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

/*
 * SPDX-License-Identifier: MIT
 *
 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
 * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 */

#define BT_LOG_TAG "LIB/EVENT-CLASS"
#include "lib/logging.h"

#include "lib/assert-cond.h"
#include <babeltrace2/trace-ir/field-class.h>
#include <babeltrace2/trace-ir/event-class.h>
#include <babeltrace2/trace-ir/stream-class.h>
#include "compat/compiler.h"
#include "compat/endian.h"
#include <babeltrace2/types.h>
#include "lib/value.h"
#include "common/assert.h"
#include <inttypes.h>
#include <stdbool.h>
#include <stdlib.h>

#include "event-class.h"
#include "event.h"
#include "field-class.h"
#include "resolve-field-path.h"
#include "stream-class.h"
#include "lib/func-status.h"

#define BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(_ec)				\
	BT_ASSERT_PRE_DEV_HOT("event-class",				\
		((const 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);
	BT_OBJECT_PUT_REF_AND_RESET(event_class->user_attributes);

	g_free(event_class->ns);
	g_free(event_class->name);
	g_free(event_class->uid);
	g_free(event_class->emf_uri);
	BT_LOGD_STR("Putting context field class.");
	BT_OBJECT_PUT_REF_AND_RESET(event_class->specific_context_fc);
	BT_LOGD_STR("Putting payload field class.");
	BT_OBJECT_PUT_REF_AND_RESET(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 __attribute__((unused)))
{
	bt_event_destroy(event);
}

static
bool event_class_id_is_unique(const 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++) {
		const 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",
		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_LIB_LOGE_APPEND_CAUSE("Failed to allocate one event class.");
		goto error;
	}

	bt_object_init_shared_with_parent(&event_class->base,
		destroy_event_class);
	event_class->user_attributes = bt_value_map_create();
	if (!event_class->user_attributes) {
		BT_LIB_LOGE_APPEND_CAUSE(
			"Failed to create a map value object.");
		goto error;
	}

	event_class->id = id;
	bt_property_uint_init(&event_class->log_level,
			BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE, 0);

	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_LIB_LOGE_APPEND_CAUSE(
			"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;
}

BT_EXPORT
struct bt_event_class *bt_event_class_create(
		struct bt_stream_class *stream_class)
{
	BT_ASSERT_PRE_NO_ERROR();
	BT_ASSERT_PRE_SC_NON_NULL(stream_class);
	BT_ASSERT_PRE(
		"stream-class-automatically-assigns-event-class-ids",
		stream_class->assigns_automatic_event_class_id,
		"Stream class does not automatically assigns event class IDs: "
		"%![sc-]+S", stream_class);
	return create_event_class_with_id(stream_class,
		(uint64_t) stream_class->event_classes->len);
}

BT_EXPORT
struct bt_event_class *bt_event_class_create_with_id(
		struct bt_stream_class *stream_class, uint64_t id)
{
	BT_ASSERT_PRE_NO_ERROR();
	BT_ASSERT_PRE(
		"stream-class-does-not-automatically-assigns-event-class-ids",
		!stream_class->assigns_automatic_event_class_id,
		"Stream class automatically assigns event class IDs: "
		"%![sc-]+S", stream_class);
	return create_event_class_with_id(stream_class, id);
}

BT_EXPORT
const char *bt_event_class_get_namespace(const struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_EC_MIP_VERSION_GE(event_class, 1);
	return event_class->ns;
}

BT_EXPORT
enum bt_event_class_set_namespace_status bt_event_class_set_namespace(
		struct bt_event_class *event_class, const char *ns)
{
	BT_ASSERT_PRE_NO_ERROR();
	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_EC_MIP_VERSION_GE(event_class, 1);
	BT_ASSERT_PRE_NAMESPACE_NON_NULL(ns);
	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	g_free(event_class->ns);
	event_class->ns = g_strdup(ns);
	BT_LIB_LOGD("Set event class's namespace: %!+E", event_class);
	return BT_FUNC_STATUS_OK;
}

BT_EXPORT
const char *bt_event_class_get_name(const struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	return event_class->name;
}

