[babeltrace.git] / src / ctf-writer / attributes.c

/*
 * attributes.c
 *
 * Babeltrace CTF writer - Attributes
 *
 * 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 "CTF-WRITER/ATTRS"
#include "logging.h"

#include "attributes.h"

#include "common/assert.h"
#include "common/macros.h"
#include "compat/string.h"
#include <babeltrace2-ctf-writer/object.h>
#include <inttypes.h>

#include "values.h"

#define BT_CTF_ATTR_NAME_INDEX		0
#define BT_CTF_ATTR_VALUE_INDEX		1

BT_HIDDEN
struct bt_ctf_private_value *bt_ctf_attributes_create(void)
{
	struct bt_ctf_private_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_ctf_private_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_ctf_attributes_destroy(struct bt_ctf_private_value *attr_obj)
{
	BT_LOGD("Destroying attributes object: addr=%p", attr_obj);
	bt_ctf_object_put_ref(attr_obj);
}

BT_HIDDEN
int64_t bt_ctf_attributes_get_count(struct bt_ctf_private_value *attr_obj)
{
	return bt_ctf_value_array_get_length(bt_ctf_private_value_as_value(attr_obj));
}

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

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

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

	attr_field_obj = bt_ctf_private_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;
	}

	attr_field_name_obj =
		bt_ctf_private_value_array_borrow_element_by_index(
			attr_field_obj, BT_CTF_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_CTF_ATTR_NAME_INDEX);
		goto end;
	}

	ret = bt_ctf_value_string_get(
		bt_ctf_private_value_as_value(attr_field_name_obj));

end:
	return ret;
}

BT_HIDDEN
struct bt_ctf_private_value *bt_ctf_attributes_borrow_field_value(struct bt_ctf_private_value *attr_obj,
		uint64_t index)
{
	struct bt_ctf_private_value *value_obj = NULL;
	struct bt_ctf_private_value *attr_field_obj = NULL;

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

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

	attr_field_obj = bt_ctf_private_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_ctf_private_value_array_borrow_element_by_index(attr_field_obj,
		BT_CTF_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_CTF_ATTR_VALUE_INDEX);
	}

end:
	return value_obj;
}

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

	attr_size = bt_ctf_value_array_get_length(bt_ctf_private_value_as_value(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_ctf_private_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_ctf_private_value_array_borrow_element_by_index(value_obj,
			BT_CTF_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_CTF_ATTR_NAME_INDEX);
			goto error;
		}

		field_name = bt_ctf_value_string_get(
			bt_ctf_private_value_as_value(attr_field_name_obj));

		if (strcmp(field_name, name) == 0) {
			break;
		}

		value_obj = NULL;
	}

	return value_obj;

error:
	value_obj = NULL;
	return value_obj;
}

BT_HIDDEN
int bt_ctf_attributes_set_field_value(struct bt_ctf_private_value *attr_obj,
		const char *name, struct bt_ctf_private_value *value_obj)
{
	int ret = 0;
	struct bt_ctf_private_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_ctf_attributes_borrow_field_by_name(attr_obj, name);
	if (attr_field_obj) {
		ret = bt_ctf_private_value_array_set_element_by_index(
			attr_field_obj, BT_CTF_ATTR_VALUE_INDEX,
			bt_ctf_private_value_as_value(value_obj));
		attr_field_obj = NULL;
		goto end;
	}

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

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

	ret = bt_ctf_private_value_array_append_element(attr_obj,
		bt_ctf_private_value_as_value(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_ctf_object_put_ref(attr_field_obj);
	return ret;
}

