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55bb57e0 | 1 | /* |
f2b0325d | 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 | ||
8c6884d9 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> |
7b53201c 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 | ||
be3c4e36 | 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 | * |
781ae911 | 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); | |
8138bfe1 | 99 | BT_OBJECT_PUT_REF_AND_RESET(comp_class->so_handle); |
55bb57e0 | 100 | } |
834e9996 | 101 | |
bfa9a4be | 102 | BT_LOGD_STR("Released references from all component classes to shared library handles."); |
55bb57e0 PP |
103 | } |
104 | ||
0ae03127 | 105 | static inline |
c8750769 | 106 | const char *bt_self_plugin_status_string(enum bt_self_plugin_status status) |
0ae03127 PP |
107 | { |
108 | switch (status) { | |
c8750769 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"; | |
0ae03127 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 | ||
8b45963b | 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."); |
0ae03127 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 | } |
c6578b03 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); | |
c6578b03 | 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 | ||
1d7bf349 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 | ||
409b4f07 | 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 | |
781ae911 | 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: | |
8138bfe1 | 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 | ||
8b45963b PP |
239 | BT_ASSERT(plugin->type == BT_PLUGIN_TYPE_SO); |
240 | BT_ASSERT(spec); | |
8138bfe1 | 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; |
834e9996 PP |
292 | |
293 | union { | |
294 | struct { | |
7b53201c 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; | |
b09a5592 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; | |
15a52f66 PP |
302 | bt_component_class_source_message_iterator_seek_ns_from_origin_method msg_iter_seek_ns_from_origin; |
303 | bt_component_class_source_message_iterator_seek_beginning_method msg_iter_seek_beginning; | |
304 | bt_component_class_source_message_iterator_can_seek_ns_from_origin_method msg_iter_can_seek_ns_from_origin; | |
305 | bt_component_class_source_message_iterator_can_seek_beginning_method msg_iter_can_seek_beginning; | |
834e9996 PP |
306 | } source; |
307 | ||
308 | struct { | |
7b53201c PP |
309 | bt_component_class_filter_init_method init; |
310 | bt_component_class_filter_finalize_method finalize; | |
311 | bt_component_class_filter_query_method query; | |
312 | bt_component_class_filter_accept_input_port_connection_method accept_input_port_connection; | |
313 | bt_component_class_filter_accept_output_port_connection_method accept_output_port_connection; | |
314 | bt_component_class_filter_input_port_connected_method input_port_connected; | |
315 | bt_component_class_filter_output_port_connected_method output_port_connected; | |
b09a5592 PP |
316 | bt_component_class_filter_message_iterator_init_method msg_iter_init; |
317 | bt_component_class_filter_message_iterator_finalize_method msg_iter_finalize; | |
15a52f66 PP |
318 | bt_component_class_filter_message_iterator_seek_ns_from_origin_method msg_iter_seek_ns_from_origin; |
319 | bt_component_class_filter_message_iterator_seek_beginning_method msg_iter_seek_beginning; | |
320 | bt_component_class_filter_message_iterator_can_seek_ns_from_origin_method msg_iter_can_seek_ns_from_origin; | |
321 | bt_component_class_filter_message_iterator_can_seek_beginning_method msg_iter_can_seek_beginning; | |
834e9996 PP |
322 | } filter; |
323 | ||
324 | struct { | |
7b53201c PP |
325 | bt_component_class_sink_init_method init; |
326 | bt_component_class_sink_finalize_method finalize; | |
327 | bt_component_class_sink_query_method query; | |
328 | bt_component_class_sink_accept_input_port_connection_method accept_input_port_connection; | |
329 | bt_component_class_sink_input_port_connected_method input_port_connected; | |
834e9996 PP |
330 | } sink; |
331 | } methods; | |
55bb57e0 PP |
332 | }; |
333 | ||
334 | enum bt_plugin_status status = BT_PLUGIN_STATUS_OK; | |
335 | struct __bt_plugin_descriptor_attribute const * const *cur_attr_ptr; | |
336 | struct __bt_plugin_component_class_descriptor const * const *cur_cc_descr_ptr; | |
337 | struct __bt_plugin_component_class_descriptor_attribute const * const *cur_cc_descr_attr_ptr; | |
338 | struct bt_plugin_so_spec_data *spec = plugin->spec_data; | |
339 | GArray *comp_class_full_descriptors; | |
340 | size_t i; | |
341 | int ret; | |
342 | ||
3fe0bf43 PP |
343 | BT_LOGD("Initializing plugin object from descriptors found in sections: " |
344 | "plugin-addr=%p, plugin-path=\"%s\", " | |
345 | "attrs-begin-addr=%p, attrs-end-addr=%p, " | |
346 | "cc-descr-begin-addr=%p, cc-descr-end-addr=%p, " | |
347 | "cc-descr-attrs-begin-addr=%p, cc-descr-attrs-end-addr=%p", | |
348 | plugin, | |
349 | spec->shared_lib_handle->path ? | |
350 | spec->shared_lib_handle->path->str : NULL, | |
351 | attrs_begin, attrs_end, | |
352 | cc_descriptors_begin, cc_descriptors_end, | |
353 | cc_descr_attrs_begin, cc_descr_attrs_end); | |
55bb57e0 PP |
354 | comp_class_full_descriptors = g_array_new(FALSE, TRUE, |
355 | sizeof(struct comp_class_full_descriptor)); | |
356 | if (!comp_class_full_descriptors) { | |
3fe0bf43 | 357 | BT_LOGE_STR("Failed to allocate a GArray."); |
55bb57e0 PP |
358 | status = BT_PLUGIN_STATUS_ERROR; |
359 | goto end; | |
360 | } | |
361 | ||
362 | /* Set mandatory attributes */ | |
363 | spec->descriptor = descriptor; | |
364 | bt_plugin_set_name(plugin, descriptor->name); | |
365 | ||
366 | /* | |
367 | * Find and set optional attributes attached to this plugin | |
368 | * descriptor. | |
369 | */ | |
370 | for (cur_attr_ptr = attrs_begin; cur_attr_ptr != attrs_end; cur_attr_ptr++) { | |
371 | const struct __bt_plugin_descriptor_attribute *cur_attr = | |
372 | *cur_attr_ptr; | |
373 | ||
be3c4e36 MJ |
374 | if (cur_attr == NULL) { |
375 | continue; | |
376 | } | |
377 | ||
55bb57e0 PP |
378 | if (cur_attr->plugin_descriptor != descriptor) { |
379 | continue; | |
380 | } | |
381 | ||
382 | switch (cur_attr->type) { | |
383 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_INIT: | |
384 | spec->init = cur_attr->value.init; | |
385 | break; | |
386 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_EXIT: | |
387 | spec->shared_lib_handle->exit = cur_attr->value.exit; | |
388 | break; | |
389 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_AUTHOR: | |
390 | bt_plugin_set_author(plugin, cur_attr->value.author); | |
391 | break; | |
392 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_LICENSE: | |
393 | bt_plugin_set_license(plugin, cur_attr->value.license); | |
394 | break; | |
395 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_DESCRIPTION: | |
396 | bt_plugin_set_description(plugin, cur_attr->value.description); | |
397 | break; | |
398 | case BT_PLUGIN_DESCRIPTOR_ATTRIBUTE_TYPE_VERSION: | |
399 | bt_plugin_set_version(plugin, | |
400 | (unsigned int) cur_attr->value.version.major, | |
401 | (unsigned int) cur_attr->value.version.minor, | |
402 | (unsigned int) cur_attr->value.version.patch, | |
403 | cur_attr->value.version.extra); | |
404 | break; | |
405 | default: | |
50ad9320 PP |
406 | /* |
407 | * WARN-level logging because this should not | |
408 | * happen with the appropriate ABI version. If | |
409 | * we're here, we know that for the reported | |
410 | * version of the ABI, this attribute is | |
411 | * unknown. | |
412 | */ | |
3fe0bf43 PP |
413 | BT_LOGW("Ignoring unknown plugin descriptor attribute: " |