BT_EXPORT
enum bt_event_class_set_name_status bt_event_class_set_name(
		struct bt_event_class *event_class, const char *name)
{
	BT_ASSERT_PRE_NO_ERROR();
	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_NAME_NON_NULL(name);
	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	g_free(event_class->name);
	event_class->name = g_strdup(name);
	BT_LIB_LOGD("Set event class's name: %!+E", event_class);
	return BT_FUNC_STATUS_OK;
}

BT_EXPORT
const char *bt_event_class_get_uid(const struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_EC_MIP_VERSION_GE(event_class, 1);
	return event_class->uid;
}

BT_EXPORT
enum bt_event_class_set_uid_status bt_event_class_set_uid(
		struct bt_event_class *event_class, const char *uid)
{
	BT_ASSERT_PRE_NO_ERROR();
	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_EC_MIP_VERSION_GE(event_class, 1);
	BT_ASSERT_PRE_NAME_NON_NULL(uid);
	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	g_free(event_class->uid);
	event_class->uid = g_strdup(uid);
	BT_LIB_LOGD("Set event class's UID: %!+E", event_class);
	return BT_FUNC_STATUS_OK;
}

BT_EXPORT
uint64_t bt_event_class_get_id(const struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	return event_class->id;
}

BT_EXPORT
enum bt_property_availability bt_event_class_get_log_level(
		const struct bt_event_class *event_class,
		enum bt_event_class_log_level *log_level)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_DEV_NON_NULL("log-level-output", 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;
}

BT_EXPORT
void bt_event_class_set_log_level(
		struct bt_event_class *event_class,
		enum bt_event_class_log_level log_level)
{
	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	bt_property_uint_set(&event_class->log_level,
		(uint64_t) log_level);
	BT_LIB_LOGD("Set event class's log level: %!+E", event_class);
}

BT_EXPORT
const char *bt_event_class_get_emf_uri(const struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	return event_class->emf_uri;
}

BT_EXPORT
enum bt_event_class_set_emf_uri_status bt_event_class_set_emf_uri(
		struct bt_event_class *event_class,
		const char *emf_uri)
{
	BT_ASSERT_PRE_NO_ERROR();
	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_NON_NULL("emf-uri", emf_uri, "EMF URI");
	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	g_free(event_class->emf_uri);
	event_class->emf_uri = g_strdup(emf_uri);
	BT_LIB_LOGD("Set event class's EMF URI: %!+E", event_class);
	return BT_FUNC_STATUS_OK;
}

BT_EXPORT
struct bt_stream_class *bt_event_class_borrow_stream_class(
		struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	return bt_event_class_borrow_stream_class_inline(event_class);
}

BT_EXPORT
const struct bt_stream_class *
bt_event_class_borrow_stream_class_const(
		const struct bt_event_class *event_class)
{
	return bt_event_class_borrow_stream_class((void *) event_class);
}

BT_EXPORT
const struct bt_field_class *
bt_event_class_borrow_specific_context_field_class_const(
		const struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	return event_class->specific_context_fc;
}

BT_EXPORT
struct bt_field_class *
bt_event_class_borrow_specific_context_field_class(
		struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	return event_class->specific_context_fc;
}

BT_EXPORT
enum bt_event_class_set_field_class_status
bt_event_class_set_specific_context_field_class(
		struct bt_event_class *event_class,
		struct bt_field_class *field_class)
{
	enum bt_event_class_set_field_class_status status;
	enum bt_resolve_field_xref_status resolve_status;
	struct bt_stream_class *stream_class;
	struct bt_resolve_field_xref_context resolve_ctx = {
		.packet_context = NULL,
		.event_common_context = NULL,
		.event_specific_context = field_class,
		.event_payload = NULL,
	};

