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

/*
 * Copyright 2013, 2014 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.
 */

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

#include <babeltrace/assert-pre-internal.h>
#include <babeltrace/trace-ir/clock-value-internal.h>
#include <babeltrace/trace-ir/fields-internal.h>
#include <babeltrace/trace-ir/field-classes.h>
#include <babeltrace/trace-ir/field-classes-internal.h>
#include <babeltrace/trace-ir/private-event-class.h>
#include <babeltrace/trace-ir/event-class.h>
#include <babeltrace/trace-ir/event-class-internal.h>
#include <babeltrace/trace-ir/event-internal.h>
#include <babeltrace/trace-ir/private-stream-class.h>
#include <babeltrace/trace-ir/stream-class.h>
#include <babeltrace/trace-ir/stream-class-internal.h>
#include <babeltrace/trace-ir/trace-internal.h>
#include <babeltrace/trace-ir/utils-internal.h>
#include <babeltrace/trace-ir/resolve-field-path-internal.h>
#include <babeltrace/object.h>
#include <babeltrace/trace-ir/attributes-internal.h>
#include <babeltrace/compiler-internal.h>
#include <babeltrace/endian-internal.h>
#include <babeltrace/types.h>
#include <babeltrace/values-internal.h>
#include <babeltrace/assert-internal.h>
#include <inttypes.h>
#include <stdlib.h>

#define BT_ASSERT_PRE_EVENT_CLASS_HOT(_ec) \
	BT_ASSERT_PRE_HOT(((struct bt_event_class *) (_ec)),		\
		"Event class", ": %!+E", (_ec))

static
void destroy_event_class(struct bt_object *obj)
{
	struct bt_event_class *event_class = (void *) obj;

	BT_LIB_LOGD("Destroying event class: %!+E", event_class);

	if (event_class->name.str) {
		g_string_free(event_class->name.str, TRUE);
	}

	if (event_class->emf_uri.str) {
		g_string_free(event_class->emf_uri.str, TRUE);
	}

	BT_LOGD_STR("Putting context field classe.");
	bt_object_put_ref(event_class->specific_context_fc);
	BT_LOGD_STR("Putting payload field classe.");
	bt_object_put_ref(event_class->payload_fc);
	bt_object_pool_finalize(&event_class->event_pool);
	g_free(obj);
}

static
void free_event(struct bt_event *event,
		struct bt_event_class *event_class)
{
	bt_event_destroy(event);
}

BT_ASSERT_PRE_FUNC
static
bool event_class_id_is_unique(struct bt_stream_class *stream_class, uint64_t id)
{
	uint64_t i;
	bool is_unique = true;

	for (i = 0; i < stream_class->event_classes->len; i++) {
		struct bt_event_class *ec =
			stream_class->event_classes->pdata[i];

		if (ec->id == id) {
			is_unique = false;
			goto end;
		}
	}

end:
	return is_unique;
}

static
struct bt_event_class *create_event_class_with_id(
		struct bt_stream_class *stream_class, uint64_t id)
{
	int ret;
	struct bt_event_class *event_class;

	BT_ASSERT(stream_class);
	BT_ASSERT_PRE(event_class_id_is_unique(stream_class, id),
		"Duplicate event class ID: %![sc-]+S, id=%" PRIu64,
		stream_class, id);
	BT_LIB_LOGD("Creating event class object: %![sc-]+S, id=%" PRIu64,
		stream_class, id);
	event_class = g_new0(struct bt_event_class, 1);
	if (!event_class) {
		BT_LOGE_STR("Failed to allocate one event class.");
		goto error;
	}

	bt_object_init_shared_with_parent(&event_class->base,
		destroy_event_class);
	event_class->id = id;
	bt_property_uint_init(&event_class->log_level,
			BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE, 0);
	event_class->name.str = g_string_new(NULL);
	if (!event_class->name.str) {
		BT_LOGE_STR("Failed to allocate a GString.");
		ret = -1;
		goto end;
	}

	event_class->emf_uri.str = g_string_new(NULL);
	if (!event_class->emf_uri.str) {
		BT_LOGE_STR("Failed to allocate a GString.");
		ret = -1;
		goto end;
	}

