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6fa6bfa1 SM |
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 | ||
fb25b9e3 | 25 | %include <babeltrace2/graph/component-class.h> |
e4b56bb9 SM |
26 | %include <babeltrace2/graph/component-class-const.h> |
27 | %include <babeltrace2/graph/component-class-source-const.h> | |
28 | %include <babeltrace2/graph/component-class-source.h> | |
29 | %include <babeltrace2/graph/component-class-filter-const.h> | |
30 | %include <babeltrace2/graph/component-class-filter.h> | |
31 | %include <babeltrace2/graph/component-class-sink-const.h> | |
32 | %include <babeltrace2/graph/component-class-sink.h> | |
33 | %include <babeltrace2/graph/self-component-class-source.h> | |
34 | %include <babeltrace2/graph/self-component-class-filter.h> | |
35 | %include <babeltrace2/graph/self-component-class-sink.h> | |
6fa6bfa1 SM |
36 | |
37 | %{ | |
8d6ef9df PP |
38 | #include "logging/comp-logging.h" |
39 | ||
6fa6bfa1 SM |
40 | /* |
41 | * This hash table associates a BT component class object address to a | |
42 | * user-defined Python class (PyObject *). The keys and values are NOT | |
43 | * owned by this hash table. The Python class objects are owned by the | |
44 | * Python module, which should not be unloaded until it is not possible | |
45 | * to create a user Python component anyway. | |
46 | * | |
47 | * This hash table is written to when a user-defined Python component | |
fb25b9e3 | 48 | * class is created by one of the bt_bt2_component_class_*_create() |
6fa6bfa1 SM |
49 | * functions. |
50 | * | |
51 | * This function is read from when a user calls bt_component_create() | |
52 | * with a component class pointer created by one of the functions above. | |
53 | * In this case, the original Python class needs to be found to | |
54 | * instantiate it and associate the created Python component object with | |
55 | * a BT component object instance. | |
56 | */ | |
57 | ||
58 | static GHashTable *bt_cc_ptr_to_py_cls; | |
59 | ||
efb177a7 SM |
60 | static |
61 | void register_cc_ptr_to_py_cls(struct bt_component_class *bt_cc, | |
6fa6bfa1 SM |
62 | PyObject *py_cls) |
63 | { | |
64 | if (!bt_cc_ptr_to_py_cls) { | |
65 | /* | |
66 | * Lazy-initializing this GHashTable because GLib | |
67 | * might not be initialized yet and it needs to be | |
68 | * before we call g_hash_table_new() | |
69 | */ | |
70 | BT_LOGD_STR("Creating native component class to Python component class hash table."); | |
71 | bt_cc_ptr_to_py_cls = g_hash_table_new(g_direct_hash, g_direct_equal); | |
72 | BT_ASSERT(bt_cc_ptr_to_py_cls); | |
73 | } | |
74 | ||
75 | g_hash_table_insert(bt_cc_ptr_to_py_cls, (gpointer) bt_cc, | |
76 | (gpointer) py_cls); | |
77 | } | |
78 | ||
efb177a7 SM |
79 | static |
80 | PyObject *lookup_cc_ptr_to_py_cls(const bt_component_class *bt_cc) | |
6fa6bfa1 SM |
81 | { |
82 | if (!bt_cc_ptr_to_py_cls) { | |
83 | BT_LOGW("Cannot look up Python component class because hash table is NULL: " | |
84 | "comp-cls-addr=%p", bt_cc); | |
85 | return NULL; | |
86 | } | |
87 | ||
88 | return (PyObject *) g_hash_table_lookup(bt_cc_ptr_to_py_cls, | |
89 | (gconstpointer) bt_cc); | |
90 | } | |
91 | ||
92 | ||
93 | /* | |
94 | * Useful Python objects. | |
95 | */ | |
96 | ||
97 | static PyObject *py_mod_bt2 = NULL; | |
98 | static PyObject *py_mod_bt2_exc_error_type = NULL; | |
493428a0 | 99 | static PyObject *py_mod_bt2_exc_memory_error = NULL; |
6fa6bfa1 SM |
100 | static PyObject *py_mod_bt2_exc_try_again_type = NULL; |
101 | static PyObject *py_mod_bt2_exc_stop_type = NULL; | |
7dd3e712 | 102 | static PyObject *py_mod_bt2_exc_unknown_object_type = NULL; |
6fa6bfa1 | 103 | |
efb177a7 | 104 | static |
fb25b9e3 | 105 | void bt_bt2_cc_init_from_bt2(void) |
6fa6bfa1 SM |
106 | { |
107 | /* | |
108 | * This is called once the bt2 package is loaded. | |
109 | * | |
110 | * Those modules and functions are needed while the package is | |
111 | * used. Loading them here is safe because we know the bt2 | |
112 | * package is imported, and we know that the user cannot use the | |
113 | * code here without importing bt2 first. | |
114 | */ | |
115 | py_mod_bt2 = PyImport_ImportModule("bt2"); | |
116 | BT_ASSERT(py_mod_bt2); | |
117 | py_mod_bt2_exc_error_type = | |
614743a5 | 118 | PyObject_GetAttrString(py_mod_bt2, "_Error"); |
6fa6bfa1 | 119 | BT_ASSERT(py_mod_bt2_exc_error_type); |
493428a0 | 120 | py_mod_bt2_exc_memory_error = |
614743a5 | 121 | PyObject_GetAttrString(py_mod_bt2, "_MemoryError"); |
493428a0 | 122 | BT_ASSERT(py_mod_bt2_exc_memory_error); |
6fa6bfa1 SM |
123 | py_mod_bt2_exc_try_again_type = |
124 | PyObject_GetAttrString(py_mod_bt2, "TryAgain"); | |
125 | BT_ASSERT(py_mod_bt2_exc_try_again_type); | |
126 | py_mod_bt2_exc_stop_type = | |
127 | PyObject_GetAttrString(py_mod_bt2, "Stop"); | |
128 | BT_ASSERT(py_mod_bt2_exc_stop_type); | |
7dd3e712 SM |
129 | py_mod_bt2_exc_unknown_object_type = |
130 | PyObject_GetAttrString(py_mod_bt2, "UnknownObject"); | |
131 | BT_ASSERT(py_mod_bt2_exc_unknown_object_type); | |
6fa6bfa1 SM |
132 | } |
133 | ||
efb177a7 | 134 | static |
fb25b9e3 | 135 | void bt_bt2_cc_exit_handler(void) |
6fa6bfa1 SM |
136 | { |
137 | /* | |
138 | * This is an exit handler (set by the bt2 package). | |
139 | * | |
140 | * We only give back the references that we took in | |
fb25b9e3 | 141 | * bt_bt2_cc_init_from_bt2() here. The global variables continue |
6fa6bfa1 SM |
142 | * to exist for the code of this file, but they are now borrowed |
143 | * references. If this code is executed, it means that somehow | |
144 | * the modules are still loaded, so it should be safe to use | |
145 | * them even without a strong reference. | |
146 | * | |
147 | * We cannot do this in the library's destructor because it | |
148 | * gets executed once Python is already finalized. | |
149 | */ | |
150 | Py_XDECREF(py_mod_bt2); | |
151 | Py_XDECREF(py_mod_bt2_exc_error_type); | |
152 | Py_XDECREF(py_mod_bt2_exc_try_again_type); | |
153 | Py_XDECREF(py_mod_bt2_exc_stop_type); | |
7dd3e712 | 154 | Py_XDECREF(py_mod_bt2_exc_unknown_object_type); |
6fa6bfa1 SM |
155 | } |
156 | ||
157 | ||
158 | /* Library destructor */ | |
159 | ||
160 | __attribute__((destructor)) | |
efb177a7 | 161 | static |
fb25b9e3 | 162 | void native_comp_class_dtor(void) { |
6fa6bfa1 SM |
163 | /* Destroy component class association hash table */ |
164 | if (bt_cc_ptr_to_py_cls) { | |
165 | BT_LOGD_STR("Destroying native component class to Python component class hash table."); | |
166 | g_hash_table_destroy(bt_cc_ptr_to_py_cls); | |
167 | } | |
168 | } | |
169 | ||
3b2be708 SM |
170 | static |
171 | void restore_current_thread_error_and_append_exception_chain_recursive( | |
8d6ef9df | 172 | int active_log_level, PyObject *py_exc_value, |
3b2be708 SM |
173 | bt_self_component_class *self_component_class, |
174 | bt_self_component *self_component, | |
175 | bt_self_message_iterator *self_message_iterator, | |
176 | const char *module_name) | |
177 | { | |
178 | PyObject *py_exc_cause_value; | |
179 | PyObject *py_exc_type = NULL; | |
180 | PyObject *py_exc_tb = NULL; | |
181 | GString *gstr = NULL; | |
182 | ||
183 | /* If this exception has a cause, handle that one first. */ | |
184 | py_exc_cause_value = PyException_GetCause(py_exc_value); | |
185 | if (py_exc_cause_value) { | |
186 | restore_current_thread_error_and_append_exception_chain_recursive( | |
8d6ef9df PP |
187 | active_log_level, py_exc_cause_value, |
188 | self_component_class, self_component, | |
189 | self_message_iterator, module_name); | |
3b2be708 SM |
190 | } |
191 | ||
192 | /* | |
614743a5 | 193 | * If the raised exception is a bt2._Error, restore the wrapped error. |
3b2be708 SM |
194 | */ |
195 | if (PyErr_GivenExceptionMatches(py_exc_value, py_mod_bt2_exc_error_type)) { | |
