Commit | Line | Data |
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33b34c43 | 1 | /* |
33b34c43 PP |
2 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
3 | * Copyright 2017 Philippe Proulx <pproulx@efficios.com> | |
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 | ||
8c1a3187 PP |
26 | #define BT_LOG_TAG "PLUGIN" |
27 | #include <babeltrace/lib-logging-internal.h> | |
28 | ||
6fbd4105 | 29 | #include <babeltrace/babeltrace-internal.h> |
3d9990ac | 30 | #include <babeltrace/compiler-internal.h> |
8138bfe1 | 31 | #include <babeltrace/object.h> |
1670bffd | 32 | #include <babeltrace/common-internal.h> |
33b34c43 | 33 | #include <babeltrace/plugin/plugin-internal.h> |
55bb57e0 | 34 | #include <babeltrace/plugin/plugin-so-internal.h> |
8c1a3187 PP |
35 | #include <babeltrace/graph/component-class.h> |
36 | #include <babeltrace/graph/component-class-internal.h> | |
c55a9f58 | 37 | #include <babeltrace/types.h> |
8b45963b | 38 | #include <babeltrace/assert-internal.h> |
834e9996 | 39 | #include <babeltrace/assert-pre-internal.h> |
33b34c43 | 40 | #include <glib.h> |
33b34c43 PP |
41 | #include <unistd.h> |
42 | #include <stdlib.h> | |
9ac68eb1 | 43 | #include <stdint.h> |
8c1a3187 | 44 | #include <inttypes.h> |
33b34c43 | 45 | #include <sys/stat.h> |
1307d39e MJ |
46 | #include <ftw.h> |
47 | #include <pthread.h> | |
33b34c43 | 48 | |
6fbd4105 PP |
49 | #define PYTHON_PLUGIN_PROVIDER_FILENAME "libbabeltrace-python-plugin-provider." G_MODULE_SUFFIX |
50 | #define PYTHON_PLUGIN_PROVIDER_SYM_NAME bt_plugin_python_create_all_from_file | |
51 | #define PYTHON_PLUGIN_PROVIDER_SYM_NAME_STR TOSTRING(PYTHON_PLUGIN_PROVIDER_SYM_NAME) | |
33b34c43 | 52 | |
1307d39e MJ |
53 | #define APPEND_ALL_FROM_DIR_NFDOPEN_MAX 8 |
54 | ||
6fbd4105 PP |
55 | #ifdef BT_BUILT_IN_PYTHON_PLUGIN_SUPPORT |
56 | #include <babeltrace/plugin/python-plugin-provider-internal.h> | |
1307d39e | 57 | |
33b34c43 | 58 | static |
a8ff38ef | 59 | struct bt_plugin_set *(*bt_plugin_python_create_all_from_file_sym)(const char *path) = |
6fbd4105 | 60 | bt_plugin_python_create_all_from_file; |
336ea5cd MJ |
61 | |
62 | static | |
63 | void init_python_plugin_provider(void) {} | |
6fbd4105 PP |
64 | #else /* BT_BUILT_IN_PYTHON_PLUGIN_SUPPORT */ |
65 | static GModule *python_plugin_provider_module; | |
66 | static | |
a8ff38ef | 67 | struct bt_plugin_set *(*bt_plugin_python_create_all_from_file_sym)(const char *path); |
33b34c43 | 68 | |
336ea5cd | 69 | static |
6fbd4105 | 70 | void init_python_plugin_provider(void) { |
336ea5cd MJ |
71 | if (bt_plugin_python_create_all_from_file_sym != NULL) { |
72 | return; | |
73 | } | |
74 | ||
8c1a3187 | 75 | BT_LOGD_STR("Loading Python plugin provider module."); |
6fbd4105 | 76 | python_plugin_provider_module = |
b4fa1b59 | 77 | g_module_open(PYTHON_PLUGIN_PROVIDER_FILENAME, 0); |
6fbd4105 | 78 | if (!python_plugin_provider_module) { |
20e3b31e PP |
79 | BT_LOGI("Cannot open `%s`: %s: continuing without Python plugin support.", |
