Commit | Line | Data |
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55bb57e0 | 1 | /* |
e2f7325d | 2 | * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com> |
55bb57e0 | 3 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
55bb57e0 PP |
4 | * |
5 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
23 | * SOFTWARE. | |
24 | */ | |
25 | ||
3fe0bf43 PP |
26 | #define BT_LOG_TAG "PLUGIN-SO" |
27 | #include <babeltrace/lib-logging-internal.h> | |
28 | ||
c5b9b441 PP |
29 | #include <babeltrace/assert-internal.h> |
30 | #include <babeltrace/assert-pre-internal.h> | |
3d9990ac | 31 | #include <babeltrace/compiler-internal.h> |
55bb57e0 PP |
32 | #include <babeltrace/plugin/plugin-internal.h> |
33 | #include <babeltrace/plugin/plugin-so-internal.h> | |
34 | #include <babeltrace/plugin/plugin-dev.h> | |
35 | #include <babeltrace/plugin/plugin-internal.h> | |
b2e0c907 | 36 | #include <babeltrace/graph/component-class-internal.h> |
0d72b8c3 PP |
37 | #include <babeltrace/graph/component-class.h> |
38 | #include <babeltrace/graph/component-class-source.h> | |
39 | #include <babeltrace/graph/component-class-filter.h> | |
40 | #include <babeltrace/graph/component-class-sink.h> | |
c55a9f58 | 41 | #include <babeltrace/types.h> |
bfa9a4be | 42 | #include <babeltrace/list-internal.h> |
55bb57e0 | 43 | #include <string.h> |
0fbb9a9f | 44 | #include <stdlib.h> |
55bb57e0 PP |
45 | #include <glib.h> |
46 | #include <gmodule.h> | |
47 | ||
44a3451a | 48 | #define NATIVE_PLUGIN_SUFFIX "." G_MODULE_SUFFIX |
55bb57e0 PP |
49 | #define NATIVE_PLUGIN_SUFFIX_LEN sizeof(NATIVE_PLUGIN_SUFFIX) |
50 | #define LIBTOOL_PLUGIN_SUFFIX ".la" | |
51 | #define LIBTOOL_PLUGIN_SUFFIX_LEN sizeof(LIBTOOL_PLUGIN_SUFFIX) | |
52 | ||
53 | #define PLUGIN_SUFFIX_LEN max_t(size_t, sizeof(NATIVE_PLUGIN_SUFFIX), \ | |
54 | sizeof(LIBTOOL_PLUGIN_SUFFIX)) | |
55 | ||
52238017 | 56 | BT_PLUGIN_MODULE(); |
55bb57e0 PP |
57 | |
58 | /* | |
bfa9a4be MD |
59 | * This list, global to the library, keeps all component classes that |
60 | * have a reference to their shared library handles. It allows iteration | |
61 | * on all component classes still present when the destructor executes | |
62 | * to release the shared library handle references they might still have. | |
55bb57e0 | 63 | * |
bfa9a4be | 64 | * The list items are the component classes created with |
55bb57e0 PP |
65 | * bt_plugin_add_component_class(). They keep the shared library handle |
66 | * object created by their plugin alive so that the plugin's code is | |
67 | * not discarded when it could still be in use by living components | |
68 | * created from those component classes: | |
69 | * | |
bfa9a4be | 70 | * [component] --ref-> [component class]-> [shlib handle] |
55bb57e0 | 71 | * |
bfa9a4be | 72 | * It allows this use-case: |
55bb57e0 | 73 | * |
c8db3219 | 74 | * my_plugins = bt_plugin_find_all_from_file("/path/to/my-plugin.so"); |
55bb57e0 PP |
75 | * // instantiate components from a plugin's component classes |
76 | * // put plugins and free my_plugins here | |
77 | * // user code of instantiated components still exists | |
78 | * | |
bfa9a4be MD |
79 | * An entry is removed from this list when a component class is |
80 | * destroyed thanks to a custom destroy listener. When the entry is | |
81 | * removed, the entry is removed from the list, and we release the | |
82 | * reference on the shlib handle. Assuming the original plugin object | |
83 | * which contained some component classes is put first, when the last | |
84 | * component class is removed from this list, the shared library handle | |
85 | * object's reference count falls to zero and the shared library is | |
86 | * finally closed. | |
55bb57e0 | 87 | */ |
bfa9a4be | 88 | |
55bb57e0 | 89 | static |
bfa9a4be | 90 | BT_LIST_HEAD(component_class_list); |
55bb57e0 PP |
91 | |
92 | __attribute__((destructor)) static | |
bfa9a4be MD |
93 | void fini_comp_class_list(void) |
94 | { | |
95 | struct bt_component_class *comp_class, *tmp; | |
96 | ||
97 | bt_list_for_each_entry_safe(comp_class, tmp, &component_class_list, node) { | |
98 | bt_list_del(&comp_class->node); | |
65300d60 | 99 | BT_OBJECT_PUT_REF_AND_RESET(comp_class->so_handle); |
55bb57e0 | 100 | } |
d94d92ac | 101 | |
bfa9a4be | 102 | BT_LOGD_STR("Released references from all component classes to shared library handles."); |
55bb57e0 PP |
103 | } |
104 | ||
9724cce9 | 105 | static inline |
a21d1cb8 | 106 | const char *bt_self_plugin_status_string(enum bt_self_plugin_status status) |
9724cce9 PP |
107 | { |
108 | switch (status) { | |
a21d1cb8 PP |
109 | case BT_SELF_PLUGIN_STATUS_OK: |
110 | return "BT_SELF_PLUGIN_STATUS_OK"; | |
111 | case BT_SELF_PLUGIN_STATUS_ERROR: | |
112 | return "BT_SELF_PLUGIN_STATUS_ERROR"; | |
113 | case BT_SELF_PLUGIN_STATUS_NOMEM: | |
114 | return "BT_SELF_PLUGIN_STATUS_NOMEM"; | |
9724cce9 PP |
115 | default: |
116 | return "(unknown)"; | |
117 | } | |
118 | } | |
119 | ||
55bb57e0 PP |
120 | static |
121 | void bt_plugin_so_shared_lib_handle_destroy(struct bt_object *obj) | |
122 | { | |
123 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle; | |
124 | ||
f6ccaed9 | 125 | BT_ASSERT(obj); |
55bb57e0 PP |
126 | shared_lib_handle = container_of(obj, |
127 | struct bt_plugin_so_shared_lib_handle, base); | |
3fe0bf43 PP |
128 | const char *path = shared_lib_handle->path ? |
129 | shared_lib_handle->path->str : NULL; | |
130 | ||
131 | BT_LOGD("Destroying shared library handle: addr=%p, path=\"%s\"", | |
132 | shared_lib_handle, path); | |
55bb57e0 PP |
133 | |
134 | if (shared_lib_handle->init_called && shared_lib_handle->exit) { | |
3fe0bf43 | 135 | BT_LOGD_STR("Calling user's plugin exit function."); |
9724cce9 PP |
136 | shared_lib_handle->exit(); |
137 | BT_LOGD_STR("User function returned."); | |
55bb57e0 PP |
138 | } |
139 | ||
140 | if (shared_lib_handle->module) { | |
f1447220 PP |
141 | #ifndef NDEBUG |
142 | /* | |
143 | * Valgrind shows incomplete stack traces when | |
144 | * dynamically loaded libraries are closed before it | |
145 | * finishes. Use the BABELTRACE_NO_DLCLOSE in a debug | |
146 | * build to avoid this. | |
147 | */ | |
148 | const char *var = getenv("BABELTRACE_NO_DLCLOSE"); | |
149 | ||
150 | if (!var || strcmp(var, "1") != 0) { | |
151 | #endif | |
3fe0bf43 PP |
152 | BT_LOGD("Closing GModule: path=\"%s\"", path); |
153 | ||
f1447220 | 154 | if (!g_module_close(shared_lib_handle->module)) { |
3fe0bf43 PP |
155 | BT_LOGE("Cannot close GModule: %s: path=\"%s\"", |
156 | g_module_error(), path); | |
f1447220 | 157 | } |
db5504f9 PP |
158 | |
159 | shared_lib_handle->module = NULL; | |
f1447220 | 160 | #ifndef NDEBUG |
3fe0bf43 PP |
161 | } else { |
162 | BT_LOGD("Not closing GModule because `BABELTRACE_NO_DLCLOSE=1`: " | |
163 | "path=\"%s\"", path); | |
55bb57e0 | 164 | } |
f1447220 | 165 | #endif |
55bb57e0 PP |
166 | } |
167 | ||
168 | if (shared_lib_handle->path) { | |
169 | g_string_free(shared_lib_handle->path, TRUE); | |
db5504f9 | 170 | shared_lib_handle->path = NULL; |
55bb57e0 PP |
171 | } |
172 | ||
173 | g_free(shared_lib_handle); | |
174 | } | |
175 | ||
176 | static | |
177 | struct bt_plugin_so_shared_lib_handle *bt_plugin_so_shared_lib_handle_create( | |
178 | const char *path) | |
179 | { | |
180 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle = NULL; | |
181 | ||
3fe0bf43 | 182 | BT_LOGD("Creating shared library handle: path=\"%s\"", path); |
55bb57e0 PP |
183 | shared_lib_handle = g_new0(struct bt_plugin_so_shared_lib_handle, 1); |
184 | if (!shared_lib_handle) { | |
3fe0bf43 | 185 | BT_LOGE_STR("Failed to allocate one shared library handle."); |
55bb57e0 PP |
186 | goto error; |
187 | } | |
188 | ||
3fea54f6 PP |
189 | bt_object_init_shared(&shared_lib_handle->base, |
190 | bt_plugin_so_shared_lib_handle_destroy); | |
55bb57e0 PP |
191 | |
192 | if (!path) { | |
193 | goto end; | |
194 | } | |
195 | ||
196 | shared_lib_handle->path = g_string_new(path); | |
197 | if (!shared_lib_handle->path) { | |