196 | PyObject *py_error_swig_ptr; | |
197 | const bt_error *error; | |
198 | int ret; | |
199 | ||
200 | /* | |
614743a5 | 201 | * We never raise a bt2._Error with a cause: it should be the |
3b2be708 SM |
202 | * end of the chain. |
203 | */ | |
204 | BT_ASSERT(!py_exc_cause_value); | |
205 | ||
206 | /* | |
207 | * We steal the error object from the exception, to move | |
208 | * it back as the current thread's error. | |
209 | */ | |
210 | py_error_swig_ptr = PyObject_GetAttrString(py_exc_value, "_ptr"); | |
211 | BT_ASSERT(py_error_swig_ptr); | |
212 | ||
213 | ret = PyObject_SetAttrString(py_exc_value, "_ptr", Py_None); | |
214 | BT_ASSERT(ret == 0); | |
215 | ||
216 | ret = SWIG_ConvertPtr(py_error_swig_ptr, (void **) &error, | |
217 | SWIGTYPE_p_bt_error, 0); | |
218 | BT_ASSERT(ret == 0); | |
219 | ||
220 | BT_CURRENT_THREAD_MOVE_ERROR_AND_RESET(error); | |
221 | ||
222 | Py_DECREF(py_error_swig_ptr); | |
223 | } | |
224 | ||
225 | py_exc_type = PyObject_Type(py_exc_value); | |
226 | py_exc_tb = PyException_GetTraceback(py_exc_value); | |
227 | ||
228 | gstr = bt_py_common_format_exception(py_exc_type, py_exc_value, | |
8d6ef9df | 229 | py_exc_tb, active_log_level, false); |
3b2be708 SM |
230 | if (!gstr) { |
231 | /* bt_py_common_format_exception has already warned. */ | |
232 | goto end; | |
233 | } | |
234 | ||
235 | if (self_component_class) { | |
236 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_COMPONENT_CLASS( | |
237 | self_component_class, "%s", gstr->str); | |
238 | } else if (self_component) { | |
239 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_COMPONENT( | |
240 | self_component, "%s", gstr->str); | |
241 | } else if (self_message_iterator) { | |
242 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR( | |
243 | self_message_iterator, "%s", gstr->str); | |
244 | } else { | |
245 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN( | |
246 | module_name, "%s", gstr->str); | |
247 | } | |
248 | ||
249 | end: | |
250 | if (gstr) { | |
251 | g_string_free(gstr, TRUE); | |
252 | } | |
253 | ||
254 | Py_XDECREF(py_exc_cause_value); | |
255 | Py_XDECREF(py_exc_type); | |
256 | Py_XDECREF(py_exc_tb); | |
257 | } | |
258 | ||
259 | /* | |
260 | * If you have the following code: | |
261 | * | |
262 | * try: | |
263 | * try: | |
264 | * something_that_raises_bt2_error() | |
614743a5 | 265 | * except bt2._Error as e1: |
3b2be708 SM |
266 | * raise ValueError from e1 |
267 | * except ValueError as e2: | |
268 | * raise TypeError from e2 | |
269 | * | |
270 | * We will have the following exception chain: | |
271 | * | |
614743a5 | 272 | * TypeError -> ValueError -> bt2._Error |
3b2be708 SM |
273 | * |
274 | * Where the TypeError is the current exception (obtained from PyErr_Fetch). | |
275 | * | |
614743a5 | 276 | * The bt2._Error contains a `struct bt_error *` that used to be the current |
3b2be708 SM |
277 | * thread's error, at the moment the exception was raised. |
278 | * | |
614743a5 | 279 | * This function gets to the bt2._Error and restores the wrapped |
3b2be708 SM |
280 | * `struct bt_error *` as the current thread's error. |
281 | * | |
282 | * Then, for each exception in the chain, starting with the oldest one, it adds | |
283 | * an error cause to the current thread's error. | |
284 | */ | |
285 | static | |
286 | void restore_bt_error_and_append_current_exception_chain( | |
8d6ef9df | 287 | int active_log_level, |
3b2be708 SM |
288 | bt_self_component_class *self_component_class, |
289 | bt_self_component *self_component, | |
290 | bt_self_message_iterator *self_message_iterator, | |
291 | const char *module_name) | |
292 | { | |
293 | BT_ASSERT(PyErr_Occurred()); | |
294 | ||
295 | /* Used to access and restore the current exception. */ | |
296 | PyObject *py_exc_type; | |
297 | PyObject *py_exc_value; | |
298 | PyObject *py_exc_tb; | |
299 | ||
300 | /* Fetch and normalize the Python exception. */ | |
301 | PyErr_Fetch(&py_exc_type, &py_exc_value, &py_exc_tb); | |
302 | PyErr_NormalizeException(&py_exc_type, &py_exc_value, &py_exc_tb); | |
303 | BT_ASSERT(py_exc_type); | |
304 | BT_ASSERT(py_exc_value); | |
305 | BT_ASSERT(py_exc_tb); | |
306 | ||
307 | /* | |
308 | * Set the exception's traceback so it's possible to get it using | |
309 | * PyException_GetTraceback in | |
310 | * restore_current_thread_error_and_append_exception_chain_recursive. | |
311 | */ | |
312 | PyException_SetTraceback(py_exc_value, py_exc_tb); | |
313 | ||
8d6ef9df PP |
314 | restore_current_thread_error_and_append_exception_chain_recursive( |
315 | active_log_level, py_exc_value, self_component_class, | |
316 | self_component, self_message_iterator, module_name); | |
3b2be708 SM |
317 | |
318 | PyErr_Restore(py_exc_type, py_exc_value, py_exc_tb); | |
319 | } | |
320 | ||
fb25b9e3 | 321 | static inline |
8d6ef9df PP |
322 | void log_exception_and_maybe_append_error(int func_log_level, |
323 | int active_log_level, bool append_error, | |
f8d71b59 SM |
324 | bt_self_component_class *self_component_class, |
325 | bt_self_component *self_component, | |
3b2be708 SM |
326 | bt_self_message_iterator *self_message_iterator, |
327 | const char *module_name) | |
6fa6bfa1 | 328 | { |
2d7aa9b6 | 329 | GString *gstr; |
6fa6bfa1 | 330 | |
8e01f2d9 | 331 | BT_ASSERT(PyErr_Occurred()); |
8d6ef9df | 332 | gstr = bt_py_common_format_current_exception(active_log_level); |
2d7aa9b6 | 333 | if (!gstr) { |
f33c35fb | 334 | /* bt_py_common_format_current_exception() logs errors */ |
6fa6bfa1 SM |
335 | goto end; |
336 | } | |
337 | ||
8d6ef9df PP |
338 | BT_COMP_LOG_CUR_LVL(func_log_level, active_log_level, self_component, |
339 | "%s", gstr->str); | |
6fa6bfa1 | 340 | |
f8d71b59 | 341 | if (append_error) { |
3b2be708 | 342 | restore_bt_error_and_append_current_exception_chain( |
8d6ef9df | 343 | active_log_level, self_component_class, self_component, |
3b2be708 SM |
344 | self_message_iterator, module_name); |
345 | ||
f8d71b59 SM |
346 | } |
347 | ||
6fa6bfa1 | 348 | end: |
2d7aa9b6 PP |
349 | if (gstr) { |
350 | g_string_free(gstr, TRUE); | |
6fa6bfa1 | 351 | } |
6fa6bfa1 SM |
352 | } |
353 | ||
8d6ef9df PP |
354 | static |
355 | bt_logging_level get_self_component_log_level(bt_self_component *self_comp) | |
356 | { | |
357 | return bt_component_get_logging_level( | |
358 | bt_self_component_as_component(self_comp)); | |
359 | } | |
360 | ||
361 | static | |
362 | bt_logging_level get_self_message_iterator_log_level( | |
363 | bt_self_message_iterator *self_msg_iter) | |
364 | { | |
365 | bt_self_component *self_comp = | |
366 | bt_self_message_iterator_borrow_component(self_msg_iter); | |
367 | ||
368 | return get_self_component_log_level(self_comp); | |
369 | } | |
370 | ||
fb25b9e3 | 371 | static inline |
8d6ef9df | 372 | void loge_exception(const char *module_name, int active_log_level) |
6fa6bfa1 | 373 | { |
8d6ef9df PP |
374 | log_exception_and_maybe_append_error(BT_LOG_ERROR, active_log_level, |
375 | true, NULL, NULL, NULL, module_name); | |
f8d71b59 SM |
376 | } |
377 | ||
378 | static | |
379 | void loge_exception_message_iterator( | |
380 | bt_self_message_iterator *self_message_iterator) | |
381 | { | |
8d6ef9df PP |
382 | bt_logging_level log_level = get_self_message_iterator_log_level( |
383 | self_message_iterator); | |
384 | ||
385 | log_exception_and_maybe_append_error(BT_LOG_ERROR, log_level, | |
386 | true, NULL, NULL, self_message_iterator, NULL); | |
6fa6bfa1 SM |
387 | } |
388 | ||
fb25b9e3 | 389 | static inline |
8d6ef9df | 390 | void logw_exception(int active_log_level) |
6fa6bfa1 | 391 | { |
8d6ef9df PP |
392 | log_exception_and_maybe_append_error(BT_LOG_WARNING, active_log_level, |
393 | false, NULL, NULL, NULL, NULL); | |
6fa6bfa1 SM |
394 | } |
395 | ||
fb25b9e3 | 396 | static inline |
f8d71b59 SM |
