[babeltrace.git] / lib / trace-ir / attributes.c

/*
 * Copyright (c) 2015 EfficiOS Inc. and Linux Foundation
 * Copyright (c) 2015 Philippe Proulx <pproulx@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.
 */

#define BT_LOG_TAG "ATTRS"
#include <babeltrace2/lib-logging-internal.h>

#include <babeltrace2/babeltrace-internal.h>
#include <babeltrace2/value.h>
#include <babeltrace2/assert-pre-internal.h>
#include <babeltrace2/object-internal.h>
#include <babeltrace2/value-const.h>
#include <babeltrace2/value-internal.h>
#include <babeltrace2/trace-ir/attributes-internal.h>
#include <inttypes.h>
#include <babeltrace2/compat/string-internal.h>
#include <babeltrace2/assert-internal.h>

#define BT_ATTR_NAME_INDEX		0
#define BT_ATTR_VALUE_INDEX		1

BT_HIDDEN
struct bt_value *bt_attributes_create(void)
{
	struct bt_value *attr_obj;

	/*
	 * Attributes: array value object of array value objects, each one
	 * containing two entries: a string value object (attributes
	 * field name), and a value object (attributes field value).
	 *
	 * Example (JSON representation):
	 *
	 *     [
	 *         ["hostname", "eeppdesk"],
	 *         ["sysname", "Linux"],
	 *         ["tracer_major", 2],
	 *         ["tracer_minor", 5]
	 *     ]
	 */
	BT_LOGD_STR("Creating attributes object.");
	attr_obj = bt_value_array_create();
	if (!attr_obj) {
		BT_LOGE_STR("Failed to create array value.");
	} else {
		BT_LOGD("Created attributes object: addr=%p",
			attr_obj);
	}

	return attr_obj;
}

BT_HIDDEN
void bt_attributes_destroy(struct bt_value *attr_obj)
{
	BT_LOGD("Destroying attributes object: addr=%p", attr_obj);
	BT_OBJECT_PUT_REF_AND_RESET(attr_obj);
}

BT_HIDDEN
int64_t bt_attributes_get_count(const struct bt_value *attr_obj)
{
	return bt_value_array_get_size(attr_obj);
}

BT_HIDDEN
const char *bt_attributes_get_field_name(const struct bt_value *attr_obj,
		uint64_t index)
{
	const char *ret = NULL;
	const struct bt_value *attr_field_obj = NULL;
	const struct bt_value *attr_field_name_obj = NULL;

	if (!attr_obj) {
		BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
		goto end;
	}

	if (index >= bt_value_array_get_size(attr_obj)) {
		BT_LOGW("Invalid parameter: index is out of bounds: "
			"index=%" PRIu64 ", count=%" PRId64,
			index, bt_value_array_get_size(attr_obj));
		goto end;
	}

	attr_field_obj = bt_value_array_borrow_element_by_index_const(
		attr_obj, index);
	if (!attr_field_obj) {
		BT_LOGE("Cannot get attributes object's array value's element by index: "
			"value-addr=%p, index=%" PRIu64, attr_obj, index);
		goto end;
	}

	attr_field_name_obj =
		bt_value_array_borrow_element_by_index_const(attr_field_obj,
			BT_ATTR_NAME_INDEX);
	if (!attr_field_name_obj) {
		BT_LOGE("Cannot get attribute array value's element by index: "
			"value-addr=%p, index=%" PRIu64, attr_field_obj,
			(uint64_t) BT_ATTR_NAME_INDEX);
		goto end;
	}

	ret = bt_value_string_get(attr_field_name_obj);

end:
	return ret;
}

BT_HIDDEN
struct bt_value *bt_attributes_borrow_field_value(
		struct bt_value *attr_obj, uint64_t index)
{
	struct bt_value *value_obj = NULL;
	struct bt_value *attr_field_obj = NULL;

	if (!attr_obj) {
		BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
		goto end;
	}

	if (index >= bt_value_array_get_size(attr_obj)) {
		BT_LOGW("Invalid parameter: index is out of bounds: "
			"index=%" PRIu64 ", count=%" PRId64,
			index, bt_value_array_get_size(attr_obj));
		goto end;
	}

	attr_field_obj =
		bt_value_array_borrow_element_by_index(attr_obj, index);
	if (!attr_field_obj) {
		BT_LOGE("Cannot get attributes object's array value's element by index: "
			"value-addr=%p, index=%" PRIu64, attr_obj, index);
		goto end;
	}