	BT_ASSERT_PRE_NO_ERROR();
	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_FC_NON_NULL(field_class);
	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	BT_ASSERT_PRE_FC_IS_STRUCT("specific-context", field_class,
		"Specific context field class");
	stream_class = bt_event_class_borrow_stream_class_inline(
		event_class);
	resolve_ctx.packet_context = stream_class->packet_context_fc;
	resolve_ctx.event_common_context =
		stream_class->event_common_context_fc;

	resolve_status = bt_resolve_field_paths(field_class, &resolve_ctx, __func__);
	if (resolve_status != BT_RESOLVE_FIELD_XREF_STATUS_OK) {
		status = (int) resolve_status;
		goto end;
	}

	bt_field_class_make_part_of_trace_class(field_class);
	bt_object_put_ref(event_class->specific_context_fc);
	event_class->specific_context_fc = field_class;
	bt_object_get_ref_no_null_check(event_class->specific_context_fc);
	bt_field_class_freeze(field_class);
	BT_LIB_LOGD("Set event class's specific context field class: %!+E",
		event_class);

	status = BT_EVENT_CLASS_SET_FIELD_CLASS_STATUS_OK;

end:
	return status;
}

BT_EXPORT
const struct bt_field_class *bt_event_class_borrow_payload_field_class_const(
		const struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	return event_class->payload_fc;
}

BT_EXPORT
struct bt_field_class *bt_event_class_borrow_payload_field_class(
		struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	return event_class->payload_fc;
}

BT_EXPORT
enum bt_event_class_set_field_class_status
bt_event_class_set_payload_field_class(
		struct bt_event_class *event_class,
		struct bt_field_class *field_class)
{
	enum bt_event_class_set_field_class_status status;
	enum bt_resolve_field_xref_status resolve_status;
	struct bt_stream_class *stream_class;
	struct bt_resolve_field_xref_context resolve_ctx = {
		.packet_context = NULL,
		.event_common_context = NULL,
		.event_specific_context = NULL,
		.event_payload = field_class,
	};

	BT_ASSERT_PRE_NO_ERROR();
	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_FC_NON_NULL(field_class);
	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	BT_ASSERT_PRE_FC_IS_STRUCT("payload", field_class, "Payload field class");
	stream_class = bt_event_class_borrow_stream_class_inline(
		event_class);
	resolve_ctx.packet_context = stream_class->packet_context_fc;
	resolve_ctx.event_common_context =
		stream_class->event_common_context_fc;
	resolve_ctx.event_specific_context = event_class->specific_context_fc;

	resolve_status = bt_resolve_field_paths(field_class, &resolve_ctx, __func__);
	if (resolve_status != BT_RESOLVE_FIELD_XREF_STATUS_OK) {
		status = (int) resolve_status;
		goto end;
	}

	bt_field_class_make_part_of_trace_class(field_class);
	bt_object_put_ref(event_class->payload_fc);
	event_class->payload_fc = field_class;
	bt_object_get_ref_no_null_check(event_class->payload_fc);
	bt_field_class_freeze(field_class);
	BT_LIB_LOGD("Set event class's payload field class: %!+E", event_class);

	status = BT_EVENT_CLASS_SET_FIELD_CLASS_STATUS_OK;

end:
	return status;
}

void _bt_event_class_freeze(const struct bt_event_class *event_class)
{
	/* The field classes are already frozen */
	BT_ASSERT(event_class);
	BT_LIB_LOGD("Freezing event class's user attributes: %!+v",
		event_class->user_attributes);
	bt_value_freeze(event_class->user_attributes);
	BT_LIB_LOGD("Freezing event class: %!+E", event_class);
	((struct bt_event_class *) event_class)->frozen = true;
}

BT_EXPORT
const struct bt_value *bt_event_class_borrow_user_attributes_const(
		const struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	return event_class->user_attributes;
}

BT_EXPORT
struct bt_value *bt_event_class_borrow_user_attributes(
		struct bt_event_class *event_class)
{
	return (void *) bt_event_class_borrow_user_attributes_const(
		(void *) event_class);
}

BT_EXPORT
void bt_event_class_set_user_attributes(
		struct bt_event_class *event_class,
		const struct bt_value *user_attributes)
{
	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	BT_ASSERT_PRE_USER_ATTRS_NON_NULL(user_attributes);
	BT_ASSERT_PRE_USER_ATTRS_IS_MAP(user_attributes);
	bt_object_put_ref_no_null_check(event_class->user_attributes);
	event_class->user_attributes = (void *) user_attributes;
	bt_object_get_ref_no_null_check(event_class->user_attributes);
}

BT_EXPORT
void bt_event_class_get_ref(const struct bt_event_class *event_class)
{
	bt_object_get_ref(event_class);
}