414 | "plugin-path=\"%s\", plugin-name=\"%s\", " | |
415 | "attr-type-name=\"%s\", attr-type-id=%d", | |
416 | spec->shared_lib_handle->path ? | |
417 | spec->shared_lib_handle->path->str : | |
418 | NULL, | |
419 | descriptor->name, cur_attr->type_name, | |
420 | cur_attr->type); | |
55bb57e0 PP |
421 | break; |
422 | } | |
423 | } | |
424 | ||
425 | /* | |
426 | * Find component class descriptors attached to this plugin | |
427 | * descriptor and initialize corresponding full component class | |
428 | * descriptors in the array. | |
429 | */ | |
430 | for (cur_cc_descr_ptr = cc_descriptors_begin; cur_cc_descr_ptr != cc_descriptors_end; cur_cc_descr_ptr++) { | |
431 | const struct __bt_plugin_component_class_descriptor *cur_cc_descr = | |
432 | *cur_cc_descr_ptr; | |
433 | struct comp_class_full_descriptor full_descriptor = {0}; | |
434 | ||
be3c4e36 MJ |
435 | if (cur_cc_descr == NULL) { |
436 | continue; | |
437 | } | |
438 | ||
55bb57e0 PP |
439 | if (cur_cc_descr->plugin_descriptor != descriptor) { |
440 | continue; | |
441 | } | |
442 | ||
443 | full_descriptor.descriptor = cur_cc_descr; | |
444 | g_array_append_val(comp_class_full_descriptors, | |
445 | full_descriptor); | |
446 | } | |
447 | ||
448 | /* | |
449 | * Find component class descriptor attributes attached to this | |
450 | * plugin descriptor and update corresponding full component | |
451 | * class descriptors in the array. | |
452 | */ | |
453 | for (cur_cc_descr_attr_ptr = cc_descr_attrs_begin; cur_cc_descr_attr_ptr != cc_descr_attrs_end; cur_cc_descr_attr_ptr++) { | |
454 | const struct __bt_plugin_component_class_descriptor_attribute *cur_cc_descr_attr = | |
455 | *cur_cc_descr_attr_ptr; | |
834e9996 | 456 | enum bt_component_class_type cc_type; |
55bb57e0 | 457 | |
be3c4e36 MJ |
458 | if (cur_cc_descr_attr == NULL) { |
459 | continue; | |
460 | } | |
461 | ||
55bb57e0 PP |
462 | if (cur_cc_descr_attr->comp_class_descriptor->plugin_descriptor != |
463 | descriptor) { | |
464 | continue; | |
465 | } | |
466 | ||
834e9996 PP |
467 | cc_type = cur_cc_descr_attr->comp_class_descriptor->type; |
468 | ||
55bb57e0 PP |
469 | /* Find the corresponding component class descriptor entry */ |
470 | for (i = 0; i < comp_class_full_descriptors->len; i++) { | |
471 | struct comp_class_full_descriptor *cc_full_descr = | |
472 | &g_array_index(comp_class_full_descriptors, | |
473 | struct comp_class_full_descriptor, i); | |
474 | ||
834e9996 | 475 | if (cur_cc_descr_attr->comp_class_descriptor != |
55bb57e0 | 476 | cc_full_descr->descriptor) { |
834e9996 PP |
477 | continue; |
478 | } | |
479 | ||
480 | switch (cur_cc_descr_attr->type) { | |
481 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_DESCRIPTION: | |
482 | cc_full_descr->description = | |
483 | cur_cc_descr_attr->value.description; | |
484 | break; | |
485 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_HELP: | |
486 | cc_full_descr->help = | |
487 | cur_cc_descr_attr->value.help; | |
488 | break; | |
489 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_INIT_METHOD: | |
490 | switch (cc_type) { | |
491 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
492 | cc_full_descr->methods.source.init = | |
493 | cur_cc_descr_attr->value.source_init_method; | |
55bb57e0 | 494 | break; |
834e9996 PP |
495 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
496 | cc_full_descr->methods.filter.init = | |
497 | cur_cc_descr_attr->value.filter_init_method; | |
279b3f15 | 498 | break; |
834e9996 PP |
499 | case BT_COMPONENT_CLASS_TYPE_SINK: |
500 | cc_full_descr->methods.sink.init = | |
501 | cur_cc_descr_attr->value.sink_init_method; | |
55bb57e0 | 502 | break; |
834e9996 PP |
503 | default: |
504 | abort(); | |
505 | } | |
506 | break; | |
507 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_FINALIZE_METHOD: | |
508 | switch (cc_type) { | |
509 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
510 | cc_full_descr->methods.source.finalize = | |
511 | cur_cc_descr_attr->value.source_finalize_method; | |
55bb57e0 | 512 | break; |
834e9996 PP |
513 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
514 | cc_full_descr->methods.filter.finalize = | |
515 | cur_cc_descr_attr->value.filter_finalize_method; | |
8463eac2 | 516 | break; |
834e9996 PP |
517 | case BT_COMPONENT_CLASS_TYPE_SINK: |
518 | cc_full_descr->methods.sink.finalize = | |
519 | cur_cc_descr_attr->value.sink_finalize_method; | |
72b913fb | 520 | break; |
834e9996 PP |
521 | default: |
522 | abort(); | |
523 | } | |
524 | break; | |
525 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_QUERY_METHOD: | |
526 | switch (cc_type) { | |
527 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
528 | cc_full_descr->methods.source.query = | |
529 | cur_cc_descr_attr->value.source_query_method; | |
0d8b4d8e | 530 | break; |
834e9996 PP |
531 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
532 | cc_full_descr->methods.filter.query = | |
533 | cur_cc_descr_attr->value.filter_query_method; | |
55bb57e0 | 534 | break; |
834e9996 PP |
535 | case BT_COMPONENT_CLASS_TYPE_SINK: |
536 | cc_full_descr->methods.sink.query = | |
537 | cur_cc_descr_attr->value.sink_query_method; | |
55bb57e0 | 538 | break; |
834e9996 PP |
539 | default: |
540 | abort(); | |
541 | } | |
542 | break; | |
543 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_ACCEPT_INPUT_PORT_CONNECTION_METHOD: | |
544 | switch (cc_type) { | |
545 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
546 | cc_full_descr->methods.filter.accept_input_port_connection = | |
547 | cur_cc_descr_attr->value.filter_accept_input_port_connection_method; | |
548 | break; | |
549 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
550 | cc_full_descr->methods.sink.accept_input_port_connection = | |
551 | cur_cc_descr_attr->value.sink_accept_input_port_connection_method; | |
552 | break; | |
553 | default: | |
554 | abort(); | |
555 | } | |
556 | break; | |
557 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_ACCEPT_OUTPUT_PORT_CONNECTION_METHOD: | |
558 | switch (cc_type) { | |
559 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
560 | cc_full_descr->methods.source.accept_output_port_connection = | |
561 | cur_cc_descr_attr->value.source_accept_output_port_connection_method; | |
562 | break; | |
563 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
564 | cc_full_descr->methods.filter.accept_output_port_connection = | |
565 | cur_cc_descr_attr->value.filter_accept_output_port_connection_method; | |
566 | break; | |
567 | default: | |
568 | abort(); | |
569 | } | |
570 | break; | |
571 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_INPUT_PORT_CONNECTED_METHOD: | |
572 | switch (cc_type) { | |
573 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
574 | cc_full_descr->methods.filter.input_port_connected = | |
575 | cur_cc_descr_attr->value.filter_input_port_connected_method; | |
576 | break; | |
577 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
578 | cc_full_descr->methods.sink.input_port_connected = | |
579 | cur_cc_descr_attr->value.sink_input_port_connected_method; | |
55bb57e0 | 580 | break; |
55bb57e0 | 581 | default: |
834e9996 PP |
582 | abort(); |
583 | } | |
584 | break; | |
585 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_OUTPUT_PORT_CONNECTED_METHOD: | |
586 | switch (cc_type) { | |
587 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
588 | cc_full_descr->methods.source.output_port_connected = | |
589 | cur_cc_descr_attr->value.source_output_port_connected_method; | |
590 | break; | |
591 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
592 | cc_full_descr->methods.filter.output_port_connected = | |
593 | cur_cc_descr_attr->value.filter_output_port_connected_method; | |
