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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 | ||
105 | static | |
106 | void bt_plugin_so_shared_lib_handle_destroy(struct bt_object *obj) | |
107 | { | |
108 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle; | |
109 | ||
f6ccaed9 | 110 | BT_ASSERT(obj); |
55bb57e0 PP |
111 | shared_lib_handle = container_of(obj, |
112 | struct bt_plugin_so_shared_lib_handle, base); | |
3fe0bf43 PP |
113 | const char *path = shared_lib_handle->path ? |
114 | shared_lib_handle->path->str : NULL; | |
115 | ||
116 | BT_LOGD("Destroying shared library handle: addr=%p, path=\"%s\"", | |
117 | shared_lib_handle, path); | |
55bb57e0 PP |
118 | |
119 | if (shared_lib_handle->init_called && shared_lib_handle->exit) { | |
3fe0bf43 | 120 | enum bt_plugin_status status; |
55bb57e0 | 121 | |
3fe0bf43 PP |
122 | BT_LOGD_STR("Calling user's plugin exit function."); |
123 | status = shared_lib_handle->exit(); | |
124 | BT_LOGD("User function returned: %s", | |
125 | bt_plugin_status_string(status)); | |
55bb57e0 | 126 | |
3fe0bf43 PP |
127 | if (status < 0) { |
128 | BT_LOGW("User's plugin exit function failed: " | |
129 | "path=\"%s\"", path); | |
55bb57e0 PP |
130 | } |
131 | } | |
132 | ||
133 | if (shared_lib_handle->module) { | |
f1447220 PP |
134 | #ifndef NDEBUG |
135 | /* | |
136 | * Valgrind shows incomplete stack traces when | |
137 | * dynamically loaded libraries are closed before it | |
138 | * finishes. Use the BABELTRACE_NO_DLCLOSE in a debug | |
139 | * build to avoid this. | |
140 | */ | |
141 | const char *var = getenv("BABELTRACE_NO_DLCLOSE"); | |
142 | ||
143 | if (!var || strcmp(var, "1") != 0) { | |
144 | #endif | |
3fe0bf43 PP |
145 | BT_LOGD("Closing GModule: path=\"%s\"", path); |
146 | ||
f1447220 | 147 | if (!g_module_close(shared_lib_handle->module)) { |
3fe0bf43 PP |
148 | BT_LOGE("Cannot close GModule: %s: path=\"%s\"", |
149 | g_module_error(), path); | |
f1447220 | 150 | } |
db5504f9 PP |
151 | |
152 | shared_lib_handle->module = NULL; | |
f1447220 | 153 | #ifndef NDEBUG |
3fe0bf43 PP |
154 | } else { |
155 | BT_LOGD("Not closing GModule because `BABELTRACE_NO_DLCLOSE=1`: " | |
156 | "path=\"%s\"", path); | |
55bb57e0 | 157 | } |
f1447220 | 158 | #endif |
55bb57e0 PP |
159 | } |
160 | ||
161 | if (shared_lib_handle->path) { | |
162 | g_string_free(shared_lib_handle->path, TRUE); | |
db5504f9 | 163 | shared_lib_handle->path = NULL; |
55bb57e0 PP |
164 | } |
165 | ||
166 | g_free(shared_lib_handle); | |
167 | } | |
168 | ||
169 | static | |
170 | struct bt_plugin_so_shared_lib_handle *bt_plugin_so_shared_lib_handle_create( | |
171 | const char *path) | |
172 | { | |
173 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle = NULL; | |
174 | ||
3fe0bf43 | 175 | BT_LOGD("Creating shared library handle: path=\"%s\"", path); |
55bb57e0 PP |
176 | shared_lib_handle = g_new0(struct bt_plugin_so_shared_lib_handle, 1); |
177 | if (!shared_lib_handle) { | |
3fe0bf43 | 178 | BT_LOGE_STR("Failed to allocate one shared library handle."); |
55bb57e0 PP |
179 | goto error; |
180 | } | |
181 | ||
3fea54f6 PP |
182 | bt_object_init_shared(&shared_lib_handle->base, |
183 | bt_plugin_so_shared_lib_handle_destroy); | |
55bb57e0 PP |
184 | |
185 | if (!path) { | |
186 | goto end; | |
187 | } | |
188 | ||
189 | shared_lib_handle->path = g_string_new(path); | |
190 | if (!shared_lib_handle->path) { | |
3fe0bf43 | 191 | BT_LOGE_STR("Failed to allocate a GString."); |
55bb57e0 PP |
192 | goto error; |
193 | } | |
194 | ||
424b8c43 | 195 | shared_lib_handle->module = g_module_open(path, G_MODULE_BIND_LOCAL); |
55bb57e0 | 196 | if (!shared_lib_handle->module) { |
50ad9320 PP |
197 | /* |
198 | * DEBUG-level logging because we're only _trying_ to | |
199 | * open this file as a Babeltrace plugin: if it's not, | |
200 | * it's not an error. And because this can be tried | |
c8db3219 | 201 | * during bt_plugin_find_all_from_dir(), it's not even |
50ad9320 PP |
202 | * a warning. |
203 | */ | |
204 | BT_LOGD("Cannot open GModule: %s: path=\"%s\"", | |
3fe0bf43 | 205 | g_module_error(), path); |
55bb57e0 PP |
206 | goto error; |
207 | } | |
208 | ||
209 | goto end; | |
210 | ||
211 | error: | |
65300d60 | 212 | BT_OBJECT_PUT_REF_AND_RESET(shared_lib_handle); |
55bb57e0 PP |
213 | |
214 | end: | |
3fe0bf43 PP |
215 | if (shared_lib_handle) { |
216 | BT_LOGD("Created shared library handle: path=\"%s\", addr=%p", | |
217 | path, shared_lib_handle); | |
218 | } | |
219 | ||
55bb57e0 PP |
220 | return shared_lib_handle; |
221 | } | |
222 | ||
6fbd4105 | 223 | static |
55bb57e0 PP |
224 | void bt_plugin_so_destroy_spec_data(struct bt_plugin *plugin) |
225 | { | |
226 | struct bt_plugin_so_spec_data *spec = plugin->spec_data; | |
227 | ||
228 | if (!plugin->spec_data) { | |
229 | return; | |
230 | } | |
231 | ||
f6ccaed9 PP |
232 | BT_ASSERT(plugin->type == BT_PLUGIN_TYPE_SO); |
233 | BT_ASSERT(spec); | |
65300d60 | 234 | BT_OBJECT_PUT_REF_AND_RESET(spec->shared_lib_handle); |
55bb57e0 PP |
235 | g_free(plugin->spec_data); |
236 | plugin->spec_data = NULL; | |
237 | } | |
238 | ||
239 | /* | |
240 | * This function does the following: | |
241 | * | |
242 | * 1. Iterate on the plugin descriptor attributes section and set the | |
243 | * plugin's attributes depending on the attribute types. This | |
244 | * includes the name of the plugin, its description, and its | |
245 | * initialization function, for example. | |
246 | * | |
247 | * 2. Iterate on the component class descriptors section and create one | |
248 | * "full descriptor" (temporary structure) for each one that is found | |
249 | * and attached to our plugin descriptor. | |
250 | * | |
251 | * 3. Iterate on the component class descriptor attributes section and | |
252 | * set the corresponding full descriptor's attributes depending on | |
253 | * the attribute types. This includes the description of the | |
254 | * component class, as well as its initialization and destroy | |
255 | * methods. | |
256 | * | |
257 | * 4. Call the user's plugin initialization function, if any is | |
258 | * defined. | |
259 | * | |
260 | * 5. For each full component class descriptor, create a component class | |
261 | * object, set its optional attributes, and add it to the plugin | |
262 | * object. | |
263 | * | |
264 | * 6. Freeze the plugin object. | |
265 | */ | |
266 | static | |
267 | enum bt_plugin_status bt_plugin_so_init( | |
268 | struct bt_plugin *plugin, | |
269 | const struct __bt_plugin_descriptor *descriptor, | |
270 | struct __bt_plugin_descriptor_attribute const * const *attrs_begin, | |
271 | struct __bt_plugin_descriptor_attribute const * const *attrs_end, | |
272 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_begin, | |
273 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_end, | |
274 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_begin, | |
275 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_end) | |
276 | { | |
277 | /* | |
278 | * This structure's members point to the plugin's memory | |
279 | * (do NOT free). | |
280 | */ | |
281 | struct comp_class_full_descriptor { | |
282 | const struct __bt_plugin_component_class_descriptor *descriptor; | |
283 | const char *description; | |
279b3f15 | 284 | const char *help; |
d94d92ac PP |
285 | |
286 | union { | |
287 | struct { | |
0d72b8c3 PP |
288 | bt_component_class_source_init_method init; |
289 | bt_component_class_source_finalize_method finalize; | |
290 | bt_component_class_source_query_method query; | |
291 | bt_component_class_source_accept_output_port_connection_method accept_output_port_connection; | |
292 | bt_component_class_source_output_port_connected_method output_port_connected; | |
293 | bt_component_class_source_output_port_disconnected_method output_port_disconnected; | |
d6e69534 PP |
294 | bt_component_class_source_message_iterator_init_method msg_iter_init; |