397 | int py_exc_to_status(bt_self_component_class *self_component_class, |
398 | bt_self_component *self_component, | |
3b2be708 | 399 | bt_self_message_iterator *self_message_iterator, |
8d6ef9df | 400 | const char *module_name, int active_log_level) |
6fa6bfa1 | 401 | { |
fb25b9e3 | 402 | int status = __BT_FUNC_STATUS_OK; |
6fa6bfa1 SM |
403 | PyObject *exc = PyErr_Occurred(); |
404 | ||
405 | if (!exc) { | |
406 | goto end; | |
407 | } | |
408 | ||
409 | if (PyErr_GivenExceptionMatches(exc, | |
fb25b9e3 PP |
410 | py_mod_bt2_exc_try_again_type)) { |
411 | status = __BT_FUNC_STATUS_AGAIN; | |
6fa6bfa1 | 412 | } else if (PyErr_GivenExceptionMatches(exc, |
fb25b9e3 PP |
413 | py_mod_bt2_exc_stop_type)) { |
414 | status = __BT_FUNC_STATUS_END; | |
6fa6bfa1 | 415 | } else if (PyErr_GivenExceptionMatches(exc, |
7dd3e712 SM |
416 | py_mod_bt2_exc_unknown_object_type)) { |
417 | status = __BT_FUNC_STATUS_UNKNOWN_OBJECT; | |
6fa6bfa1 | 418 | } else { |
8d6ef9df PP |
419 | /* |
420 | * Unknown exception: convert to general error. | |
421 | * | |
422 | * Because we only want to fetch the log level when | |
423 | * we actually get an exception, and not systematically | |
424 | * when we call py_exc_to_status() (as py_exc_to_status() | |
425 | * can return `__BT_FUNC_STATUS_OK`), we get it here | |
426 | * depending on the actor's type. | |
427 | */ | |
428 | if (self_component) { | |
429 | active_log_level = get_self_component_log_level( | |
430 | self_component); | |
431 | } else if (self_message_iterator) { | |
432 | active_log_level = get_self_message_iterator_log_level( | |
433 | self_message_iterator); | |
434 | } | |
435 | ||
436 | BT_ASSERT(active_log_level != -1); | |
437 | log_exception_and_maybe_append_error(BT_LOG_WARNING, | |
438 | active_log_level, true, | |
f8d71b59 | 439 | self_component_class, self_component, |
3b2be708 | 440 | self_message_iterator, module_name); |
493428a0 SM |
441 | |
442 | if (PyErr_GivenExceptionMatches(exc, | |
443 | py_mod_bt2_exc_memory_error)) { | |
444 | status = __BT_FUNC_STATUS_MEMORY_ERROR; | |
445 | } else { | |
446 | status = __BT_FUNC_STATUS_ERROR; | |
447 | } | |
6fa6bfa1 SM |
448 | } |
449 | ||
450 | end: | |
451 | PyErr_Clear(); | |
452 | return status; | |
453 | } | |
454 | ||
f8d71b59 | 455 | static |
8d6ef9df PP |
456 | int py_exc_to_status_component_class( |
457 | bt_self_component_class *self_component_class, | |
458 | int active_log_level) | |
f8d71b59 | 459 | { |
8d6ef9df PP |
460 | return py_exc_to_status(self_component_class, NULL, NULL, NULL, |
461 | active_log_level); | |
f8d71b59 SM |
462 | } |
463 | ||
464 | static | |
465 | int py_exc_to_status_component(bt_self_component *self_component) | |
466 | { | |
8d6ef9df | 467 | return py_exc_to_status(NULL, self_component, NULL, NULL, -1); |
f8d71b59 SM |
468 | } |
469 | ||
470 | static | |
471 | int py_exc_to_status_message_iterator( | |
472 | bt_self_message_iterator *self_message_iterator) | |
473 | { | |
8d6ef9df | 474 | return py_exc_to_status(NULL, NULL, self_message_iterator, NULL, -1); |
f8d71b59 SM |
475 | } |
476 | ||
fb25b9e3 PP |
477 | /* Component class proxy methods (delegate to the attached Python object) */ |
478 | ||
efb177a7 | 479 | static |
fb25b9e3 | 480 | bt_component_class_init_method_status component_class_init( |
6fa6bfa1 SM |
481 | bt_self_component *self_component, |
482 | void *self_component_v, | |
483 | swig_type_info *self_comp_cls_type_swig_type, | |
484 | const bt_value *params, | |
485 | void *init_method_data) | |
486 | { | |
487 | const bt_component *component = bt_self_component_as_component(self_component); | |
488 | const bt_component_class *component_class = bt_component_borrow_class_const(component); | |
fb25b9e3 | 489 | bt_component_class_init_method_status status = __BT_FUNC_STATUS_OK; |
6fa6bfa1 SM |
490 | PyObject *py_cls = NULL; |
491 | PyObject *py_comp = NULL; | |
492 | PyObject *py_params_ptr = NULL; | |
493 | PyObject *py_comp_ptr = NULL; | |
8d6ef9df PP |
494 | bt_logging_level log_level = get_self_component_log_level( |
495 | self_component); | |
6fa6bfa1 SM |
496 | |
497 | (void) init_method_data; | |
498 | ||
499 | BT_ASSERT(self_component); | |
500 | BT_ASSERT(self_component_v); | |
501 | BT_ASSERT(self_comp_cls_type_swig_type); | |
502 | ||
503 | /* | |
504 | * Get the user-defined Python class which created this | |
505 | * component's class in the first place (borrowed | |
506 | * reference). | |
507 | */ | |
508 | py_cls = lookup_cc_ptr_to_py_cls(component_class); | |
509 | if (!py_cls) { | |
8d6ef9df PP |
510 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
511 | "Cannot find Python class associated to native component class: " | |
6fa6bfa1 SM |
512 | "comp-cls-addr=%p", component_class); |
513 | goto error; | |
514 | } | |
515 | ||
516 | /* Parameters pointer -> SWIG pointer Python object */ | |
517 | py_params_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(params), | |
518 | SWIGTYPE_p_bt_value, 0); | |
519 | if (!py_params_ptr) { | |
8d6ef9df PP |
520 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
521 | "Failed to create a SWIG pointer object."); | |
6fa6bfa1 SM |
522 | goto error; |
523 | } | |
524 | ||
525 | py_comp_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_component_v), | |
526 | self_comp_cls_type_swig_type, 0); | |
527 | if (!py_comp_ptr) { | |
8d6ef9df PP |
528 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
529 | "Failed to create a SWIG pointer object."); | |
6fa6bfa1 SM |
530 | goto error; |
531 | } | |
532 | ||
533 | /* | |
534 | * Do the equivalent of this: | |
535 | * | |
deec48a6 | 536 | * py_comp = py_cls._bt_init_from_native(py_comp_ptr, py_params_ptr) |
6fa6bfa1 | 537 | * |
deec48a6 | 538 | * _UserComponentType._bt_init_from_native() calls the Python |
6fa6bfa1 SM |
539 | * component object's __init__() function. |
540 | */ | |
541 | py_comp = PyObject_CallMethod(py_cls, | |
deec48a6 | 542 | "_bt_init_from_native", "(OO)", py_comp_ptr, py_params_ptr); |
6fa6bfa1 | 543 | if (!py_comp) { |
8d6ef9df PP |
544 | BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_component, |
545 | "Failed to call Python class's _bt_init_from_native() method: " | |
6fa6bfa1 | 546 | "py-cls-addr=%p", py_cls); |
f8d71b59 SM |
547 | status = py_exc_to_status_component(self_component); |
548 | goto end; | |
6fa6bfa1 SM |
549 | } |
550 | ||
551 | /* | |
552 | * Our user Python component object is now fully created and | |
553 | * initialized by the user. Since we just created it, this | |
554 | * native component is its only (persistent) owner. | |
555 | */ | |
556 | bt_self_component_set_data(self_component, py_comp); | |
557 | py_comp = NULL; | |
558 | goto end; | |
559 | ||
560 | error: | |
fb25b9e3 | 561 | status = __BT_FUNC_STATUS_ERROR; |
6fa6bfa1 SM |
562 | |
563 | /* | |
564 | * Clear any exception: we're returning a bad status anyway. If | |
565 | * this call originated from Python (creation from a plugin's | |
566 | * component class, for example), then the user gets an | |
567 | * appropriate creation error. | |
568 | */ | |
569 | PyErr_Clear(); | |
570 | ||
571 | end: | |
572 | Py_XDECREF(py_comp); | |
573 | Py_XDECREF(py_params_ptr); | |
574 | Py_XDECREF(py_comp_ptr); | |
575 | return status; | |
576 | } | |
577 | ||
578 | /* | |
579 | * Method of bt_component_class_source to initialize a bt_self_component_source | |
580 | * of that class. | |
581 | */ | |
582 | ||
efb177a7 | 583 | static |
fb25b9e3 | 584 | bt_component_class_init_method_status component_class_source_init( |
efb177a7 | 585 | bt_self_component_source *self_component_source, |
6fa6bfa1 SM |
586 | const bt_value *params, void *init_method_data) |
587 | { | |
588 | bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source); | |
fb25b9e3 | 589 | return component_class_init( |
6fa6bfa1 SM |