80 | PYTHON_PLUGIN_PROVIDER_FILENAME, g_module_error()); | |
6fbd4105 | 81 | return; |
33b34c43 PP |
82 | } |
83 | ||
6fbd4105 PP |
84 | if (!g_module_symbol(python_plugin_provider_module, |
85 | PYTHON_PLUGIN_PROVIDER_SYM_NAME_STR, | |
86 | (gpointer) &bt_plugin_python_create_all_from_file_sym)) { | |
8c1a3187 PP |
87 | BT_LOGI("Cannot find the Python plugin provider loading symbol: continuing without Python plugin support: " |
88 | "file=\"%s\", symbol=\"%s\"", | |
89 | PYTHON_PLUGIN_PROVIDER_FILENAME, | |
90 | PYTHON_PLUGIN_PROVIDER_SYM_NAME_STR); | |
91 | return; | |
33b34c43 | 92 | } |
8c1a3187 | 93 | |
9e0bf9b0 | 94 | BT_LOGI("Loaded Python plugin provider module: addr=%p", |
8c1a3187 | 95 | python_plugin_provider_module); |
33b34c43 PP |
96 | } |
97 | ||
6fbd4105 PP |
98 | __attribute__((destructor)) static |
99 | void fini_python_plugin_provider(void) { | |
100 | if (python_plugin_provider_module) { | |
8c1a3187 PP |
101 | BT_LOGD("Unloading Python plugin provider module."); |
102 | ||
103 | if (!g_module_close(python_plugin_provider_module)) { | |
104 | BT_LOGE("Failed to close the Python plugin provider module: %s.", | |
105 | g_module_error()); | |
106 | } | |
107 | ||
6fbd4105 | 108 | python_plugin_provider_module = NULL; |
6ba0b073 | 109 | } |
6ba0b073 | 110 | } |
6fbd4105 | 111 | #endif |
6ba0b073 | 112 | |
834e9996 | 113 | uint64_t bt_plugin_set_get_plugin_count(struct bt_plugin_set *plugin_set) |
a8ff38ef | 114 | { |
834e9996 PP |
115 | BT_ASSERT_PRE_NON_NULL(plugin_set, "Plugin set"); |
116 | return (uint64_t) plugin_set->plugins->len; | |
a8ff38ef PP |
117 | } |
118 | ||
834e9996 PP |
119 | struct bt_plugin *bt_plugin_set_borrow_plugin_by_index( |
120 | struct bt_plugin_set *plugin_set, | |
9ac68eb1 | 121 | uint64_t index) |
a8ff38ef | 122 | { |
834e9996 PP |
123 | BT_ASSERT_PRE_NON_NULL(plugin_set, "Plugin set"); |
124 | BT_ASSERT_PRE_VALID_INDEX(index, plugin_set->plugins->len); | |
125 | return g_ptr_array_index(plugin_set->plugins, index); | |
a8ff38ef PP |
126 | } |
127 | ||
128 | struct bt_plugin_set *bt_plugin_create_all_from_static(void) | |
6ba0b073 | 129 | { |
8c1a3187 | 130 | /* bt_plugin_so_create_all_from_static() logs errors */ |
55bb57e0 | 131 | return bt_plugin_so_create_all_from_static(); |
6ba0b073 PP |
132 | } |
133 | ||
a8ff38ef | 134 | struct bt_plugin_set *bt_plugin_create_all_from_file(const char *path) |
33b34c43 | 135 | { |
a8ff38ef | 136 | struct bt_plugin_set *plugin_set = NULL; |
33b34c43 | 137 | |
834e9996 | 138 | BT_ASSERT_PRE_NON_NULL(path, "Path"); |
8c1a3187 | 139 | BT_LOGD("Creating plugins from file: path=\"%s\"", path); |
6ba0b073 | 140 | |
55bb57e0 | 141 | /* Try shared object plugins */ |
a8ff38ef PP |
142 | plugin_set = bt_plugin_so_create_all_from_file(path); |
143 | if (plugin_set) { | |
6ba0b073 PP |
144 | goto end; |
145 | } | |
146 | ||
6fbd4105 | 147 | /* Try Python plugins if support is available */ |
336ea5cd | 148 | init_python_plugin_provider(); |
