | |
1313 | goto end; | |
1314 | } | |
1315 | ||
21a9f056 | 1316 | ret = bt_component_class_source_set_initialize_method(component_class_source, component_class_source_init); |
4212232c PP |
1317 | BT_ASSERT(ret == 0); |
1318 | ret = bt_component_class_source_set_finalize_method(component_class_source, component_class_source_finalize); | |
1319 | BT_ASSERT(ret == 0); | |
2e1b5615 SM |
1320 | ret = bt_component_class_source_set_message_iterator_seek_beginning_methods(component_class_source, |
1321 | component_class_seek_beginning, component_class_can_seek_beginning); | |
1322 | ret = bt_component_class_source_set_message_iterator_seek_ns_from_origin_methods( | |
1323 | component_class_source, component_class_seek_ns_from_origin, | |
1324 | component_class_can_seek_ns_from_origin); | |
4212232c PP |
1325 | BT_ASSERT(ret == 0); |
1326 | ret = bt_component_class_source_set_output_port_connected_method(component_class_source, | |
1327 | component_class_source_output_port_connected); | |
1328 | BT_ASSERT(ret == 0); | |
1329 | ret = bt_component_class_source_set_query_method(component_class_source, component_class_source_query); | |
1330 | BT_ASSERT(ret == 0); | |
fd57054b PP |
1331 | ret = bt_component_class_source_set_get_supported_mip_versions_method(component_class_source, component_class_source_get_supported_mip_versions); |
1332 | BT_ASSERT(ret == 0); | |
21a9f056 | 1333 | ret = bt_component_class_source_set_message_iterator_initialize_method( |
4212232c PP |
1334 | component_class_source, component_class_source_message_iterator_init); |
1335 | BT_ASSERT(ret == 0); | |
1336 | ret = bt_component_class_source_set_message_iterator_finalize_method( | |
1337 | component_class_source, component_class_message_iterator_finalize); | |
1338 | BT_ASSERT(ret == 0); | |
1339 | register_cc_ptr_to_py_cls(component_class, py_cls); | |
1340 | ||
1341 | end: | |
1342 | return component_class_source; | |
1343 | } | |
1344 | ||
1345 | static | |
1346 | bt_component_class_filter *bt_bt2_component_class_filter_create( | |
1347 | PyObject *py_cls, const char *name, const char *description, | |
1348 | const char *help) | |
1349 | { | |
1350 | bt_component_class *component_class; | |
1351 | bt_component_class_filter *component_class_filter; | |
1352 | int ret; | |
1353 | ||
1354 | BT_ASSERT(py_cls); | |
1355 | component_class_filter = bt_component_class_filter_create(name, | |
1356 | component_class_message_iterator_next); | |
1357 | if (!component_class_filter) { | |
1358 | BT_LOGE_STR("Cannot create filter component class."); | |
1359 | goto end; | |
1360 | } | |
1361 | ||
1362 | component_class = bt_component_class_filter_as_component_class(component_class_filter); | |
1363 | ||
1364 | if (component_class_set_help_and_desc(component_class, description, help)) { | |
1365 | goto end; | |
1366 | } | |
1367 | ||
21a9f056 | 1368 | ret = bt_component_class_filter_set_initialize_method(component_class_filter, component_class_filter_init); |
4212232c PP |
1369 | BT_ASSERT(ret == 0); |
1370 | ret = bt_component_class_filter_set_finalize_method (component_class_filter, component_class_filter_finalize); | |
1371 | BT_ASSERT(ret == 0); | |
2e1b5615 SM |
1372 | ret = bt_component_class_filter_set_message_iterator_seek_beginning_methods(component_class_filter, |
1373 | component_class_seek_beginning, component_class_can_seek_beginning); | |
c182d7dd | 1374 | BT_ASSERT(ret == 0); |
2e1b5615 SM |
1375 | ret = bt_component_class_filter_set_message_iterator_seek_ns_from_origin_methods( |