295 | bt_component_class_source_message_iterator_finalize_method msg_iter_finalize; | |
d94d92ac PP |
296 | } source; |
297 | ||
298 | struct { | |
0d72b8c3 PP |
299 | bt_component_class_filter_init_method init; |
300 | bt_component_class_filter_finalize_method finalize; | |
301 | bt_component_class_filter_query_method query; | |
302 | bt_component_class_filter_accept_input_port_connection_method accept_input_port_connection; | |
303 | bt_component_class_filter_accept_output_port_connection_method accept_output_port_connection; | |
304 | bt_component_class_filter_input_port_connected_method input_port_connected; | |
305 | bt_component_class_filter_output_port_connected_method output_port_connected; | |
306 | bt_component_class_filter_input_port_disconnected_method input_port_disconnected; | |
307 | bt_component_class_filter_output_port_disconnected_method output_port_disconnected; | |
d6e69534 PP |
308 | bt_component_class_filter_message_iterator_init_method msg_iter_init; |
309 | bt_component_class_filter_message_iterator_finalize_method msg_iter_finalize; | |
d94d92ac PP |
310 | } filter; |
311 | ||
312 | struct { | |
0d72b8c3 PP |
313 | bt_component_class_sink_init_method init; |
314 | bt_component_class_sink_finalize_method finalize; | |
315 | bt_component_class_sink_query_method query; | |
316 | bt_component_class_sink_accept_input_port_connection_method accept_input_port_connection; | |
317 | bt_component_class_sink_input_port_connected_method input_port_connected; | |
318 | bt_component_class_sink_input_port_disconnected_method input_port_disconnected; | |
d94d92ac PP |
319 | } sink; |
320 | } methods; | |
55bb57e0 PP |
321 | }; |
322 | ||
323 | enum bt_plugin_status status = BT_PLUGIN_STATUS_OK; | |
324 | struct __bt_plugin_descriptor_attribute const * const *cur_attr_ptr; | |
325 | struct __bt_plugin_component_class_descriptor const * const *cur_cc_descr_ptr; | |
326 | struct __bt_plugin_component_class_descriptor_attribute const * const *cur_cc_descr_attr_ptr; | |
327 | struct bt_plugin_so_spec_data *spec = plugin->spec_data; | |
328 | GArray *comp_class_full_descriptors; | |
329 | size_t i; | |
330 | int ret; | |
331 | ||
3fe0bf43 PP |
332 | BT_LOGD("Initializing plugin object from descriptors found in sections: " |
333 | "plugin-addr=%p, plugin-path=\"%s\", " | |
334 | "attrs-begin-addr=%p, attrs-end-addr=%p, " | |
335 | "cc-descr-begin-addr=%p, cc-descr-end-addr=%p, " | |
336 | "cc-descr-attrs-begin-addr=%p, cc-descr-attrs-end-addr=%p", | |
337 | plugin, | |
338 | spec->shared_lib_handle->path ? | |
339 | spec->shared_lib_handle->path->str : NULL, | |
340 | attrs_begin, attrs_end, | |
341 | cc_descriptors_begin, cc_descriptors_end, | |
342 | cc_descr_attrs_begin, cc_descr_attrs_end); | |
55bb57e0 PP |
343 | comp_class_full_descriptors = g_array_new(FALSE, TRUE, |
344 | sizeof(struct comp_class_full_descriptor)); | |
345 | if (!comp_class_full_descriptors) { | |
3fe0bf43 | 346 | BT_LOGE_STR("Failed to allocate a GArray."); |
55bb57e0 PP |
347 | status = BT_PLUGIN_STATUS_ERROR; |
348 | goto end; | |
349 | } | |
350 | ||
351 | /* Set mandatory attributes */ | |
352 | spec->descriptor = descriptor; | |
353 | bt_plugin_set_name(plugin, descriptor->name); | |
354 | ||
355 | /* | |
356 | * Find and set optional attributes attached to this plugin | |
357 | * descriptor. | |
358 | */ | |
359 | for (cur_attr_ptr = attrs_begin; cur_attr_ptr != attrs_end; cur_attr_ptr++) { | |
360 | const struct __bt_plugin_descriptor_attribute *cur_attr = | |
361 | *cur_attr_ptr; | |
362 | ||
52238017 MJ |
363 | if (cur_attr == NULL) { |
364 | continue; | |
365 | } | |
366 | ||
55bb57e0 PP |
367 | if (cur_attr->plugin_descriptor != descriptor) { |
368 | continue; | |
369 | } | |
370 | ||
371 | switch (cur_attr->type) { | |
372 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_INIT: | |
373 | spec->init = cur_attr->value.init; | |
374 | break; | |
375 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_EXIT: | |
376 | spec->shared_lib_handle->exit = cur_attr->value.exit; | |
377 | break; | |
378 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_AUTHOR: | |
379 | bt_plugin_set_author(plugin, cur_attr->value.author); | |
380 | break; | |
381 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_LICENSE: | |
382 | bt_plugin_set_license(plugin, cur_attr->value.license); | |
383 | break; | |
384 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_DESCRIPTION: | |
385 | bt_plugin_set_description(plugin, cur_attr->value.description); | |
386 | break; | |
387 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_VERSION: | |
388 | bt_plugin_set_version(plugin, | |
389 | (unsigned int) cur_attr->value.version.major, | |
390 | (unsigned int) cur_attr->value.version.minor, | |
391 | (unsigned int) cur_attr->value.version.patch, | |
392 | cur_attr->value.version.extra); | |
393 | break; | |
394 | default: | |
50ad9320 PP |
395 | /* |
396 | * WARN-level logging because this should not | |
397 | * happen with the appropriate ABI version. If | |
398 | * we're here, we know that for the reported | |
399 | * version of the ABI, this attribute is | |
400 | * unknown. | |
401 | */ | |
3fe0bf43 PP |
402 | BT_LOGW("Ignoring unknown plugin descriptor attribute: " |
403 | "plugin-path=\"%s\", plugin-name=\"%s\", " | |
404 | "attr-type-name=\"%s\", attr-type-id=%d", | |
405 | spec->shared_lib_handle->path ? | |
406 | spec->shared_lib_handle->path->str : | |
407 | NULL, | |
408 | descriptor->name, cur_attr->type_name, | |
409 | cur_attr->type); | |
55bb57e0 PP |
410 | break; |
411 | } | |
412 | } | |
413 | ||
414 | /* | |
415 | * Find component class descriptors attached to this plugin | |
416 | * descriptor and initialize corresponding full component class | |
417 | * descriptors in the array. | |
418 | */ | |
419 | for (cur_cc_descr_ptr = cc_descriptors_begin; cur_cc_descr_ptr != cc_descriptors_end; cur_cc_descr_ptr++) { | |
420 | const struct __bt_plugin_component_class_descriptor *cur_cc_descr = | |
421 | *cur_cc_descr_ptr; | |
422 | struct comp_class_full_descriptor full_descriptor = {0}; | |
423 | ||
52238017 MJ |
424 | if (cur_cc_descr == NULL) { |
425 | continue; | |
426 | } | |
427 | ||
55bb57e0 PP |
428 | if (cur_cc_descr->plugin_descriptor != descriptor) { |
429 | continue; | |
430 | } | |
431 | ||
432 | full_descriptor.descriptor = cur_cc_descr; | |
433 | g_array_append_val(comp_class_full_descriptors, | |
434 | full_descriptor); | |
435 | } | |
436 | ||
437 | /* | |
438 | * Find component class descriptor attributes attached to this | |
439 | * plugin descriptor and update corresponding full component | |
440 | * class descriptors in the array. | |
441 | */ | |
442 | for (cur_cc_descr_attr_ptr = cc_descr_attrs_begin; cur_cc_descr_attr_ptr != cc_descr_attrs_end; cur_cc_descr_attr_ptr++) { | |
443 | const struct __bt_plugin_component_class_descriptor_attribute *cur_cc_descr_attr = | |
444 | *cur_cc_descr_attr_ptr; | |
d94d92ac | 445 | enum bt_component_class_type cc_type; |
55bb57e0 | 446 | |
52238017 MJ |
447 | if (cur_cc_descr_attr == NULL) { |
448 | continue; | |
449 | } | |
450 | ||
55bb57e0 PP |
451 | if (cur_cc_descr_attr->comp_class_descriptor->plugin_descriptor != |
452 | descriptor) { | |
453 | continue; | |
454 | } | |
455 | ||
d94d92ac PP |
456 | cc_type = cur_cc_descr_attr->comp_class_descriptor->type; |
457 | ||
55bb57e0 PP |
458 | /* Find the corresponding component class descriptor entry */ |
459 | for (i = 0; i < comp_class_full_descriptors->len; i++) { | |
460 | struct comp_class_full_descriptor *cc_full_descr = | |
461 | &g_array_index(comp_class_full_descriptors, | |
462 | struct comp_class_full_descriptor, i); | |
463 | ||
d94d92ac | 464 | if (cur_cc_descr_attr->comp_class_descriptor != |
55bb57e0 | 465 | cc_full_descr->descriptor) { |
d94d92ac PP |
466 | continue; |
467 | } | |
468 | ||
