[babeltrace.git] / plugins / component-factory.c

/*
 * component-factory.c
 *
 * Babeltrace Plugin Component Factory
 *
 * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <babeltrace/plugin/component-factory.h>
#include <babeltrace/plugin/component-factory-internal.h>
#include <babeltrace/plugin/source-internal.h>
#include <babeltrace/plugin/sink-internal.h>
#include <babeltrace/babeltrace-internal.h>
#include <babeltrace/compiler.h>
#include <babeltrace/ref.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <gmodule.h>
#include <stdbool.h>

#define NATIVE_PLUGIN_SUFFIX ".so"
#define NATIVE_PLUGIN_SUFFIX_LEN sizeof(NATIVE_PLUGIN_SUFFIX)
#define LIBTOOL_PLUGIN_SUFFIX ".la"
#define LIBTOOL_PLUGIN_SUFFIX_LEN sizeof(LIBTOOL_PLUGIN_SUFFIX)
#define PLUGIN_SUFFIX_LEN max_t(size_t, sizeof(NATIVE_PLUGIN_SUFFIX), \
		sizeof(LIBTOOL_PLUGIN_SUFFIX))

/* Allocate dirent as recommended by READDIR(3), NOTES on readdir_r */
static
struct dirent *alloc_dirent(const char *path)
{
	size_t len;
	long name_max;
	struct dirent *entry;

	name_max = pathconf(path, _PC_NAME_MAX);
	if (name_max == -1) {
		name_max = PATH_MAX;
	}
	len = offsetof(struct dirent, d_name) + name_max + 1;
	entry = zmalloc(len);
	return entry;
}

static
enum bt_component_factory_status
bt_component_factory_load_file(struct bt_component_factory *factory,
		const char *path)
{
	enum bt_component_factory_status ret = BT_COMPONENT_FACTORY_STATUS_OK;
	enum bt_component_status component_status;
	size_t path_len;
	GModule *module;
	struct bt_plugin *plugin;
	bool is_libtool_wrapper = false, is_shared_object = false;

	if (!factory || !path) {
		ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
		goto end;
	}

	path_len = strlen(path);
	if (path_len <= PLUGIN_SUFFIX_LEN) {
		ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
		goto end;
	}

	path_len++;
	/*
	 * Check if the file ends with a known plugin file type suffix (i.e. .so
	 * or .la on Linux).
	 */
	is_libtool_wrapper = !strncmp(LIBTOOL_PLUGIN_SUFFIX,
			path + path_len - LIBTOOL_PLUGIN_SUFFIX_LEN,
			LIBTOOL_PLUGIN_SUFFIX_LEN);
	is_shared_object = !strncmp(NATIVE_PLUGIN_SUFFIX,
			path + path_len - NATIVE_PLUGIN_SUFFIX_LEN,
			NATIVE_PLUGIN_SUFFIX_LEN);
	if (!is_shared_object && !is_libtool_wrapper) {
		/* Name indicates that this is not a plugin file. */
		ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
		goto end;
	}

	module = g_module_open(path, 0);
	if (!module) {
		printf_error("Module open error: %s", g_module_error());
		ret = BT_COMPONENT_FACTORY_STATUS_ERROR;
		goto end;
	}

	/* Load plugin and make sure it defines the required entry points */
	plugin = bt_plugin_create(module);
	if (!plugin) {
		ret = BT_COMPONENT_FACTORY_STATUS_INVAL_PLUGIN;
		if (!g_module_close(module)) {
			printf_error("Module close error: %s",
				g_module_error());
		}
		goto end;
	}

	component_status = bt_plugin_register_component_classes(plugin,
			factory);
	if (component_status != BT_COMPONENT_STATUS_OK) {
		switch (component_status) {
		case BT_COMPONENT_STATUS_NOMEM:
			ret = BT_COMPONENT_FACTORY_STATUS_NOMEM;
			break;
		default:
			ret = BT_COMPONENT_FACTORY_STATUS_ERROR;
			break;
		}