3fe0bf43 | 198 | BT_LOGE_STR("Failed to allocate a GString."); |
55bb57e0 PP |
199 | goto error; |
200 | } | |
201 | ||
424b8c43 | 202 | shared_lib_handle->module = g_module_open(path, G_MODULE_BIND_LOCAL); |
55bb57e0 | 203 | if (!shared_lib_handle->module) { |
50ad9320 PP |
204 | /* |
205 | * DEBUG-level logging because we're only _trying_ to | |
206 | * open this file as a Babeltrace plugin: if it's not, | |
207 | * it's not an error. And because this can be tried | |
c8db3219 | 208 | * during bt_plugin_find_all_from_dir(), it's not even |
50ad9320 PP |
209 | * a warning. |
210 | */ | |
211 | BT_LOGD("Cannot open GModule: %s: path=\"%s\"", | |
3fe0bf43 | 212 | g_module_error(), path); |
55bb57e0 PP |
213 | goto error; |
214 | } | |
215 | ||
216 | goto end; | |
217 | ||
218 | error: | |
65300d60 | 219 | BT_OBJECT_PUT_REF_AND_RESET(shared_lib_handle); |
55bb57e0 PP |
220 | |
221 | end: | |
3fe0bf43 PP |
222 | if (shared_lib_handle) { |
223 | BT_LOGD("Created shared library handle: path=\"%s\", addr=%p", | |
224 | path, shared_lib_handle); | |
225 | } | |
226 | ||
55bb57e0 PP |
227 | return shared_lib_handle; |
228 | } | |
229 | ||
6fbd4105 | 230 | static |
55bb57e0 PP |
231 | void bt_plugin_so_destroy_spec_data(struct bt_plugin *plugin) |
232 | { | |
233 | struct bt_plugin_so_spec_data *spec = plugin->spec_data; | |
234 | ||
235 | if (!plugin->spec_data) { | |
236 | return; | |
237 | } | |
238 | ||
f6ccaed9 PP |
239 | BT_ASSERT(plugin->type == BT_PLUGIN_TYPE_SO); |
240 | BT_ASSERT(spec); | |
65300d60 | 241 | BT_OBJECT_PUT_REF_AND_RESET(spec->shared_lib_handle); |
55bb57e0 PP |
242 | g_free(plugin->spec_data); |
243 | plugin->spec_data = NULL; | |
244 | } | |
245 | ||
246 | /* | |
247 | * This function does the following: | |
248 | * | |
249 | * 1. Iterate on the plugin descriptor attributes section and set the | |
250 | * plugin's attributes depending on the attribute types. This | |
251 | * includes the name of the plugin, its description, and its | |
252 | * initialization function, for example. | |
253 | * | |
254 | * 2. Iterate on the component class descriptors section and create one | |
255 | * "full descriptor" (temporary structure) for each one that is found | |
256 | * and attached to our plugin descriptor. | |
257 | * | |
258 | * 3. Iterate on the component class descriptor attributes section and | |
259 | * set the corresponding full descriptor's attributes depending on | |
260 | * the attribute types. This includes the description of the | |
261 | * component class, as well as its initialization and destroy | |
262 | * methods. | |
263 | * | |
264 | * 4. Call the user's plugin initialization function, if any is | |
265 | * defined. | |
266 | * | |
267 | * 5. For each full component class descriptor, create a component class | |
268 | * object, set its optional attributes, and add it to the plugin | |
269 | * object. | |
270 | * | |
271 | * 6. Freeze the plugin object. | |
272 | */ | |
273 | static | |
274 | enum bt_plugin_status bt_plugin_so_init( | |
275 | struct bt_plugin *plugin, | |
276 | const struct __bt_plugin_descriptor *descriptor, | |
277 | struct __bt_plugin_descriptor_attribute const * const *attrs_begin, | |
278 | struct __bt_plugin_descriptor_attribute const * const *attrs_end, | |
279 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_begin, | |
280 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_end, | |
281 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_begin, | |
282 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_end) | |
283 | { | |
284 | /* | |
285 | * This structure's members point to the plugin's memory | |
286 | * (do NOT free). | |
287 | */ | |
288 | struct comp_class_full_descriptor { | |
289 | const struct __bt_plugin_component_class_descriptor *descriptor; | |
290 | const char *description; | |
279b3f15 | 291 | const char *help; |
d94d92ac PP |
292 | |
293 | union { | |
294 | struct { | |
0d72b8c3 PP |
295 | bt_component_class_source_init_method init; |
296 | bt_component_class_source_finalize_method finalize; | |
297 | bt_component_class_source_query_method query; | |
298 | bt_component_class_source_accept_output_port_connection_method accept_output_port_connection; | |
299 | bt_component_class_source_output_port_connected_method output_port_connected; | |
d6e69534 PP |
300 | bt_component_class_source_message_iterator_init_method msg_iter_init; |
301 | bt_component_class_source_message_iterator_finalize_method msg_iter_finalize; | |
d94d92ac PP |
302 | } source; |
303 | ||
304 | struct { | |
0d72b8c3 PP |
305 | bt_component_class_filter_init_method init; |
306 | bt_component_class_filter_finalize_method finalize; | |
307 | bt_component_class_filter_query_method query; | |
308 | bt_component_class_filter_accept_input_port_connection_method accept_input_port_connection; | |
309 | bt_component_class_filter_accept_output_port_connection_method accept_output_port_connection; | |
310 | bt_component_class_filter_input_port_connected_method input_port_connected; | |
311 | bt_component_class_filter_output_port_connected_method output_port_connected; | |
d6e69534 PP |
312 | bt_component_class_filter_message_iterator_init_method msg_iter_init; |
313 | bt_component_class_filter_message_iterator_finalize_method msg_iter_finalize; | |
d94d92ac PP |
314 | } filter; |
315 | ||
316 | struct { | |
0d72b8c3 PP |
317 | bt_component_class_sink_init_method init; |
318 | bt_component_class_sink_finalize_method finalize; | |
319 | bt_component_class_sink_query_method query; | |
320 | bt_component_class_sink_accept_input_port_connection_method accept_input_port_connection; | |
321 | bt_component_class_sink_input_port_connected_method input_port_connected; | |
d94d92ac PP |
322 | } sink; |
323 | } methods; | |
55bb57e0 PP |
324 | }; |
325 | ||
326 | enum bt_plugin_status status = BT_PLUGIN_STATUS_OK; | |
327 | struct __bt_plugin_descriptor_attribute const * const *cur_attr_ptr; | |
328 | struct __bt_plugin_component_class_descriptor const * const *cur_cc_descr_ptr; | |
329 | struct __bt_plugin_component_class_descriptor_attribute const * const *cur_cc_descr_attr_ptr; | |
330 | struct bt_plugin_so_spec_data *spec = plugin->spec_data; | |
331 | GArray *comp_class_full_descriptors; | |
332 | size_t i; | |
333 | int ret; | |
334 | ||
3fe0bf43 PP |
335 | BT_LOGD("Initializing plugin object from descriptors found in sections: " |
336 | "plugin-addr=%p, plugin-path=\"%s\", " | |
337 | "attrs-begin-addr=%p, attrs-end-addr=%p, " | |
338 | "cc-descr-begin-addr=%p, cc-descr-end-addr=%p, " | |
339 | "cc-descr-attrs-begin-addr=%p, cc-descr-attrs-end-addr=%p", | |
340 | plugin, | |
341 | spec->shared_lib_handle->path ? | |
342 | spec->shared_lib_handle->path->str : NULL, | |
343 | attrs_begin, attrs_end, | |
344 | cc_descriptors_begin, cc_descriptors_end, | |
345 | cc_descr_attrs_begin, cc_descr_attrs_end); | |
55bb57e0 PP |
346 | comp_class_full_descriptors = g_array_new(FALSE, TRUE, |
347 | sizeof(struct comp_class_full_descriptor)); | |
348 | if (!comp_class_full_descriptors) { | |
3fe0bf43 | 349 | BT_LOGE_STR("Failed to allocate a GArray."); |
55bb57e0 PP |
350 | status = BT_PLUGIN_STATUS_ERROR; |
351 | goto end; | |
352 | } | |
353 | ||
354 | /* Set mandatory attributes */ | |
355 | spec->descriptor = descriptor; | |
356 | bt_plugin_set_name(plugin, descriptor->name); | |
357 | ||
358 | /* | |
359 | * Find and set optional attributes attached to this plugin | |
360 | * descriptor. | |
361 | */ | |
362 | for (cur_attr_ptr = attrs_begin; cur_attr_ptr != attrs_end; cur_attr_ptr++) { | |
363 | const struct __bt_plugin_descriptor_attribute *cur_attr = | |
364 | *cur_attr_ptr; | |
365 | ||
52238017 MJ |
366 | if (cur_attr == NULL) { |
367 | continue; | |
368 | } | |
369 | ||
55bb57e0 PP |
370 | if (cur_attr->plugin_descriptor != descriptor) { |
371 | continue; | |
372 | } | |
373 | ||
374 | switch (cur_attr->type) { | |
375 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_INIT: | |