BT_EXPORT
void bt_event_class_put_ref(const struct bt_event_class *event_class)
{
	bt_object_put_ref(event_class);
}
Commit	Line	Data
	1	/*
	2	* SPDX-License-Identifier: MIT
	3	*
	4	* Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
	5	* Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
	6	*/
	7
	8	#define BT_LOG_TAG "LIB/EVENT-CLASS"
	9	#include "lib/logging.h"
	10
	11	#include "lib/assert-cond.h"
	12	#include <babeltrace2/trace-ir/field-class.h>
	13	#include <babeltrace2/trace-ir/event-class.h>
	14	#include <babeltrace2/trace-ir/stream-class.h>
	15	#include "compat/compiler.h"
	16	#include "compat/endian.h"
	17	#include <babeltrace2/types.h>
	18	#include "lib/value.h"
	19	#include "common/assert.h"
	20	#include <inttypes.h>
	21	#include <stdbool.h>
	22	#include <stdlib.h>
	23
	24	#include "event-class.h"
	25	#include "event.h"
	26	#include "field-class.h"
	27	#include "resolve-field-path.h"
	28	#include "stream-class.h"
	29	#include "lib/func-status.h"
	30
	31	#define BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(_ec) \
	32	BT_ASSERT_PRE_DEV_HOT("event-class", \
	33	((const struct bt_event_class *) (_ec)), \
	34	"Event class", ": %!+E", (_ec))
	35
	36	static
	37	void destroy_event_class(struct bt_object *obj)
	38	{
	39	struct bt_event_class event_class = (void ) obj;
	40
	41	BT_LIB_LOGD("Destroying event class: %!+E", event_class);
	42	BT_OBJECT_PUT_REF_AND_RESET(event_class->user_attributes);
	43
	44	g_free(event_class->ns);
	45	g_free(event_class->name);
	46	g_free(event_class->uid);
	47	g_free(event_class->emf_uri);
	48	BT_LOGD_STR("Putting context field class.");
	49	BT_OBJECT_PUT_REF_AND_RESET(event_class->specific_context_fc);
	50	BT_LOGD_STR("Putting payload field class.");
	51	BT_OBJECT_PUT_REF_AND_RESET(event_class->payload_fc);
	52	bt_object_pool_finalize(&event_class->event_pool);
	53	g_free(obj);
	54	}
	55
	56	static
	57	void free_event(struct bt_event *event,
	58	struct bt_event_class *event_class __attribute__((unused)))
	59	{
	60	bt_event_destroy(event);
	61	}
	62
	63	static
	64	bool event_class_id_is_unique(const struct bt_stream_class *stream_class,
	65	uint64_t id)
	66	{
	67	uint64_t i;
	68	bool is_unique = true;
	69
	70	for (i = 0; i < stream_class->event_classes->len; i++) {
	71	const struct bt_event_class *ec =
	72	stream_class->event_classes->pdata[i];
	73
	74	if (ec->id == id) {
	75	is_unique = false;
	76	goto end;
	77	}
	78	}
	79
	80	end:
	81	return is_unique;
	82	}
	83
	84	static
	85	struct bt_event_class *create_event_class_with_id(
	86	struct bt_stream_class *stream_class, uint64_t id)
	87	{
	88	int ret;
	89	struct bt_event_class *event_class;
	90
	91	BT_ASSERT(stream_class);
	92	BT_ASSERT_PRE("event-class-id-is-unique",
	93	event_class_id_is_unique(stream_class, id),
	94	"Duplicate event class ID: %![sc-]+S, id=%" PRIu64,
	95	stream_class, id);
	96	BT_LIB_LOGD("Creating event class object: %![sc-]+S, id=%" PRIu64,
	97	stream_class, id);
	98	event_class = g_new0(struct bt_event_class, 1);
	99	if (!event_class) {
	100	BT_LIB_LOGE_APPEND_CAUSE("Failed to allocate one event class.");
	101	goto error;
	102	}
	103
	104	bt_object_init_shared_with_parent(&event_class->base,
	105	destroy_event_class);
	106	event_class->user_attributes = bt_value_map_create();
	107	if (!event_class->user_attributes) {
	108	BT_LIB_LOGE_APPEND_CAUSE(
	109	"Failed to create a map value object.");
	110	goto error;
	111	}
	112
	113	event_class->id = id;
	114	bt_property_uint_init(&event_class->log_level,