		BT_PUT(plugin);
		goto end;
	}
	g_ptr_array_add(factory->plugins, plugin);
end:
	return ret;
}

static
enum bt_component_factory_status
bt_component_factory_load_dir_recursive(struct bt_component_factory *factory,
		const char *path)
{
	DIR *directory = NULL;
	struct dirent *entry = NULL, *result = NULL;
	char *file_path = NULL;
	size_t path_len = strlen(path);
	enum bt_component_factory_status ret = BT_COMPONENT_FACTORY_STATUS_OK;

	if (path_len >= PATH_MAX) {
		ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
		goto end;
	}

	entry = alloc_dirent(path);
	if (!entry) {
		ret = BT_COMPONENT_FACTORY_STATUS_NOMEM;
		goto end;
	}

	file_path = zmalloc(PATH_MAX);
	if (!file_path) {
		ret = BT_COMPONENT_FACTORY_STATUS_NOMEM;
		goto end;
	}

	strncpy(file_path, path, path_len);
	/* Append a trailing '/' to the path */
	if (file_path[path_len - 1] != '/') {
		file_path[path_len++] = '/';
	}

	directory = opendir(file_path);
	if (!directory) {
		perror("Failed to open plug-in directory");
		ret = BT_COMPONENT_FACTORY_STATUS_ERROR;
		goto end;
	}

	/* Recursively walk directory */
	while (!readdir_r(directory, entry, &result) && result) {
		struct stat st;
		int stat_ret;
		size_t file_name_len;

		if (result->d_name[0] == '.') {
			/* Skip hidden files, . and .. */
			continue;
		}

		file_name_len = strlen(result->d_name);

		if (path_len + file_name_len >= PATH_MAX) {
			continue;
		}

		strncpy(file_path + path_len, result->d_name, file_name_len);
		file_path[path_len + file_name_len] = '\0';

		stat_ret = stat(file_path, &st);
		if (stat_ret < 0) {
			/* Continue to next file / directory. */
			printf_perror("Failed to stat() plugin file");
			continue;
		}

		if (S_ISDIR(st.st_mode)) {
			ret = bt_component_factory_load_dir_recursive(factory,
					file_path);
			if (ret != BT_COMPONENT_FACTORY_STATUS_OK) {
				goto end;
			}
		} else if (S_ISREG(st.st_mode)) {
		        bt_component_factory_load_file(factory, file_path);
		}
	}
end:
	if (directory) {
		if (closedir(directory)) {
			/*
			 * We don't want to override the error since there is
			 * nothing could do.
			 */
		        perror("Failed to close plug-in directory");
		}
	}
	free(entry);
	free(file_path);
	return ret;
}

static
void bt_component_factory_destroy(struct bt_object *obj)
{
	struct bt_component_factory *factory = NULL;

	assert(obj);
	factory = container_of(obj, struct bt_component_factory, base);

	if (factory->plugins) {
		g_ptr_array_free(factory->plugins, TRUE);
	}
	if (factory->component_classes) {
		g_ptr_array_free(factory->component_classes, TRUE);
	}
	g_free(factory);
}

struct bt_component_factory *bt_component_factory_create(void)
{
	struct bt_component_factory *factory;

	factory = g_new0(struct bt_component_factory, 1);
	if (!factory) {
		goto end;
	}

	bt_object_init(factory, bt_component_factory_destroy);
	factory->plugins = g_ptr_array_new_with_free_func(
		(GDestroyNotify) bt_put);
	if (!factory->plugins) {
		goto error;
	}
	factory->component_classes = g_ptr_array_new_with_free_func(
		(GDestroyNotify) bt_put);
	if (!factory->component_classes) {
		goto error;
	}
end:
	return factory;
error:
        BT_PUT(factory);
	return factory;
}