	ret = bt_object_pool_initialize(&event_class->event_pool,
		(bt_object_pool_new_object_func) bt_event_new,
		(bt_object_pool_destroy_object_func) free_event,
		event_class);
	if (ret) {
		BT_LOGE("Failed to initialize event pool: ret=%d",
			ret);
		goto error;
	}

	bt_object_set_parent(&event_class->base, &stream_class->base);
	g_ptr_array_add(stream_class->event_classes, event_class);
	bt_stream_class_freeze(stream_class);
	BT_LIB_LOGD("Created event class object: %!+E", event_class);
	goto end;

error:
	BT_OBJECT_PUT_REF_AND_RESET(event_class);

end:
	return event_class;
}

struct bt_private_event_class *bt_private_event_class_create(
		struct bt_private_stream_class *priv_stream_class)
{
	struct bt_stream_class *stream_class = (void *) priv_stream_class;

	BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
	BT_ASSERT_PRE(stream_class->assigns_automatic_event_class_id,
		"Stream class does not automatically assigns event class IDs: "
		"%![sc-]+S", stream_class);
	return (void *) create_event_class_with_id((void *) stream_class,
		(uint64_t) stream_class->event_classes->len);
}

struct bt_private_event_class *bt_private_event_class_create_with_id(
		struct bt_private_stream_class *priv_stream_class, uint64_t id)
{
	struct bt_stream_class *stream_class = (void *) priv_stream_class;

	BT_ASSERT_PRE(!stream_class->assigns_automatic_event_class_id,
		"Stream class automatically assigns event class IDs: "
		"%![sc-]+S", stream_class);
	return (void *) create_event_class_with_id((void *) stream_class, id);
}

const char *bt_event_class_get_name(struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	return event_class->name.value;
}

int bt_private_event_class_set_name(struct bt_private_event_class *priv_event_class,
		const char *name)
{
	struct bt_event_class *event_class = (void *) priv_event_class;

	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	BT_ASSERT_PRE_NON_NULL(name, "Name");
	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	g_string_assign(event_class->name.str, name);
	event_class->name.value = event_class->name.str->str;
	BT_LIB_LOGV("Set event class's name: %!+E", event_class);
	return 0;
}

uint64_t bt_event_class_get_id(struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	return event_class->id;
}

enum bt_property_availability bt_event_class_get_log_level(
		struct bt_event_class *event_class,
		enum bt_event_class_log_level *log_level)
{
	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	BT_ASSERT_PRE_NON_NULL(log_level, "Log level (output)");
	*log_level = (enum bt_event_class_log_level)
		event_class->log_level.value;
	return event_class->log_level.base.avail;
}

int bt_private_event_class_set_log_level(
		struct bt_private_event_class *priv_event_class,
		enum bt_event_class_log_level log_level)
{
	struct bt_event_class *event_class = (void *) priv_event_class;

	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	bt_property_uint_set(&event_class->log_level,
		(uint64_t) log_level);
	BT_LIB_LOGV("Set event class's log level: %!+E", event_class);
	return 0;
}

const char *bt_event_class_get_emf_uri(struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	return event_class->emf_uri.value;
}

int bt_private_event_class_set_emf_uri(
		struct bt_private_event_class *priv_event_class,
		const char *emf_uri)
{
	struct bt_event_class *event_class = (void *) priv_event_class;

	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	BT_ASSERT_PRE_NON_NULL(emf_uri, "EMF URI");
	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	g_string_assign(event_class->emf_uri.str, emf_uri);
	event_class->emf_uri.value = event_class->emf_uri.str->str;
	BT_LIB_LOGV("Set event class's EMF URI: %!+E", event_class);
	return 0;
}

struct bt_stream_class *bt_event_class_borrow_stream_class(
		struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	return bt_event_class_borrow_stream_class_inline(event_class);
}

struct bt_private_stream_class *
bt_private_event_class_borrow_private_stream_class(
		struct bt_private_event_class *event_class)
{
	return (void *) bt_event_class_borrow_stream_class(
		(void *) event_class);
}