6fbd4105 | 149 | if (bt_plugin_python_create_all_from_file_sym) { |
a8ff38ef PP |
150 | plugin_set = bt_plugin_python_create_all_from_file_sym(path); |
151 | if (plugin_set) { | |
6fbd4105 PP |
152 | goto end; |
153 | } | |
6ba0b073 PP |
154 | } |
155 | ||
33b34c43 | 156 | end: |
8c1a3187 PP |
157 | if (plugin_set) { |
158 | BT_LOGD("Created %u plugins from file: " | |
159 | "path=\"%s\", count=%u, plugin-set-addr=%p", | |
160 | plugin_set->plugins->len, path, | |
161 | plugin_set->plugins->len, plugin_set); | |
162 | } else { | |
163 | BT_LOGD("Found no plugins in file: path=\"%s\"", path); | |
164 | } | |
165 | ||
a8ff38ef | 166 | return plugin_set; |
33b34c43 PP |
167 | } |
168 | ||
1670bffd PP |
169 | static void destroy_gstring(void *data) |
170 | { | |
171 | g_string_free(data, TRUE); | |
172 | } | |
173 | ||
2b43acf9 | 174 | struct bt_plugin *bt_plugin_find(const char *plugin_name) |
1670bffd PP |
175 | { |
176 | const char *system_plugin_dir; | |
177 | char *home_plugin_dir = NULL; | |
178 | const char *envvar; | |
179 | struct bt_plugin *plugin = NULL; | |
a8ff38ef | 180 | struct bt_plugin_set *plugin_set = NULL; |
1670bffd PP |
181 | GPtrArray *dirs = NULL; |
182 | int ret; | |
a8ff38ef | 183 | size_t i, j; |
1670bffd | 184 | |
834e9996 | 185 | BT_ASSERT_PRE_NON_NULL(plugin_name, "Name"); |
8c1a3187 PP |
186 | BT_LOGD("Finding named plugin in standard directories and built-in plugins: " |
187 | "name=\"%s\"", plugin_name); | |
1670bffd PP |
188 | dirs = g_ptr_array_new_with_free_func((GDestroyNotify) destroy_gstring); |
189 | if (!dirs) { | |
8c1a3187 | 190 | BT_LOGE_STR("Failed to allocate a GPtrArray."); |
1670bffd PP |
191 | goto end; |
192 | } | |
193 | ||
194 | /* | |
195 | * Search order is: | |
196 | * | |
197 | * 1. BABELTRACE_PLUGIN_PATH environment variable | |
198 | * (colon-separated list of directories) | |
199 | * 2. ~/.local/lib/babeltrace/plugins | |
200 | * 3. Default system directory for Babeltrace plugins, usually | |
201 | * /usr/lib/babeltrace/plugins or | |
202 | * /usr/local/lib/babeltrace/plugins if installed | |
203 | * locally | |
204 | * 4. Built-in plugins (static) | |
205 | * | |
206 | * Directories are searched non-recursively. | |
207 | */ | |
208 | envvar = getenv("BABELTRACE_PLUGIN_PATH"); | |
209 | if (envvar) { | |
210 | ret = bt_common_append_plugin_path_dirs(envvar, dirs); | |
211 | if (ret) { | |
8c1a3187 | 212 | BT_LOGE_STR("Failed to append plugin path to array of directories."); |
1670bffd PP |
213 | goto end; |
214 | } | |
215 | } | |
216 | ||
217 | home_plugin_dir = bt_common_get_home_plugin_path(); | |
218 | if (home_plugin_dir) { | |
219 | GString *home_plugin_dir_str = | |
220 | g_string_new(home_plugin_dir); | |
221 | ||
222 | if (!home_plugin_dir_str) { | |
8c1a3187 | 223 | BT_LOGE_STR("Failed to allocate a GString."); |
1670bffd PP |
224 | goto end; |
225 | } | |
226 | ||
227 | g_ptr_array_add(dirs, home_plugin_dir_str); | |
228 | } | |
229 | ||