struct bt_value *bt_component_factory_get_components(
		struct bt_component_factory *factory)
{
	assert(0);
	return NULL;
}

enum bt_component_factory_status bt_component_factory_load(
		struct bt_component_factory *factory, const char *path)
{
	enum bt_component_factory_status ret = BT_COMPONENT_FACTORY_STATUS_OK;

	if (!factory || !path) {
		ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
		goto end;
	}

	if (!g_file_test(path, G_FILE_TEST_EXISTS)) {
		ret = BT_COMPONENT_FACTORY_STATUS_NOENT;
		goto end;
	}

	if (g_file_test(path, G_FILE_TEST_IS_DIR)) {
		ret = bt_component_factory_load_dir_recursive(factory, path);
	} else if (g_file_test(path, G_FILE_TEST_IS_REGULAR) ||
			g_file_test(path, G_FILE_TEST_IS_SYMLINK)) {
		ret = bt_component_factory_load_file(factory, path);
	} else {
		ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
		goto end;
	}
end:
	return ret;
}

enum bt_component_factory_status
bt_component_factory_register_source_component_class(
		struct bt_component_factory *factory, const char *name,
		bt_component_source_init_cb init)
{
	assert(0);
	return BT_COMPONENT_FACTORY_STATUS_ERROR;
}

enum bt_component_factory_status
bt_component_factory_register_sink_component_class(
		struct bt_component_factory *factory, const char *name,
		bt_component_sink_init_cb init)
{
	struct bt_component_class *class;
	enum bt_component_factory_status ret = BT_COMPONENT_FACTORY_STATUS_OK;

	if (!factory || !name || !init) {
		ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
		goto end;
	}