376 | spec->init = cur_attr->value.init; | |
377 | break; | |
378 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_EXIT: | |
379 | spec->shared_lib_handle->exit = cur_attr->value.exit; | |
380 | break; | |
381 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_AUTHOR: | |
382 | bt_plugin_set_author(plugin, cur_attr->value.author); | |
383 | break; | |
384 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_LICENSE: | |
385 | bt_plugin_set_license(plugin, cur_attr->value.license); | |
386 | break; | |
387 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_DESCRIPTION: | |
388 | bt_plugin_set_description(plugin, cur_attr->value.description); | |
389 | break; | |
390 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_VERSION: | |
391 | bt_plugin_set_version(plugin, | |
392 | (unsigned int) cur_attr->value.version.major, | |
393 | (unsigned int) cur_attr->value.version.minor, | |
394 | (unsigned int) cur_attr->value.version.patch, | |
395 | cur_attr->value.version.extra); | |
396 | break; | |
397 | default: | |
50ad9320 PP |
398 | /* |
399 | * WARN-level logging because this should not | |
400 | * happen with the appropriate ABI version. If | |
401 | * we're here, we know that for the reported | |
402 | * version of the ABI, this attribute is | |
403 | * unknown. | |
404 | */ | |
3fe0bf43 PP |
405 | BT_LOGW("Ignoring unknown plugin descriptor attribute: " |
406 | "plugin-path=\"%s\", plugin-name=\"%s\", " | |
407 | "attr-type-name=\"%s\", attr-type-id=%d", | |
408 | spec->shared_lib_handle->path ? | |
409 | spec->shared_lib_handle->path->str : | |
410 | NULL, | |
411 | descriptor->name, cur_attr->type_name, | |
412 | cur_attr->type); | |
55bb57e0 PP |
413 | break; |
414 | } | |
415 | } | |
416 | ||
417 | /* | |
418 | * Find component class descriptors attached to this plugin | |
419 | * descriptor and initialize corresponding full component class | |
420 | * descriptors in the array. | |
421 | */ | |
422 | for (cur_cc_descr_ptr = cc_descriptors_begin; cur_cc_descr_ptr != cc_descriptors_end; cur_cc_descr_ptr++) { | |
423 | const struct __bt_plugin_component_class_descriptor *cur_cc_descr = | |
424 | *cur_cc_descr_ptr; | |
425 | struct comp_class_full_descriptor full_descriptor = {0}; | |
426 | ||
52238017 MJ |
427 | if (cur_cc_descr == NULL) { |
428 | continue; | |
429 | } | |
430 | ||
55bb57e0 PP |
431 | if (cur_cc_descr->plugin_descriptor != descriptor) { |
432 | continue; | |
433 | } | |
434 | ||
435 | full_descriptor.descriptor = cur_cc_descr; | |
436 | g_array_append_val(comp_class_full_descriptors, | |
437 | full_descriptor); | |
438 | } | |
439 | ||
440 | /* | |
441 | * Find component class descriptor attributes attached to this | |
442 | * plugin descriptor and update corresponding full component | |
443 | * class descriptors in the array. | |
444 | */ | |
445 | for (cur_cc_descr_attr_ptr = cc_descr_attrs_begin; cur_cc_descr_attr_ptr != cc_descr_attrs_end; cur_cc_descr_attr_ptr++) { | |
446 | const struct __bt_plugin_component_class_descriptor_attribute *cur_cc_descr_attr = | |
447 | *cur_cc_descr_attr_ptr; | |
d94d92ac | 448 | enum bt_component_class_type cc_type; |
55bb57e0 | 449 | |
52238017 MJ |
450 | if (cur_cc_descr_attr == NULL) { |
451 | continue; | |
452 | } | |
453 | ||
55bb57e0 PP |
454 | if (cur_cc_descr_attr->comp_class_descriptor->plugin_descriptor != |
455 | descriptor) { | |
456 | continue; | |
457 | } | |
458 | ||
d94d92ac PP |
459 | cc_type = cur_cc_descr_attr->comp_class_descriptor->type; |
460 | ||
55bb57e0 PP |
461 | /* Find the corresponding component class descriptor entry */ |
462 | for (i = 0; i < comp_class_full_descriptors->len; i++) { | |
463 | struct comp_class_full_descriptor *cc_full_descr = | |
464 | &g_array_index(comp_class_full_descriptors, | |
465 | struct comp_class_full_descriptor, i); | |
466 | ||
d94d92ac | 467 | if (cur_cc_descr_attr->comp_class_descriptor != |
55bb57e0 | 468 | cc_full_descr->descriptor) { |
d94d92ac PP |
469 | continue; |
470 | } | |
471 | ||
472 | switch (cur_cc_descr_attr->type) { | |
473 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_DESCRIPTION: | |
474 | cc_full_descr->description = | |
475 | cur_cc_descr_attr->value.description; | |
476 | break; | |
477 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_HELP: | |
478 | cc_full_descr->help = | |
479 | cur_cc_descr_attr->value.help; | |
480 | break; | |
481 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_INIT_METHOD: | |
482 | switch (cc_type) { | |
483 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
484 | cc_full_descr->methods.source.init = | |
485 | cur_cc_descr_attr->value.source_init_method; | |
55bb57e0 | 486 | break; |
d94d92ac PP |
487 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
488 | cc_full_descr->methods.filter.init = | |
489 | cur_cc_descr_attr->value.filter_init_method; | |
279b3f15 | 490 | break; |
d94d92ac PP |
491 | case BT_COMPONENT_CLASS_TYPE_SINK: |
492 | cc_full_descr->methods.sink.init = | |
493 | cur_cc_descr_attr->value.sink_init_method; | |
55bb57e0 | 494 | break; |
d94d92ac PP |
495 | default: |
496 | abort(); | |
497 | } | |
498 | break; | |
499 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_FINALIZE_METHOD: | |
500 | switch (cc_type) { | |
501 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
502 | cc_full_descr->methods.source.finalize = | |
503 | cur_cc_descr_attr->value.source_finalize_method; | |
55bb57e0 | 504 | break; |
d94d92ac PP |
505 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
506 | cc_full_descr->methods.filter.finalize = | |
507 | cur_cc_descr_attr->value.filter_finalize_method; | |
8463eac2 | 508 | break; |
d94d92ac PP |
509 | case BT_COMPONENT_CLASS_TYPE_SINK: |
510 | cc_full_descr->methods.sink.finalize = | |
511 | cur_cc_descr_attr->value.sink_finalize_method; | |
72b913fb | 512 | break; |
d94d92ac PP |
513 | default: |
514 | abort(); | |
515 | } | |
516 | break; | |
517 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_QUERY_METHOD: | |
518 | switch (cc_type) { | |
519 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
520 | cc_full_descr->methods.source.query = | |
521 | cur_cc_descr_attr->value.source_query_method; | |
0d8b4d8e | 522 | break; |
d94d92ac PP |
523 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
524 | cc_full_descr->methods.filter.query = | |
525 | cur_cc_descr_attr->value.filter_query_method; | |
55bb57e0 | 526 | break; |
d94d92ac PP |
527 | case BT_COMPONENT_CLASS_TYPE_SINK: |
528 | cc_full_descr->methods.sink.query = | |
529 | cur_cc_descr_attr->value.sink_query_method; | |
55bb57e0 | 530 | break; |
d94d92ac PP |
531 | default: |
532 | abort(); | |
533 | } | |
534 | break; | |
535 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_ACCEPT_INPUT_PORT_CONNECTION_METHOD: | |
536 | switch (cc_type) { | |
537 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
538 | cc_full_descr->methods.filter.accept_input_port_connection = | |
539 | cur_cc_descr_attr->value.filter_accept_input_port_connection_method; | |
540 | break; | |
541 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
542 | cc_full_descr->methods.sink.accept_input_port_connection = | |
543 | cur_cc_descr_attr->value.sink_accept_input_port_connection_method; | |
544 | break; | |
545 | default: | |
546 | abort(); | |
547 | } | |
548 | break; | |
549 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_ACCEPT_OUTPUT_PORT_CONNECTION_METHOD: | |
550 | switch (cc_type) { | |
551 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
552 | cc_full_descr->methods.source.accept_output_port_connection = | |
553 | cur_cc_descr_attr->value.source_accept_output_port_connection_method; | |
554 | break; | |
555 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
556 | cc_full_descr->methods.filter.accept_output_port_connection = | |
557 | cur_cc_descr_attr->value.filter_accept_output_port_connection_method; | |
558 | break; | |
559 | default: | |
560 | abort(); | |
561 | } | |
562 | break; | |