55bb57e0 | 594 | break; |
834e9996 PP |
595 | default: |
596 | abort(); | |
55bb57e0 | 597 | } |
834e9996 | 598 | break; |
b09a5592 | 599 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_MSG_ITER_INIT_METHOD: |
834e9996 PP |
600 | switch (cc_type) { |
601 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
b09a5592 PP |
602 | cc_full_descr->methods.source.msg_iter_init = |
603 | cur_cc_descr_attr->value.source_msg_iter_init_method; | |
834e9996 PP |
604 | break; |
605 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
b09a5592 PP |
606 | cc_full_descr->methods.filter.msg_iter_init = |
607 | cur_cc_descr_attr->value.filter_msg_iter_init_method; | |
834e9996 PP |
608 | break; |
609 | default: | |
610 | abort(); | |
611 | } | |
612 | break; | |
b09a5592 | 613 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_MSG_ITER_FINALIZE_METHOD: |
834e9996 PP |
614 | switch (cc_type) { |
615 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
b09a5592 PP |
616 | cc_full_descr->methods.source.msg_iter_finalize = |
617 | cur_cc_descr_attr->value.source_msg_iter_finalize_method; | |
834e9996 PP |
618 | break; |
619 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
b09a5592 PP |
620 | cc_full_descr->methods.filter.msg_iter_finalize = |
621 | cur_cc_descr_attr->value.filter_msg_iter_finalize_method; | |
834e9996 PP |
622 | break; |
623 | default: | |
624 | abort(); | |
625 | } | |
626 | break; | |
15a52f66 PP |
627 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_MSG_ITER_SEEK_NS_FROM_ORIGIN_METHOD: |
628 | switch (cc_type) { | |
629 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
630 | cc_full_descr->methods.source.msg_iter_seek_ns_from_origin = | |
631 | cur_cc_descr_attr->value.source_msg_iter_seek_ns_from_origin_method; | |
632 | break; | |
633 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
634 | cc_full_descr->methods.filter.msg_iter_seek_ns_from_origin = | |
635 | cur_cc_descr_attr->value.filter_msg_iter_seek_ns_from_origin_method; | |
636 | break; | |
637 | default: | |
638 | abort(); | |
639 | } | |
640 | break; | |
641 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_MSG_ITER_SEEK_BEGINNING_METHOD: | |
642 | switch (cc_type) { | |
643 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
644 | cc_full_descr->methods.source.msg_iter_seek_beginning = | |
645 | cur_cc_descr_attr->value.source_msg_iter_seek_beginning_method; | |
646 | break; | |
647 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
648 | cc_full_descr->methods.filter.msg_iter_seek_beginning = | |
649 | cur_cc_descr_attr->value.filter_msg_iter_seek_beginning_method; | |
650 | break; | |
651 | default: | |
652 | abort(); | |
653 | } | |
654 | break; | |
655 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_MSG_ITER_CAN_SEEK_NS_FROM_ORIGIN_METHOD: | |
656 | switch (cc_type) { | |
657 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
658 | cc_full_descr->methods.source.msg_iter_can_seek_ns_from_origin = | |
659 | cur_cc_descr_attr->value.source_msg_iter_can_seek_ns_from_origin_method; | |
660 | break; | |
661 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
662 | cc_full_descr->methods.filter.msg_iter_can_seek_ns_from_origin = | |
663 | cur_cc_descr_attr->value.filter_msg_iter_can_seek_ns_from_origin_method; | |
664 | break; | |
665 | default: | |
666 | abort(); | |
667 | } | |
668 | break; | |
669 | case BT_PLUGIN_COMPONENT_CLASS_DESCRIPTOR_ATTRIBUTE_TYPE_MSG_ITER_CAN_SEEK_BEGINNING_METHOD: | |
670 | switch (cc_type) { | |
671 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
672 | cc_full_descr->methods.source.msg_iter_can_seek_beginning = | |
673 | cur_cc_descr_attr->value.source_msg_iter_can_seek_beginning_method; | |
674 | break; | |
675 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
676 | cc_full_descr->methods.filter.msg_iter_can_seek_beginning = | |
677 | cur_cc_descr_attr->value.filter_msg_iter_can_seek_beginning_method; | |
678 | break; | |
679 | default: | |
680 | abort(); | |
681 | } | |
682 | break; | |
834e9996 PP |
683 | default: |
684 | /* | |
685 | * WARN-level logging because this | |
686 | * should not happen with the | |
687 | * appropriate ABI version. If we're | |
688 | * here, we know that for the reported | |
689 | * version of the ABI, this attribute is | |
690 | * unknown. | |
691 | */ | |
692 | BT_LOGW("Ignoring unknown component class descriptor attribute: " | |
693 | "plugin-path=\"%s\", " | |
694 | "plugin-name=\"%s\", " | |
695 | "comp-class-name=\"%s\", " | |
696 | "comp-class-type=%s, " | |
697 | "attr-type-name=\"%s\", " | |
698 | "attr-type-id=%d", | |
699 | spec->shared_lib_handle->path ? | |
700 | spec->shared_lib_handle->path->str : | |
701 | NULL, | |
702 | descriptor->name, | |
703 | cur_cc_descr_attr->comp_class_descriptor->name, | |
704 | bt_component_class_type_string( | |
705 | cur_cc_descr_attr->comp_class_descriptor->type), | |
706 | cur_cc_descr_attr->type_name, | |
707 | cur_cc_descr_attr->type); | |
708 | break; | |
55bb57e0 PP |
709 | } |
710 | } | |
711 | } | |
712 | ||
713 | /* Initialize plugin */ | |
714 | if (spec->init) { | |
c8750769 PP |
715 | enum bt_self_plugin_status init_status; |
716 | ||
3fe0bf43 | 717 | BT_LOGD_STR("Calling user's plugin initialization function."); |
c8750769 | 718 | init_status = spec->init((void *) plugin); |
3fe0bf43 | 719 | BT_LOGD("User function returned: %s", |
c8750769 | 720 | bt_self_plugin_status_string(init_status)); |
3fe0bf43 | 721 | |
0ae03127 | 722 | if (init_status < 0) { |
3fe0bf43 | 723 | BT_LOGW_STR("User's plugin initialization function failed."); |
0ae03127 | 724 | status = BT_PLUGIN_STATUS_ERROR; |
55bb57e0 PP |
725 | goto end; |
726 | } | |
727 | } | |
728 | ||
c55a9f58 | 729 | spec->shared_lib_handle->init_called = BT_TRUE; |
55bb57e0 PP |
730 | |
731 | /* Add described component classes to plugin */ | |
732 | for (i = 0; i < comp_class_full_descriptors->len; i++) { | |
733 | struct comp_class_full_descriptor *cc_full_descr = | |
734 | &g_array_index(comp_class_full_descriptors, | |
735 | struct comp_class_full_descriptor, i); | |
7b53201c PP |
736 | struct bt_component_class *comp_class = NULL; |
737 | struct bt_component_class_source *src_comp_class = NULL; | |
738 | struct bt_component_class_filter *flt_comp_class = NULL; | |
739 | struct bt_component_class_sink *sink_comp_class = NULL; | |
55bb57e0 | 740 | |
3fe0bf43 PP |
741 | BT_LOGD("Creating and setting properties of plugin's component class: " |
742 | "plugin-path=\"%s\", plugin-name=\"%s\", " | |
743 | "comp-class-name=\"%s\", comp-class-type=%s", | |
744 | spec->shared_lib_handle->path ? | |
745 | spec->shared_lib_handle->path->str : | |
746 | NULL, | |
747 | descriptor->name, | |
748 | cc_full_descr->descriptor->name, | |
749 | bt_component_class_type_string( | |
750 | cc_full_descr->descriptor->type)); | |
751 | ||
55bb57e0 PP |
752 | switch (cc_full_descr->descriptor->type) { |
753 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
7b53201c | 754 | src_comp_class = bt_component_class_source_create( |
55bb57e0 | 755 | cc_full_descr->descriptor->name, |
b09a5592 | 756 | cc_full_descr->descriptor->methods.source.msg_iter_next); |
7b53201c | 757 | comp_class = bt_component_class_source_as_component_class( |
834e9996 | 758 | src_comp_class); |
55bb57e0 PP |
759 | break; |
760 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
7b53201c | 761 | flt_comp_class = bt_component_class_filter_create( |
55bb57e0 | 762 | cc_full_descr->descriptor->name, |
b09a5592 | 763 | cc_full_descr->descriptor->methods.source.msg_iter_next); |
7b53201c | 764 | comp_class = bt_component_class_filter_as_component_class( |
834e9996 | 765 | flt_comp_class); |
55bb57e0 PP |