	value_obj = bt_value_array_borrow_element_by_index(
		attr_field_obj, BT_ATTR_VALUE_INDEX);
	if (!value_obj) {
		BT_LOGE("Cannot get attribute array value's element by index: "
			"value-addr=%p, index=%" PRIu64, attr_field_obj,
			(uint64_t) BT_ATTR_VALUE_INDEX);
	}

end:
	return value_obj;
}

static
struct bt_value *bt_attributes_borrow_field_by_name(
		struct bt_value *attr_obj, const char *name)
{
	uint64_t i;
	int64_t attr_size;
	struct bt_value *value_obj = NULL;
	struct bt_value *attr_field_name_obj = NULL;

	attr_size = bt_value_array_get_size(attr_obj);
	if (attr_size < 0) {
		BT_LOGE("Cannot get array value's size: value-addr=%p",
			attr_obj);
		goto error;
	}

	for (i = 0; i < attr_size; ++i) {
		const char *field_name;

		value_obj = bt_value_array_borrow_element_by_index(
			attr_obj, i);
		if (!value_obj) {
			BT_LOGE("Cannot get attributes object's array value's element by index: "
				"value-addr=%p, index=%" PRIu64, attr_obj, i);
			goto error;
		}

		attr_field_name_obj =
			bt_value_array_borrow_element_by_index(
				value_obj, BT_ATTR_NAME_INDEX);
		if (!attr_field_name_obj) {
			BT_LOGE("Cannot get attribute array value's element by index: "
				"value-addr=%p, index=%" PRIu64,
				value_obj, (int64_t) BT_ATTR_NAME_INDEX);
			goto error;
		}

		field_name = bt_value_string_get(attr_field_name_obj);

		if (!strcmp(field_name, name)) {
			break;
		}

		value_obj = NULL;
	}

	return value_obj;

error:
	value_obj = NULL;
	return value_obj;
}

BT_HIDDEN
int bt_attributes_set_field_value(struct bt_value *attr_obj,
		const char *name, struct bt_value *value_obj)
{
	int ret = 0;
	struct bt_value *attr_field_obj = NULL;

	if (!attr_obj || !name || !value_obj) {
		BT_LOGW("Invalid parameter: attributes object, name, or value object is NULL: "
			"attr-value-addr=%p, name-addr=%p, value-addr=%p",
			attr_obj, name, value_obj);
		ret = -1;
		goto end;
	}

	attr_field_obj = bt_attributes_borrow_field_by_name(attr_obj, name);
	if (attr_field_obj) {
		ret = bt_value_array_set_element_by_index(
			attr_field_obj, BT_ATTR_VALUE_INDEX,
			value_obj);
		attr_field_obj = NULL;
		goto end;
	}

	attr_field_obj = bt_value_array_create();
	if (!attr_field_obj) {
		BT_LOGE_STR("Failed to create empty array value.");
		ret = -1;
		goto end;
	}

	ret = bt_value_array_append_string_element(attr_field_obj,
		name);
	ret |= bt_value_array_append_element(attr_field_obj,
		value_obj);
	if (ret) {
		BT_LOGE("Cannot append elements to array value: addr=%p",
			attr_field_obj);
		goto end;
	}

	ret = bt_value_array_append_element(attr_obj,
		attr_field_obj);
	if (ret) {
		BT_LOGE("Cannot append element to array value: "
			"array-value-addr=%p, element-value-addr=%p",
			attr_obj, attr_field_obj);
	}

end:
	bt_object_put_ref(attr_field_obj);
	return ret;
}

BT_HIDDEN
struct bt_value *bt_attributes_borrow_field_value_by_name(
		struct bt_value *attr_obj, const char *name)
{
	struct bt_value *value_obj = NULL;
	struct bt_value *attr_field_obj = NULL;

	if (!attr_obj || !name) {
		BT_LOGW("Invalid parameter: attributes object or name is NULL: "
			"value-addr=%p, name-addr=%p", attr_obj, name);
		goto end;
	}

	attr_field_obj = bt_attributes_borrow_field_by_name(attr_obj, name);
	if (!attr_field_obj) {
		BT_LOGD("Cannot find attributes object's field by name: "
			"value-addr=%p, name=\"%s\"", attr_obj, name);
		goto end;
	}

	value_obj = bt_value_array_borrow_element_by_index(
		attr_field_obj, BT_ATTR_VALUE_INDEX);
	if (!value_obj) {
		BT_LOGE("Cannot get attribute array value's element by index: "
			"value-addr=%p, index=%" PRIu64, attr_field_obj,
			(uint64_t) BT_ATTR_VALUE_INDEX);
	}

end:
	return value_obj;
}

BT_HIDDEN
int bt_attributes_freeze(const struct bt_value *attr_obj)
{
	uint64_t i;
	int64_t count;
	int ret = 0;

	if (!attr_obj) {
		BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
		ret = -1;
		goto end;
	}