590 | self_component, |
591 | self_component_source, | |
592 | SWIGTYPE_p_bt_self_component_source, | |
593 | params, init_method_data); | |
594 | } | |
595 | ||
efb177a7 | 596 | static |
fb25b9e3 | 597 | bt_component_class_init_method_status component_class_filter_init( |
efb177a7 | 598 | bt_self_component_filter *self_component_filter, |
6fa6bfa1 SM |
599 | const bt_value *params, void *init_method_data) |
600 | { | |
601 | bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter); | |
fb25b9e3 | 602 | return component_class_init( |
6fa6bfa1 SM |
603 | self_component, |
604 | self_component_filter, | |
605 | SWIGTYPE_p_bt_self_component_filter, | |
606 | params, init_method_data); | |
607 | } | |
608 | ||
efb177a7 | 609 | static |
fb25b9e3 | 610 | bt_component_class_init_method_status component_class_sink_init( |
efb177a7 | 611 | bt_self_component_sink *self_component_sink, |
6fa6bfa1 SM |
612 | const bt_value *params, void *init_method_data) |
613 | { | |
614 | bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink); | |
fb25b9e3 | 615 | return component_class_init( |
6fa6bfa1 SM |
616 | self_component, |
617 | self_component_sink, | |
618 | SWIGTYPE_p_bt_self_component_sink, | |
619 | params, init_method_data); | |
620 | } | |
621 | ||
efb177a7 | 622 | static |
fb25b9e3 | 623 | void component_class_finalize(bt_self_component *self_component) |
6fa6bfa1 SM |
624 | { |
625 | PyObject *py_comp = bt_self_component_get_data(self_component); | |
626 | BT_ASSERT(py_comp); | |
627 | ||
819d0ae7 | 628 | /* Call user's _user_finalize() method */ |
6fa6bfa1 | 629 | PyObject *py_method_result = PyObject_CallMethod(py_comp, |
819d0ae7 | 630 | "_user_finalize", NULL); |
6fa6bfa1 SM |
631 | |
632 | if (PyErr_Occurred()) { | |
8d6ef9df PP |
633 | bt_logging_level log_level = get_self_component_log_level( |
634 | self_component); | |
635 | ||
636 | BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_component, | |
637 | "User component's _user_finalize() method raised an exception: ignoring:"); | |
638 | logw_exception(log_level); | |
6fa6bfa1 SM |
639 | } |
640 | ||
641 | /* | |
819d0ae7 PP |
642 | * Ignore any exception raised by the _user_finalize() method |
643 | * because it won't change anything at this point: the component | |
644 | * is being destroyed anyway. | |
6fa6bfa1 SM |
645 | */ |
646 | PyErr_Clear(); | |
647 | Py_XDECREF(py_method_result); | |
648 | Py_DECREF(py_comp); | |
649 | } | |
650 | ||
efb177a7 | 651 | static |
fb25b9e3 | 652 | void component_class_source_finalize(bt_self_component_source *self_component_source) |
6fa6bfa1 SM |
653 | { |
654 | bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source); | |
fb25b9e3 | 655 | component_class_finalize(self_component); |
6fa6bfa1 SM |
656 | } |
657 | ||
efb177a7 | 658 | static |
fb25b9e3 | 659 | void component_class_filter_finalize(bt_self_component_filter *self_component_filter) |
6fa6bfa1 SM |
660 | { |
661 | bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter); | |
fb25b9e3 | 662 | component_class_finalize(self_component); |
6fa6bfa1 SM |
663 | } |
664 | ||
efb177a7 | 665 | static |
fb25b9e3 | 666 | void component_class_sink_finalize(bt_self_component_sink *self_component_sink) |
6fa6bfa1 SM |
667 | { |
668 | bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink); | |
fb25b9e3 | 669 | component_class_finalize(self_component); |
6fa6bfa1 SM |
670 | } |
671 | ||
39ddfa44 | 672 | static |
fb25b9e3 | 673 | bt_bool component_class_can_seek_beginning( |
39ddfa44 SM |
674 | bt_self_message_iterator *self_message_iterator) |
675 | { | |
676 | PyObject *py_iter; | |
677 | PyObject *py_result = NULL; | |
678 | bt_bool can_seek_beginning = false; | |
679 | ||
680 | py_iter = bt_self_message_iterator_get_data(self_message_iterator); | |
681 | BT_ASSERT(py_iter); | |
682 | ||
deec48a6 | 683 | py_result = PyObject_GetAttrString(py_iter, "_bt_can_seek_beginning_from_native"); |
39ddfa44 SM |
684 | |
685 | BT_ASSERT(!py_result || PyBool_Check(py_result)); | |
686 | ||
687 | if (py_result) { | |
688 | can_seek_beginning = PyObject_IsTrue(py_result); | |
689 | } else { | |
690 | /* | |
691 | * Once can_seek_beginning can report errors, convert the | |
692 | * exception to a status. For now, log and return false; | |
693 | */ | |
f8d71b59 | 694 | loge_exception_message_iterator(self_message_iterator); |
39ddfa44 SM |
695 | PyErr_Clear(); |
696 | } | |
697 | ||
698 | Py_XDECREF(py_result); | |
699 | ||
700 | return can_seek_beginning; | |
701 | } | |
702 | ||
703 | static | |
fb25b9e3 PP |
704 | bt_component_class_message_iterator_seek_beginning_method_status |
705 | component_class_seek_beginning(bt_self_message_iterator *self_message_iterator) | |
39ddfa44 SM |
706 | { |
707 | PyObject *py_iter; | |
708 | PyObject *py_result; | |
fb25b9e3 | 709 | bt_component_class_message_iterator_seek_beginning_method_status status; |
39ddfa44 SM |
710 | |
711 | py_iter = bt_self_message_iterator_get_data(self_message_iterator); | |
712 | BT_ASSERT(py_iter); | |
deec48a6 | 713 | py_result = PyObject_CallMethod(py_iter, "_bt_seek_beginning_from_native", |
fb25b9e3 | 714 | NULL); |
39ddfa44 | 715 | BT_ASSERT(!py_result || py_result == Py_None); |
3b2be708 | 716 | status = py_exc_to_status_message_iterator(self_message_iterator); |
39ddfa44 | 717 | Py_XDECREF(py_result); |
39ddfa44 SM |
718 | return status; |
719 | } | |
720 | ||
efb177a7 | 721 | static |
fb25b9e3 | 722 | bt_component_class_port_connected_method_status component_class_port_connected( |
6fa6bfa1 SM |
723 | bt_self_component *self_component, |
724 | void *self_component_port, | |
725 | swig_type_info *self_component_port_swig_type, | |
726 | bt_port_type self_component_port_type, | |
727 | const void *other_port, | |
728 | swig_type_info *other_port_swig_type) | |
729 | { | |
fb25b9e3 | 730 | bt_component_class_port_connected_method_status status; |
6fa6bfa1 SM |
731 | PyObject *py_comp = NULL; |
732 | PyObject *py_self_port_ptr = NULL; | |
733 | PyObject *py_other_port_ptr = NULL; | |
734 | PyObject *py_method_result = NULL; | |
8d6ef9df PP |
735 | bt_logging_level log_level = get_self_component_log_level( |
736 | self_component); | |
6fa6bfa1 SM |
737 | |
738 | py_comp = bt_self_component_get_data(self_component); | |
739 | BT_ASSERT(py_comp); | |
6fa6bfa1 SM |
740 | py_self_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_component_port), |
741 | self_component_port_swig_type, 0); | |
742 | if (!py_self_port_ptr) { | |
8d6ef9df PP |
743 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
744 | "Failed to create a SWIG pointer object."); | |
fb25b9e3 | 745 | status = __BT_FUNC_STATUS_MEMORY_ERROR; |
6fa6bfa1 SM |
746 | goto end; |
747 | } | |
748 | ||
749 | py_other_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(other_port), | |
750 | other_port_swig_type, 0); | |
751 | if (!py_other_port_ptr) { | |
8d6ef9df PP |
752 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
753 | "Failed to create a SWIG pointer object."); | |
fb25b9e3 | 754 | status = __BT_FUNC_STATUS_MEMORY_ERROR; |
6fa6bfa1 SM |
755 | goto end; } |
756 | ||
757 | py_method_result = PyObject_CallMethod(py_comp, | |
deec48a6 | 758 | "_bt_port_connected_from_native", "(OiO)", py_self_port_ptr, |
6fa6bfa1 | 759 | self_component_port_type, py_other_port_ptr); |
6fa6bfa1 | 760 | BT_ASSERT(!py_method_result || py_method_result == Py_None); |
f8d71b59 | 761 | status = py_exc_to_status_component(self_component); |
6fa6bfa1 SM |
762 | |
763 | end: | |
764 | Py_XDECREF(py_self_port_ptr); | |
765 | Py_XDECREF(py_other_port_ptr); | |
766 | Py_XDECREF(py_method_result); | |
6fa6bfa1 SM |
767 | return status; |
768 | } | |
769 | ||
efb177a7 | 770 | static |
fb25b9e3 PP |
771 | bt_component_class_port_connected_method_status |
772 | component_class_source_output_port_connected( | |