563 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_INPUT_PORT_CONNECTED_METHOD: | |
564 | switch (cc_type) { | |
565 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
566 | cc_full_descr->methods.filter.input_port_connected = | |
567 | cur_cc_descr_attr->value.filter_input_port_connected_method; | |
568 | break; | |
569 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
570 | cc_full_descr->methods.sink.input_port_connected = | |
571 | cur_cc_descr_attr->value.sink_input_port_connected_method; | |
55bb57e0 | 572 | break; |
55bb57e0 | 573 | default: |
d94d92ac PP |
574 | abort(); |
575 | } | |
576 | break; | |
577 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_OUTPUT_PORT_CONNECTED_METHOD: | |
578 | switch (cc_type) { | |
579 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
580 | cc_full_descr->methods.source.output_port_connected = | |
581 | cur_cc_descr_attr->value.source_output_port_connected_method; | |
582 | break; | |
583 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
584 | cc_full_descr->methods.filter.output_port_connected = | |
585 | cur_cc_descr_attr->value.filter_output_port_connected_method; | |
55bb57e0 | 586 | break; |
d94d92ac PP |
587 | default: |
588 | abort(); | |
55bb57e0 | 589 | } |
d94d92ac | 590 | break; |
d6e69534 | 591 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_MSG_ITER_INIT_METHOD: |
d94d92ac PP |
592 | switch (cc_type) { |
593 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
d6e69534 PP |
594 | cc_full_descr->methods.source.msg_iter_init = |
595 | cur_cc_descr_attr->value.source_msg_iter_init_method; | |
d94d92ac PP |
596 | break; |
597 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
d6e69534 PP |
598 | cc_full_descr->methods.filter.msg_iter_init = |
599 | cur_cc_descr_attr->value.filter_msg_iter_init_method; | |
d94d92ac PP |
600 | break; |
601 | default: | |
602 | abort(); | |
603 | } | |
604 | break; | |
d6e69534 | 605 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_MSG_ITER_FINALIZE_METHOD: |
d94d92ac PP |
606 | switch (cc_type) { |
607 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
d6e69534 PP |
608 | cc_full_descr->methods.source.msg_iter_finalize = |
609 | cur_cc_descr_attr->value.source_msg_iter_finalize_method; | |
d94d92ac PP |
610 | break; |
611 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
d6e69534 PP |
612 | cc_full_descr->methods.filter.msg_iter_finalize = |
613 | cur_cc_descr_attr->value.filter_msg_iter_finalize_method; | |
d94d92ac PP |
614 | break; |
615 | default: | |
616 | abort(); | |
617 | } | |
618 | break; | |
619 | default: | |
620 | /* | |
621 | * WARN-level logging because this | |
622 | * should not happen with the | |
623 | * appropriate ABI version. If we're | |
624 | * here, we know that for the reported | |
625 | * version of the ABI, this attribute is | |
626 | * unknown. | |
627 | */ | |
628 | BT_LOGW("Ignoring unknown component class descriptor attribute: " | |
629 | "plugin-path=\"%s\", " | |
630 | "plugin-name=\"%s\", " | |
631 | "comp-class-name=\"%s\", " | |
632 | "comp-class-type=%s, " | |
633 | "attr-type-name=\"%s\", " | |
634 | "attr-type-id=%d", | |
635 | spec->shared_lib_handle->path ? | |
636 | spec->shared_lib_handle->path->str : | |
637 | NULL, | |
638 | descriptor->name, | |
639 | cur_cc_descr_attr->comp_class_descriptor->name, | |
640 | bt_component_class_type_string( | |
641 | cur_cc_descr_attr->comp_class_descriptor->type), | |
642 | cur_cc_descr_attr->type_name, | |
643 | cur_cc_descr_attr->type); | |
644 | break; | |
55bb57e0 PP |
645 | } |
646 | } | |
647 | } | |
648 | ||
649 | /* Initialize plugin */ | |
650 | if (spec->init) { | |
a21d1cb8 PP |
651 | enum bt_self_plugin_status init_status; |
652 | ||
3fe0bf43 | 653 | BT_LOGD_STR("Calling user's plugin initialization function."); |
a21d1cb8 | 654 | init_status = spec->init((void *) plugin); |
3fe0bf43 | 655 | BT_LOGD("User function returned: %s", |
a21d1cb8 | 656 | bt_self_plugin_status_string(init_status)); |
3fe0bf43 | 657 | |
9724cce9 | 658 | if (init_status < 0) { |
3fe0bf43 | 659 | BT_LOGW_STR("User's plugin initialization function failed."); |
9724cce9 | 660 | status = BT_PLUGIN_STATUS_ERROR; |
55bb57e0 PP |
661 | goto end; |
662 | } | |
663 | } | |
664 | ||
c55a9f58 | 665 | spec->shared_lib_handle->init_called = BT_TRUE; |
55bb57e0 PP |
666 | |
667 | /* Add described component classes to plugin */ | |
668 | for (i = 0; i < comp_class_full_descriptors->len; i++) { | |
669 | struct comp_class_full_descriptor *cc_full_descr = | |
670 | &g_array_index(comp_class_full_descriptors, | |
671 | struct comp_class_full_descriptor, i); | |
0d72b8c3 PP |
672 | struct bt_component_class *comp_class = NULL; |
673 | struct bt_component_class_source *src_comp_class = NULL; | |
674 | struct bt_component_class_filter *flt_comp_class = NULL; | |
675 | struct bt_component_class_sink *sink_comp_class = NULL; | |
55bb57e0 | 676 | |
3fe0bf43 PP |
677 | BT_LOGD("Creating and setting properties of plugin's component class: " |
678 | "plugin-path=\"%s\", plugin-name=\"%s\", " | |
679 | "comp-class-name=\"%s\", comp-class-type=%s", | |
680 | spec->shared_lib_handle->path ? | |
681 | spec->shared_lib_handle->path->str : | |
682 | NULL, | |
683 | descriptor->name, | |
684 | cc_full_descr->descriptor->name, | |
685 | bt_component_class_type_string( | |
686 | cc_full_descr->descriptor->type)); | |
687 | ||
55bb57e0 PP |
688 | switch (cc_full_descr->descriptor->type) { |
689 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
0d72b8c3 | 690 | src_comp_class = bt_component_class_source_create( |
55bb57e0 | 691 | cc_full_descr->descriptor->name, |
d6e69534 | 692 | cc_full_descr->descriptor->methods.source.msg_iter_next); |
0d72b8c3 | 693 | comp_class = bt_component_class_source_as_component_class( |
d94d92ac | 694 | src_comp_class); |
55bb57e0 PP |
695 | break; |
696 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
0d72b8c3 | 697 | flt_comp_class = bt_component_class_filter_create( |
55bb57e0 | 698 | cc_full_descr->descriptor->name, |
d6e69534 | 699 | cc_full_descr->descriptor->methods.source.msg_iter_next); |
0d72b8c3 | 700 | comp_class = bt_component_class_filter_as_component_class( |
d94d92ac | 701 | flt_comp_class); |
55bb57e0 PP |
702 | break; |
703 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
0d72b8c3 | 704 | sink_comp_class = bt_component_class_sink_create( |
55bb57e0 PP |
705 | cc_full_descr->descriptor->name, |
706 | cc_full_descr->descriptor->methods.sink.consume); | |
0d72b8c3 | 707 | comp_class = bt_component_class_sink_as_component_class( |
d94d92ac | 708 | sink_comp_class); |
55bb57e0 PP |
709 | break; |
710 | default: | |
50ad9320 PP |
711 | /* |
712 | * WARN-level logging because this should not | |
713 | * happen with the appropriate ABI version. If | |
714 | * we're here, we know that for the reported | |
715 | * version of the ABI, this component class type | |
716 | * is unknown. | |
717 | */ | |
3fe0bf43 PP |
718 | BT_LOGW("Ignoring unknown component class type: " |
719 | "plugin-path=\"%s\", plugin-name=\"%s\", " | |
720 | "comp-class-name=\"%s\", comp-class-type=%d", | |
721 | spec->shared_lib_handle->path->str ? | |
722 | spec->shared_lib_handle->path->str : | |
723 | NULL, | |
724 | descriptor->name, | |
55bb57e0 | 725 | cc_full_descr->descriptor->name, |
3fe0bf43 | 726 | cc_full_descr->descriptor->type); |
55bb57e0 PP |
727 | continue; |
728 | } | |
729 | ||
730 | if (!comp_class) { | |
3fe0bf43 | 731 | BT_LOGE_STR("Cannot create component class."); |
55bb57e0 PP |
732 | status = BT_PLUGIN_STATUS_ERROR; |
733 | goto end; | |
734 | } | |
735 | ||
736 | if (cc_full_descr->description) { | |
0d72b8c3 | 737 | ret = bt_component_class_set_description( |
d94d92ac | 738 | comp_class, cc_full_descr->description); |
55bb57e0 | 739 | if (ret) { |
3fe0bf43 | 740 | BT_LOGE_STR("Cannot set component class's description."); |
55bb57e0 | 741 | status = BT_PLUGIN_STATUS_ERROR; |
65300d60 | 742 | BT_OBJECT_PUT_REF_AND_RESET(comp_class); |
55bb57e0 PP |
743 | goto end; |