	BT_LOGD("Freezing attributes object: value-addr=%p", attr_obj);
	count = bt_value_array_get_size(attr_obj);
	BT_ASSERT(count >= 0);

	/*
	 * We do not freeze the array value object itself here, since
	 * internal stuff could need to modify/add attributes. Each
	 * attribute is frozen one by one.
	 */
	for (i = 0; i < count; ++i) {
		struct bt_value *obj = NULL;

		obj = bt_attributes_borrow_field_value(
			(void *) attr_obj, i);
		if (!obj) {
			BT_LOGE("Cannot get attributes object's field value by index: "
				"value-addr=%p, index=%" PRIu64,
				attr_obj, i);
			ret = -1;
			goto end;
		}

		bt_value_freeze(obj);
	}

end:
	return ret;
}
Commit	Line	Data
44e0a4f5	1	/*
44e0a4f5 JG	2	* Copyright (c) 2015 EfficiOS Inc. and Linux Foundation
	3	* Copyright (c) 2015 Philippe Proulx <pproulx@efficios.com>
	4	*
	5	* Permission is hereby granted, free of charge, to any person obtaining a copy
	6	* of this software and associated documentation files (the "Software"), to deal
	7	* in the Software without restriction, including without limitation the rights
	8	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	9	* copies of the Software, and to permit persons to whom the Software is
	10	* furnished to do so, subject to the following conditions:
	11	*
	12	* The above copyright notice and this permission notice shall be included in
	13	* all copies or substantial portions of the Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	18	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	20	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	21	* SOFTWARE.
	22	*/
	23
0f5e83e5	24	#define BT_LOG_TAG "ATTRS"
3fadfbc0	25	#include <babeltrace2/lib-logging-internal.h>
0f5e83e5	26
3fadfbc0 MJ	27	#include <babeltrace2/babeltrace-internal.h>
	28	#include <babeltrace2/value.h>
	29	#include <babeltrace2/assert-pre-internal.h>
	30	#include <babeltrace2/object-internal.h>
	31	#include <babeltrace2/value-const.h>
	32	#include <babeltrace2/value-internal.h>
	33	#include <babeltrace2/trace-ir/attributes-internal.h>
561ad8c1	34	#include <inttypes.h>
3fadfbc0 MJ	35	#include <babeltrace2/compat/string-internal.h>
3fadfbc0 MJ	36	#include <babeltrace2/assert-internal.h>
44e0a4f5	37
50842bdc PP	38	#define BT_ATTR_NAME_INDEX 0
50842bdc PP	39	#define BT_ATTR_VALUE_INDEX 1
44e0a4f5 JG	40
44e0a4f5 JG	41	BT_HIDDEN
05e21286	42	struct bt_value *bt_attributes_create(void)
44e0a4f5	43	{
05e21286	44	struct bt_value *attr_obj;
561ad8c1	45
44e0a4f5	46	/*
dac5c838 PP	47	* Attributes: array value object of array value objects, each one
	48	* containing two entries: a string value object (attributes
	49	* field name), and a value object (attributes field value).
44e0a4f5 JG	50	*
	51	* Example (JSON representation):
	52	*
	53	* [
	54	* ["hostname", "eeppdesk"],
	55	* ["sysname", "Linux"],
	56	* ["tracer_major", 2],
	57	* ["tracer_minor", 5]
	58	* ]
	59	*/
561ad8c1	60	BT_LOGD_STR("Creating attributes object.");
05e21286	61	attr_obj = bt_value_array_create();
561ad8c1 PP	62	if (!attr_obj) {
	63	BT_LOGE_STR("Failed to create array value.");
	64	} else {
	65	BT_LOGD("Created attributes object: addr=%p",
	66	attr_obj);
	67	}
	68
	69	return attr_obj;
44e0a4f5 JG	70	}
	71