230 | system_plugin_dir = bt_common_get_system_plugin_path(); | |
231 | if (system_plugin_dir) { | |
232 | GString *system_plugin_dir_str = | |
233 | g_string_new(system_plugin_dir); | |
234 | ||
235 | if (!system_plugin_dir_str) { | |
8c1a3187 | 236 | BT_LOGE_STR("Failed to allocate a GString."); |
1670bffd PP |
237 | goto end; |
238 | } | |
239 | ||
240 | g_ptr_array_add(dirs, system_plugin_dir_str); | |
241 | } | |
242 | ||
243 | for (i = 0; i < dirs->len; i++) { | |
244 | GString *dir = g_ptr_array_index(dirs, i); | |
245 | ||
8138bfe1 | 246 | BT_OBJECT_PUT_REF_AND_RESET(plugin_set); |
8c1a3187 | 247 | |
50ad9320 PP |
248 | /* |
249 | * Skip this if the directory does not exist because | |
250 | * bt_plugin_create_all_from_dir() would log a warning. | |
251 | */ | |
252 | if (!g_file_test(dir->str, G_FILE_TEST_IS_DIR)) { | |
253 | BT_LOGV("Skipping nonexistent directory path: " | |
254 | "path=\"%s\"", dir->str); | |
255 | continue; | |
256 | } | |
257 | ||
8c1a3187 | 258 | /* bt_plugin_create_all_from_dir() logs details/errors */ |
c55a9f58 | 259 | plugin_set = bt_plugin_create_all_from_dir(dir->str, BT_FALSE); |
a8ff38ef | 260 | if (!plugin_set) { |
8c1a3187 PP |
261 | BT_LOGD("No plugins found in directory: path=\"%s\"", |
262 | dir->str); | |
1670bffd PP |
263 | continue; |
264 | } | |
265 | ||
a8ff38ef PP |
266 | for (j = 0; j < plugin_set->plugins->len; j++) { |
267 | struct bt_plugin *candidate_plugin = | |
268 | g_ptr_array_index(plugin_set->plugins, j); | |
1670bffd | 269 | |
a8ff38ef PP |
270 | if (strcmp(bt_plugin_get_name(candidate_plugin), |
271 | plugin_name) == 0) { | |
8c1a3187 PP |
272 | BT_LOGD("Plugin found in directory: name=\"%s\", path=\"%s\"", |
273 | plugin_name, dir->str); | |
4b70020d PP |
274 | plugin = candidate_plugin; |
275 | bt_object_get_no_null_check(plugin); | |
1670bffd PP |
276 | goto end; |
277 | } | |
1670bffd | 278 | } |
8c1a3187 PP |
279 | |
280 | BT_LOGD("Plugin not found in directory: name=\"%s\", path=\"%s\"", | |
281 | plugin_name, dir->str); | |
1670bffd PP |
282 | } |
283 | ||
8138bfe1 | 284 | bt_object_put_ref(plugin_set); |
a8ff38ef | 285 | plugin_set = bt_plugin_create_all_from_static(); |
8c1a3187 PP |
286 | if (plugin_set) { |
287 | for (j = 0; j < plugin_set->plugins->len; j++) { | |
288 | struct bt_plugin *candidate_plugin = | |
289 | g_ptr_array_index(plugin_set->plugins, j); | |
a8ff38ef | 290 | |
8c1a3187 PP |
291 | if (strcmp(bt_plugin_get_name(candidate_plugin), |
292 | plugin_name) == 0) { | |
293 | BT_LOGD("Plugin found in built-in plugins: " | |
294 | "name=\"%s\"", plugin_name); | |
4b70020d PP |
295 | plugin = candidate_plugin; |
296 | bt_object_get_no_null_check(plugin); | |
8c1a3187 PP |
297 | goto end; |
298 | } | |
1670bffd | 299 | } |
1670bffd PP |
300 | } |
301 | ||
302 | end: | |
303 | free(home_plugin_dir); | |
8138bfe1 | 304 | bt_object_put_ref(plugin_set); |
1670bffd PP |
305 | |
306 | if (dirs) { | |
307 | g_ptr_array_free(dirs, TRUE); | |
308 | } | |