766 | break; |
767 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
7b53201c | 768 | sink_comp_class = bt_component_class_sink_create( |
55bb57e0 PP |
769 | cc_full_descr->descriptor->name, |
770 | cc_full_descr->descriptor->methods.sink.consume); | |
7b53201c | 771 | comp_class = bt_component_class_sink_as_component_class( |
834e9996 | 772 | sink_comp_class); |
55bb57e0 PP |
773 | break; |
774 | default: | |
50ad9320 PP |
775 | /* |
776 | * WARN-level logging because this should not | |
777 | * happen with the appropriate ABI version. If | |
778 | * we're here, we know that for the reported | |
779 | * version of the ABI, this component class type | |
780 | * is unknown. | |
781 | */ | |
3fe0bf43 PP |
782 | BT_LOGW("Ignoring unknown component class type: " |
783 | "plugin-path=\"%s\", plugin-name=\"%s\", " | |
784 | "comp-class-name=\"%s\", comp-class-type=%d", | |
785 | spec->shared_lib_handle->path->str ? | |
786 | spec->shared_lib_handle->path->str : | |
787 | NULL, | |
788 | descriptor->name, | |
55bb57e0 | 789 | cc_full_descr->descriptor->name, |
3fe0bf43 | 790 | cc_full_descr->descriptor->type); |
55bb57e0 PP |
791 | continue; |
792 | } | |
793 | ||
794 | if (!comp_class) { | |
3fe0bf43 | 795 | BT_LOGE_STR("Cannot create component class."); |
55bb57e0 PP |
796 | status = BT_PLUGIN_STATUS_ERROR; |
797 | goto end; | |
798 | } | |
799 | ||
800 | if (cc_full_descr->description) { | |
7b53201c | 801 | ret = bt_component_class_set_description( |
834e9996 | 802 | comp_class, cc_full_descr->description); |
55bb57e0 | 803 | if (ret) { |
3fe0bf43 | 804 | BT_LOGE_STR("Cannot set component class's description."); |
55bb57e0 | 805 | status = BT_PLUGIN_STATUS_ERROR; |
8138bfe1 | 806 | BT_OBJECT_PUT_REF_AND_RESET(comp_class); |
55bb57e0 PP |
807 | goto end; |
808 | } | |
809 | } | |
810 | ||
279b3f15 | 811 | if (cc_full_descr->help) { |
7b53201c | 812 | ret = bt_component_class_set_help(comp_class, |
279b3f15 PP |
813 | cc_full_descr->help); |
814 | if (ret) { | |
3fe0bf43 | 815 | BT_LOGE_STR("Cannot set component class's help string."); |
279b3f15 | 816 | status = BT_PLUGIN_STATUS_ERROR; |
8138bfe1 | 817 | BT_OBJECT_PUT_REF_AND_RESET(comp_class); |
279b3f15 PP |
818 | goto end; |
819 | } | |
820 | } | |
821 | ||
834e9996 PP |
822 | switch (cc_full_descr->descriptor->type) { |
823 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
824 | if (cc_full_descr->methods.source.init) { | |
7b53201c | 825 | ret = bt_component_class_source_set_init_method( |
834e9996 PP |
826 | src_comp_class, |
827 | cc_full_descr->methods.source.init); | |
828 | if (ret) { | |
829 | BT_LOGE_STR("Cannot set source component class's initialization method."); | |
830 | status = BT_PLUGIN_STATUS_ERROR; | |
831 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
832 | goto end; | |
833 | } | |
55bb57e0 | 834 | } |
55bb57e0 | 835 | |
834e9996 | 836 | if (cc_full_descr->methods.source.finalize) { |
7b53201c | 837 | ret = bt_component_class_source_set_finalize_method( |
834e9996 PP |
838 | src_comp_class, |
839 | cc_full_descr->methods.source.finalize); | |
840 | if (ret) { | |
841 | BT_LOGE_STR("Cannot set source component class's finalization method."); | |
842 | status = BT_PLUGIN_STATUS_ERROR; | |
843 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
844 | goto end; | |
845 | } | |
55bb57e0 | 846 | } |
55bb57e0 | 847 | |
834e9996 | 848 | if (cc_full_descr->methods.source.query) { |
7b53201c | 849 | ret = bt_component_class_source_set_query_method( |
834e9996 PP |
850 | src_comp_class, |
851 | cc_full_descr->methods.source.query); | |
852 | if (ret) { | |
853 | BT_LOGE_STR("Cannot set source component class's query method."); | |
854 | status = BT_PLUGIN_STATUS_ERROR; | |
855 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
856 | goto end; | |
857 | } | |
8463eac2 | 858 | } |
8463eac2 | 859 | |
834e9996 | 860 | if (cc_full_descr->methods.source.accept_output_port_connection) { |
7b53201c | 861 | ret = bt_component_class_source_set_accept_output_port_connection_method( |
834e9996 PP |
862 | src_comp_class, |
863 | cc_full_descr->methods.source.accept_output_port_connection); | |
864 | if (ret) { | |
865 | BT_LOGE_STR("Cannot set source component class's \"accept input output connection\" method."); | |
866 | status = BT_PLUGIN_STATUS_ERROR; | |
867 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
868 | goto end; | |
869 | } | |
72b913fb | 870 | } |
72b913fb | 871 | |
834e9996 | 872 | if (cc_full_descr->methods.source.output_port_connected) { |
7b53201c | 873 | ret = bt_component_class_source_set_output_port_connected_method( |
834e9996 PP |
874 | src_comp_class, |
875 | cc_full_descr->methods.source.output_port_connected); | |
876 | if (ret) { | |
877 | BT_LOGE_STR("Cannot set source component class's \"output port connected\" method."); | |
878 | status = BT_PLUGIN_STATUS_ERROR; | |
879 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
880 | goto end; | |
881 | } | |
0d8b4d8e | 882 | } |
0d8b4d8e | 883 | |
b09a5592 PP |
884 | if (cc_full_descr->methods.source.msg_iter_init) { |
885 | ret = bt_component_class_source_set_message_iterator_init_method( | |
834e9996 | 886 | src_comp_class, |
b09a5592 | 887 | cc_full_descr->methods.source.msg_iter_init); |
55bb57e0 | 888 | if (ret) { |
b09a5592 | 889 | BT_LOGE_STR("Cannot set source component class's message iterator initialization method."); |
55bb57e0 | 890 | status = BT_PLUGIN_STATUS_ERROR; |
834e9996 | 891 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); |
55bb57e0 PP |
892 | goto end; |
893 | } | |
894 | } | |
895 | ||
b09a5592 PP |
896 | if (cc_full_descr->methods.source.msg_iter_finalize) { |
897 | ret = bt_component_class_source_set_message_iterator_finalize_method( | |
834e9996 | 898 | src_comp_class, |
b09a5592 | 899 | cc_full_descr->methods.source.msg_iter_finalize); |
55bb57e0 | 900 | if (ret) { |
b09a5592 | 901 | BT_LOGE_STR("Cannot set source component class's message iterator finalization method."); |
55bb57e0 | 902 | status = BT_PLUGIN_STATUS_ERROR; |
834e9996 | 903 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); |
55bb57e0 PP |
904 | goto end; |
905 | } | |
906 | } | |
834e9996 | 907 | |
15a52f66 PP |
908 | if (cc_full_descr->methods.source.msg_iter_seek_ns_from_origin) { |
909 | ret = bt_component_class_source_set_message_iterator_seek_ns_from_origin_method( | |
910 | src_comp_class, | |
911 | cc_full_descr->methods.source.msg_iter_seek_ns_from_origin); | |
912 | if (ret) { | |
913 | BT_LOGE_STR("Cannot set source component class's message iterator \"seek nanoseconds from origin\" method."); | |
914 | status = BT_PLUGIN_STATUS_ERROR; | |
915 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
916 | goto end; | |
917 | } | |
918 | } | |
919 | ||
920 | if (cc_full_descr->methods.source.msg_iter_seek_beginning) { | |
921 | ret = bt_component_class_source_set_message_iterator_seek_beginning_method( | |
922 | src_comp_class, | |
923 | cc_full_descr->methods.source.msg_iter_seek_beginning); | |
924 | if (ret) { | |
925 | BT_LOGE_STR("Cannot set source component class's message iterator \"seek beginning\" method."); | |
926 | status = BT_PLUGIN_STATUS_ERROR; | |
927 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
928 | goto end; | |
929 | } | |
930 | } | |
931 | ||
932 | if (cc_full_descr->methods.source.msg_iter_can_seek_ns_from_origin) { | |
933 | ret = bt_component_class_source_set_message_iterator_can_seek_ns_from_origin_method( | |
934 | src_comp_class, | |
935 | cc_full_descr->methods.source.msg_iter_can_seek_ns_from_origin); | |
936 | if (ret) { | |
937 | BT_LOGE_STR("Cannot set source component class's message iterator \"can seek nanoseconds from origin\" method."); | |