struct bt_field_class *bt_event_class_borrow_specific_context_field_class(
		struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	return event_class->specific_context_fc;
}

struct bt_private_field_class *
bt_private_event_class_borrow_specific_context_private_field_class(
		struct bt_private_event_class *event_class)
{
	return (void *) bt_event_class_borrow_specific_context_field_class(
		(void *) event_class);
}

int bt_private_event_class_set_specific_context_private_field_class(
		struct bt_private_event_class *priv_event_class,
		struct bt_private_field_class *priv_field_class)
{
	int ret;
	struct bt_event_class *event_class = (void *) priv_event_class;
	struct bt_field_class *field_class = (void *) priv_field_class;
	struct bt_stream_class *stream_class;
	struct bt_trace *trace;
	struct bt_resolve_field_path_context resolve_ctx = {
		.packet_header = NULL,
		.packet_context = NULL,
		.event_header = NULL,
		.event_common_context = NULL,
		.event_specific_context = field_class,
		.event_payload = NULL,
	};

	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
		BT_FIELD_CLASS_TYPE_STRUCTURE,
		"Specific context field classe is not a structure field classe: "
		"%!+F", field_class);
	stream_class = bt_event_class_borrow_stream_class_inline(
		event_class);
	trace = bt_stream_class_borrow_trace_inline(stream_class);
	resolve_ctx.packet_header = trace->packet_header_fc;
	resolve_ctx.packet_context = stream_class->packet_context_fc;
	resolve_ctx.event_header = stream_class->event_header_fc;
	resolve_ctx.event_common_context =
		stream_class->event_common_context_fc;

	ret = bt_resolve_field_paths(field_class, &resolve_ctx);
	if (ret) {
		goto end;
	}

	bt_field_class_make_part_of_trace(field_class);
	bt_object_put_ref(event_class->specific_context_fc);
	event_class->specific_context_fc = bt_object_get_ref(field_class);
	bt_field_class_freeze(field_class);
	BT_LIB_LOGV("Set event class's specific context field classe: %!+E",
		event_class);

end:
	return ret;
}

struct bt_field_class *bt_event_class_borrow_payload_field_class(
		struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	return event_class->payload_fc;
}

struct bt_private_field_class *bt_private_event_class_borrow_payload_private_field_class(
		struct bt_private_event_class *event_class)
{
	return (void *) bt_event_class_borrow_payload_field_class(
		(void *) event_class);
}

int bt_private_event_class_set_payload_private_field_class(
		struct bt_private_event_class *priv_event_class,
		struct bt_private_field_class *priv_field_class)
{
	int ret;
	struct bt_event_class *event_class = (void *) priv_event_class;
	struct bt_field_class *field_class = (void *) priv_field_class;
	struct bt_stream_class *stream_class;
	struct bt_trace *trace;
	struct bt_resolve_field_path_context resolve_ctx = {
		.packet_header = NULL,
		.packet_context = NULL,
		.event_header = NULL,
		.event_common_context = NULL,
		.event_specific_context = NULL,
		.event_payload = field_class,
	};

	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
		BT_FIELD_CLASS_TYPE_STRUCTURE,
		"Payload field classe is not a structure field classe: %!+F",
		field_class);
	stream_class = bt_event_class_borrow_stream_class_inline(
		event_class);
	trace = bt_stream_class_borrow_trace_inline(stream_class);
	resolve_ctx.packet_header = trace->packet_header_fc;
	resolve_ctx.packet_context = stream_class->packet_context_fc;
	resolve_ctx.event_header = stream_class->event_header_fc;
	resolve_ctx.event_common_context =
		stream_class->event_common_context_fc;
	resolve_ctx.event_specific_context = event_class->specific_context_fc;

	ret = bt_resolve_field_paths(field_class, &resolve_ctx);
	if (ret) {
		goto end;
	}

	bt_field_class_make_part_of_trace(field_class);
	bt_object_put_ref(event_class->payload_fc);
	event_class->payload_fc = bt_object_get_ref(field_class);
	bt_field_class_freeze(field_class);
	BT_LIB_LOGV("Set event class's payload field classe: %!+E", event_class);