744 | } | |
745 | } | |
746 | ||
279b3f15 | 747 | if (cc_full_descr->help) { |
0d72b8c3 | 748 | ret = bt_component_class_set_help(comp_class, |
279b3f15 PP |
749 | cc_full_descr->help); |
750 | if (ret) { | |
3fe0bf43 | 751 | BT_LOGE_STR("Cannot set component class's help string."); |
279b3f15 | 752 | status = BT_PLUGIN_STATUS_ERROR; |
65300d60 | 753 | BT_OBJECT_PUT_REF_AND_RESET(comp_class); |
279b3f15 PP |
754 | goto end; |
755 | } | |
756 | } | |
757 | ||
d94d92ac PP |
758 | switch (cc_full_descr->descriptor->type) { |
759 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
760 | if (cc_full_descr->methods.source.init) { | |
0d72b8c3 | 761 | ret = bt_component_class_source_set_init_method( |
d94d92ac PP |
762 | src_comp_class, |
763 | cc_full_descr->methods.source.init); | |
764 | if (ret) { | |
765 | BT_LOGE_STR("Cannot set source component class's initialization method."); | |
766 | status = BT_PLUGIN_STATUS_ERROR; | |
767 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
768 | goto end; | |
769 | } | |
55bb57e0 | 770 | } |
55bb57e0 | 771 | |
d94d92ac | 772 | if (cc_full_descr->methods.source.finalize) { |
0d72b8c3 | 773 | ret = bt_component_class_source_set_finalize_method( |
d94d92ac PP |
774 | src_comp_class, |
775 | cc_full_descr->methods.source.finalize); | |
776 | if (ret) { | |
777 | BT_LOGE_STR("Cannot set source component class's finalization method."); | |
778 | status = BT_PLUGIN_STATUS_ERROR; | |
779 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
780 | goto end; | |
781 | } | |
55bb57e0 | 782 | } |
55bb57e0 | 783 | |
d94d92ac | 784 | if (cc_full_descr->methods.source.query) { |
0d72b8c3 | 785 | ret = bt_component_class_source_set_query_method( |
d94d92ac PP |
786 | src_comp_class, |
787 | cc_full_descr->methods.source.query); | |
788 | if (ret) { | |
789 | BT_LOGE_STR("Cannot set source component class's query method."); | |
790 | status = BT_PLUGIN_STATUS_ERROR; | |
791 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
792 | goto end; | |
793 | } | |
8463eac2 | 794 | } |
8463eac2 | 795 | |
d94d92ac | 796 | if (cc_full_descr->methods.source.accept_output_port_connection) { |
0d72b8c3 | 797 | ret = bt_component_class_source_set_accept_output_port_connection_method( |
d94d92ac PP |
798 | src_comp_class, |
799 | cc_full_descr->methods.source.accept_output_port_connection); | |
800 | if (ret) { | |
801 | BT_LOGE_STR("Cannot set source component class's \"accept input output connection\" method."); | |
802 | status = BT_PLUGIN_STATUS_ERROR; | |
803 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
804 | goto end; | |
805 | } | |
72b913fb | 806 | } |
72b913fb | 807 | |
d94d92ac | 808 | if (cc_full_descr->methods.source.output_port_connected) { |
0d72b8c3 | 809 | ret = bt_component_class_source_set_output_port_connected_method( |
d94d92ac PP |
810 | src_comp_class, |
811 | cc_full_descr->methods.source.output_port_connected); | |
812 | if (ret) { | |
813 | BT_LOGE_STR("Cannot set source component class's \"output port connected\" method."); | |
814 | status = BT_PLUGIN_STATUS_ERROR; | |
815 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
816 | goto end; | |
817 | } | |
0d8b4d8e | 818 | } |
0d8b4d8e | 819 | |
d6e69534 PP |
820 | if (cc_full_descr->methods.source.msg_iter_init) { |
821 | ret = bt_component_class_source_set_message_iterator_init_method( | |
d94d92ac | 822 | src_comp_class, |
d6e69534 | 823 | cc_full_descr->methods.source.msg_iter_init); |
55bb57e0 | 824 | if (ret) { |
d6e69534 | 825 | BT_LOGE_STR("Cannot set source component class's message iterator initialization method."); |
55bb57e0 | 826 | status = BT_PLUGIN_STATUS_ERROR; |
d94d92ac | 827 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); |
55bb57e0 PP |
828 | goto end; |
829 | } | |
830 | } | |
831 | ||
d6e69534 PP |
832 | if (cc_full_descr->methods.source.msg_iter_finalize) { |
833 | ret = bt_component_class_source_set_message_iterator_finalize_method( | |
d94d92ac | 834 | src_comp_class, |
d6e69534 | 835 | cc_full_descr->methods.source.msg_iter_finalize); |
55bb57e0 | 836 | if (ret) { |
d6e69534 | 837 | BT_LOGE_STR("Cannot set source component class's message iterator finalization method."); |
55bb57e0 | 838 | status = BT_PLUGIN_STATUS_ERROR; |
d94d92ac | 839 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); |
55bb57e0 PP |
840 | goto end; |
841 | } | |
842 | } | |
d94d92ac | 843 | |
55bb57e0 PP |
844 | break; |
845 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
d94d92ac | 846 | if (cc_full_descr->methods.filter.init) { |
0d72b8c3 | 847 | ret = bt_component_class_filter_set_init_method( |
d94d92ac PP |
848 | flt_comp_class, |
849 | cc_full_descr->methods.filter.init); | |
850 | if (ret) { | |
851 | BT_LOGE_STR("Cannot set filter component class's initialization method."); | |
852 | status = BT_PLUGIN_STATUS_ERROR; | |
853 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
854 | goto end; | |
855 | } | |
856 | } | |
857 | ||
858 | if (cc_full_descr->methods.filter.finalize) { | |
0d72b8c3 | 859 | ret = bt_component_class_filter_set_finalize_method( |
d94d92ac PP |
860 | flt_comp_class, |
861 | cc_full_descr->methods.filter.finalize); | |
862 | if (ret) { | |
863 | BT_LOGE_STR("Cannot set filter component class's finalization method."); | |
864 | status = BT_PLUGIN_STATUS_ERROR; | |
865 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
866 | goto end; | |
867 | } | |
868 | } | |
869 | ||
870 | if (cc_full_descr->methods.filter.query) { | |
0d72b8c3 | 871 | ret = bt_component_class_filter_set_query_method( |
d94d92ac PP |
872 | flt_comp_class, |
873 | cc_full_descr->methods.filter.query); | |
874 | if (ret) { | |
875 | BT_LOGE_STR("Cannot set filter component class's query method."); | |
876 | status = BT_PLUGIN_STATUS_ERROR; | |
877 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
878 | goto end; | |
879 | } | |
880 | } | |
881 | ||
882 | if (cc_full_descr->methods.filter.accept_input_port_connection) { | |
0d72b8c3 | 883 | ret = bt_component_class_filter_set_accept_input_port_connection_method( |
d94d92ac PP |
884 | flt_comp_class, |
885 | cc_full_descr->methods.filter.accept_input_port_connection); | |
886 | if (ret) { | |
887 | BT_LOGE_STR("Cannot set filter component class's \"accept input port connection\" method."); | |
888 | status = BT_PLUGIN_STATUS_ERROR; | |
889 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
890 | goto end; | |
891 | } | |
892 | } | |
893 | ||
894 | if (cc_full_descr->methods.filter.accept_output_port_connection) { | |
0d72b8c3 | 895 | ret = bt_component_class_filter_set_accept_output_port_connection_method( |
d94d92ac PP |
896 | flt_comp_class, |
897 | cc_full_descr->methods.filter.accept_output_port_connection); | |
898 | if (ret) { | |
899 | BT_LOGE_STR("Cannot set filter component class's \"accept input output connection\" method."); | |
900 | status = BT_PLUGIN_STATUS_ERROR; | |
901 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
902 | goto end; | |
903 | } | |
904 | } | |
905 | ||
906 | if (cc_full_descr->methods.filter.input_port_connected) { | |
0d72b8c3 | 907 | ret = bt_component_class_filter_set_input_port_connected_method( |
d94d92ac PP |
908 | flt_comp_class, |
909 | cc_full_descr->methods.filter.input_port_connected); | |
910 | if (ret) { | |
911 | BT_LOGE_STR("Cannot set filter component class's \"input port connected\" method."); | |
912 | status = BT_PLUGIN_STATUS_ERROR; | |
913 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
914 | goto end; | |
915 | } | |
916 | } | |
917 | ||
918 | if (cc_full_descr->methods.filter.output_port_connected) { | |
0d72b8c3 | 919 | ret = bt_component_class_filter_set_output_port_connected_method( |
d94d92ac PP |
920 | flt_comp_class, |
921 | cc_full_descr->methods.filter.output_port_connected); | |
922 | if (ret) { | |
923 | BT_LOGE_STR("Cannot set filter component class's \"output port connected\" method."); | |
924 | status = BT_PLUGIN_STATUS_ERROR; | |
925 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