309 | ||
8c1a3187 | 310 | if (plugin) { |
834e9996 PP |
311 | BT_LIB_LOGD("Found plugin in standard directories and built-in plugins: " |
312 | "%!+l", plugin); | |
8c1a3187 PP |
313 | } else { |
314 | BT_LOGD("No plugin found in standard directories and built-in plugins: " | |
315 | "name=\"%s\"", plugin_name); | |
316 | } | |
317 | ||
1670bffd PP |
318 | return plugin; |
319 | } | |
320 | ||
1307d39e MJ |
321 | static struct { |
322 | pthread_mutex_t lock; | |
323 | struct bt_plugin_set *plugin_set; | |
834e9996 | 324 | bool recurse; |
1307d39e MJ |
325 | } append_all_from_dir_info = { |
326 | .lock = PTHREAD_MUTEX_INITIALIZER | |
327 | }; | |
328 | ||
33b34c43 | 329 | static |
1307d39e MJ |
330 | int nftw_append_all_from_dir(const char *file, const struct stat *sb, int flag, |
331 | struct FTW *s) | |
33b34c43 | 332 | { |
1307d39e MJ |
333 | int ret = 0; |
334 | const char *name = file + s->base; | |
335 | ||
336 | /* Check for recursion */ | |
337 | if (!append_all_from_dir_info.recurse && s->level > 1) { | |
338 | goto end; | |
339 | } | |
340 | ||
341 | switch (flag) { | |
342 | case FTW_F: | |
be3c4e36 MJ |
343 | { |
344 | struct bt_plugin_set *plugins_from_file; | |
345 | ||
1307d39e MJ |
346 | if (name[0] == '.') { |
347 | /* Skip hidden files */ | |
348 | BT_LOGV("Skipping hidden file: path=\"%s\"", file); | |
349 | goto end; | |
350 | } | |
be3c4e36 MJ |
351 | |
352 | plugins_from_file = bt_plugin_create_all_from_file(file); | |
1307d39e MJ |
353 | |
354 | if (plugins_from_file) { | |
355 | size_t j; | |
356 | ||
357 | for (j = 0; j < plugins_from_file->plugins->len; j++) { | |
358 | struct bt_plugin *plugin = | |
359 | g_ptr_array_index(plugins_from_file->plugins, j); | |
360 | ||
834e9996 PP |
361 | BT_LIB_LOGD("Adding plugin to plugin set: " |
362 | "plugin-path=\"%s\", %![plugin-]+l", | |
363 | file, plugin); | |
1307d39e MJ |
364 | bt_plugin_set_add_plugin(append_all_from_dir_info.plugin_set, plugin); |
365 | } | |
33b34c43 | 366 | |
8138bfe1 | 367 | bt_object_put_ref(plugins_from_file); |
1307d39e MJ |
368 | } |
369 | break; | |
be3c4e36 | 370 | } |
1307d39e MJ |
371 | case FTW_DNR: |
372 | /* Continue to next file / directory. */ | |
373 | BT_LOGW("Cannot enter directory: continuing: path=\"%s\"", file); | |
374 | break; | |
375 | case FTW_NS: | |
376 | /* Continue to next file / directory. */ | |
377 | BT_LOGD("Cannot get file information: continuing: path=\"%s\"", file); | |
378 | break; | |
33b34c43 | 379 | } |
1307d39e MJ |
380 | |
381 | end: | |
382 | return ret; | |
33b34c43 PP |
383 | } |
384 | ||
385 | static | |
386 | enum bt_plugin_status bt_plugin_create_append_all_from_dir( | |
a8ff38ef | 387 | struct bt_plugin_set *plugin_set, const char *path, |
c55a9f58 | 388 | bt_bool recurse) |
33b34c43 | 389 | { |
1307d39e | 390 | int nftw_flags = FTW_PHYS; |
33b34c43 PP |
391 | enum bt_plugin_status ret = BT_PLUGIN_STATUS_OK; |
392 | ||
834e9996 PP |
393 | BT_ASSERT(plugin_set); |
394 | BT_ASSERT(path); | |
