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

/*
 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
 * Copyright 2014 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.
 */

#define BT_LOG_TAG "TRACE"
#include <babeltrace/lib-logging-internal.h>

#include <babeltrace/assert-pre-internal.h>
#include <babeltrace/trace-ir/trace-class.h>
#include <babeltrace/trace-ir/trace-class-const.h>
#include <babeltrace/trace-ir/trace-internal.h>
#include <babeltrace/trace-ir/clock-class-internal.h>
#include <babeltrace/trace-ir/stream-internal.h>
#include <babeltrace/trace-ir/stream-class-internal.h>
#include <babeltrace/trace-ir/event-internal.h>
#include <babeltrace/trace-ir/event-class.h>
#include <babeltrace/trace-ir/event-class-internal.h>
#include <babeltrace/ctf-writer/functor-internal.h>
#include <babeltrace/ctf-writer/clock-internal.h>
#include <babeltrace/trace-ir/field-wrapper-internal.h>
#include <babeltrace/trace-ir/field-class-internal.h>
#include <babeltrace/trace-ir/attributes-internal.h>
#include <babeltrace/trace-ir/utils-internal.h>
#include <babeltrace/trace-ir/resolve-field-path-internal.h>
#include <babeltrace/compiler-internal.h>
#include <babeltrace/value.h>
#include <babeltrace/value-const.h>
#include <babeltrace/value-internal.h>
#include <babeltrace/types.h>
#include <babeltrace/endian-internal.h>
#include <babeltrace/assert-internal.h>
#include <babeltrace/compat/glib-internal.h>
#include <inttypes.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>

#define BT_ASSERT_PRE_TRACE_CLASS_HOT(_tc)				\
	BT_ASSERT_PRE_HOT((_tc), "Trace class", ": %!+T", (_tc))

static
void destroy_trace_class(struct bt_object *obj)
{
	struct bt_trace_class *tc = (void *) obj;

	BT_LIB_LOGD("Destroying trace class object: %!+T", tc);

	if (tc->environment) {
		BT_LOGD_STR("Destroying environment attributes.");
		bt_attributes_destroy(tc->environment);
		tc->environment = NULL;
	}

	if (tc->name.str) {
		g_string_free(tc->name.str, TRUE);
		tc->name.str = NULL;
		tc->name.value = NULL;
	}

	if (tc->stream_classes) {
		BT_LOGD_STR("Destroying stream classes.");
		g_ptr_array_free(tc->stream_classes, TRUE);
		tc->stream_classes = NULL;
	}

	g_free(tc);
}

struct bt_trace_class *bt_trace_class_create(bt_self_component *self_comp)
{
	struct bt_trace_class *tc = NULL;

	BT_ASSERT_PRE_NON_NULL(self_comp, "Self component");
	BT_LOGD_STR("Creating default trace class object.");
	tc = g_new0(struct bt_trace_class, 1);
	if (!tc) {
		BT_LOGE_STR("Failed to allocate one trace class.");
		goto error;
	}

	bt_object_init_shared_with_parent(&tc->base, destroy_trace_class);

	tc->stream_classes = g_ptr_array_new_with_free_func(
		(GDestroyNotify) bt_object_try_spec_release);
	if (!tc->stream_classes) {
		BT_LOGE_STR("Failed to allocate one GPtrArray.");
		goto error;
	}

	tc->name.str = g_string_new(NULL);
	if (!tc->name.str) {
		BT_LOGE_STR("Failed to allocate one GString.");
		goto error;
	}

	tc->environment = bt_attributes_create();
	if (!tc->environment) {
		BT_LOGE_STR("Cannot create empty attributes object.");
		goto error;
	}

	tc->assigns_automatic_stream_class_id = true;
	BT_LIB_LOGD("Created trace class object: %!+T", tc);
	goto end;

error:
	BT_OBJECT_PUT_REF_AND_RESET(tc);

end:
	return tc;
}

const char *bt_trace_class_get_name(const struct bt_trace_class *tc)
{
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	return tc->name.value;
}

enum bt_trace_class_status bt_trace_class_set_name(
		struct bt_trace_class *tc, const char *name)
{
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	BT_ASSERT_PRE_NON_NULL(name, "Name");
	BT_ASSERT_PRE_TRACE_CLASS_HOT(tc);
	g_string_assign(tc->name.str, name);
	tc->name.value = tc->name.str->str;
	BT_LIB_LOGV("Set trace class's name: %!+T", tc);
	return BT_TRACE_CLASS_STATUS_OK;
}