6fa6bfa1 SM |
773 | bt_self_component_source *self_component_source, |
774 | bt_self_component_port_output *self_component_port_output, | |
775 | const bt_port_input *other_port_input) | |
776 | { | |
777 | bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source); | |
778 | ||
fb25b9e3 | 779 | return component_class_port_connected( |
6fa6bfa1 SM |
780 | self_component, |
781 | self_component_port_output, | |
782 | SWIGTYPE_p_bt_self_component_port_output, | |
783 | BT_PORT_TYPE_OUTPUT, | |
784 | other_port_input, | |
785 | SWIGTYPE_p_bt_port_input); | |
786 | } | |
787 | ||
efb177a7 | 788 | static |
fb25b9e3 PP |
789 | bt_component_class_port_connected_method_status |
790 | component_class_filter_input_port_connected( | |
6fa6bfa1 SM |
791 | bt_self_component_filter *self_component_filter, |
792 | bt_self_component_port_input *self_component_port_input, | |
793 | const bt_port_output *other_port_output) | |
794 | { | |
795 | bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter); | |
796 | ||
fb25b9e3 | 797 | return component_class_port_connected( |
6fa6bfa1 SM |
798 | self_component, |
799 | self_component_port_input, | |
800 | SWIGTYPE_p_bt_self_component_port_input, | |
801 | BT_PORT_TYPE_INPUT, | |
802 | other_port_output, | |
803 | SWIGTYPE_p_bt_port_output); | |
804 | } | |
805 | ||
efb177a7 | 806 | static |
fb25b9e3 PP |
807 | bt_component_class_port_connected_method_status |
808 | component_class_filter_output_port_connected( | |
6fa6bfa1 SM |
809 | bt_self_component_filter *self_component_filter, |
810 | bt_self_component_port_output *self_component_port_output, | |
811 | const bt_port_input *other_port_input) | |
812 | { | |
813 | bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter); | |
814 | ||
fb25b9e3 | 815 | return component_class_port_connected( |
6fa6bfa1 SM |
816 | self_component, |
817 | self_component_port_output, | |
818 | SWIGTYPE_p_bt_self_component_port_output, | |
819 | BT_PORT_TYPE_OUTPUT, | |
820 | other_port_input, | |
821 | SWIGTYPE_p_bt_port_input); | |
822 | } | |
823 | ||
efb177a7 | 824 | static |
fb25b9e3 PP |
825 | bt_component_class_port_connected_method_status |
826 | component_class_sink_input_port_connected( | |
6fa6bfa1 SM |
827 | bt_self_component_sink *self_component_sink, |
828 | bt_self_component_port_input *self_component_port_input, | |
829 | const bt_port_output *other_port_output) | |
830 | { | |
831 | bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink); | |
832 | ||
fb25b9e3 | 833 | return component_class_port_connected( |
6fa6bfa1 SM |
834 | self_component, |
835 | self_component_port_input, | |
836 | SWIGTYPE_p_bt_self_component_port_input, | |
837 | BT_PORT_TYPE_INPUT, | |
838 | other_port_output, | |
839 | SWIGTYPE_p_bt_port_output); | |
840 | } | |
841 | ||
efb177a7 | 842 | static |
fb25b9e3 PP |
843 | bt_component_class_sink_graph_is_configured_method_status |
844 | component_class_sink_graph_is_configured( | |
efb177a7 | 845 | bt_self_component_sink *self_component_sink) |
6fa6bfa1 SM |
846 | { |
847 | PyObject *py_comp = NULL; | |
848 | PyObject *py_method_result = NULL; | |
fb25b9e3 | 849 | bt_component_class_sink_graph_is_configured_method_status status = __BT_FUNC_STATUS_OK; |
6fa6bfa1 SM |
850 | bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink); |
851 | ||
852 | py_comp = bt_self_component_get_data(self_component); | |
853 | py_method_result = PyObject_CallMethod(py_comp, | |
deec48a6 | 854 | "_bt_graph_is_configured_from_native", NULL); |
6fa6bfa1 | 855 | BT_ASSERT(!py_method_result || py_method_result == Py_None); |
f8d71b59 | 856 | status = py_exc_to_status_component(self_component); |
6fa6bfa1 | 857 | Py_XDECREF(py_method_result); |
6fa6bfa1 SM |
858 | return status; |
859 | } | |
860 | ||
efb177a7 | 861 | static |
fb25b9e3 | 862 | bt_component_class_query_method_status component_class_query( |
6fa6bfa1 | 863 | const bt_component_class *component_class, |
f8d71b59 | 864 | bt_self_component_class *self_component_class, |
6fa6bfa1 SM |
865 | const bt_query_executor *query_executor, |
866 | const char *object, const bt_value *params, | |
83da519a | 867 | bt_logging_level log_level, |
6fa6bfa1 SM |
868 | const bt_value **result) |
869 | { | |
870 | PyObject *py_cls = NULL; | |
871 | PyObject *py_params_ptr = NULL; | |
872 | PyObject *py_query_exec_ptr = NULL; | |
873 | PyObject *py_query_func = NULL; | |
874 | PyObject *py_object = NULL; | |
875 | PyObject *py_results_addr = NULL; | |
fb25b9e3 | 876 | bt_component_class_query_method_status status = __BT_FUNC_STATUS_OK; |
6fa6bfa1 SM |
877 | |
878 | py_cls = lookup_cc_ptr_to_py_cls(component_class); | |
879 | if (!py_cls) { | |
8d6ef9df PP |
880 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, |
881 | "Cannot find Python class associated to native component class: " | |
6fa6bfa1 SM |
882 | "comp-cls-addr=%p", component_class); |
883 | goto error; | |
884 | } | |
885 | ||
886 | py_params_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(params), | |
887 | SWIGTYPE_p_bt_value, 0); | |
888 | if (!py_params_ptr) { | |
8d6ef9df PP |
889 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, |
890 | "Failed to create a SWIG pointer object."); | |
6fa6bfa1 SM |
891 | goto error; |
892 | } | |
893 | ||
894 | py_query_exec_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(query_executor), | |
895 | SWIGTYPE_p_bt_query_executor, 0); | |
896 | if (!py_query_exec_ptr) { | |
8d6ef9df PP |
897 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, |
898 | "Failed to create a SWIG pointer object."); | |
6fa6bfa1 SM |
899 | goto error; |
900 | } | |
901 | ||
902 | py_object = SWIG_FromCharPtr(object); | |
903 | if (!py_object) { | |
8d6ef9df PP |
904 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, |
905 | "Failed to create a Python string."); | |
6fa6bfa1 SM |
906 | goto error; |
907 | } | |
908 | ||
909 | py_results_addr = PyObject_CallMethod(py_cls, | |
deec48a6 | 910 | "_bt_query_from_native", "(OOOi)", py_query_exec_ptr, |
83da519a | 911 | py_object, py_params_ptr, (int) log_level); |
6fa6bfa1 | 912 | if (!py_results_addr) { |
8d6ef9df PP |
913 | BT_LOG_WRITE_CUR_LVL(BT_LOG_WARNING, log_level, BT_LOG_TAG, |
914 | "Failed to call Python class's _bt_query_from_native() method: " | |
6fa6bfa1 | 915 | "py-cls-addr=%p", py_cls); |
8d6ef9df PP |
916 | status = py_exc_to_status_component_class(self_component_class, |
917 | log_level); | |
6fa6bfa1 SM |
918 | goto end; |
919 | } | |
920 | ||
921 | /* | |
922 | * The returned object, on success, is an integer object | |
923 | * (PyLong) containing the address of a BT value object (new | |
924 | * reference). | |
925 | */ | |
c240a5d8 | 926 | *result = PyLong_AsVoidPtr(py_results_addr); |
6fa6bfa1 SM |
927 | BT_ASSERT(!PyErr_Occurred()); |
928 | BT_ASSERT(*result); | |
929 | goto end; | |
930 | ||
931 | error: | |
932 | PyErr_Clear(); | |
fb25b9e3 | 933 | status = __BT_FUNC_STATUS_ERROR; |
6fa6bfa1 SM |
934 | |
935 | end: | |
936 | Py_XDECREF(py_params_ptr); | |
937 | Py_XDECREF(py_query_exec_ptr); | |
938 | Py_XDECREF(py_query_func); | |
939 | Py_XDECREF(py_object); | |
940 | Py_XDECREF(py_results_addr); | |
941 | return status; | |
942 | } | |
943 | ||
efb177a7 | 944 | static |
fb25b9e3 | 945 | bt_component_class_query_method_status component_class_source_query( |
6fa6bfa1 SM |
946 | bt_self_component_class_source *self_component_class_source, |
947 | const bt_query_executor *query_executor, | |
948 | const char *object, const bt_value *params, | |
83da519a | 949 | bt_logging_level log_level, |
6fa6bfa1 SM |
950 | const bt_value **result) |
951 | { | |
952 | const bt_component_class_source *component_class_source = bt_self_component_class_source_as_component_class_source(self_component_class_source); | |