end:
	return ret;
}

BT_HIDDEN
void _bt_event_class_freeze(struct bt_event_class *event_class)
{
	/* The field classes are already frozen */
	BT_ASSERT(event_class);
	BT_LIB_LOGD("Freezing event class: %!+E", event_class);
	event_class->frozen = true;
}

struct bt_event_class *bt_event_class_borrow_from_private(
		struct bt_private_event_class *priv_event_class)
{
	return (void *) priv_event_class;
}
Commit	Line	Data
	1	/*
	2	* Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
	3	*
	4	* Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	19	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	22	* SOFTWARE.
	23	*/
	24
	25	#define BT_LOG_TAG "EVENT-CLASS"
	26	#include <babeltrace/lib-logging-internal.h>
	27
	28	#include <babeltrace/assert-pre-internal.h>
	29	#include <babeltrace/trace-ir/clock-value-internal.h>
	30	#include <babeltrace/trace-ir/fields-internal.h>
	31	#include <babeltrace/trace-ir/field-classes.h>
	32	#include <babeltrace/trace-ir/field-classes-internal.h>
	33	#include <babeltrace/trace-ir/private-event-class.h>
	34	#include <babeltrace/trace-ir/event-class.h>
	35	#include <babeltrace/trace-ir/event-class-internal.h>
	36	#include <babeltrace/trace-ir/event-internal.h>
	37	#include <babeltrace/trace-ir/private-stream-class.h>
	38	#include <babeltrace/trace-ir/stream-class.h>
	39	#include <babeltrace/trace-ir/stream-class-internal.h>
	40	#include <babeltrace/trace-ir/trace-internal.h>
	41	#include <babeltrace/trace-ir/utils-internal.h>
	42	#include <babeltrace/trace-ir/resolve-field-path-internal.h>
	43	#include <babeltrace/object.h>
	44	#include <babeltrace/trace-ir/attributes-internal.h>
	45	#include <babeltrace/compiler-internal.h>
	46	#include <babeltrace/endian-internal.h>
	47	#include <babeltrace/types.h>
	48	#include <babeltrace/values-internal.h>
	49	#include <babeltrace/assert-internal.h>
	50	#include <inttypes.h>
	51	#include <stdlib.h>
	52
	53	#define BT_ASSERT_PRE_EVENT_CLASS_HOT(_ec) \
	54	BT_ASSERT_PRE_HOT(((struct bt_event_class *) (_ec)), \
	55	"Event class", ": %!+E", (_ec))
	56
	57	static
	58	void destroy_event_class(struct bt_object *obj)
	59	{
	60	struct bt_event_class event_class = (void ) obj;
	61
	62	BT_LIB_LOGD("Destroying event class: %!+E", event_class);
	63
	64	if (event_class->name.str) {
	65	g_string_free(event_class->name.str, TRUE);
	66	}
	67
	68	if (event_class->emf_uri.str) {
	69	g_string_free(event_class->emf_uri.str, TRUE);
	70	}
	71
	72	BT_LOGD_STR("Putting context field classe.");
	73	bt_object_put_ref(event_class->specific_context_fc);
	74	BT_LOGD_STR("Putting payload field classe.");
	75	bt_object_put_ref(event_class->payload_fc);
	76	bt_object_pool_finalize(&event_class->event_pool);
	77	g_free(obj);
	78	}
	79
	80	static
	81	void free_event(struct bt_event *event,
	82	struct bt_event_class *event_class)
	83	{
	84	bt_event_destroy(event);
	85	}
	86
	87	BT_ASSERT_PRE_FUNC
	88	static
	89	bool event_class_id_is_unique(struct bt_stream_class *stream_class, uint64_t id)
	90	{
	91	uint64_t i;
	92	bool is_unique = true;
	93
	94	for (i = 0; i < stream_class->event_classes->len; i++) {
	95	struct bt_event_class *ec =
	96	stream_class->event_classes->pdata[i];
	97
	98	if (ec->id == id) {
	99	is_unique = false;
	100	goto end;
	101	}
	102	}
	103
	104	end:
	105	return is_unique;
	106	}
	107
	108	static
	109	struct bt_event_class *create_event_class_with_id(
	110	struct bt_stream_class *stream_class, uint64_t id)
	111	{
	112	int ret;
	113	struct bt_event_class *event_class;
	114
	115	BT_ASSERT(stream_class);
	116	BT_ASSERT_PRE(event_class_id_is_unique(stream_class, id),
	117	"Duplicate event class ID: %![sc-]+S, id=%" PRIu64,
	118	stream_class, id);