938 | status = BT_PLUGIN_STATUS_ERROR; | |
939 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
940 | goto end; | |
941 | } | |
942 | } | |
943 | ||
944 | if (cc_full_descr->methods.source.msg_iter_can_seek_beginning) { | |
945 | ret = bt_component_class_source_set_message_iterator_can_seek_beginning_method( | |
946 | src_comp_class, | |
947 | cc_full_descr->methods.source.msg_iter_can_seek_beginning); | |
948 | if (ret) { | |
949 | BT_LOGE_STR("Cannot set source component class's message iterator \"can seek beginning\" method."); | |
950 | status = BT_PLUGIN_STATUS_ERROR; | |
951 | BT_OBJECT_PUT_REF_AND_RESET(src_comp_class); | |
952 | goto end; | |
953 | } | |
954 | } | |
955 | ||
55bb57e0 PP |
956 | break; |
957 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
834e9996 | 958 | if (cc_full_descr->methods.filter.init) { |
7b53201c | 959 | ret = bt_component_class_filter_set_init_method( |
834e9996 PP |
960 | flt_comp_class, |
961 | cc_full_descr->methods.filter.init); | |
962 | if (ret) { | |
963 | BT_LOGE_STR("Cannot set filter component class's initialization method."); | |
964 | status = BT_PLUGIN_STATUS_ERROR; | |
965 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
966 | goto end; | |
967 | } | |
968 | } | |
969 | ||
970 | if (cc_full_descr->methods.filter.finalize) { | |
7b53201c | 971 | ret = bt_component_class_filter_set_finalize_method( |
834e9996 PP |
972 | flt_comp_class, |
973 | cc_full_descr->methods.filter.finalize); | |
974 | if (ret) { | |
975 | BT_LOGE_STR("Cannot set filter component class's finalization method."); | |
976 | status = BT_PLUGIN_STATUS_ERROR; | |
977 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
978 | goto end; | |
979 | } | |
980 | } | |
981 | ||
982 | if (cc_full_descr->methods.filter.query) { | |
7b53201c | 983 | ret = bt_component_class_filter_set_query_method( |
834e9996 PP |
984 | flt_comp_class, |
985 | cc_full_descr->methods.filter.query); | |
986 | if (ret) { | |
987 | BT_LOGE_STR("Cannot set filter component class's query method."); | |
988 | status = BT_PLUGIN_STATUS_ERROR; | |
989 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
990 | goto end; | |
991 | } | |
992 | } | |
993 | ||
994 | if (cc_full_descr->methods.filter.accept_input_port_connection) { | |
7b53201c | 995 | ret = bt_component_class_filter_set_accept_input_port_connection_method( |
834e9996 PP |
996 | flt_comp_class, |
997 | cc_full_descr->methods.filter.accept_input_port_connection); | |
998 | if (ret) { | |
999 | BT_LOGE_STR("Cannot set filter component class's \"accept input port connection\" method."); | |
1000 | status = BT_PLUGIN_STATUS_ERROR; | |
1001 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
1002 | goto end; | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | if (cc_full_descr->methods.filter.accept_output_port_connection) { | |
7b53201c | 1007 | ret = bt_component_class_filter_set_accept_output_port_connection_method( |
834e9996 PP |
1008 | flt_comp_class, |
1009 | cc_full_descr->methods.filter.accept_output_port_connection); | |
1010 | if (ret) { | |
1011 | BT_LOGE_STR("Cannot set filter component class's \"accept input output connection\" method."); | |
1012 | status = BT_PLUGIN_STATUS_ERROR; | |
1013 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
1014 | goto end; | |
1015 | } | |
1016 | } | |
1017 | ||
1018 | if (cc_full_descr->methods.filter.input_port_connected) { | |
7b53201c | 1019 | ret = bt_component_class_filter_set_input_port_connected_method( |
834e9996 PP |
1020 | flt_comp_class, |
1021 | cc_full_descr->methods.filter.input_port_connected); | |
1022 | if (ret) { | |
1023 | BT_LOGE_STR("Cannot set filter component class's \"input port connected\" method."); | |
1024 | status = BT_PLUGIN_STATUS_ERROR; | |
1025 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
1026 | goto end; | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | if (cc_full_descr->methods.filter.output_port_connected) { | |
7b53201c | 1031 | ret = bt_component_class_filter_set_output_port_connected_method( |
834e9996 PP |
1032 | flt_comp_class, |
1033 | cc_full_descr->methods.filter.output_port_connected); | |
1034 | if (ret) { | |
1035 | BT_LOGE_STR("Cannot set filter component class's \"output port connected\" method."); | |
1036 | status = BT_PLUGIN_STATUS_ERROR; | |
1037 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
1038 | goto end; | |
1039 | } | |
1040 | } | |
1041 | ||
b09a5592 PP |
1042 | if (cc_full_descr->methods.filter.msg_iter_init) { |
1043 | ret = bt_component_class_filter_set_message_iterator_init_method( | |
834e9996 | 1044 | flt_comp_class, |
b09a5592 | 1045 | cc_full_descr->methods.filter.msg_iter_init); |
55bb57e0 | 1046 | if (ret) { |
b09a5592 | 1047 | BT_LOGE_STR("Cannot set filter component class's message iterator initialization method."); |
55bb57e0 | 1048 | status = BT_PLUGIN_STATUS_ERROR; |
834e9996 | 1049 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); |
55bb57e0 PP |
1050 | goto end; |
1051 | } | |
1052 | } | |
1053 | ||
b09a5592 PP |
1054 | if (cc_full_descr->methods.filter.msg_iter_finalize) { |
1055 | ret = bt_component_class_filter_set_message_iterator_finalize_method( | |
834e9996 | 1056 | flt_comp_class, |
b09a5592 | 1057 | cc_full_descr->methods.filter.msg_iter_finalize); |
55bb57e0 | 1058 | if (ret) { |
b09a5592 | 1059 | BT_LOGE_STR("Cannot set filter component class's message iterator finalization method."); |
55bb57e0 | 1060 | status = BT_PLUGIN_STATUS_ERROR; |
834e9996 | 1061 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); |
55bb57e0 PP |
1062 | goto end; |
1063 | } | |
1064 | } | |
834e9996 | 1065 | |
15a52f66 PP |
1066 | if (cc_full_descr->methods.filter.msg_iter_seek_ns_from_origin) { |
1067 | ret = bt_component_class_filter_set_message_iterator_seek_ns_from_origin_method( | |
1068 | flt_comp_class, | |
1069 | cc_full_descr->methods.filter.msg_iter_seek_ns_from_origin); | |
1070 | if (ret) { | |
1071 | BT_LOGE_STR("Cannot set filter component class's message iterator \"seek nanoseconds from origin\" method."); | |
1072 | status = BT_PLUGIN_STATUS_ERROR; | |
1073 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
1074 | goto end; | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | if (cc_full_descr->methods.filter.msg_iter_seek_beginning) { | |
1079 | ret = bt_component_class_filter_set_message_iterator_seek_beginning_method( | |
1080 | flt_comp_class, | |
1081 | cc_full_descr->methods.filter.msg_iter_seek_beginning); | |
1082 | if (ret) { | |
1083 | BT_LOGE_STR("Cannot set filter component class's message iterator \"seek beginning\" method."); | |
1084 | status = BT_PLUGIN_STATUS_ERROR; | |
1085 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
1086 | goto end; | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | if (cc_full_descr->methods.filter.msg_iter_can_seek_ns_from_origin) { | |
1091 | ret = bt_component_class_filter_set_message_iterator_can_seek_ns_from_origin_method( | |
1092 | flt_comp_class, | |
1093 | cc_full_descr->methods.filter.msg_iter_can_seek_ns_from_origin); | |
1094 | if (ret) { | |
1095 | BT_LOGE_STR("Cannot set filter component class's message iterator \"can seek nanoseconds from origin\" method."); | |
1096 | status = BT_PLUGIN_STATUS_ERROR; | |
1097 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
1098 | goto end; | |
1099 | } | |
1100 | } | |
1101 | ||
1102 | if (cc_full_descr->methods.filter.msg_iter_can_seek_beginning) { | |
1103 | ret = bt_component_class_filter_set_message_iterator_can_seek_beginning_method( | |
1104 | flt_comp_class, | |
1105 | cc_full_descr->methods.filter.msg_iter_can_seek_beginning); | |
1106 | if (ret) { | |