953 | const bt_component_class *component_class = bt_component_class_source_as_component_class_const(component_class_source); | |
f8d71b59 | 954 | bt_self_component_class *self_component_class = bt_self_component_class_source_as_self_component_class(self_component_class_source); |
fb25b9e3 | 955 | |
f8d71b59 | 956 | return component_class_query(component_class, self_component_class, query_executor, object, params, log_level, result); |
6fa6bfa1 SM |
957 | } |
958 | ||
efb177a7 | 959 | static |
fb25b9e3 | 960 | bt_component_class_query_method_status component_class_filter_query( |
6fa6bfa1 SM |
961 | bt_self_component_class_filter *self_component_class_filter, |
962 | const bt_query_executor *query_executor, | |
963 | const char *object, const bt_value *params, | |
83da519a | 964 | bt_logging_level log_level, |
6fa6bfa1 SM |
965 | const bt_value **result) |
966 | { | |
967 | const bt_component_class_filter *component_class_filter = bt_self_component_class_filter_as_component_class_filter(self_component_class_filter); | |
968 | const bt_component_class *component_class = bt_component_class_filter_as_component_class_const(component_class_filter); | |
f8d71b59 | 969 | bt_self_component_class *self_component_class = bt_self_component_class_filter_as_self_component_class(self_component_class_filter); |
fb25b9e3 | 970 | |
f8d71b59 | 971 | return component_class_query(component_class, self_component_class, query_executor, object, params, log_level, result); |
6fa6bfa1 SM |
972 | } |
973 | ||
efb177a7 | 974 | static |
fb25b9e3 | 975 | bt_component_class_query_method_status component_class_sink_query( |
6fa6bfa1 SM |
976 | bt_self_component_class_sink *self_component_class_sink, |
977 | const bt_query_executor *query_executor, | |
978 | const char *object, const bt_value *params, | |
83da519a | 979 | bt_logging_level log_level, |
6fa6bfa1 SM |
980 | const bt_value **result) |
981 | { | |
982 | const bt_component_class_sink *component_class_sink = bt_self_component_class_sink_as_component_class_sink(self_component_class_sink); | |
983 | const bt_component_class *component_class = bt_component_class_sink_as_component_class_const(component_class_sink); | |
f8d71b59 | 984 | bt_self_component_class *self_component_class = bt_self_component_class_sink_as_self_component_class(self_component_class_sink); |
fb25b9e3 | 985 | |
f8d71b59 | 986 | return component_class_query(component_class, self_component_class, query_executor, object, params, log_level, result); |
6fa6bfa1 SM |
987 | } |
988 | ||
efb177a7 | 989 | static |
fb25b9e3 PP |
990 | bt_component_class_message_iterator_init_method_status |
991 | component_class_message_iterator_init( | |
6fa6bfa1 SM |
992 | bt_self_message_iterator *self_message_iterator, |
993 | bt_self_component *self_component, | |
994 | bt_self_component_port_output *self_component_port_output) | |
995 | { | |
fb25b9e3 | 996 | bt_component_class_message_iterator_init_method_status status = __BT_FUNC_STATUS_OK; |
6fa6bfa1 SM |
997 | PyObject *py_comp_cls = NULL; |
998 | PyObject *py_iter_cls = NULL; | |
999 | PyObject *py_iter_ptr = NULL; | |
a4dcfa96 | 1000 | PyObject *py_component_port_output_ptr = NULL; |
6fa6bfa1 SM |
1001 | PyObject *py_init_method_result = NULL; |
1002 | PyObject *py_iter = NULL; | |
1003 | PyObject *py_comp; | |
8d6ef9df PP |
1004 | bt_logging_level log_level = get_self_component_log_level( |
1005 | self_component); | |
6fa6bfa1 SM |
1006 | |
1007 | py_comp = bt_self_component_get_data(self_component); | |
1008 | ||
fa4c33e3 | 1009 | /* Find user's Python message iterator class */ |
6fa6bfa1 SM |
1010 | py_comp_cls = PyObject_GetAttrString(py_comp, "__class__"); |
1011 | if (!py_comp_cls) { | |
8d6ef9df PP |
1012 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
1013 | "Cannot get Python object's `__class__` attribute."); | |
f8d71b59 | 1014 | goto python_error; |
6fa6bfa1 SM |
1015 | } |
1016 | ||
1017 | py_iter_cls = PyObject_GetAttrString(py_comp_cls, "_iter_cls"); | |
1018 | if (!py_iter_cls) { | |
8d6ef9df PP |
1019 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
1020 | "Cannot get Python class's `_iter_cls` attribute."); | |
f8d71b59 | 1021 | goto python_error; |
6fa6bfa1 SM |
1022 | } |
1023 | ||
1024 | py_iter_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_message_iterator), | |
1025 | SWIGTYPE_p_bt_self_message_iterator, 0); | |
1026 | if (!py_iter_ptr) { | |
f8d71b59 SM |
1027 | const char *err = "Failed to create a SWIG pointer object."; |
1028 | ||
8d6ef9df PP |
1029 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
1030 | "%s", err); | |
f8d71b59 SM |
1031 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR( |
1032 | self_message_iterator, err); | |
6fa6bfa1 SM |
1033 | goto error; |
1034 | } | |
1035 | ||
1036 | /* | |
fa4c33e3 | 1037 | * Create object with borrowed native message iterator |
6fa6bfa1 SM |
1038 | * reference: |
1039 | * | |
1040 | * py_iter = py_iter_cls.__new__(py_iter_cls, py_iter_ptr) | |
1041 | */ | |
1042 | py_iter = PyObject_CallMethod(py_iter_cls, "__new__", | |
1043 | "(OO)", py_iter_cls, py_iter_ptr); | |
1044 | if (!py_iter) { | |
8d6ef9df PP |
1045 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
1046 | "Failed to call Python class's __new__() method: " | |
6fa6bfa1 | 1047 | "py-cls-addr=%p", py_iter_cls); |
f8d71b59 | 1048 | goto python_error; |
6fa6bfa1 SM |
1049 | } |
1050 | ||
1051 | /* | |
1052 | * Initialize object: | |
1053 | * | |
a4dcfa96 SM |
1054 | * py_iter.__init__(self_output_port) |
1055 | * | |
3e2b0fcf | 1056 | * through the _init_for_native helper static method. |
6fa6bfa1 SM |
1057 | * |
1058 | * At this point, py_iter._ptr is set, so this initialization | |
1059 | * function has access to self._component (which gives it the | |
1060 | * user Python component object from which the iterator was | |
1061 | * created). | |
1062 | */ | |
3e2b0fcf SM |
1063 | py_component_port_output_ptr = SWIG_NewPointerObj( |
1064 | SWIG_as_voidptr(self_component_port_output), | |
a4dcfa96 SM |
1065 | SWIGTYPE_p_bt_self_component_port_output, 0); |
1066 | if (!py_component_port_output_ptr) { | |
f8d71b59 SM |
1067 | const char *err = "Failed to create a SWIG pointer object."; |
1068 | ||
8d6ef9df PP |
1069 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
1070 | "%s", err); | |
f8d71b59 SM |
1071 | BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR( |
1072 | self_message_iterator, err); | |
a4dcfa96 SM |
1073 | goto error; |
1074 | } | |
1075 | ||
fb25b9e3 | 1076 | py_init_method_result = PyObject_CallMethod(py_iter, |
deec48a6 | 1077 | "_bt_init_from_native", "O", py_component_port_output_ptr); |
6fa6bfa1 | 1078 | if (!py_init_method_result) { |
8d6ef9df PP |
1079 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component, |
1080 | "User's __init__() method failed:"); | |
f8d71b59 | 1081 | goto python_error; |
6fa6bfa1 SM |
1082 | } |
1083 | ||
1084 | /* | |
1085 | * Since the Python code can never instantiate a user-defined | |
fa4c33e3 SM |
1086 | * message iterator class, the native message iterator |
1087 | * object does NOT belong to a user Python message iterator | |
6fa6bfa1 | 1088 | * object (borrowed reference). However this Python object is |
fa4c33e3 | 1089 | * owned by this native message iterator object. |
6fa6bfa1 | 1090 | * |
fa4c33e3 SM |
1091 | * In the Python world, the lifetime of the native message |
1092 | * iterator is managed by a _GenericMessageIterator | |
6fa6bfa1 SM |
1093 | * instance: |
1094 | * | |
fa4c33e3 SM |
1095 | * _GenericMessageIterator instance: |
1096 | * owns a native bt_message_iterator object (iter) | |
6fa6bfa1 SM |
1097 | * owns a _UserMessageIterator instance (py_iter) |
1098 | * self._ptr is a borrowed reference to the | |
fa4c33e3 | 1099 | * native bt_private_connection_private_message_iterator |
6fa6bfa1 SM |
1100 | * object (iter) |