end:
	return ret;
}
Commit	Line	Data
f3e4505b JG	1	/*
	2	* component-factory.c
	3	*
	4	* Babeltrace Plugin Component Factory
	5	*
	6	* Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
	7	*
	8	* Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
	9	*
	10	* Permission is hereby granted, free of charge, to any person obtaining a copy
	11	* of this software and associated documentation files (the "Software"), to deal
	12	* in the Software without restriction, including without limitation the rights
	13	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	14	* copies of the Software, and to permit persons to whom the Software is
	15	* furnished to do so, subject to the following conditions:
	16	*
	17	* The above copyright notice and this permission notice shall be included in
	18	* all copies or substantial portions of the Software.
	19	*
	20	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	21	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	23	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	24	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	25	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	26	* SOFTWARE.
	27	*/
	28
	29	#include <babeltrace/plugin/component-factory.h>
	30	#include <babeltrace/plugin/component-factory-internal.h>
92893b7b JG	31	#include <babeltrace/plugin/source-internal.h>
92893b7b JG	32	#include <babeltrace/plugin/sink-internal.h>
f3e4505b JG	33	#include <babeltrace/babeltrace-internal.h>
f3e4505b JG	34	#include <babeltrace/compiler.h>
b8a06801	35	#include <babeltrace/ref.h>
f3e4505b JG	36	#include <unistd.h>
	37	#include <stdlib.h>
	38	#include <sys/stat.h>
fb2dcc52	39	#include <gmodule.h>
39cfa40f	40	#include <stdbool.h>
f3e4505b JG	41
	42	#define NATIVE_PLUGIN_SUFFIX ".so"
	43	#define NATIVE_PLUGIN_SUFFIX_LEN sizeof(NATIVE_PLUGIN_SUFFIX)
	44	#define LIBTOOL_PLUGIN_SUFFIX ".la"
	45	#define LIBTOOL_PLUGIN_SUFFIX_LEN sizeof(LIBTOOL_PLUGIN_SUFFIX)
73299554 JG	46	#define PLUGIN_SUFFIX_LEN max_t(size_t, sizeof(NATIVE_PLUGIN_SUFFIX), \
73299554 JG	47	sizeof(LIBTOOL_PLUGIN_SUFFIX))
f3e4505b	48
f3e4505b JG	49	/* Allocate dirent as recommended by READDIR(3), NOTES on readdir_r */
	50	static
	51	struct dirent alloc_dirent(const char path)
	52	{
	53	size_t len;
	54	long name_max;
	55	struct dirent *entry;
	56
	57	name_max = pathconf(path, _PC_NAME_MAX);
	58	if (name_max == -1) {
	59	name_max = PATH_MAX;
	60	}
	61	len = offsetof(struct dirent, d_name) + name_max + 1;
	62	entry = zmalloc(len);
	63	return entry;
	64	}
	65
	66	static
	67	enum bt_component_factory_status
	68	bt_component_factory_load_file(struct bt_component_factory *factory,
	69	const char *path)
	70	{
	71	enum bt_component_factory_status ret = BT_COMPONENT_FACTORY_STATUS_OK;
fb2dcc52	72	enum bt_component_status component_status;
f3e4505b JG	73	size_t path_len;
f3e4505b JG	74	GModule *module;
fb2dcc52	75	struct bt_plugin *plugin;
92893b7b	76	bool is_libtool_wrapper = false, is_shared_object = false;
f3e4505b JG	77
	78	if (!factory \|\| !path) {
	79	ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
	80	goto end;
	81	}
	82
	83	path_len = strlen(path);
	84	if (path_len <= PLUGIN_SUFFIX_LEN) {
73299554	85	ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
f3e4505b JG	86	goto end;
	87	}
	88
	89	path_len++;
	90	/*
	91	* Check if the file ends with a known plugin file type suffix (i.e. .so
	92	* or .la on Linux).
	93	*/
92893b7b	94	is_libtool_wrapper = !strncmp(LIBTOOL_PLUGIN_SUFFIX,
b8a06801	95	path + path_len - LIBTOOL_PLUGIN_SUFFIX_LEN,
92893b7b JG	96	LIBTOOL_PLUGIN_SUFFIX_LEN);
	97	is_shared_object = !strncmp(NATIVE_PLUGIN_SUFFIX,
	98	path + path_len - NATIVE_PLUGIN_SUFFIX_LEN,
	99	NATIVE_PLUGIN_SUFFIX_LEN);