bt_uuid bt_trace_class_get_uuid(const struct bt_trace_class *tc)
{
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	return tc->uuid.value;
}

void bt_trace_class_set_uuid(struct bt_trace_class *tc, bt_uuid uuid)
{
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	BT_ASSERT_PRE_NON_NULL(uuid, "UUID");
	BT_ASSERT_PRE_TRACE_CLASS_HOT(tc);
	memcpy(tc->uuid.uuid, uuid, BABELTRACE_UUID_LEN);
	tc->uuid.value = tc->uuid.uuid;
	BT_LIB_LOGV("Set trace class's UUID: %!+T", tc);
}

BT_ASSERT_FUNC
static
bool trace_has_environment_entry(const struct bt_trace_class *tc, const char *name)
{
	BT_ASSERT(tc);

	return bt_attributes_borrow_field_value_by_name(
		tc->environment, name) != NULL;
}

static
enum bt_trace_class_status set_environment_entry(struct bt_trace_class *tc,
		const char *name, struct bt_value *value)
{
	int ret;

	BT_ASSERT(tc);
	BT_ASSERT(name);
	BT_ASSERT(value);
	BT_ASSERT_PRE(!tc->frozen ||
		!trace_has_environment_entry(tc, name),
		"Trace class is frozen: cannot replace environment entry: "
		"%![tc-]+T, entry-name=\"%s\"", tc, name);
	ret = bt_attributes_set_field_value(tc->environment, name,
		value);
	if (ret) {
		ret = BT_TRACE_CLASS_STATUS_NOMEM;
		BT_LIB_LOGE("Cannot set trace class's environment entry: "
			"%![tc-]+T, entry-name=\"%s\"", tc, name);
	} else {
		bt_value_freeze(value);
		BT_LIB_LOGV("Set trace class's environment entry: "
			"%![tc-]+T, entry-name=\"%s\"", tc, name);
	}

	return ret;
}

enum bt_trace_class_status bt_trace_class_set_environment_entry_string(
		struct bt_trace_class *tc, const char *name, const char *value)
{
	int ret;
	struct bt_value *value_obj;
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	BT_ASSERT_PRE_NON_NULL(name, "Name");
	BT_ASSERT_PRE_NON_NULL(value, "Value");
	value_obj = bt_value_string_create_init(value);
	if (!value_obj) {
		BT_LOGE_STR("Cannot create a string value object.");
		ret = -1;
		goto end;
	}

	/* set_environment_entry() logs errors */
	ret = set_environment_entry(tc, name, value_obj);

end:
	bt_object_put_ref(value_obj);
	return ret;
}

enum bt_trace_class_status bt_trace_class_set_environment_entry_integer(
		struct bt_trace_class *tc, const char *name, int64_t value)
{
	int ret;
	struct bt_value *value_obj;
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	BT_ASSERT_PRE_NON_NULL(name, "Name");
	value_obj = bt_value_integer_create_init(value);
	if (!value_obj) {
		BT_LOGE_STR("Cannot create an integer value object.");
		ret = BT_TRACE_CLASS_STATUS_NOMEM;
		goto end;
	}

	/* set_environment_entry() logs errors */
	ret = set_environment_entry(tc, name, value_obj);

end:
	bt_object_put_ref(value_obj);
	return ret;
}

uint64_t bt_trace_class_get_environment_entry_count(const struct bt_trace_class *tc)
{
	int64_t ret;

	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	ret = bt_attributes_get_count(tc->environment);
	BT_ASSERT(ret >= 0);
	return (uint64_t) ret;
}

void bt_trace_class_borrow_environment_entry_by_index_const(
		const struct bt_trace_class *tc, uint64_t index,
		const char **name, const struct bt_value **value)
{
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	BT_ASSERT_PRE_NON_NULL(name, "Name");
	BT_ASSERT_PRE_NON_NULL(value, "Value");
	BT_ASSERT_PRE_VALID_INDEX(index,
		bt_attributes_get_count(tc->environment));
	*value = bt_attributes_borrow_field_value(tc->environment, index);
	BT_ASSERT(*value);
	*name = bt_attributes_get_field_name(tc->environment, index);
	BT_ASSERT(*name);
}