1107 | BT_LOGE_STR("Cannot set filter component class's message iterator \"can seek beginning\" method."); | |
1108 | status = BT_PLUGIN_STATUS_ERROR; | |
1109 | BT_OBJECT_PUT_REF_AND_RESET(flt_comp_class); | |
1110 | goto end; | |
1111 | } | |
1112 | } | |
1113 | ||
55bb57e0 PP |
1114 | break; |
1115 | case BT_COMPONENT_CLASS_TYPE_SINK: | |
834e9996 | 1116 | if (cc_full_descr->methods.sink.init) { |
7b53201c | 1117 | ret = bt_component_class_sink_set_init_method( |
834e9996 PP |
1118 | sink_comp_class, |
1119 | cc_full_descr->methods.sink.init); | |
1120 | if (ret) { | |
1121 | BT_LOGE_STR("Cannot set sink component class's initialization method."); | |
1122 | status = BT_PLUGIN_STATUS_ERROR; | |
1123 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1124 | goto end; | |
1125 | } | |
1126 | } | |
1127 | ||
1128 | if (cc_full_descr->methods.sink.finalize) { | |
7b53201c | 1129 | ret = bt_component_class_sink_set_finalize_method( |
834e9996 PP |
1130 | sink_comp_class, |
1131 | cc_full_descr->methods.sink.finalize); | |
1132 | if (ret) { | |
1133 | BT_LOGE_STR("Cannot set sink component class's finalization method."); | |
1134 | status = BT_PLUGIN_STATUS_ERROR; | |
1135 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1136 | goto end; | |
1137 | } | |
1138 | } | |
1139 | ||
1140 | if (cc_full_descr->methods.sink.query) { | |
7b53201c | 1141 | ret = bt_component_class_sink_set_query_method( |
834e9996 PP |
1142 | sink_comp_class, |
1143 | cc_full_descr->methods.sink.query); | |
1144 | if (ret) { | |
1145 | BT_LOGE_STR("Cannot set sink component class's query method."); | |
1146 | status = BT_PLUGIN_STATUS_ERROR; | |
1147 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1148 | goto end; | |
1149 | } | |
1150 | } | |
1151 | ||
1152 | if (cc_full_descr->methods.sink.accept_input_port_connection) { | |
7b53201c | 1153 | ret = bt_component_class_sink_set_accept_input_port_connection_method( |
834e9996 PP |
1154 | sink_comp_class, |
1155 | cc_full_descr->methods.sink.accept_input_port_connection); | |
1156 | if (ret) { | |
1157 | BT_LOGE_STR("Cannot set sink component class's \"accept input port connection\" method."); | |
1158 | status = BT_PLUGIN_STATUS_ERROR; | |
1159 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1160 | goto end; | |
1161 | } | |
1162 | } | |
1163 | ||
1164 | if (cc_full_descr->methods.sink.input_port_connected) { | |
7b53201c | 1165 | ret = bt_component_class_sink_set_input_port_connected_method( |
834e9996 PP |
1166 | sink_comp_class, |
1167 | cc_full_descr->methods.sink.input_port_connected); | |
1168 | if (ret) { | |
1169 | BT_LOGE_STR("Cannot set sink component class's \"input port connected\" method."); | |
1170 | status = BT_PLUGIN_STATUS_ERROR; | |
1171 | BT_OBJECT_PUT_REF_AND_RESET(sink_comp_class); | |
1172 | goto end; | |
1173 | } | |
1174 | } | |
1175 | ||
55bb57e0 PP |
1176 | break; |
1177 | default: | |
0fbb9a9f | 1178 | abort(); |
55bb57e0 PP |
1179 | } |
1180 | ||
1181 | /* | |
1182 | * Add component class to the plugin object. | |
1183 | * | |
1184 | * This will call back | |
1185 | * bt_plugin_so_on_add_component_class() so that we can | |
834e9996 PP |
1186 | * add a mapping in the component class list when we |
1187 | * know the component class is successfully added. | |
55bb57e0 PP |
1188 | */ |
1189 | status = bt_plugin_add_component_class(plugin, | |
834e9996 | 1190 | (void *) comp_class); |
8138bfe1 | 1191 | BT_OBJECT_PUT_REF_AND_RESET(comp_class); |
55bb57e0 | 1192 | if (status < 0) { |
3fe0bf43 | 1193 | BT_LOGE("Cannot add component class to plugin."); |
55bb57e0 PP |
1194 | goto end; |
1195 | } | |
1196 | } | |
1197 | ||
55bb57e0 PP |
1198 | end: |
1199 | g_array_free(comp_class_full_descriptors, TRUE); | |
1200 | return status; | |
1201 | } | |
1202 | ||
1203 | static | |
1204 | struct bt_plugin *bt_plugin_so_create_empty( | |
1205 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle) | |
1206 | { | |
1207 | struct bt_plugin *plugin; | |
1208 | struct bt_plugin_so_spec_data *spec; | |
1209 | ||
1210 | plugin = bt_plugin_create_empty(BT_PLUGIN_TYPE_SO); | |
1211 | if (!plugin) { | |
1212 | goto error; | |
1213 | } | |
1214 | ||
6fbd4105 | 1215 | plugin->destroy_spec_data = bt_plugin_so_destroy_spec_data; |
55bb57e0 PP |
1216 | plugin->spec_data = g_new0(struct bt_plugin_so_spec_data, 1); |
1217 | if (!plugin->spec_data) { | |
3fe0bf43 | 1218 | BT_LOGE_STR("Failed to allocate one SO plugin specific data structure."); |
55bb57e0 PP |
1219 | goto error; |
1220 | } | |
1221 | ||
1222 | spec = plugin->spec_data; | |
4b70020d PP |
1223 | spec->shared_lib_handle = shared_lib_handle; |
1224 | bt_object_get_no_null_check(spec->shared_lib_handle); | |
55bb57e0 PP |
1225 | goto end; |
1226 | ||
1227 | error: | |
8138bfe1 | 1228 | BT_OBJECT_PUT_REF_AND_RESET(plugin); |
55bb57e0 PP |
1229 | |
1230 | end: | |
1231 | return plugin; | |
1232 | } | |
1233 | ||
be3c4e36 MJ |
1234 | static |
1235 | size_t count_non_null_items_in_section(const void *begin, const void *end) | |
1236 | { | |
1237 | size_t count = 0; | |
1238 | const int * const *begin_int = (const int * const *) begin; | |
1239 | const int * const *end_int = (const int * const *) end; | |
1240 | const int * const *iter; | |
1241 | ||
1242 | for (iter = begin_int; iter != end_int; iter++) { | |
1243 | if (*iter) { | |
1244 | count++; | |
1245 | } | |
1246 | } | |
1247 | ||
1248 | return count; | |
1249 | } | |
1250 | ||
55bb57e0 | 1251 | static |
a8ff38ef | 1252 | struct bt_plugin_set *bt_plugin_so_create_all_from_sections( |
55bb57e0 PP |
1253 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle, |
1254 | struct __bt_plugin_descriptor const * const *descriptors_begin, | |
1255 | struct __bt_plugin_descriptor const * const *descriptors_end, | |
1256 | struct __bt_plugin_descriptor_attribute const * const *attrs_begin, | |
1257 | struct __bt_plugin_descriptor_attribute const * const *attrs_end, | |
1258 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_begin, | |
1259 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_end, | |
1260 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_begin, | |
1261 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_end) | |
1262 | { | |
1263 | size_t descriptor_count; | |
1264 | size_t attrs_count; | |
1265 | size_t cc_descriptors_count; | |
1266 | size_t cc_descr_attrs_count; | |
1267 | size_t i; | |
a8ff38ef | 1268 | struct bt_plugin_set *plugin_set = NULL; |
55bb57e0 | 1269 | |
be3c4e36 MJ |
1270 | descriptor_count = count_non_null_items_in_section(descriptors_begin, descriptors_end); |
1271 | attrs_count = count_non_null_items_in_section(attrs_begin, attrs_end); | |
1272 | cc_descriptors_count = count_non_null_items_in_section(cc_descriptors_begin, cc_descriptors_end); | |
1273 | cc_descr_attrs_count = count_non_null_items_in_section(cc_descr_attrs_begin, cc_descr_attrs_end); | |
3fe0bf43 PP |
1274 | |
1275 | BT_LOGD("Creating all SO plugins from sections: " | |
1276 | "plugin-path=\"%s\", " | |
1277 | "descr-begin-addr=%p, descr-end-addr=%p, " | |
1278 | "attrs-begin-addr=%p, attrs-end-addr=%p, " | |
1279 | "cc-descr-begin-addr=%p, cc-descr-end-addr=%p, " | |
1280 | "cc-descr-attrs-begin-addr=%p, cc-descr-attrs-end-addr=%p, " | |
1281 | "descr-count=%zu, attrs-count=%zu, " | |
1282 | "cc-descr-count=%zu, cc-descr-attrs-count=%zu", | |
1283 | shared_lib_handle->path ? shared_lib_handle->path->str : NULL, | |
1284 | descriptors_begin, descriptors_end, | |
1285 | attrs_begin, attrs_end, | |
1286 | cc_descriptors_begin, cc_descriptors_end, | |
1287 | cc_descr_attrs_begin, cc_descr_attrs_end, | |
1288 | descriptor_count, attrs_count, | |
1289 | cc_descriptors_count, cc_descr_attrs_count); | |
a8ff38ef PP |