395 | BT_ASSERT(strlen(path) < PATH_MAX); | |
1307d39e | 396 | pthread_mutex_lock(&append_all_from_dir_info.lock); |
1307d39e MJ |
397 | append_all_from_dir_info.plugin_set = plugin_set; |
398 | append_all_from_dir_info.recurse = recurse; | |
399 | ret = nftw(path, nftw_append_all_from_dir, | |
400 | APPEND_ALL_FROM_DIR_NFDOPEN_MAX, nftw_flags); | |
1307d39e | 401 | pthread_mutex_unlock(&append_all_from_dir_info.lock); |
1307d39e | 402 | if (ret != 0) { |
834e9996 | 403 | BT_LOGW_ERRNO("Cannot open directory", ": path=\"%s\"", path); |
33b34c43 | 404 | ret = BT_PLUGIN_STATUS_ERROR; |
33b34c43 | 405 | } |
8c1a3187 | 406 | |
33b34c43 PP |
407 | return ret; |
408 | } | |
409 | ||
a8ff38ef | 410 | struct bt_plugin_set *bt_plugin_create_all_from_dir(const char *path, |
c55a9f58 | 411 | bt_bool recurse) |
33b34c43 | 412 | { |
a8ff38ef | 413 | struct bt_plugin_set *plugin_set; |
33b34c43 PP |
414 | enum bt_plugin_status status; |
415 | ||
8c1a3187 PP |
416 | BT_LOGD("Creating all plugins in directory: path=\"%s\", recurse=%d", |
417 | path, recurse); | |
a8ff38ef PP |
418 | plugin_set = bt_plugin_set_create(); |
419 | if (!plugin_set) { | |
8c1a3187 | 420 | BT_LOGE_STR("Cannot create empty plugin set."); |
a8ff38ef PP |
421 | goto error; |
422 | } | |
423 | ||
33b34c43 | 424 | /* Append found plugins to array */ |
a8ff38ef | 425 | status = bt_plugin_create_append_all_from_dir(plugin_set, path, |
33b34c43 PP |
426 | recurse); |
427 | if (status < 0) { | |
8c1a3187 | 428 | BT_LOGW("Cannot append plugins found in directory: " |
dbd7f7e9 PP |
429 | "path=\"%s\", status=%s", |
430 | path, bt_plugin_status_string(status)); | |
33b34c43 PP |
431 | goto error; |
432 | } | |
433 | ||
8c1a3187 PP |
434 | BT_LOGD("Created %u plugins from directory: count=%u, path=\"%s\"", |
435 | plugin_set->plugins->len, plugin_set->plugins->len, path); | |
33b34c43 PP |
436 | goto end; |
437 | ||
438 | error: | |
8138bfe1 | 439 | BT_OBJECT_PUT_REF_AND_RESET(plugin_set); |
33b34c43 PP |
440 | |
441 | end: | |
a8ff38ef | 442 | return plugin_set; |
33b34c43 PP |
443 | } |
444 | ||
33b34c43 PP |
445 | const char *bt_plugin_get_name(struct bt_plugin *plugin) |
446 | { | |
834e9996 PP |
447 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); |
448 | return plugin->info.name_set ? plugin->info.name->str : NULL; | |
33b34c43 PP |
449 | } |
450 | ||
451 | const char *bt_plugin_get_author(struct bt_plugin *plugin) | |
452 | { | |
834e9996 PP |
453 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); |
454 | return plugin->info.author_set ? plugin->info.author->str : NULL; | |
33b34c43 PP |
455 | } |
456 | ||
457 | const char *bt_plugin_get_license(struct bt_plugin *plugin) | |
458 | { | |
834e9996 PP |
459 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); |
460 | return plugin->info.license_set ? plugin->info.license->str : NULL; | |
33b34c43 PP |
461 | } |
462 | ||
463 | const char *bt_plugin_get_path(struct bt_plugin *plugin) | |
464 | { | |