469 | switch (cur_cc_descr_attr->type) { | |
470 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_DESCRIPTION: | |
471 | cc_full_descr->description = | |
472 | cur_cc_descr_attr->value.description; | |
473 | break; | |
474 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_HELP: | |
475 | cc_full_descr->help = | |
476 | cur_cc_descr_attr->value.help; | |
477 | break; | |
478 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_INIT_METHOD: | |
479 | switch (cc_type) { | |
480 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
481 | cc_full_descr->methods.source.init = | |
482 | cur_cc_descr_attr->value.source_init_method; | |
55bb57e0 | 483 | break; |
d94d92ac PP |
484 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
485 | cc_full_descr->methods.filter.init = | |
486 | cur_cc_descr_attr->value.filter_init_method; | |
279b3f15 | 487 | break; |
d94d92ac PP |
488 | case BT_COMPONENT_CLASS_TYPE_SINK: |
489 | cc_full_descr->methods.sink.init = | |
490 | cur_cc_descr_attr->value.sink_init_method; | |
55bb57e0 | 491 | break; |
d94d92ac PP |
492 | default: |
493 | abort(); | |
494 | } | |
495 | break; | |
496 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_FINALIZE_METHOD: | |
497 | switch (cc_type) { | |
498 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
499 | cc_full_descr->methods.source.finalize = | |
500 | cur_cc_descr_attr->value.source_finalize_method; | |
55bb57e0 | 501 | break; |
d94d92ac PP |
502 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
503 | cc_full_descr->methods.filter.finalize = | |
504 | cur_cc_descr_attr->value.filter_finalize_method; | |
8463eac2 | 505 | break; |
d94d92ac PP |
506 | case BT_COMPONENT_CLASS_TYPE_SINK: |
507 | cc_full_descr->methods.sink.finalize = | |
508 | cur_cc_descr_attr->value.sink_finalize_method; | |
72b913fb | 509 | break; |
d94d92ac PP |
510 | default: |
511 | abort(); | |
512 | } | |
513 | break; | |
514 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_QUERY_METHOD: | |
515 | switch (cc_type) { | |
516 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
517 | cc_full_descr->methods.source.query = | |
518 | cur_cc_descr_attr->value.source_query_method; | |
0d8b4d8e | 519 | break; |
d94d92ac PP |
520 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
521 | cc_full_descr->methods.filter.query = | |
522 | cur_cc_descr_attr->value.filter_query_method; | |
55bb57e0 | 523 | break; |
d94d92ac PP |
524 | case BT_COMPONENT_CLASS_TYPE_SINK: |
525 | cc_full_descr->methods.sink.query = | |
526 | cur_cc_descr_attr->value.sink_query_method; | |
55bb57e0 | 527 | break; |
d94d92ac PP |
528 | default: |
529 | abort(); | |
530 | } | |
531 | break; | |
532 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_ACCEPT_INPUT_PORT_CONNECTION_METHOD: | |
533 | switch (cc_type) { | |
534 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
535 | cc_full_descr->methods.filter.accept_input_port_connection = | |
536 | cur_cc_descr_attr->value.filter_accept_input_port_connection_method; | |
537 | break; | |
538 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
539 | cc_full_descr->methods.sink.accept_input_port_connection = | |
540 | cur_cc_descr_attr->value.sink_accept_input_port_connection_method; | |
541 | break; | |
542 | default: | |
543 | abort(); | |
544 | } | |
545 | break; | |
546 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_ACCEPT_OUTPUT_PORT_CONNECTION_METHOD: | |
547 | switch (cc_type) { | |
548 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
549 | cc_full_descr->methods.source.accept_output_port_connection = | |
550 | cur_cc_descr_attr->value.source_accept_output_port_connection_method; | |
551 | break; | |
552 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
553 | cc_full_descr->methods.filter.accept_output_port_connection = | |
554 | cur_cc_descr_attr->value.filter_accept_output_port_connection_method; | |
555 | break; | |
556 | default: | |
557 | abort(); | |
558 | } | |
559 | break; | |
560 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_INPUT_PORT_CONNECTED_METHOD: | |
561 | switch (cc_type) { | |
562 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
563 | cc_full_descr->methods.filter.input_port_connected = | |
564 | cur_cc_descr_attr->value.filter_input_port_connected_method; | |
565 | break; | |
566 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
567 | cc_full_descr->methods.sink.input_port_connected = | |
568 | cur_cc_descr_attr->value.sink_input_port_connected_method; | |
55bb57e0 | 569 | break; |
55bb57e0 | 570 | default: |
d94d92ac PP |
571 | abort(); |
572 | } | |
573 | break; | |
574 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_OUTPUT_PORT_CONNECTED_METHOD: | |
575 | switch (cc_type) { | |
576 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
577 | cc_full_descr->methods.source.output_port_connected = | |
578 | cur_cc_descr_attr->value.source_output_port_connected_method; | |
579 | break; | |
580 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
581 | cc_full_descr->methods.filter.output_port_connected = | |
582 | cur_cc_descr_attr->value.filter_output_port_connected_method; | |
55bb57e0 | 583 | break; |
d94d92ac PP |
584 | default: |
585 | abort(); | |
55bb57e0 | 586 | } |
d94d92ac PP |
587 | break; |
588 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_INPUT_PORT_DISCONNECTED_METHOD: | |
589 | switch (cc_type) { | |
590 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
591 | cc_full_descr->methods.filter.input_port_disconnected = | |
592 | cur_cc_descr_attr->value.filter_input_port_disconnected_method; | |
593 | break; | |
594 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
595 | cc_full_descr->methods.sink.input_port_disconnected = | |
596 | cur_cc_descr_attr->value.sink_input_port_disconnected_method; | |
597 | break; | |
598 | default: | |
599 | abort(); | |
600 | } | |
601 | break; | |
602 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_OUTPUT_PORT_DISCONNECTED_METHOD: | |
603 | switch (cc_type) { | |
604 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
605 | cc_full_descr->methods.source.output_port_disconnected = | |
606 | cur_cc_descr_attr->value.source_output_port_disconnected_method; | |
607 | break; | |
608 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
609 | cc_full_descr->methods.filter.output_port_disconnected = | |
610 | cur_cc_descr_attr->value.filter_output_port_disconnected_method; | |
611 | break; | |
612 | default: | |
613 | abort(); | |
614 | } | |
615 | break; | |
d6e69534 | 616 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_MSG_ITER_INIT_METHOD: |
d94d92ac PP |
617 | switch (cc_type) { |
618 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
d6e69534 PP |
619 | cc_full_descr->methods.source.msg_iter_init = |
620 | cur_cc_descr_attr->value.source_msg_iter_init_method; | |
d94d92ac PP |
621 | break; |
622 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
d6e69534 PP |
623 | cc_full_descr->methods.filter.msg_iter_init = |
624 | cur_cc_descr_attr->value.filter_msg_iter_init_method; | |
d94d92ac PP |
625 | break; |
626 | default: | |
627 | abort(); | |
628 | } | |
629 | break; | |
d6e69534 | 630 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_MSG_ITER_FINALIZE_METHOD: |
d94d92ac PP |
631 | switch (cc_type) { |
632 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
d6e69534 PP |
633 | cc_full_descr->methods.source.msg_iter_finalize = |
634 | cur_cc_descr_attr->value.source_msg_iter_finalize_method; | |
d94d92ac PP |
635 | break; |
636 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
d6e69534 PP |
637 | cc_full_descr->methods.filter.msg_iter_finalize = |
638 | cur_cc_descr_attr->value.filter_msg_iter_finalize_method; | |
d94d92ac PP |
639 | break; |
640 | default: | |
641 | abort(); | |
642 | } | |
643 | break; | |
644 | default: | |
645 | /* | |
646 | * WARN-level logging because this | |