const struct bt_value *bt_trace_class_borrow_environment_entry_value_by_name_const(
		const struct bt_trace_class *tc, const char *name)
{
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	BT_ASSERT_PRE_NON_NULL(name, "Name");
	return bt_attributes_borrow_field_value_by_name(tc->environment,
		name);
}

uint64_t bt_trace_class_get_stream_class_count(const struct bt_trace_class *tc)
{
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	return (uint64_t) tc->stream_classes->len;
}

struct bt_stream_class *bt_trace_class_borrow_stream_class_by_index(
		struct bt_trace_class *tc, uint64_t index)
{
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	BT_ASSERT_PRE_VALID_INDEX(index, tc->stream_classes->len);
	return g_ptr_array_index(tc->stream_classes, index);
}

const struct bt_stream_class *
bt_trace_class_borrow_stream_class_by_index_const(
		const struct bt_trace_class *tc, uint64_t index)
{
	return bt_trace_class_borrow_stream_class_by_index(
		(void *) tc, index);
}

struct bt_stream_class *bt_trace_class_borrow_stream_class_by_id(
		struct bt_trace_class *tc, uint64_t id)
{
	struct bt_stream_class *stream_class = NULL;
	uint64_t i;

	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");

	for (i = 0; i < tc->stream_classes->len; i++) {
		struct bt_stream_class *stream_class_candidate =
			g_ptr_array_index(tc->stream_classes, i);

		if (stream_class_candidate->id == id) {
			stream_class = stream_class_candidate;
			goto end;
		}
	}

end:
	return stream_class;
}

const struct bt_stream_class *
bt_trace_class_borrow_stream_class_by_id_const(
		const struct bt_trace_class *tc, uint64_t id)
{
	return bt_trace_class_borrow_stream_class_by_id((void *) tc, id);
}

BT_HIDDEN
void _bt_trace_class_freeze(const struct bt_trace_class *tc)
{
	BT_ASSERT(tc);
	BT_LIB_LOGD("Freezing trace class: %!+T", tc);
	((struct bt_trace_class *) tc)->frozen = true;
}

bt_bool bt_trace_class_assigns_automatic_stream_class_id(const struct bt_trace_class *tc)
{
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	return (bt_bool) tc->assigns_automatic_stream_class_id;
}

void bt_trace_class_set_assigns_automatic_stream_class_id(struct bt_trace_class *tc,
		bt_bool value)
{
	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	BT_ASSERT_PRE_TRACE_CLASS_HOT(tc);
	tc->assigns_automatic_stream_class_id = (bool) value;
	BT_LIB_LOGV("Set trace class's automatic stream class ID "
		"assignment property: %!+T", tc);
}

void bt_trace_class_get_ref(const struct bt_trace_class *trace_class)
{
	bt_object_get_ref(trace_class);
}