926 | goto end; | |
927 | } | |
928 | } | |
929 | ||
d6e69534 PP |
930 | if (cc_full_descr->methods.filter.msg_iter_init) { |
931 | ret = bt_component_class_filter_set_message_iterator_init_method( | |
d94d92ac | 932 | flt_comp_class, |
d6e69534 | 933 | cc_full_descr->methods.filter.msg_iter_init); |
55bb57e0 | 934 | if (ret) { |
d6e69534 | 935 | BT_LOGE_STR("Cannot set filter component class's message iterator initialization method."); |
55bb57e0 | 936 | status = BT_PLUGIN_STATUS_ERROR; |
d94d92ac | 937 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); |
55bb57e0 PP |
938 | goto end; |
939 | } | |
940 | } | |
941 | ||
d6e69534 PP |
942 | if (cc_full_descr->methods.filter.msg_iter_finalize) { |
943 | ret = bt_component_class_filter_set_message_iterator_finalize_method( | |
d94d92ac | 944 | flt_comp_class, |
d6e69534 | 945 | cc_full_descr->methods.filter.msg_iter_finalize); |
55bb57e0 | 946 | if (ret) { |
d6e69534 | 947 | BT_LOGE_STR("Cannot set filter component class's message iterator finalization method."); |
55bb57e0 | 948 | status = BT_PLUGIN_STATUS_ERROR; |
d94d92ac | 949 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); |
55bb57e0 PP |
950 | goto end; |
951 | } | |
952 | } | |
d94d92ac | 953 | |
55bb57e0 PP |
954 | break; |
955 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
d94d92ac | 956 | if (cc_full_descr->methods.sink.init) { |
0d72b8c3 | 957 | ret = bt_component_class_sink_set_init_method( |
d94d92ac PP |
958 | sink_comp_class, |
959 | cc_full_descr->methods.sink.init); | |
960 | if (ret) { | |
961 | BT_LOGE_STR("Cannot set sink component class's initialization method."); | |
962 | status = BT_PLUGIN_STATUS_ERROR; | |
963 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
964 | goto end; | |
965 | } | |
966 | } | |
967 | ||
968 | if (cc_full_descr->methods.sink.finalize) { | |
0d72b8c3 | 969 | ret = bt_component_class_sink_set_finalize_method( |
d94d92ac PP |
970 | sink_comp_class, |
971 | cc_full_descr->methods.sink.finalize); | |
972 | if (ret) { | |
973 | BT_LOGE_STR("Cannot set sink component class's finalization method."); | |
974 | status = BT_PLUGIN_STATUS_ERROR; | |
975 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
976 | goto end; | |
977 | } | |
978 | } | |
979 | ||
980 | if (cc_full_descr->methods.sink.query) { | |
0d72b8c3 | 981 | ret = bt_component_class_sink_set_query_method( |
d94d92ac PP |
982 | sink_comp_class, |
983 | cc_full_descr->methods.sink.query); | |
984 | if (ret) { | |
985 | BT_LOGE_STR("Cannot set sink component class's query method."); | |
986 | status = BT_PLUGIN_STATUS_ERROR; | |
987 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
988 | goto end; | |
989 | } | |
990 | } | |
991 | ||
992 | if (cc_full_descr->methods.sink.accept_input_port_connection) { | |
0d72b8c3 | 993 | ret = bt_component_class_sink_set_accept_input_port_connection_method( |
d94d92ac PP |
994 | sink_comp_class, |
995 | cc_full_descr->methods.sink.accept_input_port_connection); | |
996 | if (ret) { | |
997 | BT_LOGE_STR("Cannot set sink component class's \"accept input port connection\" method."); | |
998 | status = BT_PLUGIN_STATUS_ERROR; | |
999 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1000 | goto end; | |
1001 | } | |
1002 | } | |
1003 | ||
1004 | if (cc_full_descr->methods.sink.input_port_connected) { | |
0d72b8c3 | 1005 | ret = bt_component_class_sink_set_input_port_connected_method( |
d94d92ac PP |
1006 | sink_comp_class, |
1007 | cc_full_descr->methods.sink.input_port_connected); | |
1008 | if (ret) { | |
1009 | BT_LOGE_STR("Cannot set sink component class's \"input port connected\" method."); | |
1010 | status = BT_PLUGIN_STATUS_ERROR; | |
1011 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1012 | goto end; | |
1013 | } | |
1014 | } | |
1015 | ||
55bb57e0 PP |
1016 | break; |
1017 | default: | |
0fbb9a9f | 1018 | abort(); |
55bb57e0 PP |
1019 | } |
1020 | ||
1021 | /* | |
1022 | * Add component class to the plugin object. | |
1023 | * | |
1024 | * This will call back | |
1025 | * bt_plugin_so_on_add_component_class() so that we can | |
d94d92ac PP |
1026 | * add a mapping in the component class list when we |
1027 | * know the component class is successfully added. | |
55bb57e0 PP |
1028 | */ |
1029 | status = bt_plugin_add_component_class(plugin, | |
d94d92ac | 1030 | (void *) comp_class); |
65300d60 | 1031 | BT_OBJECT_PUT_REF_AND_RESET(comp_class); |
55bb57e0 | 1032 | if (status < 0) { |
3fe0bf43 | 1033 | BT_LOGE("Cannot add component class to plugin."); |
55bb57e0 PP |
1034 | goto end; |
1035 | } | |
1036 | } | |
1037 | ||
55bb57e0 PP |
1038 | end: |
1039 | g_array_free(comp_class_full_descriptors, TRUE); | |
1040 | return status; | |
1041 | } | |
1042 | ||
1043 | static | |
1044 | struct bt_plugin *bt_plugin_so_create_empty( | |
1045 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle) | |
1046 | { | |
1047 | struct bt_plugin *plugin; | |
1048 | struct bt_plugin_so_spec_data *spec; | |
1049 | ||
1050 | plugin = bt_plugin_create_empty(BT_PLUGIN_TYPE_SO); | |
1051 | if (!plugin) { | |
1052 | goto error; | |
1053 | } | |
1054 | ||
6fbd4105 | 1055 | plugin->destroy_spec_data = bt_plugin_so_destroy_spec_data; |
55bb57e0 PP |
1056 | plugin->spec_data = g_new0(struct bt_plugin_so_spec_data, 1); |
1057 | if (!plugin->spec_data) { | |
3fe0bf43 | 1058 | BT_LOGE_STR("Failed to allocate one SO plugin specific data structure."); |
55bb57e0 PP |
1059 | goto error; |
1060 | } | |
1061 | ||
1062 | spec = plugin->spec_data; | |
398454ed PP |
1063 | spec->shared_lib_handle = shared_lib_handle; |
1064 | bt_object_get_no_null_check(spec->shared_lib_handle); | |
55bb57e0 PP |
1065 | goto end; |
1066 | ||
1067 | error: | |
65300d60 | 1068 | BT_OBJECT_PUT_REF_AND_RESET(plugin); |
55bb57e0 PP |
1069 | |
1070 | end: | |
1071 | return plugin; | |
1072 | } | |
1073 | ||
52238017 MJ |
1074 | static |
1075 | size_t count_non_null_items_in_section(const void *begin, const void *end) | |
1076 | { | |
1077 | size_t count = 0; | |
1078 | const int * const *begin_int = (const int * const *) begin; | |
1079 | const int * const *end_int = (const int * const *) end; | |
1080 | const int * const *iter; | |
1081 | ||
1082 | for (iter = begin_int; iter != end_int; iter++) { | |
1083 | if (*iter) { | |
1084 | count++; | |
1085 | } | |
1086 | } | |
1087 | ||
1088 | return count; | |
1089 | } | |
1090 | ||
55bb57e0 | 1091 | static |
a8ff38ef | 1092 | struct bt_plugin_set *bt_plugin_so_create_all_from_sections( |
55bb57e0 PP |
1093 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle, |
1094 | struct __bt_plugin_descriptor const * const *descriptors_begin, | |
1095 | struct __bt_plugin_descriptor const * const *descriptors_end, | |
1096 | struct __bt_plugin_descriptor_attribute const * const *attrs_begin, | |
1097 | struct __bt_plugin_descriptor_attribute const * const *attrs_end, | |
1098 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_begin, | |
1099 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_end, | |
1100 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_begin, | |
1101 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_end) | |
1102 | { | |
1103 | size_t descriptor_count; | |
1104 | size_t attrs_count; | |
1105 | size_t cc_descriptors_count; | |
1106 | size_t cc_descr_attrs_count; | |
1107 | size_t i; | |
a8ff38ef | 1108 | struct bt_plugin_set *plugin_set = NULL; |
55bb57e0 | 1109 | |
52238017 MJ |
1110 | descriptor_count = count_non_null_items_in_section(descriptors_begin, descriptors_end); |
1111 | attrs_count = count_non_null_items_in_section(attrs_begin, attrs_end); | |
1112 | cc_descriptors_count = count_non_null_items_in_section(cc_descriptors_begin, cc_descriptors_end); | |
1113 | cc_descr_attrs_count = count_non_null_items_in_section(cc_descr_attrs_begin, cc_descr_attrs_end); | |
3fe0bf43 PP |
1114 | |
1115 | BT_LOGD("Creating all SO plugins from sections: " | |
1116 | "plugin-path=\"%s\", " | |
1117 | "descr-begin-addr=%p, descr-end-addr=%p, " | |