647 | * should not happen with the | |
648 | * appropriate ABI version. If we're | |
649 | * here, we know that for the reported | |
650 | * version of the ABI, this attribute is | |
651 | * unknown. | |
652 | */ | |
653 | BT_LOGW("Ignoring unknown component class descriptor attribute: " | |
654 | "plugin-path=\"%s\", " | |
655 | "plugin-name=\"%s\", " | |
656 | "comp-class-name=\"%s\", " | |
657 | "comp-class-type=%s, " | |
658 | "attr-type-name=\"%s\", " | |
659 | "attr-type-id=%d", | |
660 | spec->shared_lib_handle->path ? | |
661 | spec->shared_lib_handle->path->str : | |
662 | NULL, | |
663 | descriptor->name, | |
664 | cur_cc_descr_attr->comp_class_descriptor->name, | |
665 | bt_component_class_type_string( | |
666 | cur_cc_descr_attr->comp_class_descriptor->type), | |
667 | cur_cc_descr_attr->type_name, | |
668 | cur_cc_descr_attr->type); | |
669 | break; | |
55bb57e0 PP |
670 | } |
671 | } | |
672 | } | |
673 | ||
674 | /* Initialize plugin */ | |
675 | if (spec->init) { | |
3fe0bf43 | 676 | BT_LOGD_STR("Calling user's plugin initialization function."); |
55bb57e0 | 677 | status = spec->init(plugin); |
3fe0bf43 PP |
678 | BT_LOGD("User function returned: %s", |
679 | bt_plugin_status_string(status)); | |
680 | ||
55bb57e0 | 681 | if (status < 0) { |
3fe0bf43 | 682 | BT_LOGW_STR("User's plugin initialization function failed."); |
55bb57e0 PP |
683 | goto end; |
684 | } | |
685 | } | |
686 | ||
c55a9f58 | 687 | spec->shared_lib_handle->init_called = BT_TRUE; |
55bb57e0 PP |
688 | |
689 | /* Add described component classes to plugin */ | |
690 | for (i = 0; i < comp_class_full_descriptors->len; i++) { | |
691 | struct comp_class_full_descriptor *cc_full_descr = | |
692 | &g_array_index(comp_class_full_descriptors, | |
693 | struct comp_class_full_descriptor, i); | |
0d72b8c3 PP |
694 | struct bt_component_class *comp_class = NULL; |
695 | struct bt_component_class_source *src_comp_class = NULL; | |
696 | struct bt_component_class_filter *flt_comp_class = NULL; | |
697 | struct bt_component_class_sink *sink_comp_class = NULL; | |
55bb57e0 | 698 | |
3fe0bf43 PP |
699 | BT_LOGD("Creating and setting properties of plugin's component class: " |
700 | "plugin-path=\"%s\", plugin-name=\"%s\", " | |
701 | "comp-class-name=\"%s\", comp-class-type=%s", | |
702 | spec->shared_lib_handle->path ? | |
703 | spec->shared_lib_handle->path->str : | |
704 | NULL, | |
705 | descriptor->name, | |
706 | cc_full_descr->descriptor->name, | |
707 | bt_component_class_type_string( | |
708 | cc_full_descr->descriptor->type)); | |
709 | ||
55bb57e0 PP |
710 | switch (cc_full_descr->descriptor->type) { |
711 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
0d72b8c3 | 712 | src_comp_class = bt_component_class_source_create( |
55bb57e0 | 713 | cc_full_descr->descriptor->name, |
d6e69534 | 714 | cc_full_descr->descriptor->methods.source.msg_iter_next); |
0d72b8c3 | 715 | comp_class = bt_component_class_source_as_component_class( |
d94d92ac | 716 | src_comp_class); |
55bb57e0 PP |
717 | break; |
718 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
0d72b8c3 | 719 | flt_comp_class = bt_component_class_filter_create( |
55bb57e0 | 720 | cc_full_descr->descriptor->name, |
d6e69534 | 721 | cc_full_descr->descriptor->methods.source.msg_iter_next); |
0d72b8c3 | 722 | comp_class = bt_component_class_filter_as_component_class( |
d94d92ac | 723 | flt_comp_class); |
55bb57e0 PP |
724 | break; |
725 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
0d72b8c3 | 726 | sink_comp_class = bt_component_class_sink_create( |
55bb57e0 PP |
727 | cc_full_descr->descriptor->name, |
728 | cc_full_descr->descriptor->methods.sink.consume); | |
0d72b8c3 | 729 | comp_class = bt_component_class_sink_as_component_class( |
d94d92ac | 730 | sink_comp_class); |
55bb57e0 PP |
731 | break; |
732 | default: | |
50ad9320 PP |
733 | /* |
734 | * WARN-level logging because this should not | |
735 | * happen with the appropriate ABI version. If | |
736 | * we're here, we know that for the reported | |
737 | * version of the ABI, this component class type | |
738 | * is unknown. | |
739 | */ | |
3fe0bf43 PP |
740 | BT_LOGW("Ignoring unknown component class type: " |
741 | "plugin-path=\"%s\", plugin-name=\"%s\", " | |
742 | "comp-class-name=\"%s\", comp-class-type=%d", | |
743 | spec->shared_lib_handle->path->str ? | |
744 | spec->shared_lib_handle->path->str : | |
745 | NULL, | |
746 | descriptor->name, | |
55bb57e0 | 747 | cc_full_descr->descriptor->name, |
3fe0bf43 | 748 | cc_full_descr->descriptor->type); |
55bb57e0 PP |
749 | continue; |
750 | } | |
751 | ||
752 | if (!comp_class) { | |
3fe0bf43 | 753 | BT_LOGE_STR("Cannot create component class."); |
55bb57e0 PP |
754 | status = BT_PLUGIN_STATUS_ERROR; |
755 | goto end; | |
756 | } | |
757 | ||
758 | if (cc_full_descr->description) { | |
0d72b8c3 | 759 | ret = bt_component_class_set_description( |
d94d92ac | 760 | comp_class, cc_full_descr->description); |
55bb57e0 | 761 | if (ret) { |
3fe0bf43 | 762 | BT_LOGE_STR("Cannot set component class's description."); |
55bb57e0 | 763 | status = BT_PLUGIN_STATUS_ERROR; |
65300d60 | 764 | BT_OBJECT_PUT_REF_AND_RESET(comp_class); |
55bb57e0 PP |
765 | goto end; |
766 | } | |
767 | } | |
768 | ||
279b3f15 | 769 | if (cc_full_descr->help) { |
0d72b8c3 | 770 | ret = bt_component_class_set_help(comp_class, |
279b3f15 PP |
771 | cc_full_descr->help); |
772 | if (ret) { | |
3fe0bf43 | 773 | BT_LOGE_STR("Cannot set component class's help string."); |
279b3f15 | 774 | status = BT_PLUGIN_STATUS_ERROR; |
65300d60 | 775 | BT_OBJECT_PUT_REF_AND_RESET(comp_class); |
279b3f15 PP |
776 | goto end; |
777 | } | |
778 | } | |
779 | ||
d94d92ac PP |
780 | switch (cc_full_descr->descriptor->type) { |
781 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
782 | if (cc_full_descr->methods.source.init) { | |
0d72b8c3 | 783 | ret = bt_component_class_source_set_init_method( |
d94d92ac PP |
784 | src_comp_class, |
785 | cc_full_descr->methods.source.init); | |
786 | if (ret) { | |
787 | BT_LOGE_STR("Cannot set source component class's initialization method."); | |
788 | status = BT_PLUGIN_STATUS_ERROR; | |
789 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
790 | goto end; | |
791 | } | |
55bb57e0 | 792 | } |
55bb57e0 | 793 | |
d94d92ac | 794 | if (cc_full_descr->methods.source.finalize) { |
0d72b8c3 | 795 | ret = bt_component_class_source_set_finalize_method( |
d94d92ac PP |
796 | src_comp_class, |
797 | cc_full_descr->methods.source.finalize); | |
798 | if (ret) { | |
799 | BT_LOGE_STR("Cannot set source component class's finalization method."); | |
800 | status = BT_PLUGIN_STATUS_ERROR; | |
801 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
802 | goto end; | |
803 | } | |
55bb57e0 | 804 | } |
55bb57e0 | 805 | |
d94d92ac | 806 | if (cc_full_descr->methods.source.query) { |
0d72b8c3 | 807 | ret = bt_component_class_source_set_query_method( |
d94d92ac PP |
808 | src_comp_class, |
809 | cc_full_descr->methods.source.query); | |
810 | if (ret) { | |
811 | BT_LOGE_STR("Cannot set source component class's query method."); | |
812 | status = BT_PLUGIN_STATUS_ERROR; | |
813 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
814 | goto end; | |
815 | } | |
8463eac2 | 816 | } |
8463eac2 | 817 | |
d94d92ac | 818 | if (cc_full_descr->methods.source.accept_output_port_connection) { |
0d72b8c3 | 819 | ret = bt_component_class_source_set_accept_output_port_connection_method( |
d94d92ac PP |
820 | src_comp_class, |
821 | cc_full_descr->methods.source.accept_output_port_connection); | |
822 | if (ret) { | |
823 | BT_LOGE_STR("Cannot set source component class's \"accept input output connection\" method."); | |
824 | status = BT_PLUGIN_STATUS_ERROR; | |
825 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
826 | goto end; | |
827 | } | |
72b913fb | 828 | } |
72b913fb | 829 | |