void bt_trace_class_put_ref(const struct bt_trace_class *trace_class)
{
	bt_object_put_ref(trace_class);
}
Commit	Line	Data
862ca4ed	1	/*
e2f7325d	2	* Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
862ca4ed PP	3	* Copyright 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
862ca4ed PP	4	*
862ca4ed PP	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
	24	#define BT_LOG_TAG "TRACE"
	25	#include <babeltrace/lib-logging-internal.h>
	26
	27	#include <babeltrace/assert-pre-internal.h>
	28	#include <babeltrace/trace-ir/trace-class.h>
	29	#include <babeltrace/trace-ir/trace-class-const.h>
	30	#include <babeltrace/trace-ir/trace-internal.h>
	31	#include <babeltrace/trace-ir/clock-class-internal.h>
	32	#include <babeltrace/trace-ir/stream-internal.h>
	33	#include <babeltrace/trace-ir/stream-class-internal.h>
	34	#include <babeltrace/trace-ir/event-internal.h>
	35	#include <babeltrace/trace-ir/event-class.h>
	36	#include <babeltrace/trace-ir/event-class-internal.h>
	37	#include <babeltrace/ctf-writer/functor-internal.h>
	38	#include <babeltrace/ctf-writer/clock-internal.h>
	39	#include <babeltrace/trace-ir/field-wrapper-internal.h>
c6bd8523	40	#include <babeltrace/trace-ir/field-class-internal.h>
862ca4ed PP	41	#include <babeltrace/trace-ir/attributes-internal.h>
	42	#include <babeltrace/trace-ir/utils-internal.h>
	43	#include <babeltrace/trace-ir/resolve-field-path-internal.h>
	44	#include <babeltrace/compiler-internal.h>
c6bd8523 PP	45	#include <babeltrace/value.h>
	46	#include <babeltrace/value-const.h>
	47	#include <babeltrace/value-internal.h>
862ca4ed PP	48	#include <babeltrace/types.h>
	49	#include <babeltrace/endian-internal.h>
	50	#include <babeltrace/assert-internal.h>
	51	#include <babeltrace/compat/glib-internal.h>
	52	#include <inttypes.h>
	53	#include <stdint.h>
	54	#include <string.h>
	55	#include <stdlib.h>
	56
	57	#define BT_ASSERT_PRE_TRACE_CLASS_HOT(_tc) \
	58	BT_ASSERT_PRE_HOT((_tc), "Trace class", ": %!+T", (_tc))
	59
	60	static
	61	void destroy_trace_class(struct bt_object *obj)
	62	{
	63	struct bt_trace_class tc = (void ) obj;
	64
	65	BT_LIB_LOGD("Destroying trace class object: %!+T", tc);
862ca4ed PP	66
	67	if (tc->environment) {
	68	BT_LOGD_STR("Destroying environment attributes.");
	69	bt_attributes_destroy(tc->environment);
	70	tc->environment = NULL;
	71	}
	72
	73	if (tc->name.str) {
	74	g_string_free(tc->name.str, TRUE);
	75	tc->name.str = NULL;
	76	tc->name.value = NULL;
	77	}
	78
	79	if (tc->stream_classes) {
	80	BT_LOGD_STR("Destroying stream classes.");
	81	g_ptr_array_free(tc->stream_classes, TRUE);
	82	tc->stream_classes = NULL;
	83	}
	84
862ca4ed PP	85	g_free(tc);
	86	}
	87
41693723	88	struct bt_trace_class bt_trace_class_create(bt_self_component self_comp)
862ca4ed PP	89	{
862ca4ed PP	90	struct bt_trace_class *tc = NULL;
862ca4ed	91
41693723	92	BT_ASSERT_PRE_NON_NULL(self_comp, "Self component");
862ca4ed PP	93	BT_LOGD_STR("Creating default trace class object.");
	94	tc = g_new0(struct bt_trace_class, 1);
	95	if (!tc) {
	96	BT_LOGE_STR("Failed to allocate one trace class.");
	97	goto error;
	98	}
	99
	100	bt_object_init_shared_with_parent(&tc->base, destroy_trace_class);
	101
	102	tc->stream_classes = g_ptr_array_new_with_free_func(
	103	(GDestroyNotify) bt_object_try_spec_release);
	104	if (!tc->stream_classes) {
	105	BT_LOGE_STR("Failed to allocate one GPtrArray.");
	106	goto error;
	107	}
	108
	109	tc->name.str = g_string_new(NULL);
	110	if (!tc->name.str) {
	111	BT_LOGE_STR("Failed to allocate one GString.");
	112	goto error;
	113	}
	114
	115	tc->environment = bt_attributes_create();
	116	if (!tc->environment) {
	117	BT_LOGE_STR("Cannot create empty attributes object.");
	118	goto error;
	119	}
	120
	121	tc->assigns_automatic_stream_class_id = true;
862ca4ed PP	122	BT_LIB_LOGD("Created trace class object: %!+T", tc);
	123	goto end;
	124
	125	error:
	126	BT_OBJECT_PUT_REF_AND_RESET(tc);
	127
	128	end:
	129	return tc;
	130	}
	131
	132	const char bt_trace_class_get_name(const struct bt_trace_class tc)
	133	{
	134	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	135	return tc->name.value;
	136	}
	137
a1ed915c PP	138	enum bt_trace_class_status bt_trace_class_set_name(
a1ed915c PP	139	struct bt_trace_class tc, const char name)
862ca4ed PP	140	{
	141	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	142	BT_ASSERT_PRE_NON_NULL(name, "Name");
	143	BT_ASSERT_PRE_TRACE_CLASS_HOT(tc);
	144	g_string_assign(tc->name.str, name);
	145	tc->name.value = tc->name.str->str;
	146	BT_LIB_LOGV("Set trace class's name: %!+T", tc);
a1ed915c	147	return BT_TRACE_CLASS_STATUS_OK;
862ca4ed PP	148	}
	149
	150	bt_uuid bt_trace_class_get_uuid(const struct bt_trace_class *tc)
	151	{
	152	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	153	return tc->uuid.value;
	154	}
	155
	156	void bt_trace_class_set_uuid(struct bt_trace_class *tc, bt_uuid uuid)
	157	{
	158	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	159	BT_ASSERT_PRE_NON_NULL(uuid, "UUID");
	160	BT_ASSERT_PRE_TRACE_CLASS_HOT(tc);
	161	memcpy(tc->uuid.uuid, uuid, BABELTRACE_UUID_LEN);
	162	tc->uuid.value = tc->uuid.uuid;
	163	BT_LIB_LOGV("Set trace class's UUID: %!+T", tc);
	164	}
	165
	166	BT_ASSERT_FUNC
	167	static
	168	bool trace_has_environment_entry(const struct bt_trace_class tc, const char name)
	169	{
	170	BT_ASSERT(tc);
	171
	172	return bt_attributes_borrow_field_value_by_name(
	173	tc->environment, name) != NULL;
	174	}
	175
	176	static
a1ed915c PP	177	enum bt_trace_class_status set_environment_entry(struct bt_trace_class *tc,
a1ed915c PP	178	const char name, struct bt_value value)
862ca4ed PP	179	{
	180	int ret;
	181
	182	BT_ASSERT(tc);
	183	BT_ASSERT(name);
	184	BT_ASSERT(value);
	185	BT_ASSERT_PRE(!tc->frozen \|\|
	186	!trace_has_environment_entry(tc, name),
	187	"Trace class is frozen: cannot replace environment entry: "
	188	"%![tc-]+T, entry-name=\"%s\"", tc, name);
	189	ret = bt_attributes_set_field_value(tc->environment, name,
	190	value);
862ca4ed	191	if (ret) {
a1ed915c	192	ret = BT_TRACE_CLASS_STATUS_NOMEM;
862ca4ed PP	193	BT_LIB_LOGE("Cannot set trace class's environment entry: "
	194	"%![tc-]+T, entry-name=\"%s\"", tc, name);
	195	} else {
a1ed915c	196	bt_value_freeze(value);
862ca4ed PP	197	BT_LIB_LOGV("Set trace class's environment entry: "
	198	"%![tc-]+T, entry-name=\"%s\"", tc, name);
	199	}
	200
	201	return ret;
	202	}
	203
a1ed915c	204	enum bt_trace_class_status bt_trace_class_set_environment_entry_string(
862ca4ed PP	205	struct bt_trace_class tc, const char name, const char *value)
	206	{
	207	int ret;
	208	struct bt_value *value_obj;
	209	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	210	BT_ASSERT_PRE_NON_NULL(name, "Name");
	211	BT_ASSERT_PRE_NON_NULL(value, "Value");
	212	value_obj = bt_value_string_create_init(value);
	213	if (!value_obj) {
	214	BT_LOGE_STR("Cannot create a string value object.");
	215	ret = -1;
	216	goto end;
	217	}
	218
	219	/* set_environment_entry() logs errors */
	220	ret = set_environment_entry(tc, name, value_obj);
	221
	222	end:
	223	bt_object_put_ref(value_obj);
	224	return ret;
	225	}
	226
a1ed915c PP	227	enum bt_trace_class_status bt_trace_class_set_environment_entry_integer(
a1ed915c PP	228	struct bt_trace_class tc, const char name, int64_t value)
862ca4ed PP	229	{
	230	int ret;
	231	struct bt_value *value_obj;
	232	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	233	BT_ASSERT_PRE_NON_NULL(name, "Name");
	234	value_obj = bt_value_integer_create_init(value);
	235	if (!value_obj) {
	236	BT_LOGE_STR("Cannot create an integer value object.");
a1ed915c	237	ret = BT_TRACE_CLASS_STATUS_NOMEM;
862ca4ed PP	238	goto end;
	239	}
	240
	241	/* set_environment_entry() logs errors */
	242	ret = set_environment_entry(tc, name, value_obj);
	243
	244	end:
	245	bt_object_put_ref(value_obj);
	246	return ret;
	247	}
	248