1101 | */ | |
1102 | bt_self_message_iterator_set_data(self_message_iterator, py_iter); | |
1103 | py_iter = NULL; | |
1104 | goto end; | |
1105 | ||
f8d71b59 SM |
1106 | python_error: |
1107 | /* Handling of errors that cause a Python exception to be set. */ | |
1108 | status = py_exc_to_status_message_iterator(self_message_iterator); | |
1109 | BT_ASSERT(status != __BT_FUNC_STATUS_OK); | |
1110 | goto end; | |
6fa6bfa1 | 1111 | |
f8d71b59 SM |
1112 | error: |
1113 | /* Handling of errors that don't cause a Python exception to be set. */ | |
1114 | status = __BT_FUNC_STATUS_ERROR; | |
6fa6bfa1 SM |
1115 | |
1116 | end: | |
f8d71b59 SM |
1117 | BT_ASSERT(!PyErr_Occurred()); |
1118 | ||
6fa6bfa1 SM |
1119 | Py_XDECREF(py_comp_cls); |
1120 | Py_XDECREF(py_iter_cls); | |
1121 | Py_XDECREF(py_iter_ptr); | |
a4dcfa96 | 1122 | Py_XDECREF(py_component_port_output_ptr); |
6fa6bfa1 SM |
1123 | Py_XDECREF(py_init_method_result); |
1124 | Py_XDECREF(py_iter); | |
1125 | return status; | |
1126 | } | |
1127 | ||
efb177a7 | 1128 | static |
fb25b9e3 PP |
1129 | bt_component_class_message_iterator_init_method_status |
1130 | component_class_source_message_iterator_init( | |
6fa6bfa1 SM |
1131 | bt_self_message_iterator *self_message_iterator, |
1132 | bt_self_component_source *self_component_source, | |
1133 | bt_self_component_port_output *self_component_port_output) | |
1134 | { | |
1135 | bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source); | |
fb25b9e3 PP |
1136 | |
1137 | return component_class_message_iterator_init(self_message_iterator, self_component, self_component_port_output); | |
6fa6bfa1 SM |
1138 | } |
1139 | ||
efb177a7 | 1140 | static |
fb25b9e3 PP |
1141 | bt_component_class_message_iterator_init_method_status |
1142 | component_class_filter_message_iterator_init( | |
6fa6bfa1 SM |
1143 | bt_self_message_iterator *self_message_iterator, |
1144 | bt_self_component_filter *self_component_filter, | |
1145 | bt_self_component_port_output *self_component_port_output) | |
1146 | { | |
1147 | bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter); | |
fb25b9e3 PP |
1148 | |
1149 | return component_class_message_iterator_init(self_message_iterator, self_component, self_component_port_output); | |
6fa6bfa1 SM |
1150 | } |
1151 | ||
efb177a7 | 1152 | static |
fb25b9e3 | 1153 | void component_class_message_iterator_finalize( |
6fa6bfa1 SM |
1154 | bt_self_message_iterator *message_iterator) |
1155 | { | |
8d6ef9df PP |
1156 | PyObject *py_message_iter = bt_self_message_iterator_get_data( |
1157 | message_iterator); | |
6fa6bfa1 SM |
1158 | PyObject *py_method_result = NULL; |
1159 | ||
1160 | BT_ASSERT(py_message_iter); | |
1161 | ||
819d0ae7 | 1162 | /* Call user's _user_finalize() method */ |
6fa6bfa1 | 1163 | py_method_result = PyObject_CallMethod(py_message_iter, |
819d0ae7 | 1164 | "_user_finalize", NULL); |
6fa6bfa1 SM |
1165 | |
1166 | if (PyErr_Occurred()) { | |
8d6ef9df PP |
1167 | bt_self_component *self_comp = |
1168 | bt_self_message_iterator_borrow_component( | |
1169 | message_iterator); | |
1170 | bt_logging_level log_level = get_self_component_log_level( | |
1171 | self_comp); | |
1172 | ||
1173 | BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_comp, | |
1174 | "User's _user_finalize() method raised an exception: ignoring:"); | |
1175 | logw_exception(get_self_message_iterator_log_level( | |
1176 | message_iterator)); | |
6fa6bfa1 SM |
1177 | } |
1178 | ||
1179 | /* | |
819d0ae7 PP |
1180 | * Ignore any exception raised by the _user_finalize() method |
1181 | * because it won't change anything at this point: the component | |
1182 | * is being destroyed anyway. | |
6fa6bfa1 SM |
1183 | */ |
1184 | PyErr_Clear(); | |
1185 | Py_XDECREF(py_method_result); | |
1186 | Py_DECREF(py_message_iter); | |
1187 | } | |
1188 | ||
1189 | /* Valid for both sources and filters. */ | |
1190 | ||
efb177a7 | 1191 | static |
fb25b9e3 PP |
1192 | bt_component_class_message_iterator_next_method_status |
1193 | component_class_message_iterator_next( | |
efb177a7 SM |
1194 | bt_self_message_iterator *message_iterator, |
1195 | bt_message_array_const msgs, uint64_t capacity, | |
1196 | uint64_t *count) | |
6fa6bfa1 | 1197 | { |
fb25b9e3 | 1198 | bt_component_class_message_iterator_next_method_status status = __BT_FUNC_STATUS_OK; |
6fa6bfa1 SM |
1199 | PyObject *py_message_iter = bt_self_message_iterator_get_data(message_iterator); |
1200 | PyObject *py_method_result = NULL; | |
1201 | ||
1202 | BT_ASSERT(py_message_iter); | |
1203 | py_method_result = PyObject_CallMethod(py_message_iter, | |
deec48a6 | 1204 | "_bt_next_from_native", NULL); |
6fa6bfa1 | 1205 | if (!py_method_result) { |
f8d71b59 | 1206 | status = py_exc_to_status_message_iterator(message_iterator); |
fb25b9e3 | 1207 | BT_ASSERT(status != __BT_FUNC_STATUS_OK); |
6fa6bfa1 SM |
1208 | goto end; |
1209 | } | |
1210 | ||
1211 | /* | |
1212 | * The returned object, on success, is an integer object | |
fa4c33e3 | 1213 | * (PyLong) containing the address of a native message |
6fa6bfa1 SM |
1214 | * object (which is now ours). |
1215 | */ | |
c240a5d8 | 1216 | msgs[0] = PyLong_AsVoidPtr(py_method_result); |
6fa6bfa1 SM |
1217 | *count = 1; |
1218 | ||
1219 | /* Clear potential overflow error; should never happen */ | |
1220 | BT_ASSERT(!PyErr_Occurred()); | |
1221 | goto end; | |
1222 | ||
1223 | end: | |
1224 | Py_XDECREF(py_method_result); | |
1225 | return status; | |
1226 | } | |
1227 | ||
efb177a7 | 1228 | static |
fb25b9e3 PP |
1229 | bt_component_class_sink_consume_method_status |
1230 | component_class_sink_consume(bt_self_component_sink *self_component_sink) | |
6fa6bfa1 SM |
1231 | { |
1232 | bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink); | |
1233 | PyObject *py_comp = bt_self_component_get_data(self_component); | |
1234 | PyObject *py_method_result = NULL; | |
fb25b9e3 | 1235 | bt_component_class_sink_consume_method_status status; |
6fa6bfa1 SM |
1236 | |
1237 | BT_ASSERT(py_comp); | |
1238 | py_method_result = PyObject_CallMethod(py_comp, | |
819d0ae7 | 1239 | "_user_consume", NULL); |
f8d71b59 | 1240 | status = py_exc_to_status_component(self_component); |
8d6ef9df | 1241 | BT_ASSERT(py_method_result || status != __BT_FUNC_STATUS_OK); |
6fa6bfa1 SM |
1242 | Py_XDECREF(py_method_result); |
1243 | return status; | |
1244 | } | |
1245 | ||
1246 | static | |
fb25b9e3 | 1247 | int component_class_set_help_and_desc( |
6fa6bfa1 SM |
1248 | bt_component_class *component_class, |
1249 | const char *description, const char *help) | |
1250 | { | |
1251 | int ret; | |
1252 | ||
1253 | if (description) { | |
1254 | ret = bt_component_class_set_description(component_class, description); | |
1255 | if (ret) { | |
1256 | BT_LOGE("Cannot set component class's description: " | |
1257 | "comp-cls-addr=%p", component_class); | |
1258 | goto end; | |
1259 | } | |
1260 | } | |
1261 | ||
1262 | if (help) { | |
1263 | ret = bt_component_class_set_help(component_class, help); | |
1264 | if (ret) { | |
1265 | BT_LOGE("Cannot set component class's help text: " | |
1266 | "comp-cls-addr=%p", component_class); | |
1267 | goto end; | |
1268 | } | |
1269 | } | |
1270 | ||
1271 | ret = 0; | |
1272 | ||
1273 | end: | |
1274 | return ret; | |
1275 | } | |
1276 | ||
1277 | static | |
fb25b9e3 | 1278 | bt_component_class_source *bt_bt2_component_class_source_create( |
6fa6bfa1 SM |
1279 | PyObject *py_cls, const char *name, const char *description, |
1280 | const char *help) | |
1281 | { | |
1282 | bt_component_class_source *component_class_source; | |
1283 | bt_component_class *component_class; | |
1284 | int ret; | |
1285 | ||
1286 | BT_ASSERT(py_cls); | |
6fa6bfa1 | 1287 | component_class_source = bt_component_class_source_create(name, |
fb25b9e3 | 1288 | component_class_message_iterator_next); |