d94d92ac | 830 | if (cc_full_descr->methods.source.output_port_connected) { |
0d72b8c3 | 831 | ret = bt_component_class_source_set_output_port_connected_method( |
d94d92ac PP |
832 | src_comp_class, |
833 | cc_full_descr->methods.source.output_port_connected); | |
834 | if (ret) { | |
835 | BT_LOGE_STR("Cannot set source component class's \"output port connected\" method."); | |
836 | status = BT_PLUGIN_STATUS_ERROR; | |
837 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
838 | goto end; | |
839 | } | |
0d8b4d8e | 840 | } |
0d8b4d8e | 841 | |
d94d92ac | 842 | if (cc_full_descr->methods.source.output_port_disconnected) { |
0d72b8c3 | 843 | ret = bt_component_class_source_set_output_port_disconnected_method( |
d94d92ac PP |
844 | src_comp_class, |
845 | cc_full_descr->methods.source.output_port_disconnected); | |
846 | if (ret) { | |
847 | BT_LOGE_STR("Cannot set source component class's \"output port disconnected\" method."); | |
848 | status = BT_PLUGIN_STATUS_ERROR; | |
849 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
850 | goto end; | |
851 | } | |
2d41b99e | 852 | } |
2d41b99e | 853 | |
d6e69534 PP |
854 | if (cc_full_descr->methods.source.msg_iter_init) { |
855 | ret = bt_component_class_source_set_message_iterator_init_method( | |
d94d92ac | 856 | src_comp_class, |
d6e69534 | 857 | cc_full_descr->methods.source.msg_iter_init); |
55bb57e0 | 858 | if (ret) { |
d6e69534 | 859 | BT_LOGE_STR("Cannot set source component class's message iterator initialization method."); |
55bb57e0 | 860 | status = BT_PLUGIN_STATUS_ERROR; |
d94d92ac | 861 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); |
55bb57e0 PP |
862 | goto end; |
863 | } | |
864 | } | |
865 | ||
d6e69534 PP |
866 | if (cc_full_descr->methods.source.msg_iter_finalize) { |
867 | ret = bt_component_class_source_set_message_iterator_finalize_method( | |
d94d92ac | 868 | src_comp_class, |
d6e69534 | 869 | cc_full_descr->methods.source.msg_iter_finalize); |
55bb57e0 | 870 | if (ret) { |
d6e69534 | 871 | BT_LOGE_STR("Cannot set source component class's message iterator finalization method."); |
55bb57e0 | 872 | status = BT_PLUGIN_STATUS_ERROR; |
d94d92ac | 873 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); |
55bb57e0 PP |
874 | goto end; |
875 | } | |
876 | } | |
d94d92ac | 877 | |
55bb57e0 PP |
878 | break; |
879 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
d94d92ac | 880 | if (cc_full_descr->methods.filter.init) { |
0d72b8c3 | 881 | ret = bt_component_class_filter_set_init_method( |
d94d92ac PP |
882 | flt_comp_class, |
883 | cc_full_descr->methods.filter.init); | |
884 | if (ret) { | |
885 | BT_LOGE_STR("Cannot set filter component class's initialization method."); | |
886 | status = BT_PLUGIN_STATUS_ERROR; | |
887 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
888 | goto end; | |
889 | } | |
890 | } | |
891 | ||
892 | if (cc_full_descr->methods.filter.finalize) { | |
0d72b8c3 | 893 | ret = bt_component_class_filter_set_finalize_method( |
d94d92ac PP |
894 | flt_comp_class, |
895 | cc_full_descr->methods.filter.finalize); | |
896 | if (ret) { | |
897 | BT_LOGE_STR("Cannot set filter component class's finalization method."); | |
898 | status = BT_PLUGIN_STATUS_ERROR; | |
899 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
900 | goto end; | |
901 | } | |
902 | } | |
903 | ||
904 | if (cc_full_descr->methods.filter.query) { | |
0d72b8c3 | 905 | ret = bt_component_class_filter_set_query_method( |
d94d92ac PP |
906 | flt_comp_class, |
907 | cc_full_descr->methods.filter.query); | |
908 | if (ret) { | |
909 | BT_LOGE_STR("Cannot set filter component class's query method."); | |
910 | status = BT_PLUGIN_STATUS_ERROR; | |
911 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
912 | goto end; | |
913 | } | |
914 | } | |
915 | ||
916 | if (cc_full_descr->methods.filter.accept_input_port_connection) { | |
0d72b8c3 | 917 | ret = bt_component_class_filter_set_accept_input_port_connection_method( |
d94d92ac PP |
918 | flt_comp_class, |
919 | cc_full_descr->methods.filter.accept_input_port_connection); | |
920 | if (ret) { | |
921 | BT_LOGE_STR("Cannot set filter component class's \"accept input port connection\" method."); | |
922 | status = BT_PLUGIN_STATUS_ERROR; | |
923 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
924 | goto end; | |
925 | } | |
926 | } | |
927 | ||
928 | if (cc_full_descr->methods.filter.accept_output_port_connection) { | |
0d72b8c3 | 929 | ret = bt_component_class_filter_set_accept_output_port_connection_method( |
d94d92ac PP |
930 | flt_comp_class, |
931 | cc_full_descr->methods.filter.accept_output_port_connection); | |
932 | if (ret) { | |
933 | BT_LOGE_STR("Cannot set filter component class's \"accept input output connection\" method."); | |
934 | status = BT_PLUGIN_STATUS_ERROR; | |
935 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
936 | goto end; | |
937 | } | |
938 | } | |
939 | ||
940 | if (cc_full_descr->methods.filter.input_port_connected) { | |
0d72b8c3 | 941 | ret = bt_component_class_filter_set_input_port_connected_method( |
d94d92ac PP |
942 | flt_comp_class, |
943 | cc_full_descr->methods.filter.input_port_connected); | |
944 | if (ret) { | |
945 | BT_LOGE_STR("Cannot set filter component class's \"input port connected\" method."); | |
946 | status = BT_PLUGIN_STATUS_ERROR; | |
947 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
948 | goto end; | |
949 | } | |
950 | } | |
951 | ||
952 | if (cc_full_descr->methods.filter.output_port_connected) { | |
0d72b8c3 | 953 | ret = bt_component_class_filter_set_output_port_connected_method( |
d94d92ac PP |
954 | flt_comp_class, |
955 | cc_full_descr->methods.filter.output_port_connected); | |
956 | if (ret) { | |
957 | BT_LOGE_STR("Cannot set filter component class's \"output port connected\" method."); | |
958 | status = BT_PLUGIN_STATUS_ERROR; | |
959 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
960 | goto end; | |
961 | } | |
962 | } | |
963 | ||
964 | if (cc_full_descr->methods.filter.input_port_disconnected) { | |
0d72b8c3 | 965 | ret = bt_component_class_filter_set_input_port_disconnected_method( |
d94d92ac PP |
966 | flt_comp_class, |
967 | cc_full_descr->methods.filter.input_port_disconnected); | |
968 | if (ret) { | |
969 | BT_LOGE_STR("Cannot set filter component class's \"input port disconnected\" method."); | |
970 | status = BT_PLUGIN_STATUS_ERROR; | |
971 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
972 | goto end; | |
973 | } | |
974 | } | |
975 | ||
976 | if (cc_full_descr->methods.filter.output_port_disconnected) { | |
0d72b8c3 | 977 | ret = bt_component_class_filter_set_output_port_disconnected_method( |
d94d92ac PP |
978 | flt_comp_class, |
979 | cc_full_descr->methods.filter.output_port_disconnected); | |
980 | if (ret) { | |
981 | BT_LOGE_STR("Cannot set filter component class's \"output port disconnected\" method."); | |
982 | status = BT_PLUGIN_STATUS_ERROR; | |
983 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
984 | goto end; | |
985 | } | |
986 | } | |
987 | ||
d6e69534 PP |
988 | if (cc_full_descr->methods.filter.msg_iter_init) { |
989 | ret = bt_component_class_filter_set_message_iterator_init_method( | |
d94d92ac | 990 | flt_comp_class, |
d6e69534 | 991 | cc_full_descr->methods.filter.msg_iter_init); |
55bb57e0 | 992 | if (ret) { |
d6e69534 | 993 | BT_LOGE_STR("Cannot set filter component class's message iterator initialization method."); |
55bb57e0 | 994 | status = BT_PLUGIN_STATUS_ERROR; |
d94d92ac | 995 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); |
55bb57e0 PP |
996 | goto end; |
997 | } | |
998 | } | |
999 | ||
d6e69534 PP |
1000 | if (cc_full_descr->methods.filter.msg_iter_finalize) { |
1001 | ret = bt_component_class_filter_set_message_iterator_finalize_method( | |
d94d92ac | 1002 | flt_comp_class, |
d6e69534 | 1003 | cc_full_descr->methods.filter.msg_iter_finalize); |
55bb57e0 | 1004 | if (ret) { |