BT_HIDDEN
struct bt_ctf_private_value *bt_ctf_attributes_borrow_field_value_by_name(
		struct bt_ctf_private_value *attr_obj, const char *name)
{
	struct bt_ctf_private_value *value_obj = NULL;
	struct bt_ctf_private_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_ctf_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_ctf_private_value_array_borrow_element_by_index(attr_field_obj,
		BT_CTF_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_CTF_ATTR_VALUE_INDEX);
	}

end:
	return value_obj;
}

BT_HIDDEN
int bt_ctf_attributes_freeze(struct bt_ctf_private_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_ctf_value_array_get_length(bt_ctf_private_value_as_value(attr_obj));
	BT_ASSERT_DBG(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_ctf_private_value *obj = NULL;

		obj = bt_ctf_attributes_borrow_field_value(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_ctf_value_freeze(bt_ctf_private_value_as_value(obj));
	}

end:
	return ret;
}
Commit	Line	Data
086dc475 PP	1	/*
	2	* attributes.c
	3	*
	4	* Babeltrace CTF writer - Attributes
	5	*
	6	* Copyright (c) 2015 EfficiOS Inc. and Linux Foundation
	7	* Copyright (c) 2015 Philippe Proulx <pproulx@efficios.com>
	8	*
	9	* Permission is hereby granted, free of charge, to any person obtaining a copy
	10	* of this software and associated documentation files (the "Software"), to deal
	11	* in the Software without restriction, including without limitation the rights
	12	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	13	* copies of the Software, and to permit persons to whom the Software is
	14	* furnished to do so, subject to the following conditions:
	15	*
	16	* The above copyright notice and this permission notice shall be included in
	17	* all copies or substantial portions of the Software.
	18	*
	19	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	20	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	21	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	22	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	23	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	24	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	25	* SOFTWARE.
	26	*/
	27
b03487ab	28	#define BT_LOG_TAG "CTF-WRITER/ATTRS"
bf436657	29	#include "logging.h"
086dc475	30
f3847c75 SM	31	#include "attributes.h"
f3847c75 SM	32
57952005	33	#include "common/assert.h"
85e7137b	34	#include "common/macros.h"
57952005	35	#include "compat/string.h"
3996bc53	36	#include <babeltrace2-ctf-writer/object.h>
086dc475 PP	37	#include <inttypes.h>
086dc475 PP	38
57952005 MJ	39	#include "values.h"
57952005 MJ	40
086dc475 PP	41	#define BT_CTF_ATTR_NAME_INDEX 0
	42	#define BT_CTF_ATTR_VALUE_INDEX 1
	43
	44	BT_HIDDEN
c2606e2f	45	struct bt_ctf_private_value *bt_ctf_attributes_create(void)
086dc475	46	{
c2606e2f	47	struct bt_ctf_private_value *attr_obj;
086dc475 PP	48
	49	/*
	50	* Attributes: array value object of array value objects, each one
	51	* containing two entries: a string value object (attributes
	52	* field name), and a value object (attributes field value).
	53	*
	54	* Example (JSON representation):
	55	*
	56	* [
	57	* ["hostname", "eeppdesk"],
	58	* ["sysname", "Linux"],
	59	* ["tracer_major", 2],
	60	* ["tracer_minor", 5]
	61	* ]
	62	*/
	63	BT_LOGD_STR("Creating attributes object.");