	72	BT_HIDDEN
05e21286	73	void bt_attributes_destroy(struct bt_value *attr_obj)
44e0a4f5	74	{
561ad8c1	75	BT_LOGD("Destroying attributes object: addr=%p", attr_obj);
238b7404	76	BT_OBJECT_PUT_REF_AND_RESET(attr_obj);
44e0a4f5 JG	77	}
	78
	79	BT_HIDDEN
05e21286	80	int64_t bt_attributes_get_count(const struct bt_value *attr_obj)
44e0a4f5	81	{
05e21286	82	return bt_value_array_get_size(attr_obj);
44e0a4f5 JG	83	}
	84
	85	BT_HIDDEN
05e21286	86	const char bt_attributes_get_field_name(const struct bt_value attr_obj,
dcf0cc71	87	uint64_t index)
44e0a4f5	88	{
44e0a4f5	89	const char *ret = NULL;
05e21286 PP	90	const struct bt_value *attr_field_obj = NULL;
05e21286 PP	91	const struct bt_value *attr_field_name_obj = NULL;
44e0a4f5	92
561ad8c1 PP	93	if (!attr_obj) {
561ad8c1 PP	94	BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
44e0a4f5 JG	95	goto end;
	96	}
	97
05e21286	98	if (index >= bt_value_array_get_size(attr_obj)) {
f6ccaed9 PP	99	BT_LOGW("Invalid parameter: index is out of bounds: "
f6ccaed9 PP	100	"index=%" PRIu64 ", count=%" PRId64,
05e21286	101	index, bt_value_array_get_size(attr_obj));
f6ccaed9 PP	102	goto end;
	103	}
	104
05e21286	105	attr_field_obj = bt_value_array_borrow_element_by_index_const(
da91b29a	106	attr_obj, index);
44e0a4f5	107	if (!attr_field_obj) {
561ad8c1 PP	108	BT_LOGE("Cannot get attributes object's array value's element by index: "
561ad8c1 PP	109	"value-addr=%p, index=%" PRIu64, attr_obj, index);
44e0a4f5 JG	110	goto end;
	111	}
	112
da91b29a	113	attr_field_name_obj =
05e21286	114	bt_value_array_borrow_element_by_index_const(attr_field_obj,
da91b29a	115	BT_ATTR_NAME_INDEX);
44e0a4f5	116	if (!attr_field_name_obj) {
561ad8c1 PP	117	BT_LOGE("Cannot get attribute array value's element by index: "
561ad8c1 PP	118	"value-addr=%p, index=%" PRIu64, attr_field_obj,
50842bdc	119	(uint64_t) BT_ATTR_NAME_INDEX);
44e0a4f5 JG	120	goto end;
	121	}
	122
05e21286	123	ret = bt_value_string_get(attr_field_name_obj);
44e0a4f5 JG	124
44e0a4f5 JG	125	end:
44e0a4f5 JG	126	return ret;
	127	}
	128
	129	BT_HIDDEN
05e21286 PP	130	struct bt_value *bt_attributes_borrow_field_value(
05e21286 PP	131	struct bt_value *attr_obj, uint64_t index)
44e0a4f5	132	{
05e21286 PP	133	struct bt_value *value_obj = NULL;
05e21286 PP	134	struct bt_value *attr_field_obj = NULL;
44e0a4f5	135
561ad8c1 PP	136	if (!attr_obj) {
561ad8c1 PP	137	BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
44e0a4f5 JG	138	goto end;
	139	}
	140
05e21286	141	if (index >= bt_value_array_get_size(attr_obj)) {
f6ccaed9 PP	142	BT_LOGW("Invalid parameter: index is out of bounds: "
f6ccaed9 PP	143	"index=%" PRIu64 ", count=%" PRId64,
05e21286	144	index, bt_value_array_get_size(attr_obj));
f6ccaed9 PP	145	goto end;
	146	}
	147
da91b29a	148	attr_field_obj =
05e21286	149	bt_value_array_borrow_element_by_index(attr_obj, index);
44e0a4f5	150	if (!attr_field_obj) {
561ad8c1 PP	151	BT_LOGE("Cannot get attributes object's array value's element by index: "
561ad8c1 PP	152	"value-addr=%p, index=%" PRIu64, attr_obj, index);
44e0a4f5 JG	153	goto end;
	154	}
	155
05e21286	156	value_obj = bt_value_array_borrow_element_by_index(
da91b29a	157	attr_field_obj, BT_ATTR_VALUE_INDEX);