	119	BT_LIB_LOGD("Creating event class object: %![sc-]+S, id=%" PRIu64,
	120	stream_class, id);
	121	event_class = g_new0(struct bt_event_class, 1);
	122	if (!event_class) {
	123	BT_LOGE_STR("Failed to allocate one event class.");
	124	goto error;
	125	}
	126
	127	bt_object_init_shared_with_parent(&event_class->base,
	128	destroy_event_class);
	129	event_class->id = id;
	130	bt_property_uint_init(&event_class->log_level,
	131	BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE, 0);
	132	event_class->name.str = g_string_new(NULL);
	133	if (!event_class->name.str) {
	134	BT_LOGE_STR("Failed to allocate a GString.");
	135	ret = -1;
	136	goto end;
	137	}
	138
	139	event_class->emf_uri.str = g_string_new(NULL);
	140	if (!event_class->emf_uri.str) {
	141	BT_LOGE_STR("Failed to allocate a GString.");
	142	ret = -1;
	143	goto end;
	144	}
	145
	146	ret = bt_object_pool_initialize(&event_class->event_pool,
	147	(bt_object_pool_new_object_func) bt_event_new,
	148	(bt_object_pool_destroy_object_func) free_event,
	149	event_class);
	150	if (ret) {
	151	BT_LOGE("Failed to initialize event pool: ret=%d",
	152	ret);
	153	goto error;
	154	}
	155
	156	bt_object_set_parent(&event_class->base, &stream_class->base);
	157	g_ptr_array_add(stream_class->event_classes, event_class);
	158	bt_stream_class_freeze(stream_class);
	159	BT_LIB_LOGD("Created event class object: %!+E", event_class);
	160	goto end;
	161
	162	error:
	163	BT_OBJECT_PUT_REF_AND_RESET(event_class);
	164
	165	end:
	166	return event_class;
	167	}
	168
	169	struct bt_private_event_class *bt_private_event_class_create(
	170	struct bt_private_stream_class *priv_stream_class)
	171	{
	172	struct bt_stream_class stream_class = (void ) priv_stream_class;
	173
	174	BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
	175	BT_ASSERT_PRE(stream_class->assigns_automatic_event_class_id,
	176	"Stream class does not automatically assigns event class IDs: "
	177	"%![sc-]+S", stream_class);
	178	return (void ) create_event_class_with_id((void ) stream_class,
	179	(uint64_t) stream_class->event_classes->len);
	180	}
	181
	182	struct bt_private_event_class *bt_private_event_class_create_with_id(
	183	struct bt_private_stream_class *priv_stream_class, uint64_t id)
	184	{
	185	struct bt_stream_class stream_class = (void ) priv_stream_class;
	186
	187	BT_ASSERT_PRE(!stream_class->assigns_automatic_event_class_id,
	188	"Stream class automatically assigns event class IDs: "
	189	"%![sc-]+S", stream_class);
	190	return (void ) create_event_class_with_id((void ) stream_class, id);
	191	}
	192
	193	const char bt_event_class_get_name(struct bt_event_class event_class)
	194	{
	195	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	196	return event_class->name.value;
	197	}
	198
	199	int bt_private_event_class_set_name(struct bt_private_event_class *priv_event_class,
	200	const char *name)
	201	{
	202	struct bt_event_class event_class = (void ) priv_event_class;
	203
	204	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	205	BT_ASSERT_PRE_NON_NULL(name, "Name");
	206	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	207	g_string_assign(event_class->name.str, name);
	208	event_class->name.value = event_class->name.str->str;
	209	BT_LIB_LOGV("Set event class's name: %!+E", event_class);
	210	return 0;
	211	}
	212
	213	uint64_t bt_event_class_get_id(struct bt_event_class *event_class)
	214	{
	215	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	216	return event_class->id;
	217	}
	218
	219	enum bt_property_availability bt_event_class_get_log_level(
	220	struct bt_event_class *event_class,
	221	enum bt_event_class_log_level *log_level)
	222	{