c2606e2f	64	attr_obj = bt_ctf_private_value_array_create();
086dc475 PP	65	if (!attr_obj) {
	66	BT_LOGE_STR("Failed to create array value.");
	67	} else {
	68	BT_LOGD("Created attributes object: addr=%p",
	69	attr_obj);
	70	}
	71
	72	return attr_obj;
	73	}
	74
	75	BT_HIDDEN
c2606e2f	76	void bt_ctf_attributes_destroy(struct bt_ctf_private_value *attr_obj)
086dc475 PP	77	{
086dc475 PP	78	BT_LOGD("Destroying attributes object: addr=%p", attr_obj);
c2606e2f	79	bt_ctf_object_put_ref(attr_obj);
086dc475 PP	80	}
	81
	82	BT_HIDDEN
c2606e2f	83	int64_t bt_ctf_attributes_get_count(struct bt_ctf_private_value *attr_obj)
086dc475	84	{
1270d0e9	85	return bt_ctf_value_array_get_length(bt_ctf_private_value_as_value(attr_obj));
086dc475 PP	86	}
	87
	88	BT_HIDDEN
c2606e2f	89	const char bt_ctf_attributes_get_field_name(struct bt_ctf_private_value attr_obj,
086dc475 PP	90	uint64_t index)
086dc475 PP	91	{
086dc475	92	const char *ret = NULL;
c2606e2f PP	93	struct bt_ctf_private_value *attr_field_obj = NULL;
c2606e2f PP	94	struct bt_ctf_private_value *attr_field_name_obj = NULL;
086dc475 PP	95
	96	if (!attr_obj) {
	97	BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
	98	goto end;
	99	}
	100
1270d0e9	101	if (index >= bt_ctf_value_array_get_length(bt_ctf_private_value_as_value(attr_obj))) {
086dc475 PP	102	BT_LOGW("Invalid parameter: index is out of bounds: "
086dc475 PP	103	"index=%" PRIu64 ", count=%" PRId64,
1270d0e9	104	index, bt_ctf_value_array_get_length(bt_ctf_private_value_as_value(attr_obj)));
086dc475 PP	105	goto end;
	106	}
	107
c2606e2f	108	attr_field_obj = bt_ctf_private_value_array_borrow_element_by_index(
17582c6d	109	attr_obj, index);
086dc475 PP	110	if (!attr_field_obj) {
	111	BT_LOGE("Cannot get attributes object's array value's element by index: "
	112	"value-addr=%p, index=%" PRIu64, attr_obj, index);
	113	goto end;
	114	}
	115
17582c6d	116	attr_field_name_obj =
c2606e2f	117	bt_ctf_private_value_array_borrow_element_by_index(
17582c6d	118	attr_field_obj, BT_CTF_ATTR_NAME_INDEX);
086dc475 PP	119	if (!attr_field_name_obj) {
	120	BT_LOGE("Cannot get attribute array value's element by index: "
	121	"value-addr=%p, index=%" PRIu64, attr_field_obj,
	122	(uint64_t) BT_CTF_ATTR_NAME_INDEX);
	123	goto end;
	124	}
	125
c2606e2f PP	126	ret = bt_ctf_value_string_get(
c2606e2f PP	127	bt_ctf_private_value_as_value(attr_field_name_obj));
086dc475 PP	128
	129	end:
	130	return ret;
	131	}
	132
	133	BT_HIDDEN
c2606e2f	134	struct bt_ctf_private_value bt_ctf_attributes_borrow_field_value(struct bt_ctf_private_value attr_obj,
086dc475 PP	135	uint64_t index)
086dc475 PP	136	{
c2606e2f PP	137	struct bt_ctf_private_value *value_obj = NULL;
c2606e2f PP	138	struct bt_ctf_private_value *attr_field_obj = NULL;
086dc475 PP	139
	140	if (!attr_obj) {
	141	BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
	142	goto end;
	143	}
	144
1270d0e9	145	if (index >= bt_ctf_value_array_get_length(bt_ctf_private_value_as_value(attr_obj))) {
086dc475 PP	146	BT_LOGW("Invalid parameter: index is out of bounds: "
086dc475 PP	147	"index=%" PRIu64 ", count=%" PRId64,
1270d0e9	148	index, bt_ctf_value_array_get_length(bt_ctf_private_value_as_value(attr_obj)));
086dc475 PP	149	goto end;
	150	}
	151
c2606e2f	152	attr_field_obj = bt_ctf_private_value_array_borrow_element_by_index(