1290 | plugin_set = bt_plugin_set_create(); |
1291 | if (!plugin_set) { | |
3fe0bf43 | 1292 | BT_LOGE_STR("Cannot create empty plugin set."); |
55bb57e0 PP |
1293 | goto error; |
1294 | } | |
1295 | ||
be3c4e36 | 1296 | for (i = 0; i < descriptors_end - descriptors_begin; i++) { |
55bb57e0 PP |
1297 | enum bt_plugin_status status; |
1298 | const struct __bt_plugin_descriptor *descriptor = | |
1299 | descriptors_begin[i]; | |
1300 | struct bt_plugin *plugin; | |
1301 | ||
be3c4e36 MJ |
1302 | if (descriptor == NULL) { |
1303 | continue; | |
1304 | } | |
1305 | ||
3fe0bf43 PP |
1306 | BT_LOGD("Creating plugin object for plugin: " |
1307 | "name=\"%s\", abi-major=%d, abi-minor=%d", | |
1308 | descriptor->name, descriptor->major, descriptor->minor); | |
55bb57e0 PP |
1309 | |
1310 | if (descriptor->major > __BT_PLUGIN_VERSION_MAJOR) { | |
50ad9320 PP |
1311 | /* |
1312 | * DEBUG-level logging because we're only | |
1313 | * _trying_ to open this file as a compatible | |
1314 | * Babeltrace plugin: if it's not, it's not an | |
1315 | * error. And because this can be tried during | |
781ae911 | 1316 | * bt_plugin_find_all_from_dir(), it's not |
50ad9320 PP |
1317 | * even a warning. |
1318 | */ | |
1319 | BT_LOGD("Unknown ABI major version: abi-major=%d", | |
55bb57e0 PP |
1320 | descriptor->major); |
1321 | goto error; | |
1322 | } | |
1323 | ||
1324 | plugin = bt_plugin_so_create_empty(shared_lib_handle); | |
1325 | if (!plugin) { | |
3fe0bf43 | 1326 | BT_LOGE_STR("Cannot create empty shared library handle."); |
55bb57e0 PP |
1327 | goto error; |
1328 | } | |
1329 | ||
1330 | if (shared_lib_handle && shared_lib_handle->path) { | |
1331 | bt_plugin_set_path(plugin, shared_lib_handle->path->str); | |
1332 | } | |
1333 | ||
1334 | status = bt_plugin_so_init(plugin, descriptor, attrs_begin, | |
1335 | attrs_end, cc_descriptors_begin, cc_descriptors_end, | |
1336 | cc_descr_attrs_begin, cc_descr_attrs_end); | |
1337 | if (status < 0) { | |
50ad9320 PP |
1338 | /* |
1339 | * DEBUG-level logging because we're only | |
1340 | * _trying_ to open this file as a compatible | |
1341 | * Babeltrace plugin: if it's not, it's not an | |
1342 | * error. And because this can be tried during | |
781ae911 | 1343 | * bt_plugin_find_all_from_dir(), it's not |
50ad9320 PP |
1344 | * even a warning. |
1345 | */ | |
1346 | BT_LOGD_STR("Cannot initialize SO plugin object from sections."); | |
8138bfe1 | 1347 | BT_OBJECT_PUT_REF_AND_RESET(plugin); |
55bb57e0 PP |
1348 | goto error; |
1349 | } | |
1350 | ||
a8ff38ef PP |
1351 | /* Add to plugin set */ |
1352 | bt_plugin_set_add_plugin(plugin_set, plugin); | |
8138bfe1 | 1353 | bt_object_put_ref(plugin); |
55bb57e0 PP |
1354 | } |
1355 | ||
1356 | goto end; | |
1357 | ||
1358 | error: | |
8138bfe1 | 1359 | BT_OBJECT_PUT_REF_AND_RESET(plugin_set); |
55bb57e0 PP |
1360 | |
1361 | end: | |
a8ff38ef | 1362 | return plugin_set; |
55bb57e0 PP |
1363 | } |
1364 | ||
1365 | BT_HIDDEN | |
a8ff38ef | 1366 | struct bt_plugin_set *bt_plugin_so_create_all_from_static(void) |
55bb57e0 | 1367 | { |
a8ff38ef | 1368 | struct bt_plugin_set *plugin_set = NULL; |
55bb57e0 PP |
1369 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle = |
1370 | bt_plugin_so_shared_lib_handle_create(NULL); | |
1371 | ||
1372 | if (!shared_lib_handle) { | |
1373 | goto end; | |
1374 | } | |
1375 | ||
3fe0bf43 | 1376 | BT_LOGD_STR("Creating all SO plugins from built-in plugins."); |
a8ff38ef | 1377 | plugin_set = bt_plugin_so_create_all_from_sections(shared_lib_handle, |
be3c4e36 MJ |
1378 | __bt_get_begin_section_plugin_descriptors(), |
1379 | __bt_get_end_section_plugin_descriptors(), | |
1380 | __bt_get_begin_section_plugin_descriptor_attributes(), | |
1381 | __bt_get_end_section_plugin_descriptor_attributes(), | |
1382 | __bt_get_begin_section_component_class_descriptors(), | |
1383 | __bt_get_end_section_component_class_descriptors(), | |
1384 | __bt_get_begin_section_component_class_descriptor_attributes(), | |
1385 | __bt_get_end_section_component_class_descriptor_attributes()); | |
55bb57e0 PP |
1386 | |
1387 | end: | |
8138bfe1 | 1388 | BT_OBJECT_PUT_REF_AND_RESET(shared_lib_handle); |
55bb57e0 | 1389 | |
a8ff38ef | 1390 | return plugin_set; |
55bb57e0 PP |
1391 | } |
1392 | ||
1393 | BT_HIDDEN | |
a8ff38ef | 1394 | struct bt_plugin_set *bt_plugin_so_create_all_from_file(const char *path) |
55bb57e0 PP |
1395 | { |
1396 | size_t path_len; | |
a8ff38ef | 1397 | struct bt_plugin_set *plugin_set = NULL; |
55bb57e0 PP |
1398 | struct __bt_plugin_descriptor const * const *descriptors_begin = NULL; |
1399 | struct __bt_plugin_descriptor const * const *descriptors_end = NULL; | |
1400 | struct __bt_plugin_descriptor_attribute const * const *attrs_begin = NULL; | |
1401 | struct __bt_plugin_descriptor_attribute const * const *attrs_end = NULL; | |
1402 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_begin = NULL; | |
1403 | struct __bt_plugin_component_class_descriptor const * const *cc_descriptors_end = NULL; | |
1404 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_begin = NULL; | |
1405 | struct __bt_plugin_component_class_descriptor_attribute const * const *cc_descr_attrs_end = NULL; | |
be3c4e36 MJ |
1406 | struct __bt_plugin_descriptor const * const *(*get_begin_section_plugin_descriptors)(void); |
1407 | struct __bt_plugin_descriptor const * const *(*get_end_section_plugin_descriptors)(void); | |
1408 | struct __bt_plugin_descriptor_attribute const * const *(*get_begin_section_plugin_descriptor_attributes)(void); | |
1409 | struct __bt_plugin_descriptor_attribute const * const *(*get_end_section_plugin_descriptor_attributes)(void); | |
1410 | struct __bt_plugin_component_class_descriptor const * const *(*get_begin_section_component_class_descriptors)(void); | |
1411 | struct __bt_plugin_component_class_descriptor const * const *(*get_end_section_component_class_descriptors)(void); | |
1412 | struct __bt_plugin_component_class_descriptor_attribute const * const *(*get_begin_section_component_class_descriptor_attributes)(void); | |
1413 | struct __bt_plugin_component_class_descriptor_attribute const * const *(*get_end_section_component_class_descriptor_attributes)(void); | |
c55a9f58 | 1414 | bt_bool is_libtool_wrapper = BT_FALSE, is_shared_object = BT_FALSE; |
55bb57e0 PP |
1415 | struct bt_plugin_so_shared_lib_handle *shared_lib_handle = NULL; |
1416 | ||
1417 | if (!path) { | |
3fe0bf43 | 1418 | BT_LOGW_STR("Invalid parameter: path is NULL."); |
55bb57e0 PP |
1419 | goto end; |
1420 | } | |
1421 | ||
3fe0bf43 | 1422 | BT_LOGD("Creating all SO plugins from file: path=\"%s\"", path); |
55bb57e0 PP |
1423 | path_len = strlen(path); |
1424 | if (path_len <= PLUGIN_SUFFIX_LEN) { | |
3fe0bf43 PP |
1425 | BT_LOGW("Invalid parameter: path length is too short: " |
1426 | "path-length=%zu", path_len); | |
55bb57e0 PP |
1427 | goto end; |
1428 | } | |
1429 | ||
1430 | path_len++; | |
1431 | /* | |
1432 | * Check if the file ends with a known plugin file type suffix (i.e. .so | |
1433 | * or .la on Linux). | |
1434 | */ | |
1435 | is_libtool_wrapper = !strncmp(LIBTOOL_PLUGIN_SUFFIX, | |
1436 | path + path_len - LIBTOOL_PLUGIN_SUFFIX_LEN, | |
1437 | LIBTOOL_PLUGIN_SUFFIX_LEN); | |
1438 | is_shared_object = !strncmp(NATIVE_PLUGIN_SUFFIX, | |
1439 | path + path_len - NATIVE_PLUGIN_SUFFIX_LEN, | |
1440 | NATIVE_PLUGIN_SUFFIX_LEN); | |
1441 | if (!is_shared_object && !is_libtool_wrapper) { | |
3fe0bf43 PP |
1442 | /* Name indicates this is not a plugin file; not an error */ |
1443 | BT_LOGV("File is not a SO plugin file: path=\"%s\"", path); | |
55bb57e0 PP |
1444 | goto end; |
1445 | } | |
1446 | ||
1447 | shared_lib_handle = bt_plugin_so_shared_lib_handle_create(path); | |