834e9996 PP |
465 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); |
466 | return plugin->info.path_set ? plugin->info.path->str : NULL; | |
33b34c43 PP |
467 | } |
468 | ||
469 | const char *bt_plugin_get_description(struct bt_plugin *plugin) | |
470 | { | |
834e9996 PP |
471 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); |
472 | return plugin->info.description_set ? | |
473 | plugin->info.description->str : NULL; | |
33b34c43 PP |
474 | } |
475 | ||
834e9996 | 476 | enum bt_property_availability bt_plugin_get_version(struct bt_plugin *plugin, |
b6de043b PP |
477 | unsigned int *major, unsigned int *minor, unsigned int *patch, |
478 | const char **extra) | |
479 | { | |
834e9996 PP |
480 | enum bt_property_availability avail = |
481 | BT_PROPERTY_AVAILABILITY_AVAILABLE; | |
b6de043b | 482 | |
834e9996 | 483 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); |
8c1a3187 PP |
484 | |
485 | if (!plugin->info.version_set) { | |
834e9996 PP |
486 | BT_LIB_LOGV("Plugin's version is not set: %!+l", plugin); |
487 | avail = BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE; | |
b6de043b PP |
488 | goto end; |
489 | } | |
490 | ||
491 | if (major) { | |
55bb57e0 | 492 | *major = plugin->info.version.major; |
b6de043b PP |
493 | } |
494 | ||
495 | if (minor) { | |
55bb57e0 | 496 | *minor = plugin->info.version.minor; |
b6de043b PP |
497 | } |
498 | ||
499 | if (patch) { | |
55bb57e0 | 500 | *patch = plugin->info.version.patch; |
b6de043b PP |
501 | } |
502 | ||
503 | if (extra) { | |
55bb57e0 | 504 | *extra = plugin->info.version.extra->str; |
b6de043b PP |
505 | } |
506 | ||
507 | end: | |
834e9996 | 508 | return avail; |
b6de043b PP |
509 | } |
510 | ||
834e9996 | 511 | uint64_t bt_plugin_get_source_component_class_count(struct bt_plugin *plugin) |
33b34c43 | 512 | { |
834e9996 PP |
513 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); |
514 | return (uint64_t) plugin->src_comp_classes->len; | |
33b34c43 PP |
515 | } |
516 | ||
834e9996 | 517 | uint64_t bt_plugin_get_filter_component_class_count(struct bt_plugin *plugin) |
33b34c43 | 518 | { |
834e9996 PP |
519 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); |
520 | return (uint64_t) plugin->flt_comp_classes->len; | |
521 | } | |
33b34c43 | 522 | |
834e9996 PP |
523 | uint64_t bt_plugin_get_sink_component_class_count(struct bt_plugin *plugin) |
524 | { | |
525 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); | |
526 | return (uint64_t) plugin->sink_comp_classes->len; | |
527 | } | |
8c1a3187 | 528 | |
834e9996 PP |
529 | static inline |
530 | struct bt_component_class *borrow_component_class_by_index( | |
531 | struct bt_plugin *plugin, GPtrArray *comp_classes, | |
532 | uint64_t index) | |
533 | { | |
534 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); | |
535 | BT_ASSERT_PRE_VALID_INDEX(index, comp_classes->len); | |
536 | return g_ptr_array_index(comp_classes, index); | |
537 | } | |
33b34c43 | 538 | |
33b34c43 | 539 | |