	223	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	224	BT_ASSERT_PRE_NON_NULL(log_level, "Log level (output)");
	225	*log_level = (enum bt_event_class_log_level)
	226	event_class->log_level.value;
	227	return event_class->log_level.base.avail;
	228	}
	229
	230	int bt_private_event_class_set_log_level(
	231	struct bt_private_event_class *priv_event_class,
	232	enum bt_event_class_log_level log_level)
	233	{
	234	struct bt_event_class event_class = (void ) priv_event_class;
	235
	236	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	237	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	238	bt_property_uint_set(&event_class->log_level,
	239	(uint64_t) log_level);
	240	BT_LIB_LOGV("Set event class's log level: %!+E", event_class);
	241	return 0;
	242	}
	243
	244	const char bt_event_class_get_emf_uri(struct bt_event_class event_class)
	245	{
	246	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	247	return event_class->emf_uri.value;
	248	}
	249
	250	int bt_private_event_class_set_emf_uri(
	251	struct bt_private_event_class *priv_event_class,
	252	const char *emf_uri)
	253	{
	254	struct bt_event_class event_class = (void ) priv_event_class;
	255
	256	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	257	BT_ASSERT_PRE_NON_NULL(emf_uri, "EMF URI");
	258	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	259	g_string_assign(event_class->emf_uri.str, emf_uri);
	260	event_class->emf_uri.value = event_class->emf_uri.str->str;
	261	BT_LIB_LOGV("Set event class's EMF URI: %!+E", event_class);
	262	return 0;
	263	}
	264
	265	struct bt_stream_class *bt_event_class_borrow_stream_class(
	266	struct bt_event_class *event_class)
	267	{
	268	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	269	return bt_event_class_borrow_stream_class_inline(event_class);
	270	}
	271
	272	struct bt_private_stream_class *
	273	bt_private_event_class_borrow_private_stream_class(
	274	struct bt_private_event_class *event_class)
	275	{
	276	return (void *) bt_event_class_borrow_stream_class(
	277	(void *) event_class);
	278	}
	279
	280	struct bt_field_class *bt_event_class_borrow_specific_context_field_class(
	281	struct bt_event_class *event_class)
	282	{
	283	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	284	return event_class->specific_context_fc;
	285	}
	286
	287	struct bt_private_field_class *
	288	bt_private_event_class_borrow_specific_context_private_field_class(
	289	struct bt_private_event_class *event_class)
	290	{
	291	return (void *) bt_event_class_borrow_specific_context_field_class(
	292	(void *) event_class);
	293	}
	294
	295	int bt_private_event_class_set_specific_context_private_field_class(
	296	struct bt_private_event_class *priv_event_class,
	297	struct bt_private_field_class *priv_field_class)
	298	{
	299	int ret;
	300	struct bt_event_class event_class = (void ) priv_event_class;
	301	struct bt_field_class field_class = (void ) priv_field_class;
	302	struct bt_stream_class *stream_class;
	303	struct bt_trace *trace;
	304	struct bt_resolve_field_path_context resolve_ctx = {
	305	.packet_header = NULL,
	306	.packet_context = NULL,
	307	.event_header = NULL,
	308	.event_common_context = NULL,
	309	.event_specific_context = field_class,
	310	.event_payload = NULL,
	311	};
	312
	313	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	314	BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
	315	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	316	BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
	317	BT_FIELD_CLASS_TYPE_STRUCTURE,
	318	"Specific context field classe is not a structure field classe: "
	319	"%!+F", field_class);
	320	stream_class = bt_event_class_borrow_stream_class_inline(
	321	event_class);