d6e69534 | 1005 | BT_LOGE_STR("Cannot set filter component class's message iterator finalization method."); |
55bb57e0 | 1006 | status = BT_PLUGIN_STATUS_ERROR; |
d94d92ac | 1007 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); |
55bb57e0 PP |
1008 | goto end; |
1009 | } | |
1010 | } | |
d94d92ac | 1011 | |
55bb57e0 PP |
1012 | break; |
1013 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
d94d92ac | 1014 | if (cc_full_descr->methods.sink.init) { |
0d72b8c3 | 1015 | ret = bt_component_class_sink_set_init_method( |
d94d92ac PP |
1016 | sink_comp_class, |
1017 | cc_full_descr->methods.sink.init); | |
1018 | if (ret) { | |
1019 | BT_LOGE_STR("Cannot set sink component class's initialization method."); | |
1020 | status = BT_PLUGIN_STATUS_ERROR; | |
1021 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1022 | goto end; | |
1023 | } | |
1024 | } | |
1025 | ||
1026 | if (cc_full_descr->methods.sink.finalize) { | |
0d72b8c3 | 1027 | ret = bt_component_class_sink_set_finalize_method( |
d94d92ac PP |
1028 | sink_comp_class, |
1029 | cc_full_descr->methods.sink.finalize); | |
1030 | if (ret) { | |
1031 | BT_LOGE_STR("Cannot set sink component class's finalization method."); | |
1032 | status = BT_PLUGIN_STATUS_ERROR; | |
1033 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1034 | goto end; | |
1035 | } | |
1036 | } | |
1037 | ||
1038 | if (cc_full_descr->methods.sink.query) { | |
0d72b8c3 | 1039 | ret = bt_component_class_sink_set_query_method( |
d94d92ac PP |
1040 | sink_comp_class, |
1041 | cc_full_descr->methods.sink.query); | |
1042 | if (ret) { | |
1043 | BT_LOGE_STR("Cannot set sink component class's query method."); | |
1044 | status = BT_PLUGIN_STATUS_ERROR; | |
1045 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1046 | goto end; | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | if (cc_full_descr->methods.sink.accept_input_port_connection) { | |
0d72b8c3 | 1051 | ret = bt_component_class_sink_set_accept_input_port_connection_method( |
d94d92ac PP |
1052 | sink_comp_class, |
1053 | cc_full_descr->methods.sink.accept_input_port_connection); | |
1054 | if (ret) { | |
1055 | BT_LOGE_STR("Cannot set sink component class's \"accept input port connection\" method."); | |
1056 | status = BT_PLUGIN_STATUS_ERROR; | |
1057 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1058 | goto end; | |
1059 | } | |
1060 | } | |
1061 | ||
1062 | if (cc_full_descr->methods.sink.input_port_connected) { | |
0d72b8c3 | 1063 | ret = bt_component_class_sink_set_input_port_connected_method( |
d94d92ac PP |
1064 | sink_comp_class, |
1065 | cc_full_descr->methods.sink.input_port_connected); | |
1066 | if (ret) { | |
1067 | BT_LOGE_STR("Cannot set sink component class's \"input port connected\" method."); | |
1068 | status = BT_PLUGIN_STATUS_ERROR; | |
1069 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1070 | goto end; | |
1071 | } | |
1072 | } | |
1073 | ||
1074 | if (cc_full_descr->methods.sink.input_port_disconnected) { | |
0d72b8c3 | 1075 | ret = bt_component_class_sink_set_input_port_disconnected_method( |
d94d92ac PP |
1076 | sink_comp_class, |
1077 | cc_full_descr->methods.sink.input_port_disconnected); | |
1078 | if (ret) { | |
1079 | BT_LOGE_STR("Cannot set sink component class's \"input port disconnected\" method."); | |
1080 | status = BT_PLUGIN_STATUS_ERROR; | |
1081 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1082 | goto end; | |
1083 | } | |
1084 | } | |
1085 | ||
55bb57e0 PP |
1086 | break; |
1087 | default: | |
0fbb9a9f | 1088 | abort(); |
55bb57e0 PP |
1089 | } |
1090 | ||
1091 | /* | |
1092 | * Add component class to the plugin object. | |
1093 | * | |
1094 | * This will call back | |
1095 | * bt_plugin_so_on_add_component_class() so that we can | |
d94d92ac PP |
1096 | * add a mapping in the component class list when we |
1097 | * know the component class is successfully added. | |
55bb57e0 PP |
1098 | */ |
1099 | status = bt_plugin_add_component_class(plugin, | |
d94d92ac | 1100 | (void *) comp_class); |
65300d60 | 1101 | BT_OBJECT_PUT_REF_AND_RESET(comp_class); |
55bb57e0 | 1102 | if (status < 0) { |
3fe0bf43 | 1103 | BT_LOGE("Cannot add component class to plugin."); |
55bb57e0 PP |
1104 | goto end; |
1105 | } | |
1106 | } | |
1107 | ||
55bb57e0 PP |
1108 | end: |
1109 | g_array_free(comp_class_full_descriptors, TRUE); | |
1110 | return status; | |
1111 | } | |
1112 | ||
1113 | static | |
1114 | struct bt_plugin *bt_plugin_so_create_empty( | |
1115 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle) | |
1116 | { | |
1117 | struct bt_plugin *plugin; | |
1118 | struct bt_plugin_so_spec_data *spec; | |
1119 | ||
1120 | plugin = bt_plugin_create_empty(BT_PLUGIN_TYPE_SO); | |
1121 | if (!plugin) { | |
1122 | goto error; | |
1123 | } | |
1124 | ||
6fbd4105 | 1125 | plugin->destroy_spec_data = bt_plugin_so_destroy_spec_data; |
55bb57e0 PP |
1126 | plugin->spec_data = g_new0(struct bt_plugin_so_spec_data, 1); |
1127 | if (!plugin->spec_data) { | |
3fe0bf43 | 1128 | BT_LOGE_STR("Failed to allocate one SO plugin specific data structure."); |
55bb57e0 PP |
1129 | goto error; |
1130 | } | |
1131 | ||
1132 | spec = plugin->spec_data; | |
398454ed PP |
1133 | spec->shared_lib_handle = shared_lib_handle; |
1134 | bt_object_get_no_null_check(spec->shared_lib_handle); | |
55bb57e0 PP |
1135 | goto end; |
1136 | ||
1137 | error: | |
65300d60 | 1138 | BT_OBJECT_PUT_REF_AND_RESET(plugin); |
55bb57e0 PP |
1139 | |
1140 | end: | |
1141 | return plugin; | |
1142 | } | |
1143 | ||
52238017 MJ |
1144 | static |
1145 | size_t count_non_null_items_in_section(const void *begin, const void *end) | |
1146 | { | |
1147 | size_t count = 0; | |
1148 | const int * const *begin_int = (const int * const *) begin; | |
1149 | const int * const *end_int = (const int * const *) end; | |
1150 | const int * const *iter; | |
1151 | ||
1152 | for (iter = begin_int; iter != end_int; iter++) { | |
1153 | if (*iter) { | |
1154 | count++; | |
1155 | } | |
1156 | } | |
1157 | ||
1158 | return count; | |
1159 | } | |
1160 | ||
55bb57e0 | 1161 | static |
a8ff38ef | 1162 | struct bt_plugin_set *bt_plugin_so_create_all_from_sections( |
55bb57e0 PP |
1163 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle, |
1164 | struct __bt_plugin_descriptor const * const *descriptors_begin, | |
1165 | struct __bt_plugin_descriptor const * const *descriptors_end, | |
1166 | struct __bt_plugin_descriptor_attribute const * const *attrs_begin, | |
1167 | struct __bt_plugin_descriptor_attribute const * const *attrs_end, | |
1168 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_begin, | |
1169 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_end, | |
1170 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_begin, | |
1171 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_end) | |
1172 | { | |
1173 | size_t descriptor_count; | |
1174 | size_t attrs_count; | |
1175 | size_t cc_descriptors_count; | |
1176 | size_t cc_descr_attrs_count; | |
1177 | size_t i; | |
a8ff38ef | 1178 | struct bt_plugin_set *plugin_set = NULL; |
55bb57e0 | 1179 | |
52238017 MJ |
1180 | descriptor_count = count_non_null_items_in_section(descriptors_begin, descriptors_end); |
1181 | attrs_count = count_non_null_items_in_section(attrs_begin, attrs_end); | |
1182 | cc_descriptors_count = count_non_null_items_in_section(cc_descriptors_begin, cc_descriptors_end); | |
1183 | cc_descr_attrs_count = count_non_null_items_in_section(cc_descr_attrs_begin, cc_descr_attrs_end); | |
3fe0bf43 PP |
1184 | |
1185 | BT_LOGD("Creating all SO plugins from sections: " | |
1186 | "plugin-path=\"%s\", " | |
1187 | "descr-begin-addr=%p, descr-end-addr=%p, " | |
1188 | "attrs-begin-addr=%p, attrs-end-addr=%p, " | |
1189 | "cc-descr-begin-addr=%p, cc-descr-end-addr=%p, " | |
1190 | "cc-descr-attrs-begin-addr=%p, cc-descr-attrs-end-addr=%p, " | |
1191 | "descr-count=%zu, attrs-count=%zu, " | |