561ad8c1 PP	158	if (!value_obj) {
	159	BT_LOGE("Cannot get attribute array value's element by index: "
	160	"value-addr=%p, index=%" PRIu64, attr_field_obj,
50842bdc	161	(uint64_t) BT_ATTR_VALUE_INDEX);
561ad8c1	162	}
44e0a4f5 JG	163
44e0a4f5 JG	164	end:
44e0a4f5 JG	165	return value_obj;
	166	}
	167
	168	static
05e21286 PP	169	struct bt_value *bt_attributes_borrow_field_by_name(
05e21286 PP	170	struct bt_value attr_obj, const char name)
44e0a4f5	171	{
dcf0cc71 PP	172	uint64_t i;
dcf0cc71 PP	173	int64_t attr_size;
05e21286 PP	174	struct bt_value *value_obj = NULL;
05e21286 PP	175	struct bt_value *attr_field_name_obj = NULL;
44e0a4f5	176
05e21286	177	attr_size = bt_value_array_get_size(attr_obj);
44e0a4f5	178	if (attr_size < 0) {
561ad8c1 PP	179	BT_LOGE("Cannot get array value's size: value-addr=%p",
561ad8c1 PP	180	attr_obj);
44e0a4f5 JG	181	goto error;
	182	}
	183
	184	for (i = 0; i < attr_size; ++i) {
44e0a4f5 JG	185	const char *field_name;
44e0a4f5 JG	186
05e21286	187	value_obj = bt_value_array_borrow_element_by_index(
da91b29a	188	attr_obj, i);
44e0a4f5	189	if (!value_obj) {
561ad8c1 PP	190	BT_LOGE("Cannot get attributes object's array value's element by index: "
561ad8c1 PP	191	"value-addr=%p, index=%" PRIu64, attr_obj, i);
44e0a4f5 JG	192	goto error;
	193	}
	194
da91b29a	195	attr_field_name_obj =
05e21286	196	bt_value_array_borrow_element_by_index(
da91b29a	197	value_obj, BT_ATTR_NAME_INDEX);
44e0a4f5	198	if (!attr_field_name_obj) {
561ad8c1 PP	199	BT_LOGE("Cannot get attribute array value's element by index: "
561ad8c1 PP	200	"value-addr=%p, index=%" PRIu64,
094ff7c0	201	value_obj, (int64_t) BT_ATTR_NAME_INDEX);
44e0a4f5 JG	202	goto error;
	203	}
	204
05e21286	205	field_name = bt_value_string_get(attr_field_name_obj);
44e0a4f5 JG	206
44e0a4f5 JG	207	if (!strcmp(field_name, name)) {
44e0a4f5 JG	208	break;
	209	}
	210
094ff7c0	211	value_obj = NULL;
44e0a4f5 JG	212	}
	213
	214	return value_obj;
	215
	216	error:
094ff7c0	217	value_obj = NULL;
44e0a4f5 JG	218	return value_obj;
	219	}
	220
	221	BT_HIDDEN
05e21286 PP	222	int bt_attributes_set_field_value(struct bt_value *attr_obj,
05e21286 PP	223	const char name, struct bt_value value_obj)
44e0a4f5 JG	224	{
44e0a4f5 JG	225	int ret = 0;
05e21286	226	struct bt_value *attr_field_obj = NULL;
44e0a4f5 JG	227
44e0a4f5 JG	228	if (!attr_obj \|\| !name \|\| !value_obj) {
561ad8c1 PP	229	BT_LOGW("Invalid parameter: attributes object, name, or value object is NULL: "
	230	"attr-value-addr=%p, name-addr=%p, value-addr=%p",
	231	attr_obj, name, value_obj);
44e0a4f5 JG	232	ret = -1;
	233	goto end;
	234	}
	235
094ff7c0	236	attr_field_obj = bt_attributes_borrow_field_by_name(attr_obj, name);
44e0a4f5	237	if (attr_field_obj) {
05e21286	238	ret = bt_value_array_set_element_by_index(
da91b29a	239	attr_field_obj, BT_ATTR_VALUE_INDEX,
05e21286	240	value_obj);
094ff7c0	241	attr_field_obj = NULL;
44e0a4f5 JG	242	goto end;
	243	}
	244
05e21286	245	attr_field_obj = bt_value_array_create();
44e0a4f5	246	if (!attr_field_obj) {
561ad8c1	247	BT_LOGE_STR("Failed to create empty array value.");
44e0a4f5 JG	248	ret = -1;
	249	goto end;
	250	}
	251
05e21286	252	ret = bt_value_array_append_string_element(attr_field_obj,