1118 | "attrs-begin-addr=%p, attrs-end-addr=%p, " | |
1119 | "cc-descr-begin-addr=%p, cc-descr-end-addr=%p, " | |
1120 | "cc-descr-attrs-begin-addr=%p, cc-descr-attrs-end-addr=%p, " | |
1121 | "descr-count=%zu, attrs-count=%zu, " | |
1122 | "cc-descr-count=%zu, cc-descr-attrs-count=%zu", | |
1123 | shared_lib_handle->path ? shared_lib_handle->path->str : NULL, | |
1124 | descriptors_begin, descriptors_end, | |
1125 | attrs_begin, attrs_end, | |
1126 | cc_descriptors_begin, cc_descriptors_end, | |
1127 | cc_descr_attrs_begin, cc_descr_attrs_end, | |
1128 | descriptor_count, attrs_count, | |
1129 | cc_descriptors_count, cc_descr_attrs_count); | |
a8ff38ef PP |
1130 | plugin_set = bt_plugin_set_create(); |
1131 | if (!plugin_set) { | |
3fe0bf43 | 1132 | BT_LOGE_STR("Cannot create empty plugin set."); |
55bb57e0 PP |
1133 | goto error; |
1134 | } | |
1135 | ||
52238017 | 1136 | for (i = 0; i < descriptors_end - descriptors_begin; i++) { |
55bb57e0 PP |
1137 | enum bt_plugin_status status; |
1138 | const struct __bt_plugin_descriptor *descriptor = | |
1139 | descriptors_begin[i]; | |
1140 | struct bt_plugin *plugin; | |
1141 | ||
52238017 MJ |
1142 | if (descriptor == NULL) { |
1143 | continue; | |
1144 | } | |
1145 | ||
3fe0bf43 PP |
1146 | BT_LOGD("Creating plugin object for plugin: " |
1147 | "name=\"%s\", abi-major=%d, abi-minor=%d", | |
1148 | descriptor->name, descriptor->major, descriptor->minor); | |
55bb57e0 PP |
1149 | |
1150 | if (descriptor->major > __BT_PLUGIN_VERSION_MAJOR) { | |
50ad9320 PP |
1151 | /* |
1152 | * DEBUG-level logging because we're only | |
1153 | * _trying_ to open this file as a compatible | |
1154 | * Babeltrace plugin: if it's not, it's not an | |
1155 | * error. And because this can be tried during | |
c8db3219 | 1156 | * bt_plugin_find_all_from_dir(), it's not |
50ad9320 PP |
1157 | * even a warning. |
1158 | */ | |
1159 | BT_LOGD("Unknown ABI major version: abi-major=%d", | |
55bb57e0 PP |
1160 | descriptor->major); |
1161 | goto error; | |
1162 | } | |
1163 | ||
1164 | plugin = bt_plugin_so_create_empty(shared_lib_handle); | |
1165 | if (!plugin) { | |
3fe0bf43 | 1166 | BT_LOGE_STR("Cannot create empty shared library handle."); |
55bb57e0 PP |
1167 | goto error; |
1168 | } | |
1169 | ||
1170 | if (shared_lib_handle && shared_lib_handle->path) { | |
1171 | bt_plugin_set_path(plugin, shared_lib_handle->path->str); | |
1172 | } | |
1173 | ||
1174 | status = bt_plugin_so_init(plugin, descriptor, attrs_begin, | |
1175 | attrs_end, cc_descriptors_begin, cc_descriptors_end, | |
1176 | cc_descr_attrs_begin, cc_descr_attrs_end); | |
1177 | if (status < 0) { | |
50ad9320 PP |
1178 | /* |
1179 | * DEBUG-level logging because we're only | |
1180 | * _trying_ to open this file as a compatible | |
1181 | * Babeltrace plugin: if it's not, it's not an | |
1182 | * error. And because this can be tried during | |
c8db3219 | 1183 | * bt_plugin_find_all_from_dir(), it's not |
50ad9320 PP |
1184 | * even a warning. |
1185 | */ | |
1186 | BT_LOGD_STR("Cannot initialize SO plugin object from sections."); | |
65300d60 | 1187 | BT_OBJECT_PUT_REF_AND_RESET(plugin); |
55bb57e0 PP |
1188 | goto error; |
1189 | } | |
1190 | ||
a8ff38ef PP |
1191 | /* Add to plugin set */ |
1192 | bt_plugin_set_add_plugin(plugin_set, plugin); | |
65300d60 | 1193 | bt_object_put_ref(plugin); |
55bb57e0 PP |
1194 | } |
1195 | ||
1196 | goto end; | |
1197 | ||
1198 | error: | |
65300d60 | 1199 | BT_OBJECT_PUT_REF_AND_RESET(plugin_set); |
55bb57e0 PP |
1200 | |
1201 | end: | |
a8ff38ef | 1202 | return plugin_set; |
55bb57e0 PP |
1203 | } |
1204 | ||
1205 | BT_HIDDEN | |
a8ff38ef | 1206 | struct bt_plugin_set *bt_plugin_so_create_all_from_static(void) |
55bb57e0 | 1207 | { |
a8ff38ef | 1208 | struct bt_plugin_set *plugin_set = NULL; |
55bb57e0 PP |
1209 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle = |
1210 | bt_plugin_so_shared_lib_handle_create(NULL); | |
1211 | ||
1212 | if (!shared_lib_handle) { | |
1213 | goto end; | |
1214 | } | |
1215 | ||
3fe0bf43 | 1216 | BT_LOGD_STR("Creating all SO plugins from built-in plugins."); |
a8ff38ef | 1217 | plugin_set = bt_plugin_so_create_all_from_sections(shared_lib_handle, |
52238017 MJ |
1218 | __bt_get_begin_section_plugin_descriptors(), |
1219 | __bt_get_end_section_plugin_descriptors(), | |
1220 | __bt_get_begin_section_plugin_descriptor_attributes(), | |
1221 | __bt_get_end_section_plugin_descriptor_attributes(), | |
1222 | __bt_get_begin_section_component_class_descriptors(), | |
1223 | __bt_get_end_section_component_class_descriptors(), | |
1224 | __bt_get_begin_section_component_class_descriptor_attributes(), | |
1225 | __bt_get_end_section_component_class_descriptor_attributes()); | |
55bb57e0 PP |
1226 | |
1227 | end: | |
65300d60 | 1228 | BT_OBJECT_PUT_REF_AND_RESET(shared_lib_handle); |
55bb57e0 | 1229 | |
a8ff38ef | 1230 | return plugin_set; |
55bb57e0 PP |
1231 | } |
1232 | ||
1233 | BT_HIDDEN | |
a8ff38ef | 1234 | struct bt_plugin_set *bt_plugin_so_create_all_from_file(const char *path) |
55bb57e0 PP |
1235 | { |
1236 | size_t path_len; | |
a8ff38ef | 1237 | struct bt_plugin_set *plugin_set = NULL; |
55bb57e0 PP |
1238 | struct __bt_plugin_descriptor const * const *descriptors_begin = NULL; |
1239 | struct __bt_plugin_descriptor const * const *descriptors_end = NULL; | |
1240 | struct __bt_plugin_descriptor_attribute const * const *attrs_begin = NULL; | |
1241 | struct __bt_plugin_descriptor_attribute const * const *attrs_end = NULL; | |
1242 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_begin = NULL; | |
1243 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_end = NULL; | |
1244 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_begin = NULL; | |
1245 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_end = NULL; | |
52238017 MJ |
1246 | struct __bt_plugin_descriptor const * const *(*get_begin_section_plugin_descriptors)(void); |
1247 | struct __bt_plugin_descriptor const * const *(*get_end_section_plugin_descriptors)(void); | |
1248 | struct __bt_plugin_descriptor_attribute const * const *(*get_begin_section_plugin_descriptor_attributes)(void); | |
1249 | struct __bt_plugin_descriptor_attribute const * const *(*get_end_section_plugin_descriptor_attributes)(void); | |
1250 | struct __bt_plugin_component_class_descriptor const * const *(*get_begin_section_component_class_descriptors)(void); | |
1251 | struct __bt_plugin_component_class_descriptor const * const *(*get_end_section_component_class_descriptors)(void); | |
1252 | struct __bt_plugin_component_class_descriptor_attribute const * const *(*get_begin_section_component_class_descriptor_attributes)(void); | |
1253 | struct __bt_plugin_component_class_descriptor_attribute const * const *(*get_end_section_component_class_descriptor_attributes)(void); | |
c55a9f58 | 1254 | bt_bool is_libtool_wrapper = BT_FALSE, is_shared_object = BT_FALSE; |
55bb57e0 PP |
1255 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle = NULL; |
1256 | ||
1257 | if (!path) { | |
3fe0bf43 | 1258 | BT_LOGW_STR("Invalid parameter: path is NULL."); |
55bb57e0 PP |
1259 | goto end; |
1260 | } | |
1261 | ||
3fe0bf43 | 1262 | BT_LOGD("Creating all SO plugins from file: path=\"%s\"", path); |
55bb57e0 PP |
1263 | path_len = strlen(path); |
1264 | if (path_len <= PLUGIN_SUFFIX_LEN) { | |
3fe0bf43 PP |
1265 | BT_LOGW("Invalid parameter: path length is too short: " |
1266 | "path-length=%zu", path_len); | |
55bb57e0 PP |
1267 | goto end; |
1268 | } | |
1269 | ||
1270 | path_len++; | |
1271 | /* | |
1272 | * Check if the file ends with a known plugin file type suffix (i.e. .so | |
1273 | * or .la on Linux). | |
1274 | */ | |
1275 | is_libtool_wrapper = !strncmp(LIBTOOL_PLUGIN_SUFFIX, | |
1276 | path + path_len - LIBTOOL_PLUGIN_SUFFIX_LEN, | |
1277 | LIBTOOL_PLUGIN_SUFFIX_LEN); | |
1278 | is_shared_object = !strncmp(NATIVE_PLUGIN_SUFFIX, | |
1279 | path + path_len - NATIVE_PLUGIN_SUFFIX_LEN, | |
1280 | NATIVE_PLUGIN_SUFFIX_LEN); | |