1192 | "cc-descr-count=%zu, cc-descr-attrs-count=%zu", | |
1193 | shared_lib_handle->path ? shared_lib_handle->path->str : NULL, | |
1194 | descriptors_begin, descriptors_end, | |
1195 | attrs_begin, attrs_end, | |
1196 | cc_descriptors_begin, cc_descriptors_end, | |
1197 | cc_descr_attrs_begin, cc_descr_attrs_end, | |
1198 | descriptor_count, attrs_count, | |
1199 | cc_descriptors_count, cc_descr_attrs_count); | |
a8ff38ef PP |
1200 | plugin_set = bt_plugin_set_create(); |
1201 | if (!plugin_set) { | |
3fe0bf43 | 1202 | BT_LOGE_STR("Cannot create empty plugin set."); |
55bb57e0 PP |
1203 | goto error; |
1204 | } | |
1205 | ||
52238017 | 1206 | for (i = 0; i < descriptors_end - descriptors_begin; i++) { |
55bb57e0 PP |
1207 | enum bt_plugin_status status; |
1208 | const struct __bt_plugin_descriptor *descriptor = | |
1209 | descriptors_begin[i]; | |
1210 | struct bt_plugin *plugin; | |
1211 | ||
52238017 MJ |
1212 | if (descriptor == NULL) { |
1213 | continue; | |
1214 | } | |
1215 | ||
3fe0bf43 PP |
1216 | BT_LOGD("Creating plugin object for plugin: " |
1217 | "name=\"%s\", abi-major=%d, abi-minor=%d", | |
1218 | descriptor->name, descriptor->major, descriptor->minor); | |
55bb57e0 PP |
1219 | |
1220 | if (descriptor->major > __BT_PLUGIN_VERSION_MAJOR) { | |
50ad9320 PP |
1221 | /* |
1222 | * DEBUG-level logging because we're only | |
1223 | * _trying_ to open this file as a compatible | |
1224 | * Babeltrace plugin: if it's not, it's not an | |
1225 | * error. And because this can be tried during | |
c8db3219 | 1226 | * bt_plugin_find_all_from_dir(), it's not |
50ad9320 PP |
1227 | * even a warning. |
1228 | */ | |
1229 | BT_LOGD("Unknown ABI major version: abi-major=%d", | |
55bb57e0 PP |
1230 | descriptor->major); |
1231 | goto error; | |
1232 | } | |
1233 | ||
1234 | plugin = bt_plugin_so_create_empty(shared_lib_handle); | |
1235 | if (!plugin) { | |
3fe0bf43 | 1236 | BT_LOGE_STR("Cannot create empty shared library handle."); |
55bb57e0 PP |
1237 | goto error; |
1238 | } | |
1239 | ||
1240 | if (shared_lib_handle && shared_lib_handle->path) { | |
1241 | bt_plugin_set_path(plugin, shared_lib_handle->path->str); | |
1242 | } | |
1243 | ||
1244 | status = bt_plugin_so_init(plugin, descriptor, attrs_begin, | |
1245 | attrs_end, cc_descriptors_begin, cc_descriptors_end, | |
1246 | cc_descr_attrs_begin, cc_descr_attrs_end); | |
1247 | if (status < 0) { | |
50ad9320 PP |
1248 | /* |
1249 | * DEBUG-level logging because we're only | |
1250 | * _trying_ to open this file as a compatible | |
1251 | * Babeltrace plugin: if it's not, it's not an | |
1252 | * error. And because this can be tried during | |
c8db3219 | 1253 | * bt_plugin_find_all_from_dir(), it's not |
50ad9320 PP |
1254 | * even a warning. |
1255 | */ | |
1256 | BT_LOGD_STR("Cannot initialize SO plugin object from sections."); | |
65300d60 | 1257 | BT_OBJECT_PUT_REF_AND_RESET(plugin); |
55bb57e0 PP |
1258 | goto error; |
1259 | } | |
1260 | ||
a8ff38ef PP |
1261 | /* Add to plugin set */ |
1262 | bt_plugin_set_add_plugin(plugin_set, plugin); | |
65300d60 | 1263 | bt_object_put_ref(plugin); |
55bb57e0 PP |
1264 | } |
1265 | ||
1266 | goto end; | |
1267 | ||
1268 | error: | |
65300d60 | 1269 | BT_OBJECT_PUT_REF_AND_RESET(plugin_set); |
55bb57e0 PP |
1270 | |
1271 | end: | |
a8ff38ef | 1272 | return plugin_set; |
55bb57e0 PP |
1273 | } |
1274 | ||
1275 | BT_HIDDEN | |
a8ff38ef | 1276 | struct bt_plugin_set *bt_plugin_so_create_all_from_static(void) |
55bb57e0 | 1277 | { |
a8ff38ef | 1278 | struct bt_plugin_set *plugin_set = NULL; |
55bb57e0 PP |
1279 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle = |
1280 | bt_plugin_so_shared_lib_handle_create(NULL); | |
1281 | ||
1282 | if (!shared_lib_handle) { | |
1283 | goto end; | |
1284 | } | |
1285 | ||
3fe0bf43 | 1286 | BT_LOGD_STR("Creating all SO plugins from built-in plugins."); |
a8ff38ef | 1287 | plugin_set = bt_plugin_so_create_all_from_sections(shared_lib_handle, |
52238017 MJ |
1288 | __bt_get_begin_section_plugin_descriptors(), |
1289 | __bt_get_end_section_plugin_descriptors(), | |
1290 | __bt_get_begin_section_plugin_descriptor_attributes(), | |
1291 | __bt_get_end_section_plugin_descriptor_attributes(), | |
1292 | __bt_get_begin_section_component_class_descriptors(), | |
1293 | __bt_get_end_section_component_class_descriptors(), | |
1294 | __bt_get_begin_section_component_class_descriptor_attributes(), | |
1295 | __bt_get_end_section_component_class_descriptor_attributes()); | |
55bb57e0 PP |
1296 | |
1297 | end: | |
65300d60 | 1298 | BT_OBJECT_PUT_REF_AND_RESET(shared_lib_handle); |
55bb57e0 | 1299 | |
a8ff38ef | 1300 | return plugin_set; |
55bb57e0 PP |
1301 | } |
1302 | ||
1303 | BT_HIDDEN | |
a8ff38ef | 1304 | struct bt_plugin_set *bt_plugin_so_create_all_from_file(const char *path) |
55bb57e0 PP |
1305 | { |
1306 | size_t path_len; | |
a8ff38ef | 1307 | struct bt_plugin_set *plugin_set = NULL; |
55bb57e0 PP |
1308 | struct __bt_plugin_descriptor const * const *descriptors_begin = NULL; |
1309 | struct __bt_plugin_descriptor const * const *descriptors_end = NULL; | |
1310 | struct __bt_plugin_descriptor_attribute const * const *attrs_begin = NULL; | |
1311 | struct __bt_plugin_descriptor_attribute const * const *attrs_end = NULL; | |
1312 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_begin = NULL; | |
1313 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_end = NULL; | |
1314 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_begin = NULL; | |
1315 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_end = NULL; | |
52238017 MJ |
1316 | struct __bt_plugin_descriptor const * const *(*get_begin_section_plugin_descriptors)(void); |
1317 | struct __bt_plugin_descriptor const * const *(*get_end_section_plugin_descriptors)(void); | |
1318 | struct __bt_plugin_descriptor_attribute const * const *(*get_begin_section_plugin_descriptor_attributes)(void); | |
1319 | struct __bt_plugin_descriptor_attribute const * const *(*get_end_section_plugin_descriptor_attributes)(void); | |
1320 | struct __bt_plugin_component_class_descriptor const * const *(*get_begin_section_component_class_descriptors)(void); | |
1321 | struct __bt_plugin_component_class_descriptor const * const *(*get_end_section_component_class_descriptors)(void); | |
1322 | struct __bt_plugin_component_class_descriptor_attribute const * const *(*get_begin_section_component_class_descriptor_attributes)(void); | |
1323 | struct __bt_plugin_component_class_descriptor_attribute const * const *(*get_end_section_component_class_descriptor_attributes)(void); | |
c55a9f58 | 1324 | bt_bool is_libtool_wrapper = BT_FALSE, is_shared_object = BT_FALSE; |
55bb57e0 PP |
1325 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle = NULL; |
1326 | ||
1327 | if (!path) { | |
3fe0bf43 | 1328 | BT_LOGW_STR("Invalid parameter: path is NULL."); |
55bb57e0 PP |
1329 | goto end; |
1330 | } | |
1331 | ||
3fe0bf43 | 1332 | BT_LOGD("Creating all SO plugins from file: path=\"%s\"", path); |
55bb57e0 PP |
1333 | path_len = strlen(path); |
1334 | if (path_len <= PLUGIN_SUFFIX_LEN) { | |
3fe0bf43 PP |
1335 | BT_LOGW("Invalid parameter: path length is too short: " |
1336 | "path-length=%zu", path_len); | |
55bb57e0 PP |
1337 | goto end; |
1338 | } | |
1339 | ||
1340 | path_len++; | |
1341 | /* | |
1342 | * Check if the file ends with a known plugin file type suffix (i.e. .so | |
1343 | * or .la on Linux). | |
1344 | */ | |
1345 | is_libtool_wrapper = !strncmp(LIBTOOL_PLUGIN_SUFFIX, | |
1346 | path + path_len - LIBTOOL_PLUGIN_SUFFIX_LEN, | |
1347 | LIBTOOL_PLUGIN_SUFFIX_LEN); | |
1348 | is_shared_object = !strncmp(NATIVE_PLUGIN_SUFFIX, | |
1349 | path + path_len - NATIVE_PLUGIN_SUFFIX_LEN, | |
1350 | NATIVE_PLUGIN_SUFFIX_LEN); | |
1351 | if (!is_shared_object && !is_libtool_wrapper) { | |
3fe0bf43 PP |
1352 | /* Name indicates this is not a plugin file; not an error */ |