	100	if (!is_shared_object && !is_libtool_wrapper) {
73299554 JG	101	/* Name indicates that this is not a plugin file. */
73299554 JG	102	ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
f3e4505b JG	103	goto end;
	104	}
	105
	106	module = g_module_open(path, 0);
	107	if (!module) {
	108	printf_error("Module open error: %s", g_module_error());
73299554	109	ret = BT_COMPONENT_FACTORY_STATUS_ERROR;
f3e4505b JG	110	goto end;
	111	}
	112
fb2dcc52 JG	113	/* Load plugin and make sure it defines the required entry points */
fb2dcc52 JG	114	plugin = bt_plugin_create(module);
73299554	115	if (!plugin) {
fb2dcc52	116	ret = BT_COMPONENT_FACTORY_STATUS_INVAL_PLUGIN;
73299554 JG	117	if (!g_module_close(module)) {
73299554 JG	118	printf_error("Module close error: %s",
fb2dcc52 JG	119	g_module_error());
	120	}
	121	goto end;
	122	}
	123
	124	component_status = bt_plugin_register_component_classes(plugin,
b8a06801	125	factory);
fb2dcc52 JG	126	if (component_status != BT_COMPONENT_STATUS_OK) {
	127	switch (component_status) {
	128	case BT_COMPONENT_STATUS_NOMEM:
	129	ret = BT_COMPONENT_FACTORY_STATUS_NOMEM;
	130	break;
	131	default:
	132	ret = BT_COMPONENT_FACTORY_STATUS_ERROR;
	133	break;
73299554	134	}
b8a06801 JG	135
b8a06801 JG	136	BT_PUT(plugin);
73299554 JG	137	goto end;
73299554 JG	138	}
fb2dcc52	139	g_ptr_array_add(factory->plugins, plugin);
f3e4505b JG	140	end:
	141	return ret;
	142	}
	143
	144	static
	145	enum bt_component_factory_status
	146	bt_component_factory_load_dir_recursive(struct bt_component_factory *factory,
	147	const char *path)
	148	{
	149	DIR *directory = NULL;
	150	struct dirent entry = NULL, result = NULL;
	151	char *file_path = NULL;
	152	size_t path_len = strlen(path);
	153	enum bt_component_factory_status ret = BT_COMPONENT_FACTORY_STATUS_OK;
	154
	155	if (path_len >= PATH_MAX) {
	156	ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
	157	goto end;
	158	}
	159
	160	entry = alloc_dirent(path);
	161	if (!entry) {
	162	ret = BT_COMPONENT_FACTORY_STATUS_NOMEM;
	163	goto end;
	164	}
	165
	166	file_path = zmalloc(PATH_MAX);
	167	if (!file_path) {
	168	ret = BT_COMPONENT_FACTORY_STATUS_NOMEM;
	169	goto end;
	170	}
	171
	172	strncpy(file_path, path, path_len);
	173	/* Append a trailing '/' to the path */
	174	if (file_path[path_len - 1] != '/') {
	175	file_path[path_len++] = '/';
	176	}
	177
33bceaf8 JG	178	directory = opendir(file_path);
	179	if (!directory) {
	180	perror("Failed to open plug-in directory");
	181	ret = BT_COMPONENT_FACTORY_STATUS_ERROR;
	182	goto end;
	183	}
	184
f3e4505b JG	185	/* Recursively walk directory */
	186	while (!readdir_r(directory, entry, &result) && result) {
	187	struct stat st;
	188	int stat_ret;
33bceaf8 JG	189	size_t file_name_len;
	190
	191	if (result->d_name[0] == '.') {
	192	/* Skip hidden files, . and .. */
	193	continue;
	194	}
	195
	196	file_name_len = strlen(result->d_name);
f3e4505b JG	197
	198	if (path_len + file_name_len >= PATH_MAX) {
	199	continue;
	200	}
	201
	202	strncpy(file_path + path_len, result->d_name, file_name_len);
	203	file_path[path_len + file_name_len] = '\0';
	204
	205	stat_ret = stat(file_path, &st);
	206	if (stat_ret < 0) {
	207	/* Continue to next file / directory. */
	208	printf_perror("Failed to stat() plugin file");
	209	continue;
	210	}
	211
	212	if (S_ISDIR(st.st_mode)) {
	213	ret = bt_component_factory_load_dir_recursive(factory,
b8a06801	214	file_path);
f3e4505b JG	215	if (ret != BT_COMPONENT_FACTORY_STATUS_OK) {
	216	goto end;
	217	}
	218	} else if (S_ISREG(st.st_mode)) {
73299554	219	bt_component_factory_load_file(factory, file_path);
f3e4505b JG	220	}
	221	}
	222	end:
33bceaf8 JG	223	if (directory) {