1281 | if (!is_shared_object && !is_libtool_wrapper) { | |
3fe0bf43 PP |
1282 | /* Name indicates this is not a plugin file; not an error */ |
1283 | BT_LOGV("File is not a SO plugin file: path=\"%s\"", path); | |
55bb57e0 PP |
1284 | goto end; |
1285 | } | |
1286 | ||
1287 | shared_lib_handle = bt_plugin_so_shared_lib_handle_create(path); | |
1288 | if (!shared_lib_handle) { | |
50ad9320 | 1289 | BT_LOGD_STR("Cannot create shared library handle."); |
55bb57e0 PP |
1290 | goto end; |
1291 | } | |
1292 | ||
52238017 MJ |
1293 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_plugin_descriptors", |
1294 | (gpointer *) &get_begin_section_plugin_descriptors)) { | |
1295 | descriptors_begin = get_begin_section_plugin_descriptors(); | |
1296 | } else { | |
3fe0bf43 PP |
1297 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1298 | "symbol=\"%s\"", path, | |
52238017 | 1299 | "__bt_get_begin_section_plugin_descriptors"); |
55bb57e0 PP |
1300 | goto end; |
1301 | } | |
1302 | ||
52238017 MJ |
1303 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_plugin_descriptors", |
1304 | (gpointer *) &get_end_section_plugin_descriptors)) { | |
1305 | descriptors_end = get_end_section_plugin_descriptors(); | |
1306 | } else { | |
3fe0bf43 PP |
1307 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1308 | "symbol=\"%s\"", path, | |
52238017 | 1309 | "__bt_get_end_section_plugin_descriptors"); |
55bb57e0 PP |
1310 | goto end; |
1311 | } | |
1312 | ||
52238017 MJ |
1313 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_plugin_descriptor_attributes", |
1314 | (gpointer *) &get_begin_section_plugin_descriptor_attributes)) { | |
1315 | attrs_begin = get_begin_section_plugin_descriptor_attributes(); | |
1316 | } else { | |
3fe0bf43 PP |
1317 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1318 | "symbol=\"%s\"", path, | |
52238017 | 1319 | "__bt_get_begin_section_plugin_descriptor_attributes"); |
55bb57e0 PP |
1320 | } |
1321 | ||
52238017 MJ |
1322 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_plugin_descriptor_attributes", |
1323 | (gpointer *) &get_end_section_plugin_descriptor_attributes)) { | |
1324 | attrs_end = get_end_section_plugin_descriptor_attributes(); | |
1325 | } else { | |
3fe0bf43 PP |
1326 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1327 | "symbol=\"%s\"", path, | |
52238017 | 1328 | "__bt_get_end_section_plugin_descriptor_attributes"); |
55bb57e0 PP |
1329 | } |
1330 | ||
1331 | if ((!!attrs_begin - !!attrs_end) != 0) { | |
3fe0bf43 PP |
1332 | BT_LOGD("Found section start or end symbol, but not both: " |
1333 | "path=\"%s\", symbol-start=\"%s\", " | |
1334 | "symbol-end=\"%s\", symbol-start-addr=%p, " | |
1335 | "symbol-end-addr=%p", | |
52238017 MJ |
1336 | path, "__bt_get_begin_section_plugin_descriptor_attributes", |
1337 | "__bt_get_end_section_plugin_descriptor_attributes", | |
3fe0bf43 | 1338 | attrs_begin, attrs_end); |
55bb57e0 PP |
1339 | goto end; |
1340 | } | |
1341 | ||
52238017 MJ |
1342 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_component_class_descriptors", |
1343 | (gpointer *) &get_begin_section_component_class_descriptors)) { | |
1344 | cc_descriptors_begin = get_begin_section_component_class_descriptors(); | |
1345 | } else { | |
3fe0bf43 PP |
1346 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1347 | "symbol=\"%s\"", path, | |
52238017 | 1348 | "__bt_get_begin_section_component_class_descriptors"); |
55bb57e0 PP |
1349 | } |
1350 | ||
52238017 MJ |
1351 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_component_class_descriptors", |
1352 | (gpointer *) &get_end_section_component_class_descriptors)) { | |
1353 | cc_descriptors_end = get_end_section_component_class_descriptors(); | |
1354 | } else { | |
3fe0bf43 PP |
1355 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1356 | "symbol=\"%s\"", path, | |
52238017 | 1357 | "__bt_get_end_section_component_class_descriptors"); |
55bb57e0 PP |
1358 | } |
1359 | ||
1360 | if ((!!cc_descriptors_begin - !!cc_descriptors_end) != 0) { | |
3fe0bf43 PP |
1361 | BT_LOGD("Found section start or end symbol, but not both: " |
1362 | "path=\"%s\", symbol-start=\"%s\", " | |
1363 | "symbol-end=\"%s\", symbol-start-addr=%p, " | |
1364 | "symbol-end-addr=%p", | |
52238017 MJ |
1365 | path, "__bt_get_begin_section_component_class_descriptors", |
1366 | "__bt_get_end_section_component_class_descriptors", | |
3fe0bf43 | 1367 | cc_descriptors_begin, cc_descriptors_end); |
55bb57e0 PP |
1368 | goto end; |
1369 | } | |
1370 | ||
52238017 MJ |
1371 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_component_class_descriptor_attributes", |
1372 | (gpointer *) &get_begin_section_component_class_descriptor_attributes)) { | |
1373 | cc_descr_attrs_begin = get_begin_section_component_class_descriptor_attributes(); | |
1374 | } else { | |
3fe0bf43 PP |
1375 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1376 | "symbol=\"%s\"", path, | |
52238017 | 1377 | "__bt_get_begin_section_component_class_descriptor_attributes"); |
55bb57e0 PP |
1378 | } |
1379 | ||
52238017 MJ |
1380 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_component_class_descriptor_attributes", |
1381 | (gpointer *) &get_end_section_component_class_descriptor_attributes)) { | |
1382 | cc_descr_attrs_end = get_end_section_component_class_descriptor_attributes(); | |
1383 | } else { | |
3fe0bf43 PP |
1384 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1385 | "symbol=\"%s\"", path, | |
52238017 | 1386 | "__bt_get_end_section_component_class_descriptor_attributes"); |
55bb57e0 PP |
1387 | } |
1388 | ||
1389 | if ((!!cc_descr_attrs_begin - !!cc_descr_attrs_end) != 0) { | |
3fe0bf43 PP |
1390 | BT_LOGD("Found section start or end symbol, but not both: " |
1391 | "path=\"%s\", symbol-start=\"%s\", " | |
1392 | "symbol-end=\"%s\", symbol-start-addr=%p, " | |
1393 | "symbol-end-addr=%p", | |
52238017 MJ |
1394 | path, "__bt_get_begin_section_component_class_descriptor_attributes", |
1395 | "__bt_get_end_section_component_class_descriptor_attributes", | |
3fe0bf43 | 1396 | cc_descr_attrs_begin, cc_descr_attrs_end); |
55bb57e0 PP |
1397 | goto end; |
1398 | } | |
1399 | ||
1400 | /* Initialize plugin */ | |
3fe0bf43 | 1401 | BT_LOGD_STR("Initializing plugin object."); |
a8ff38ef | 1402 | plugin_set = bt_plugin_so_create_all_from_sections(shared_lib_handle, |
55bb57e0 PP |
1403 | descriptors_begin, descriptors_end, attrs_begin, attrs_end, |
1404 | cc_descriptors_begin, cc_descriptors_end, | |
1405 | cc_descr_attrs_begin, cc_descr_attrs_end); | |
1406 | ||
1407 | end: | |
65300d60 | 1408 | BT_OBJECT_PUT_REF_AND_RESET(shared_lib_handle); |
a8ff38ef | 1409 | return plugin_set; |
55bb57e0 PP |
1410 | } |
1411 | ||
1412 | static | |
1413 | void plugin_comp_class_destroy_listener(struct bt_component_class *comp_class, | |
1414 | void *data) | |
1415 | { | |
bfa9a4be | 1416 | bt_list_del(&comp_class->node); |
65300d60 | 1417 | BT_OBJECT_PUT_REF_AND_RESET(comp_class->so_handle); |
bfa9a4be | 1418 | BT_LOGV("Component class destroyed: removed entry from list: " |
3fe0bf43 | 1419 | "comp-cls-addr=%p", comp_class); |
55bb57e0 PP |
1420 | } |
1421 | ||
1422 | BT_HIDDEN | |
3230ee6b | 1423 | void bt_plugin_so_on_add_component_class(struct bt_plugin *plugin, |
55bb57e0 PP |
1424 | struct bt_component_class *comp_class) |
1425 | { | |
55bb57e0 PP |
1426 | struct bt_plugin_so_spec_data *spec = plugin->spec_data; |
1427 | ||
f6ccaed9 PP |
1428 | BT_ASSERT(plugin->spec_data); |
1429 | BT_ASSERT(plugin->type == BT_PLUGIN_TYPE_SO); | |
55bb57e0 | 1430 | |
bfa9a4be | 1431 | bt_list_add(&comp_class->node, &component_class_list); |
398454ed PP |
1432 | comp_class->so_handle = spec->shared_lib_handle; |
1433 | bt_object_get_no_null_check(comp_class->so_handle); | |
55bb57e0 PP |
1434 | |
1435 | /* Add our custom destroy listener */ | |
3230ee6b | 1436 | bt_component_class_add_destroy_listener(comp_class, |
55bb57e0 | 1437 | plugin_comp_class_destroy_listener, NULL); |
55bb57e0 | 1438 | } |