1376 | component_class_filter, component_class_seek_ns_from_origin, | |
1377 | component_class_can_seek_ns_from_origin); | |
4212232c PP |
1378 | ret = bt_component_class_filter_set_input_port_connected_method(component_class_filter, |
1379 | component_class_filter_input_port_connected); | |
1380 | BT_ASSERT(ret == 0); | |
1381 | ret = bt_component_class_filter_set_output_port_connected_method(component_class_filter, | |
1382 | component_class_filter_output_port_connected); | |
1383 | BT_ASSERT(ret == 0); | |
1384 | ret = bt_component_class_filter_set_query_method(component_class_filter, component_class_filter_query); | |
1385 | BT_ASSERT(ret == 0); | |
fd57054b PP |
1386 | ret = bt_component_class_filter_set_get_supported_mip_versions_method(component_class_filter, component_class_filter_get_supported_mip_versions); |
1387 | BT_ASSERT(ret == 0); | |
21a9f056 | 1388 | ret = bt_component_class_filter_set_message_iterator_initialize_method( |
4212232c PP |
1389 | component_class_filter, component_class_filter_message_iterator_init); |
1390 | BT_ASSERT(ret == 0); | |
1391 | ret = bt_component_class_filter_set_message_iterator_finalize_method( | |
1392 | component_class_filter, component_class_message_iterator_finalize); | |
1393 | BT_ASSERT(ret == 0); | |
1394 | register_cc_ptr_to_py_cls(component_class, py_cls); | |
1395 | ||
1396 | end: | |
1397 | return component_class_filter; | |
1398 | } | |
1399 | ||
1400 | static | |
1401 | bt_component_class_sink *bt_bt2_component_class_sink_create( | |
1402 | PyObject *py_cls, const char *name, const char *description, | |
1403 | const char *help) | |
1404 | { | |
1405 | bt_component_class_sink *component_class_sink; | |
1406 | bt_component_class *component_class; | |
1407 | int ret; | |
1408 | ||
1409 | BT_ASSERT(py_cls); | |
1410 | component_class_sink = bt_component_class_sink_create(name, component_class_sink_consume); | |
1411 | ||
1412 | if (!component_class_sink) { | |
1413 | BT_LOGE_STR("Cannot create sink component class."); | |
1414 | goto end; | |
1415 | } | |
1416 | ||
1417 | component_class = bt_component_class_sink_as_component_class(component_class_sink); | |
1418 | ||
1419 | if (component_class_set_help_and_desc(component_class, description, help)) { | |
1420 | goto end; | |
1421 | } | |
1422 | ||
21a9f056 | 1423 | ret = bt_component_class_sink_set_initialize_method(component_class_sink, component_class_sink_init); |
4212232c PP |
1424 | BT_ASSERT(ret == 0); |
1425 | ret = bt_component_class_sink_set_finalize_method(component_class_sink, component_class_sink_finalize); | |
1426 | BT_ASSERT(ret == 0); | |
1427 | ret = bt_component_class_sink_set_input_port_connected_method(component_class_sink, | |
1428 | component_class_sink_input_port_connected); | |
1429 | BT_ASSERT(ret == 0); | |
1430 | ret = bt_component_class_sink_set_graph_is_configured_method(component_class_sink, | |
1431 | component_class_sink_graph_is_configured); | |
1432 | BT_ASSERT(ret == 0); | |
1433 | ret = bt_component_class_sink_set_query_method(component_class_sink, component_class_sink_query); | |
1434 | BT_ASSERT(ret == 0); | |
fd57054b PP |
1435 | ret = bt_component_class_sink_set_get_supported_mip_versions_method(component_class_sink, component_class_sink_get_supported_mip_versions); |
1436 | BT_ASSERT(ret == 0); | |
4212232c PP |
1437 | register_cc_ptr_to_py_cls(component_class, py_cls); |
1438 | ||
1439 | end: | |
1440 | return component_class_sink; | |
1441 | } |