17582c6d	153	attr_obj, index);
086dc475 PP	154	if (!attr_field_obj) {
	155	BT_LOGE("Cannot get attributes object's array value's element by index: "
	156	"value-addr=%p, index=%" PRIu64, attr_obj, index);
	157	goto end;
	158	}
	159
c2606e2f	160	value_obj = bt_ctf_private_value_array_borrow_element_by_index(attr_field_obj,
086dc475 PP	161	BT_CTF_ATTR_VALUE_INDEX);
	162	if (!value_obj) {
	163	BT_LOGE("Cannot get attribute array value's element by index: "
	164	"value-addr=%p, index=%" PRIu64, attr_field_obj,
	165	(uint64_t) BT_CTF_ATTR_VALUE_INDEX);
	166	}
	167
	168	end:
	169	return value_obj;
	170	}
	171
	172	static
c2606e2f PP	173	struct bt_ctf_private_value *bt_ctf_attributes_borrow_field_by_name(
c2606e2f PP	174	struct bt_ctf_private_value attr_obj, const char name)
086dc475 PP	175	{
	176	uint64_t i;
	177	int64_t attr_size;
c2606e2f PP	178	struct bt_ctf_private_value *value_obj = NULL;
c2606e2f PP	179	struct bt_ctf_private_value *attr_field_name_obj = NULL;
086dc475	180
1270d0e9	181	attr_size = bt_ctf_value_array_get_length(bt_ctf_private_value_as_value(attr_obj));
086dc475 PP	182	if (attr_size < 0) {
	183	BT_LOGE("Cannot get array value's size: value-addr=%p",
	184	attr_obj);
	185	goto error;
	186	}
	187
	188	for (i = 0; i < attr_size; ++i) {
086dc475 PP	189	const char *field_name;
086dc475 PP	190
c2606e2f	191	value_obj = bt_ctf_private_value_array_borrow_element_by_index(attr_obj, i);
086dc475 PP	192	if (!value_obj) {
	193	BT_LOGE("Cannot get attributes object's array value's element by index: "
	194	"value-addr=%p, index=%" PRIu64, attr_obj, i);
	195	goto error;
	196	}
	197
c2606e2f	198	attr_field_name_obj = bt_ctf_private_value_array_borrow_element_by_index(value_obj,
086dc475 PP	199	BT_CTF_ATTR_NAME_INDEX);
	200	if (!attr_field_name_obj) {
	201	BT_LOGE("Cannot get attribute array value's element by index: "
	202	"value-addr=%p, index=%" PRIu64,
	203	value_obj, (int64_t) BT_CTF_ATTR_NAME_INDEX);
	204	goto error;
	205	}
	206
c2606e2f PP	207	field_name = bt_ctf_value_string_get(
c2606e2f PP	208	bt_ctf_private_value_as_value(attr_field_name_obj));
086dc475	209
acfa8112	210	if (strcmp(field_name, name) == 0) {
086dc475 PP	211	break;
	212	}
	213
	214	value_obj = NULL;
	215	}
	216
	217	return value_obj;
	218
	219	error:
	220	value_obj = NULL;
	221	return value_obj;
	222	}
	223
	224	BT_HIDDEN
c2606e2f PP	225	int bt_ctf_attributes_set_field_value(struct bt_ctf_private_value *attr_obj,
c2606e2f PP	226	const char name, struct bt_ctf_private_value value_obj)
086dc475 PP	227	{
086dc475 PP	228	int ret = 0;
c2606e2f	229	struct bt_ctf_private_value *attr_field_obj = NULL;
086dc475 PP	230
	231	if (!attr_obj \|\| !name \|\| !value_obj) {
	232	BT_LOGW("Invalid parameter: attributes object, name, or value object is NULL: "
	233	"attr-value-addr=%p, name-addr=%p, value-addr=%p",
	234	attr_obj, name, value_obj);
	235	ret = -1;
	236	goto end;
	237	}
	238
	239	attr_field_obj = bt_ctf_attributes_borrow_field_by_name(attr_obj, name);
	240	if (attr_field_obj) {
c2606e2f	241	ret = bt_ctf_private_value_array_set_element_by_index(
17582c6d	242	attr_field_obj, BT_CTF_ATTR_VALUE_INDEX,
c2606e2f	243	bt_ctf_private_value_as_value(value_obj));
086dc475 PP	244	attr_field_obj = NULL;
	245	goto end;
	246	}
	247