da91b29a	253	name);
05e21286 PP	254	ret \|= bt_value_array_append_element(attr_field_obj,
05e21286 PP	255	value_obj);
44e0a4f5	256	if (ret) {
561ad8c1 PP	257	BT_LOGE("Cannot append elements to array value: addr=%p",
561ad8c1 PP	258	attr_field_obj);
44e0a4f5 JG	259	goto end;
	260	}
	261
05e21286 PP	262	ret = bt_value_array_append_element(attr_obj,
05e21286 PP	263	attr_field_obj);
561ad8c1 PP	264	if (ret) {
	265	BT_LOGE("Cannot append element to array value: "
	266	"array-value-addr=%p, element-value-addr=%p",
	267	attr_obj, attr_field_obj);
	268	}
44e0a4f5 JG	269
44e0a4f5 JG	270	end:
65300d60	271	bt_object_put_ref(attr_field_obj);
44e0a4f5 JG	272	return ret;
	273	}
	274
	275	BT_HIDDEN
05e21286 PP	276	struct bt_value *bt_attributes_borrow_field_value_by_name(
05e21286 PP	277	struct bt_value attr_obj, const char name)
44e0a4f5	278	{
05e21286 PP	279	struct bt_value *value_obj = NULL;
05e21286 PP	280	struct bt_value *attr_field_obj = NULL;
44e0a4f5 JG	281
44e0a4f5 JG	282	if (!attr_obj \|\| !name) {
561ad8c1 PP	283	BT_LOGW("Invalid parameter: attributes object or name is NULL: "
561ad8c1 PP	284	"value-addr=%p, name-addr=%p", attr_obj, name);
44e0a4f5 JG	285	goto end;
	286	}
	287
094ff7c0	288	attr_field_obj = bt_attributes_borrow_field_by_name(attr_obj, name);
44e0a4f5	289	if (!attr_field_obj) {
561ad8c1 PP	290	BT_LOGD("Cannot find attributes object's field by name: "
561ad8c1 PP	291	"value-addr=%p, name=\"%s\"", attr_obj, name);
44e0a4f5 JG	292	goto end;
	293	}
	294
05e21286	295	value_obj = bt_value_array_borrow_element_by_index(
da91b29a	296	attr_field_obj, BT_ATTR_VALUE_INDEX);
561ad8c1 PP	297	if (!value_obj) {
	298	BT_LOGE("Cannot get attribute array value's element by index: "
	299	"value-addr=%p, index=%" PRIu64, attr_field_obj,
50842bdc	300	(uint64_t) BT_ATTR_VALUE_INDEX);
561ad8c1	301	}
44e0a4f5 JG	302
44e0a4f5 JG	303	end:
44e0a4f5 JG	304	return value_obj;
	305	}
	306
	307	BT_HIDDEN
05e21286	308	int bt_attributes_freeze(const struct bt_value *attr_obj)
44e0a4f5	309	{
dcf0cc71 PP	310	uint64_t i;
dcf0cc71 PP	311	int64_t count;
44e0a4f5 JG	312	int ret = 0;
	313
	314	if (!attr_obj) {
561ad8c1	315	BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
44e0a4f5 JG	316	ret = -1;
	317	goto end;
	318	}
	319
561ad8c1	320	BT_LOGD("Freezing attributes object: value-addr=%p", attr_obj);
05e21286	321	count = bt_value_array_get_size(attr_obj);
f6ccaed9	322	BT_ASSERT(count >= 0);
44e0a4f5 JG	323
44e0a4f5 JG	324	/*
dac5c838 PP	325	* We do not freeze the array value object itself here, since
	326	* internal stuff could need to modify/add attributes. Each
	327	* attribute is frozen one by one.
44e0a4f5 JG	328	*/
44e0a4f5 JG	329	for (i = 0; i < count; ++i) {
05e21286	330	struct bt_value *obj = NULL;
44e0a4f5	331
05e21286 PP	332	obj = bt_attributes_borrow_field_value(
05e21286 PP	333	(void *) attr_obj, i);
44e0a4f5	334	if (!obj) {
561ad8c1 PP	335	BT_LOGE("Cannot get attributes object's field value by index: "
	336	"value-addr=%p, index=%" PRIu64,
	337	attr_obj, i);
44e0a4f5 JG	338	ret = -1;
	339	goto end;
	340	}
	341
05e21286	342	bt_value_freeze(obj);
44e0a4f5 JG	343	}
	344
	345	end:
44e0a4f5 JG	346	return ret;
44e0a4f5 JG	347	}