1353 | BT_LOGV("File is not a SO plugin file: path=\"%s\"", path); | |
55bb57e0 PP |
1354 | goto end; |
1355 | } | |
1356 | ||
1357 | shared_lib_handle = bt_plugin_so_shared_lib_handle_create(path); | |
1358 | if (!shared_lib_handle) { | |
50ad9320 | 1359 | BT_LOGD_STR("Cannot create shared library handle."); |
55bb57e0 PP |
1360 | goto end; |
1361 | } | |
1362 | ||
52238017 MJ |
1363 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_plugin_descriptors", |
1364 | (gpointer *) &get_begin_section_plugin_descriptors)) { | |
1365 | descriptors_begin = get_begin_section_plugin_descriptors(); | |
1366 | } else { | |
3fe0bf43 PP |
1367 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1368 | "symbol=\"%s\"", path, | |
52238017 | 1369 | "__bt_get_begin_section_plugin_descriptors"); |
55bb57e0 PP |
1370 | goto end; |
1371 | } | |
1372 | ||
52238017 MJ |
1373 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_plugin_descriptors", |
1374 | (gpointer *) &get_end_section_plugin_descriptors)) { | |
1375 | descriptors_end = get_end_section_plugin_descriptors(); | |
1376 | } else { | |
3fe0bf43 PP |
1377 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1378 | "symbol=\"%s\"", path, | |
52238017 | 1379 | "__bt_get_end_section_plugin_descriptors"); |
55bb57e0 PP |
1380 | goto end; |
1381 | } | |
1382 | ||
52238017 MJ |
1383 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_plugin_descriptor_attributes", |
1384 | (gpointer *) &get_begin_section_plugin_descriptor_attributes)) { | |
1385 | attrs_begin = get_begin_section_plugin_descriptor_attributes(); | |
1386 | } else { | |
3fe0bf43 PP |
1387 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1388 | "symbol=\"%s\"", path, | |
52238017 | 1389 | "__bt_get_begin_section_plugin_descriptor_attributes"); |
55bb57e0 PP |
1390 | } |
1391 | ||
52238017 MJ |
1392 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_plugin_descriptor_attributes", |
1393 | (gpointer *) &get_end_section_plugin_descriptor_attributes)) { | |
1394 | attrs_end = get_end_section_plugin_descriptor_attributes(); | |
1395 | } else { | |
3fe0bf43 PP |
1396 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1397 | "symbol=\"%s\"", path, | |
52238017 | 1398 | "__bt_get_end_section_plugin_descriptor_attributes"); |
55bb57e0 PP |
1399 | } |
1400 | ||
1401 | if ((!!attrs_begin - !!attrs_end) != 0) { | |
3fe0bf43 PP |
1402 | BT_LOGD("Found section start or end symbol, but not both: " |
1403 | "path=\"%s\", symbol-start=\"%s\", " | |
1404 | "symbol-end=\"%s\", symbol-start-addr=%p, " | |
1405 | "symbol-end-addr=%p", | |
52238017 MJ |
1406 | path, "__bt_get_begin_section_plugin_descriptor_attributes", |
1407 | "__bt_get_end_section_plugin_descriptor_attributes", | |
3fe0bf43 | 1408 | attrs_begin, attrs_end); |
55bb57e0 PP |
1409 | goto end; |
1410 | } | |
1411 | ||
52238017 MJ |
1412 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_component_class_descriptors", |
1413 | (gpointer *) &get_begin_section_component_class_descriptors)) { | |
1414 | cc_descriptors_begin = get_begin_section_component_class_descriptors(); | |
1415 | } else { | |
3fe0bf43 PP |
1416 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1417 | "symbol=\"%s\"", path, | |
52238017 | 1418 | "__bt_get_begin_section_component_class_descriptors"); |
55bb57e0 PP |
1419 | } |
1420 | ||
52238017 MJ |
1421 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_component_class_descriptors", |
1422 | (gpointer *) &get_end_section_component_class_descriptors)) { | |
1423 | cc_descriptors_end = get_end_section_component_class_descriptors(); | |
1424 | } else { | |
3fe0bf43 PP |
1425 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1426 | "symbol=\"%s\"", path, | |
52238017 | 1427 | "__bt_get_end_section_component_class_descriptors"); |
55bb57e0 PP |
1428 | } |
1429 | ||
1430 | if ((!!cc_descriptors_begin - !!cc_descriptors_end) != 0) { | |
3fe0bf43 PP |
1431 | BT_LOGD("Found section start or end symbol, but not both: " |
1432 | "path=\"%s\", symbol-start=\"%s\", " | |
1433 | "symbol-end=\"%s\", symbol-start-addr=%p, " | |
1434 | "symbol-end-addr=%p", | |
52238017 MJ |
1435 | path, "__bt_get_begin_section_component_class_descriptors", |
1436 | "__bt_get_end_section_component_class_descriptors", | |
3fe0bf43 | 1437 | cc_descriptors_begin, cc_descriptors_end); |
55bb57e0 PP |
1438 | goto end; |
1439 | } | |
1440 | ||
52238017 MJ |
1441 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_component_class_descriptor_attributes", |
1442 | (gpointer *) &get_begin_section_component_class_descriptor_attributes)) { | |
1443 | cc_descr_attrs_begin = get_begin_section_component_class_descriptor_attributes(); | |
1444 | } else { | |
3fe0bf43 PP |
1445 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1446 | "symbol=\"%s\"", path, | |
52238017 | 1447 | "__bt_get_begin_section_component_class_descriptor_attributes"); |
55bb57e0 PP |
1448 | } |
1449 | ||
52238017 MJ |
1450 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_component_class_descriptor_attributes", |
1451 | (gpointer *) &get_end_section_component_class_descriptor_attributes)) { | |
1452 | cc_descr_attrs_end = get_end_section_component_class_descriptor_attributes(); | |
1453 | } else { | |
3fe0bf43 PP |
1454 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1455 | "symbol=\"%s\"", path, | |
52238017 | 1456 | "__bt_get_end_section_component_class_descriptor_attributes"); |
55bb57e0 PP |
1457 | } |
1458 | ||
1459 | if ((!!cc_descr_attrs_begin - !!cc_descr_attrs_end) != 0) { | |
3fe0bf43 PP |
1460 | BT_LOGD("Found section start or end symbol, but not both: " |
1461 | "path=\"%s\", symbol-start=\"%s\", " | |
1462 | "symbol-end=\"%s\", symbol-start-addr=%p, " | |
1463 | "symbol-end-addr=%p", | |
52238017 MJ |
1464 | path, "__bt_get_begin_section_component_class_descriptor_attributes", |
1465 | "__bt_get_end_section_component_class_descriptor_attributes", | |
3fe0bf43 | 1466 | cc_descr_attrs_begin, cc_descr_attrs_end); |
55bb57e0 PP |
1467 | goto end; |
1468 | } | |
1469 | ||
1470 | /* Initialize plugin */ | |
3fe0bf43 | 1471 | BT_LOGD_STR("Initializing plugin object."); |
a8ff38ef | 1472 | plugin_set = bt_plugin_so_create_all_from_sections(shared_lib_handle, |
55bb57e0 PP |
1473 | descriptors_begin, descriptors_end, attrs_begin, attrs_end, |
1474 | cc_descriptors_begin, cc_descriptors_end, | |
1475 | cc_descr_attrs_begin, cc_descr_attrs_end); | |
1476 | ||
1477 | end: | |
65300d60 | 1478 | BT_OBJECT_PUT_REF_AND_RESET(shared_lib_handle); |
a8ff38ef | 1479 | return plugin_set; |
55bb57e0 PP |
1480 | } |
1481 | ||
1482 | static | |
1483 | void plugin_comp_class_destroy_listener(struct bt_component_class *comp_class, | |
1484 | void *data) | |
1485 | { | |
bfa9a4be | 1486 | bt_list_del(&comp_class->node); |
65300d60 | 1487 | BT_OBJECT_PUT_REF_AND_RESET(comp_class->so_handle); |
bfa9a4be | 1488 | BT_LOGV("Component class destroyed: removed entry from list: " |
3fe0bf43 | 1489 | "comp-cls-addr=%p", comp_class); |
55bb57e0 PP |
1490 | } |
1491 | ||
1492 | BT_HIDDEN | |
3230ee6b | 1493 | void bt_plugin_so_on_add_component_class(struct bt_plugin *plugin, |
55bb57e0 PP |
1494 | struct bt_component_class *comp_class) |
1495 | { | |
55bb57e0 PP |
1496 | struct bt_plugin_so_spec_data *spec = plugin->spec_data; |
1497 | ||
f6ccaed9 PP |
1498 | BT_ASSERT(plugin->spec_data); |
1499 | BT_ASSERT(plugin->type == BT_PLUGIN_TYPE_SO); | |
55bb57e0 | 1500 | |
bfa9a4be | 1501 | bt_list_add(&comp_class->node, &component_class_list); |
398454ed PP |
1502 | comp_class->so_handle = spec->shared_lib_handle; |
1503 | bt_object_get_no_null_check(comp_class->so_handle); | |
55bb57e0 PP |
1504 | |
1505 | /* Add our custom destroy listener */ | |
3230ee6b | 1506 | bt_component_class_add_destroy_listener(comp_class, |
55bb57e0 | 1507 | plugin_comp_class_destroy_listener, NULL); |
55bb57e0 | 1508 | } |