c2606e2f	248	attr_field_obj = bt_ctf_private_value_array_create();
086dc475 PP	249	if (!attr_field_obj) {
	250	BT_LOGE_STR("Failed to create empty array value.");
	251	ret = -1;
	252	goto end;
	253	}
	254
c2606e2f PP	255	ret = bt_ctf_private_value_array_append_string_element(attr_field_obj, name);
	256	ret \|= bt_ctf_private_value_array_append_element(attr_field_obj,
	257	bt_ctf_private_value_as_value(value_obj));
086dc475 PP	258	if (ret) {
	259	BT_LOGE("Cannot append elements to array value: addr=%p",
	260	attr_field_obj);
	261	goto end;
	262	}
	263
c2606e2f PP	264	ret = bt_ctf_private_value_array_append_element(attr_obj,
c2606e2f PP	265	bt_ctf_private_value_as_value(attr_field_obj));
086dc475 PP	266	if (ret) {
	267	BT_LOGE("Cannot append element to array value: "
	268	"array-value-addr=%p, element-value-addr=%p",
	269	attr_obj, attr_field_obj);
	270	}
	271
	272	end:
c2606e2f	273	bt_ctf_object_put_ref(attr_field_obj);
086dc475 PP	274	return ret;
	275	}
	276
	277	BT_HIDDEN
c2606e2f PP	278	struct bt_ctf_private_value *bt_ctf_attributes_borrow_field_value_by_name(
c2606e2f PP	279	struct bt_ctf_private_value attr_obj, const char name)
086dc475	280	{
c2606e2f PP	281	struct bt_ctf_private_value *value_obj = NULL;
c2606e2f PP	282	struct bt_ctf_private_value *attr_field_obj = NULL;
086dc475 PP	283
	284	if (!attr_obj \|\| !name) {
	285	BT_LOGW("Invalid parameter: attributes object or name is NULL: "
	286	"value-addr=%p, name-addr=%p", attr_obj, name);
	287	goto end;
	288	}
	289
	290	attr_field_obj = bt_ctf_attributes_borrow_field_by_name(attr_obj, name);
	291	if (!attr_field_obj) {
	292	BT_LOGD("Cannot find attributes object's field by name: "
	293	"value-addr=%p, name=\"%s\"", attr_obj, name);
	294	goto end;
	295	}
	296
c2606e2f	297	value_obj = bt_ctf_private_value_array_borrow_element_by_index(attr_field_obj,
086dc475 PP	298	BT_CTF_ATTR_VALUE_INDEX);
	299	if (!value_obj) {
	300	BT_LOGE("Cannot get attribute array value's element by index: "
	301	"value-addr=%p, index=%" PRIu64, attr_field_obj,
	302	(uint64_t) BT_CTF_ATTR_VALUE_INDEX);
	303	}
	304
	305	end:
	306	return value_obj;
	307	}
	308
	309	BT_HIDDEN
c2606e2f	310	int bt_ctf_attributes_freeze(struct bt_ctf_private_value *attr_obj)
086dc475 PP	311	{
	312	uint64_t i;
	313	int64_t count;
	314	int ret = 0;
	315
	316	if (!attr_obj) {
	317	BT_LOGW_STR("Invalid parameter: attributes object is NULL.");
	318	ret = -1;
	319	goto end;
	320	}
	321
	322	BT_LOGD("Freezing attributes object: value-addr=%p", attr_obj);
1270d0e9	323	count = bt_ctf_value_array_get_length(bt_ctf_private_value_as_value(attr_obj));
ec4a3354	324	BT_ASSERT_DBG(count >= 0);
086dc475 PP	325
	326	/*
	327	* We do not freeze the array value object itself here, since
	328	* internal stuff could need to modify/add attributes. Each
	329	* attribute is frozen one by one.
	330	*/
	331	for (i = 0; i < count; ++i) {
c2606e2f	332	struct bt_ctf_private_value *obj = NULL;
086dc475 PP	333
	334	obj = bt_ctf_attributes_borrow_field_value(attr_obj, i);
	335	if (!obj) {
	336	BT_LOGE("Cannot get attributes object's field value by index: "
	337	"value-addr=%p, index=%" PRIu64,
	338	attr_obj, i);
	339	ret = -1;
	340	goto end;
	341	}
	342
c2606e2f	343	bt_ctf_value_freeze(bt_ctf_private_value_as_value(obj));
086dc475 PP	344	}
	345
	346	end:
	347	return ret;
	348	}