	224	if (closedir(directory)) {
	225	/*
	226	* We don't want to override the error since there is
	227	* nothing could do.
	228	*/
	229	perror("Failed to close plug-in directory");
	230	}
	231	}
f3e4505b JG	232	free(entry);
	233	free(file_path);
	234	return ret;
	235	}
	236
b8a06801 JG	237	static
b8a06801 JG	238	void bt_component_factory_destroy(struct bt_object *obj)
f3e4505b	239	{
b8a06801 JG	240	struct bt_component_factory *factory = NULL;
	241
	242	assert(obj);
	243	factory = container_of(obj, struct bt_component_factory, base);
f3e4505b	244
fb2dcc52 JG	245	if (factory->plugins) {
	246	g_ptr_array_free(factory->plugins, TRUE);
	247	}
92893b7b JG	248	if (factory->component_classes) {
92893b7b JG	249	g_ptr_array_free(factory->component_classes, TRUE);
fb2dcc52	250	}
f3e4505b JG	251	g_free(factory);
	252	}
	253
b8a06801	254	struct bt_component_factory *bt_component_factory_create(void)
f3e4505b JG	255	{
	256	struct bt_component_factory *factory;
	257
	258	factory = g_new0(struct bt_component_factory, 1);
	259	if (!factory) {
	260	goto end;
	261	}
	262
b8a06801	263	bt_object_init(factory, bt_component_factory_destroy);
fb2dcc52	264	factory->plugins = g_ptr_array_new_with_free_func(
b8a06801	265	(GDestroyNotify) bt_put);
73299554	266	if (!factory->plugins) {
f3e4505b JG	267	goto error;
f3e4505b JG	268	}
92893b7b	269	factory->component_classes = g_ptr_array_new_with_free_func(
b8a06801	270	(GDestroyNotify) bt_put);
92893b7b	271	if (!factory->component_classes) {
fb2dcc52 JG	272	goto error;
fb2dcc52 JG	273	}
f3e4505b JG	274	end:
	275	return factory;
	276	error:
b8a06801 JG	277	BT_PUT(factory);
b8a06801 JG	278	return factory;
f3e4505b JG	279	}
f3e4505b JG	280
2e339de1	281	struct bt_value *bt_component_factory_get_components(
92893b7b JG	282	struct bt_component_factory *factory)
	283	{
	284	assert(0);
	285	return NULL;
	286	}
	287
f3e4505b JG	288	enum bt_component_factory_status bt_component_factory_load(
	289	struct bt_component_factory factory, const char path)
	290	{
	291	enum bt_component_factory_status ret = BT_COMPONENT_FACTORY_STATUS_OK;
f3e4505b JG	292
	293	if (!factory \|\| !path) {
	294	ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
	295	goto end;
	296	}
	297
b8a06801 JG	298	if (!g_file_test(path, G_FILE_TEST_EXISTS)) {
	299	ret = BT_COMPONENT_FACTORY_STATUS_NOENT;
	300	goto end;
f3e4505b JG	301	}
f3e4505b JG	302
b8a06801	303	if (g_file_test(path, G_FILE_TEST_IS_DIR)) {
f3e4505b	304	ret = bt_component_factory_load_dir_recursive(factory, path);
b8a06801 JG	305	} else if (g_file_test(path, G_FILE_TEST_IS_REGULAR) \|\|
b8a06801 JG	306	g_file_test(path, G_FILE_TEST_IS_SYMLINK)) {
f3e4505b	307	ret = bt_component_factory_load_file(factory, path);
b8a06801 JG	308	} else {
	309	ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
	310	goto end;
f3e4505b JG	311	}
f3e4505b JG	312	end:
f3e4505b JG	313	return ret;
f3e4505b JG	314	}
92893b7b JG	315
	316	enum bt_component_factory_status
	317	bt_component_factory_register_source_component_class(
	318	struct bt_component_factory factory, const char name,
	319	bt_component_source_init_cb init)
	320	{
	321	assert(0);
	322	return BT_COMPONENT_FACTORY_STATUS_ERROR;
	323	}
	324
	325	enum bt_component_factory_status
	326	bt_component_factory_register_sink_component_class(
	327	struct bt_component_factory factory, const char name,
	328	bt_component_sink_init_cb init)
	329	{
	330	struct bt_component_class *class;
	331	enum bt_component_factory_status ret = BT_COMPONENT_FACTORY_STATUS_OK;
	332
	333	if (!factory \|\| !name \|\| !init) {
	334	ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
	335	goto end;
	336	}
	337
92893b7b JG	338	end:
	339	return ret;
	340	}