6fa6bfa1 SM |
1289 | if (!component_class_source) { |
1290 | BT_LOGE_STR("Cannot create source component class."); | |
1291 | goto end; | |
1292 | } | |
1293 | ||
1294 | component_class = bt_component_class_source_as_component_class(component_class_source); | |
1295 | ||
fb25b9e3 | 1296 | if (component_class_set_help_and_desc(component_class, description, help)) { |
6fa6bfa1 SM |
1297 | goto end; |
1298 | } | |
1299 | ||
fb25b9e3 | 1300 | ret = bt_component_class_source_set_init_method(component_class_source, component_class_source_init); |
6fa6bfa1 | 1301 | BT_ASSERT(ret == 0); |
fb25b9e3 | 1302 | ret = bt_component_class_source_set_finalize_method(component_class_source, component_class_source_finalize); |
39ddfa44 SM |
1303 | BT_ASSERT(ret == 0); |
1304 | ret = bt_component_class_source_set_message_iterator_can_seek_beginning_method(component_class_source, | |
fb25b9e3 | 1305 | component_class_can_seek_beginning); |
39ddfa44 SM |
1306 | BT_ASSERT(ret == 0); |
1307 | ret = bt_component_class_source_set_message_iterator_seek_beginning_method(component_class_source, | |
fb25b9e3 | 1308 | component_class_seek_beginning); |
6fa6bfa1 | 1309 | BT_ASSERT(ret == 0); |
6fa6bfa1 | 1310 | ret = bt_component_class_source_set_output_port_connected_method(component_class_source, |
fb25b9e3 | 1311 | component_class_source_output_port_connected); |
6fa6bfa1 | 1312 | BT_ASSERT(ret == 0); |
fb25b9e3 | 1313 | ret = bt_component_class_source_set_query_method(component_class_source, component_class_source_query); |
6fa6bfa1 SM |
1314 | BT_ASSERT(ret == 0); |
1315 | ret = bt_component_class_source_set_message_iterator_init_method( | |
fb25b9e3 | 1316 | component_class_source, component_class_source_message_iterator_init); |
6fa6bfa1 SM |
1317 | BT_ASSERT(ret == 0); |
1318 | ret = bt_component_class_source_set_message_iterator_finalize_method( | |
fb25b9e3 | 1319 | component_class_source, component_class_message_iterator_finalize); |
6fa6bfa1 | 1320 | BT_ASSERT(ret == 0); |
6fa6bfa1 SM |
1321 | register_cc_ptr_to_py_cls(component_class, py_cls); |
1322 | ||
1323 | end: | |
1324 | return component_class_source; | |
1325 | } | |
1326 | ||
1327 | static | |
fb25b9e3 | 1328 | bt_component_class_filter *bt_bt2_component_class_filter_create( |
6fa6bfa1 SM |
1329 | PyObject *py_cls, const char *name, const char *description, |
1330 | const char *help) | |
1331 | { | |
1332 | bt_component_class *component_class; | |
1333 | bt_component_class_filter *component_class_filter; | |
1334 | int ret; | |
1335 | ||
1336 | BT_ASSERT(py_cls); | |
6fa6bfa1 | 1337 | component_class_filter = bt_component_class_filter_create(name, |
fb25b9e3 | 1338 | component_class_message_iterator_next); |
6fa6bfa1 SM |
1339 | if (!component_class_filter) { |
1340 | BT_LOGE_STR("Cannot create filter component class."); | |
1341 | goto end; | |
1342 | } | |
1343 | ||
1344 | component_class = bt_component_class_filter_as_component_class(component_class_filter); | |
1345 | ||
fb25b9e3 | 1346 | if (component_class_set_help_and_desc(component_class, description, help)) { |
6fa6bfa1 SM |
1347 | goto end; |
1348 | } | |
1349 | ||
fb25b9e3 | 1350 | ret = bt_component_class_filter_set_init_method(component_class_filter, component_class_filter_init); |
6fa6bfa1 | 1351 | BT_ASSERT(ret == 0); |
fb25b9e3 | 1352 | ret = bt_component_class_filter_set_finalize_method (component_class_filter, component_class_filter_finalize); |
6fa6bfa1 | 1353 | BT_ASSERT(ret == 0); |
39ddfa44 | 1354 | ret = bt_component_class_filter_set_message_iterator_can_seek_beginning_method(component_class_filter, |
fb25b9e3 | 1355 | component_class_can_seek_beginning); |
39ddfa44 SM |
1356 | BT_ASSERT(ret == 0); |
1357 | ret = bt_component_class_filter_set_message_iterator_seek_beginning_method(component_class_filter, | |
fb25b9e3 | 1358 | component_class_seek_beginning); |
39ddfa44 | 1359 | BT_ASSERT(ret == 0); |
6fa6bfa1 | 1360 | ret = bt_component_class_filter_set_input_port_connected_method(component_class_filter, |
fb25b9e3 | 1361 | component_class_filter_input_port_connected); |
6fa6bfa1 SM |
1362 | BT_ASSERT(ret == 0); |
1363 | ret = bt_component_class_filter_set_output_port_connected_method(component_class_filter, | |
fb25b9e3 | 1364 | component_class_filter_output_port_connected); |
6fa6bfa1 | 1365 | BT_ASSERT(ret == 0); |
fb25b9e3 | 1366 | ret = bt_component_class_filter_set_query_method(component_class_filter, component_class_filter_query); |
6fa6bfa1 SM |
1367 | BT_ASSERT(ret == 0); |
1368 | ret = bt_component_class_filter_set_message_iterator_init_method( | |
fb25b9e3 | 1369 | component_class_filter, component_class_filter_message_iterator_init); |
6fa6bfa1 SM |
1370 | BT_ASSERT(ret == 0); |
1371 | ret = bt_component_class_filter_set_message_iterator_finalize_method( | |
fb25b9e3 | 1372 | component_class_filter, component_class_message_iterator_finalize); |
6fa6bfa1 | 1373 | BT_ASSERT(ret == 0); |
6fa6bfa1 SM |
1374 | register_cc_ptr_to_py_cls(component_class, py_cls); |
1375 | ||
1376 | end: | |
1377 | return component_class_filter; | |
1378 | } | |
1379 | ||
1380 | static | |
fb25b9e3 | 1381 | bt_component_class_sink *bt_bt2_component_class_sink_create( |
6fa6bfa1 SM |
1382 | PyObject *py_cls, const char *name, const char *description, |
1383 | const char *help) | |
1384 | { | |
1385 | bt_component_class_sink *component_class_sink; | |
1386 | bt_component_class *component_class; | |
1387 | int ret; | |
1388 | ||
1389 | BT_ASSERT(py_cls); | |
fb25b9e3 | 1390 | component_class_sink = bt_component_class_sink_create(name, component_class_sink_consume); |
6fa6bfa1 SM |
1391 | |
1392 | if (!component_class_sink) { | |
1393 | BT_LOGE_STR("Cannot create sink component class."); | |
1394 | goto end; | |
1395 | } | |
1396 | ||
1397 | component_class = bt_component_class_sink_as_component_class(component_class_sink); | |
1398 | ||
fb25b9e3 | 1399 | if (component_class_set_help_and_desc(component_class, description, help)) { |
6fa6bfa1 SM |
1400 | goto end; |
1401 | } | |
1402 | ||
fb25b9e3 | 1403 | ret = bt_component_class_sink_set_init_method(component_class_sink, component_class_sink_init); |
6fa6bfa1 | 1404 | BT_ASSERT(ret == 0); |
fb25b9e3 | 1405 | ret = bt_component_class_sink_set_finalize_method(component_class_sink, component_class_sink_finalize); |
6fa6bfa1 | 1406 | BT_ASSERT(ret == 0); |
6fa6bfa1 | 1407 | ret = bt_component_class_sink_set_input_port_connected_method(component_class_sink, |
fb25b9e3 | 1408 | component_class_sink_input_port_connected); |
6fa6bfa1 SM |
1409 | BT_ASSERT(ret == 0); |
1410 | ret = bt_component_class_sink_set_graph_is_configured_method(component_class_sink, | |
fb25b9e3 | 1411 | component_class_sink_graph_is_configured); |
6fa6bfa1 | 1412 | BT_ASSERT(ret == 0); |
fb25b9e3 | 1413 | ret = bt_component_class_sink_set_query_method(component_class_sink, component_class_sink_query); |
6fa6bfa1 | 1414 | BT_ASSERT(ret == 0); |
6fa6bfa1 SM |
1415 | register_cc_ptr_to_py_cls(component_class, py_cls); |
1416 | ||
1417 | end: | |
1418 | return component_class_sink; | |
1419 | } | |
1420 | %} | |
1421 | ||
fb25b9e3 | 1422 | struct bt_component_class_source *bt_bt2_component_class_source_create( |
6fa6bfa1 SM |
1423 | PyObject *py_cls, const char *name, const char *description, |
1424 | const char *help); | |
fb25b9e3 | 1425 | struct bt_component_class_filter *bt_bt2_component_class_filter_create( |
6fa6bfa1 SM |
1426 | PyObject *py_cls, const char *name, const char *description, |
1427 | const char *help); | |
fb25b9e3 | 1428 | struct bt_component_class_sink *bt_bt2_component_class_sink_create( |
6fa6bfa1 SM |
1429 | PyObject *py_cls, const char *name, const char *description, |
1430 | const char *help); | |
fb25b9e3 PP |
1431 | void bt_bt2_cc_init_from_bt2(void); |
1432 | void bt_bt2_cc_exit_handler(void); |