	249	uint64_t bt_trace_class_get_environment_entry_count(const struct bt_trace_class *tc)
	250	{
	251	int64_t ret;
	252
	253	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	254	ret = bt_attributes_get_count(tc->environment);
	255	BT_ASSERT(ret >= 0);
	256	return (uint64_t) ret;
	257	}
	258
	259	void bt_trace_class_borrow_environment_entry_by_index_const(
	260	const struct bt_trace_class *tc, uint64_t index,
	261	const char name, const struct bt_value value)
	262	{
	263	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	264	BT_ASSERT_PRE_NON_NULL(name, "Name");
	265	BT_ASSERT_PRE_NON_NULL(value, "Value");
	266	BT_ASSERT_PRE_VALID_INDEX(index,
	267	bt_attributes_get_count(tc->environment));
	268	*value = bt_attributes_borrow_field_value(tc->environment, index);
	269	BT_ASSERT(*value);
	270	*name = bt_attributes_get_field_name(tc->environment, index);
	271	BT_ASSERT(*name);
	272	}
	273
	274	const struct bt_value *bt_trace_class_borrow_environment_entry_value_by_name_const(
	275	const struct bt_trace_class tc, const char name)
	276	{
	277	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	278	BT_ASSERT_PRE_NON_NULL(name, "Name");
	279	return bt_attributes_borrow_field_value_by_name(tc->environment,
	280	name);
	281	}
	282
	283	uint64_t bt_trace_class_get_stream_class_count(const struct bt_trace_class *tc)
	284	{
	285	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	286	return (uint64_t) tc->stream_classes->len;
	287	}
	288
	289	struct bt_stream_class *bt_trace_class_borrow_stream_class_by_index(
	290	struct bt_trace_class *tc, uint64_t index)
	291	{
	292	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	293	BT_ASSERT_PRE_VALID_INDEX(index, tc->stream_classes->len);
	294	return g_ptr_array_index(tc->stream_classes, index);
	295	}
	296
	297	const struct bt_stream_class *
	298	bt_trace_class_borrow_stream_class_by_index_const(
	299	const struct bt_trace_class *tc, uint64_t index)
	300	{
	301	return bt_trace_class_borrow_stream_class_by_index(
302	(void *) tc, index);
303	}
304
305	struct bt_stream_class *bt_trace_class_borrow_stream_class_by_id(
306	struct bt_trace_class *tc, uint64_t id)
307	{
308	struct bt_stream_class *stream_class = NULL;
309	uint64_t i;
310
311	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
312
313	for (i = 0; i < tc->stream_classes->len; i++) {
314	struct bt_stream_class *stream_class_candidate =
315	g_ptr_array_index(tc->stream_classes, i);
316
317	if (stream_class_candidate->id == id) {
318	stream_class = stream_class_candidate;
319	goto end;
320	}
321	}
322
323	end:
324	return stream_class;
325	}
326
327	const struct bt_stream_class *
328	bt_trace_class_borrow_stream_class_by_id_const(
329	const struct bt_trace_class *tc, uint64_t id)
330	{
331	return bt_trace_class_borrow_stream_class_by_id((void *) tc, id);
332	}
333
862ca4ed PP	334	BT_HIDDEN
	335	void _bt_trace_class_freeze(const struct bt_trace_class *tc)
	336	{
862ca4ed PP	337	BT_ASSERT(tc);
	338	BT_LIB_LOGD("Freezing trace class: %!+T", tc);
	339	((struct bt_trace_class *) tc)->frozen = true;
	340	}
	341
	342	bt_bool bt_trace_class_assigns_automatic_stream_class_id(const struct bt_trace_class *tc)
	343	{
	344	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	345	return (bt_bool) tc->assigns_automatic_stream_class_id;
	346	}
	347
	348	void bt_trace_class_set_assigns_automatic_stream_class_id(struct bt_trace_class *tc,
	349	bt_bool value)
	350	{
	351	BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
	352	BT_ASSERT_PRE_TRACE_CLASS_HOT(tc);
	353	tc->assigns_automatic_stream_class_id = (bool) value;
	354	BT_LIB_LOGV("Set trace class's automatic stream class ID "
	355	"assignment property: %!+T", tc);
	356	}
c5b9b441 PP	357
	358	void bt_trace_class_get_ref(const struct bt_trace_class *trace_class)
	359	{
	360	bt_object_get_ref(trace_class);
	361	}
	362
	363	void bt_trace_class_put_ref(const struct bt_trace_class *trace_class)
	364	{
	365	bt_object_put_ref(trace_class);
	366	}