834e9996 PP |
540 | struct bt_component_class_source * |
541 | bt_plugin_borrow_source_component_class_by_index( | |
542 | struct bt_plugin *plugin, uint64_t index) | |
543 | { | |
544 | return (void *) borrow_component_class_by_index(plugin, | |
545 | plugin->src_comp_classes, index); | |
546 | } | |
33b34c43 | 547 | |
834e9996 PP |
548 | struct bt_component_class_filter * |
549 | bt_plugin_borrow_filter_component_class_by_index( | |
550 | struct bt_plugin *plugin, uint64_t index) | |
551 | { | |
552 | return (void *) borrow_component_class_by_index(plugin, | |
553 | plugin->flt_comp_classes, index); | |
554 | } | |
555 | ||
556 | struct bt_component_class_sink * | |
557 | bt_plugin_borrow_sink_component_class_by_index( | |
558 | struct bt_plugin *plugin, uint64_t index) | |
559 | { | |
560 | return (void *) borrow_component_class_by_index(plugin, | |
561 | plugin->sink_comp_classes, index); | |
33b34c43 PP |
562 | } |
563 | ||
834e9996 PP |
564 | static inline |
565 | struct bt_component_class *borrow_component_class_by_name( | |
566 | struct bt_plugin *plugin, GPtrArray *comp_classes, | |
567 | const char *name) | |
33b34c43 PP |
568 | { |
569 | struct bt_component_class *comp_class = NULL; | |
570 | size_t i; | |
571 | ||
834e9996 PP |
572 | BT_ASSERT_PRE_NON_NULL(plugin, "Plugin"); |
573 | BT_ASSERT_PRE_NON_NULL(name, "Name"); | |
33b34c43 | 574 | |
834e9996 | 575 | for (i = 0; i < comp_classes->len; i++) { |
33b34c43 | 576 | struct bt_component_class *comp_class_candidate = |
834e9996 | 577 | g_ptr_array_index(comp_classes, i); |
33b34c43 PP |
578 | const char *comp_class_cand_name = |
579 | bt_component_class_get_name(comp_class_candidate); | |
33b34c43 | 580 | |
8b45963b | 581 | BT_ASSERT(comp_class_cand_name); |
33b34c43 | 582 | |
834e9996 PP |
583 | if (strcmp(name, comp_class_cand_name) == 0) { |
584 | comp_class = comp_class_candidate; | |
33b34c43 PP |
585 | break; |
586 | } | |
587 | } | |
588 | ||
33b34c43 PP |
589 | return comp_class; |
590 | } | |
591 | ||
834e9996 PP |
592 | struct bt_component_class_source * |
593 | bt_plugin_borrow_source_component_class_by_name(struct bt_plugin *plugin, | |
594 | const char *name) | |
33b34c43 | 595 | { |
834e9996 PP |
596 | return (void *) borrow_component_class_by_name(plugin, |
597 | plugin->src_comp_classes, name); | |
598 | } | |
33b34c43 | 599 | |
834e9996 PP |
600 | struct bt_component_class_filter * |
601 | bt_plugin_borrow_filter_component_class_by_name(struct bt_plugin *plugin, | |
602 | const char *name) | |
603 | { | |
604 | return (void *) borrow_component_class_by_name(plugin, | |
605 | plugin->flt_comp_classes, name); | |
606 | } | |
33b34c43 | 607 | |
834e9996 PP |
608 | struct bt_component_class_sink * |
609 | bt_plugin_borrow_sink_component_class_by_name(struct bt_plugin *plugin, | |
610 | const char *name) | |
611 | { | |
612 | return (void *) borrow_component_class_by_name(plugin, | |
613 | plugin->sink_comp_classes, name); | |
33b34c43 | 614 | } |