	322	trace = bt_stream_class_borrow_trace_inline(stream_class);
	323	resolve_ctx.packet_header = trace->packet_header_fc;
	324	resolve_ctx.packet_context = stream_class->packet_context_fc;
	325	resolve_ctx.event_header = stream_class->event_header_fc;
	326	resolve_ctx.event_common_context =
	327	stream_class->event_common_context_fc;
	328
	329	ret = bt_resolve_field_paths(field_class, &resolve_ctx);
	330	if (ret) {
	331	goto end;
	332	}
	333
	334	bt_field_class_make_part_of_trace(field_class);
	335	bt_object_put_ref(event_class->specific_context_fc);
	336	event_class->specific_context_fc = bt_object_get_ref(field_class);
	337	bt_field_class_freeze(field_class);
	338	BT_LIB_LOGV("Set event class's specific context field classe: %!+E",
	339	event_class);
	340
	341	end:
	342	return ret;
	343	}
	344
	345	struct bt_field_class *bt_event_class_borrow_payload_field_class(
	346	struct bt_event_class *event_class)
	347	{
	348	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	349	return event_class->payload_fc;
	350	}
	351
	352	struct bt_private_field_class *bt_private_event_class_borrow_payload_private_field_class(
	353	struct bt_private_event_class *event_class)
	354	{
	355	return (void *) bt_event_class_borrow_payload_field_class(
	356	(void *) event_class);
	357	}
	358
	359	int bt_private_event_class_set_payload_private_field_class(
	360	struct bt_private_event_class *priv_event_class,
	361	struct bt_private_field_class *priv_field_class)
	362	{
	363	int ret;
	364	struct bt_event_class event_class = (void ) priv_event_class;
	365	struct bt_field_class field_class = (void ) priv_field_class;
	366	struct bt_stream_class *stream_class;
	367	struct bt_trace *trace;
	368	struct bt_resolve_field_path_context resolve_ctx = {
	369	.packet_header = NULL,
	370	.packet_context = NULL,
	371	.event_header = NULL,
	372	.event_common_context = NULL,
	373	.event_specific_context = NULL,
	374	.event_payload = field_class,
	375	};
	376
	377	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	378	BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
	379	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	380	BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
	381	BT_FIELD_CLASS_TYPE_STRUCTURE,
	382	"Payload field classe is not a structure field classe: %!+F",
	383	field_class);
	384	stream_class = bt_event_class_borrow_stream_class_inline(
	385	event_class);
	386	trace = bt_stream_class_borrow_trace_inline(stream_class);
	387	resolve_ctx.packet_header = trace->packet_header_fc;
	388	resolve_ctx.packet_context = stream_class->packet_context_fc;
	389	resolve_ctx.event_header = stream_class->event_header_fc;
	390	resolve_ctx.event_common_context =
	391	stream_class->event_common_context_fc;
	392	resolve_ctx.event_specific_context = event_class->specific_context_fc;
	393
	394	ret = bt_resolve_field_paths(field_class, &resolve_ctx);
	395	if (ret) {
	396	goto end;
	397	}
	398
	399	bt_field_class_make_part_of_trace(field_class);
	400	bt_object_put_ref(event_class->payload_fc);
	401	event_class->payload_fc = bt_object_get_ref(field_class);
	402	bt_field_class_freeze(field_class);
	403	BT_LIB_LOGV("Set event class's payload field classe: %!+E", event_class);
	404
	405	end:
	406	return ret;
	407	}
	408
	409	BT_HIDDEN
	410	void _bt_event_class_freeze(struct bt_event_class *event_class)
	411	{
	412	/* The field classes are already frozen */
	413	BT_ASSERT(event_class);
	414	BT_LIB_LOGD("Freezing event class: %!+E", event_class);
	415	event_class->frozen = true;
	416	}
	417
	418	struct bt_event_class *bt_event_class_borrow_from_private(
	419	struct bt_private_event_class *priv_event_class)
	420	{
	421	return (void *) priv_event_class;
	422	}