1448 | if (!shared_lib_handle) { | |
50ad9320 | 1449 | BT_LOGD_STR("Cannot create shared library handle."); |
55bb57e0 PP |
1450 | goto end; |
1451 | } | |
1452 | ||
be3c4e36 MJ |
1453 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_plugin_descriptors", |
1454 | (gpointer *) &get_begin_section_plugin_descriptors)) { | |
1455 | descriptors_begin = get_begin_section_plugin_descriptors(); | |
1456 | } else { | |
3fe0bf43 PP |
1457 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1458 | "symbol=\"%s\"", path, | |
be3c4e36 | 1459 | "__bt_get_begin_section_plugin_descriptors"); |
55bb57e0 PP |
1460 | goto end; |
1461 | } | |
1462 | ||
be3c4e36 MJ |
1463 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_plugin_descriptors", |
1464 | (gpointer *) &get_end_section_plugin_descriptors)) { | |
1465 | descriptors_end = get_end_section_plugin_descriptors(); | |
1466 | } else { | |
3fe0bf43 PP |
1467 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1468 | "symbol=\"%s\"", path, | |
be3c4e36 | 1469 | "__bt_get_end_section_plugin_descriptors"); |
55bb57e0 PP |
1470 | goto end; |
1471 | } | |
1472 | ||
be3c4e36 MJ |
1473 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_plugin_descriptor_attributes", |
1474 | (gpointer *) &get_begin_section_plugin_descriptor_attributes)) { | |
1475 | attrs_begin = get_begin_section_plugin_descriptor_attributes(); | |
1476 | } else { | |
3fe0bf43 PP |
1477 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1478 | "symbol=\"%s\"", path, | |
be3c4e36 | 1479 | "__bt_get_begin_section_plugin_descriptor_attributes"); |
55bb57e0 PP |
1480 | } |
1481 | ||
be3c4e36 MJ |
1482 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_plugin_descriptor_attributes", |
1483 | (gpointer *) &get_end_section_plugin_descriptor_attributes)) { | |
1484 | attrs_end = get_end_section_plugin_descriptor_attributes(); | |
1485 | } else { | |
3fe0bf43 PP |
1486 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1487 | "symbol=\"%s\"", path, | |
be3c4e36 | 1488 | "__bt_get_end_section_plugin_descriptor_attributes"); |
55bb57e0 PP |
1489 | } |
1490 | ||
1491 | if ((!!attrs_begin - !!attrs_end) != 0) { | |
3fe0bf43 PP |
1492 | BT_LOGD("Found section start or end symbol, but not both: " |
1493 | "path=\"%s\", symbol-start=\"%s\", " | |
1494 | "symbol-end=\"%s\", symbol-start-addr=%p, " | |
1495 | "symbol-end-addr=%p", | |
be3c4e36 MJ |
1496 | path, "__bt_get_begin_section_plugin_descriptor_attributes", |
1497 | "__bt_get_end_section_plugin_descriptor_attributes", | |
3fe0bf43 | 1498 | attrs_begin, attrs_end); |
55bb57e0 PP |
1499 | goto end; |
1500 | } | |
1501 | ||
be3c4e36 MJ |
1502 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_component_class_descriptors", |
1503 | (gpointer *) &get_begin_section_component_class_descriptors)) { | |
1504 | cc_descriptors_begin = get_begin_section_component_class_descriptors(); | |
1505 | } else { | |
3fe0bf43 PP |
1506 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1507 | "symbol=\"%s\"", path, | |
be3c4e36 | 1508 | "__bt_get_begin_section_component_class_descriptors"); |
55bb57e0 PP |
1509 | } |
1510 | ||
be3c4e36 MJ |
1511 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_component_class_descriptors", |
1512 | (gpointer *) &get_end_section_component_class_descriptors)) { | |
1513 | cc_descriptors_end = get_end_section_component_class_descriptors(); | |
1514 | } else { | |
3fe0bf43 PP |
1515 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1516 | "symbol=\"%s\"", path, | |
be3c4e36 | 1517 | "__bt_get_end_section_component_class_descriptors"); |
55bb57e0 PP |
1518 | } |
1519 | ||
1520 | if ((!!cc_descriptors_begin - !!cc_descriptors_end) != 0) { | |
3fe0bf43 PP |
1521 | BT_LOGD("Found section start or end symbol, but not both: " |
1522 | "path=\"%s\", symbol-start=\"%s\", " | |
1523 | "symbol-end=\"%s\", symbol-start-addr=%p, " | |
1524 | "symbol-end-addr=%p", | |
be3c4e36 MJ |
1525 | path, "__bt_get_begin_section_component_class_descriptors", |
1526 | "__bt_get_end_section_component_class_descriptors", | |
3fe0bf43 | 1527 | cc_descriptors_begin, cc_descriptors_end); |
55bb57e0 PP |
1528 | goto end; |
1529 | } | |
1530 | ||
be3c4e36 MJ |
1531 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_begin_section_component_class_descriptor_attributes", |
1532 | (gpointer *) &get_begin_section_component_class_descriptor_attributes)) { | |
1533 | cc_descr_attrs_begin = get_begin_section_component_class_descriptor_attributes(); | |
1534 | } else { | |
3fe0bf43 PP |
1535 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1536 | "symbol=\"%s\"", path, | |
be3c4e36 | 1537 | "__bt_get_begin_section_component_class_descriptor_attributes"); |
55bb57e0 PP |
1538 | } |
1539 | ||
be3c4e36 MJ |
1540 | if (g_module_symbol(shared_lib_handle->module, "__bt_get_end_section_component_class_descriptor_attributes", |
1541 | (gpointer *) &get_end_section_component_class_descriptor_attributes)) { | |
1542 | cc_descr_attrs_end = get_end_section_component_class_descriptor_attributes(); | |
1543 | } else { | |
3fe0bf43 PP |
1544 | BT_LOGD("Cannot resolve plugin symbol: path=\"%s\", " |
1545 | "symbol=\"%s\"", path, | |
be3c4e36 | 1546 | "__bt_get_end_section_component_class_descriptor_attributes"); |
55bb57e0 PP |
1547 | } |
1548 | ||
1549 | if ((!!cc_descr_attrs_begin - !!cc_descr_attrs_end) != 0) { | |
3fe0bf43 PP |
1550 | BT_LOGD("Found section start or end symbol, but not both: " |
1551 | "path=\"%s\", symbol-start=\"%s\", " | |
1552 | "symbol-end=\"%s\", symbol-start-addr=%p, " | |
1553 | "symbol-end-addr=%p", | |
be3c4e36 MJ |
1554 | path, "__bt_get_begin_section_component_class_descriptor_attributes", |
1555 | "__bt_get_end_section_component_class_descriptor_attributes", | |
3fe0bf43 | 1556 | cc_descr_attrs_begin, cc_descr_attrs_end); |
55bb57e0 PP |
1557 | goto end; |
1558 | } | |
1559 | ||
1560 | /* Initialize plugin */ | |
3fe0bf43 | 1561 | BT_LOGD_STR("Initializing plugin object."); |
a8ff38ef | 1562 | plugin_set = bt_plugin_so_create_all_from_sections(shared_lib_handle, |
55bb57e0 PP |
1563 | descriptors_begin, descriptors_end, attrs_begin, attrs_end, |
1564 | cc_descriptors_begin, cc_descriptors_end, | |
1565 | cc_descr_attrs_begin, cc_descr_attrs_end); | |
1566 | ||
1567 | end: | |
8138bfe1 | 1568 | BT_OBJECT_PUT_REF_AND_RESET(shared_lib_handle); |
a8ff38ef | 1569 | return plugin_set; |
55bb57e0 PP |
1570 | } |
1571 | ||
1572 | static | |
1573 | void plugin_comp_class_destroy_listener(struct bt_component_class *comp_class, | |
1574 | void *data) | |
1575 | { | |
bfa9a4be | 1576 | bt_list_del(&comp_class->node); |
8138bfe1 | 1577 | BT_OBJECT_PUT_REF_AND_RESET(comp_class->so_handle); |
bfa9a4be | 1578 | BT_LOGV("Component class destroyed: removed entry from list: " |
3fe0bf43 | 1579 | "comp-cls-addr=%p", comp_class); |
55bb57e0 PP |
1580 | } |
1581 | ||
1582 | BT_HIDDEN | |
3230ee6b | 1583 | void bt_plugin_so_on_add_component_class(struct bt_plugin *plugin, |
55bb57e0 PP |
1584 | struct bt_component_class *comp_class) |
1585 | { | |
55bb57e0 PP |
1586 | struct bt_plugin_so_spec_data *spec = plugin->spec_data; |
1587 | ||
8b45963b PP |
1588 | BT_ASSERT(plugin->spec_data); |
1589 | BT_ASSERT(plugin->type == BT_PLUGIN_TYPE_SO); | |
55bb57e0 | 1590 | |
bfa9a4be | 1591 | bt_list_add(&comp_class->node, &component_class_list); |
4b70020d PP |
1592 | comp_class->so_handle = spec->shared_lib_handle; |
1593 | bt_object_get_no_null_check(comp_class->so_handle); | |
55bb57e0 PP |
1594 | |
1595 | /* Add our custom destroy listener */ | |
3230ee6b | 1596 | bt_component_class_add_destroy_listener(comp_class, |
55bb57e0 | 1597 | plugin_comp_class_destroy_listener, NULL); |
55bb57e0 | 1598 | } |