	115	BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE, 0);
	116
	117	ret = bt_object_pool_initialize(&event_class->event_pool,
	118	(bt_object_pool_new_object_func) bt_event_new,
	119	(bt_object_pool_destroy_object_func) free_event,
	120	event_class);
	121	if (ret) {
	122	BT_LIB_LOGE_APPEND_CAUSE(
	123	"Failed to initialize event pool: ret=%d",
	124	ret);
	125	goto error;
	126	}
	127
	128	bt_object_set_parent(&event_class->base, &stream_class->base);
	129	g_ptr_array_add(stream_class->event_classes, event_class);
	130	bt_stream_class_freeze(stream_class);
	131	BT_LIB_LOGD("Created event class object: %!+E", event_class);
	132	goto end;
	133
	134	error:
	135	BT_OBJECT_PUT_REF_AND_RESET(event_class);
	136
	137	end:
	138	return event_class;
	139	}
	140
	141	BT_EXPORT
	142	struct bt_event_class *bt_event_class_create(
	143	struct bt_stream_class *stream_class)
	144	{
	145	BT_ASSERT_PRE_NO_ERROR();
	146	BT_ASSERT_PRE_SC_NON_NULL(stream_class);
	147	BT_ASSERT_PRE(
	148	"stream-class-automatically-assigns-event-class-ids",
	149	stream_class->assigns_automatic_event_class_id,
	150	"Stream class does not automatically assigns event class IDs: "
	151	"%![sc-]+S", stream_class);
	152	return create_event_class_with_id(stream_class,
	153	(uint64_t) stream_class->event_classes->len);
	154	}
	155
	156	BT_EXPORT
	157	struct bt_event_class *bt_event_class_create_with_id(
	158	struct bt_stream_class *stream_class, uint64_t id)
	159	{
	160	BT_ASSERT_PRE_NO_ERROR();
	161	BT_ASSERT_PRE(
	162	"stream-class-does-not-automatically-assigns-event-class-ids",
	163	!stream_class->assigns_automatic_event_class_id,
	164	"Stream class automatically assigns event class IDs: "
	165	"%![sc-]+S", stream_class);
	166	return create_event_class_with_id(stream_class, id);
	167	}
	168
	169	BT_EXPORT
	170	const char bt_event_class_get_namespace(const struct bt_event_class event_class)
	171	{
	172	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	173	BT_ASSERT_PRE_EC_MIP_VERSION_GE(event_class, 1);
	174	return event_class->ns;
	175	}
	176
	177	BT_EXPORT
	178	enum bt_event_class_set_namespace_status bt_event_class_set_namespace(
	179	struct bt_event_class event_class, const char ns)
	180	{
	181	BT_ASSERT_PRE_NO_ERROR();
	182	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	183	BT_ASSERT_PRE_EC_MIP_VERSION_GE(event_class, 1);
	184	BT_ASSERT_PRE_NAMESPACE_NON_NULL(ns);
	185	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	186	g_free(event_class->ns);
	187	event_class->ns = g_strdup(ns);
	188	BT_LIB_LOGD("Set event class's namespace: %!+E", event_class);
	189	return BT_FUNC_STATUS_OK;
	190	}
	191
	192	BT_EXPORT
	193	const char bt_event_class_get_name(const struct bt_event_class event_class)
	194	{
	195	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	196	return event_class->name;
	197	}
	198
	199	BT_EXPORT
	200	enum bt_event_class_set_name_status bt_event_class_set_name(
	201	struct bt_event_class event_class, const char name)
	202	{
	203	BT_ASSERT_PRE_NO_ERROR();
	204	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	205	BT_ASSERT_PRE_NAME_NON_NULL(name);
	206	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	207	g_free(event_class->name);
	208	event_class->name = g_strdup(name);
	209	BT_LIB_LOGD("Set event class's name: %!+E", event_class);
	210	return BT_FUNC_STATUS_OK;
	211	}
	212
	213	BT_EXPORT
	214	const char bt_event_class_get_uid(const struct bt_event_class event_class)
	215	{
	216	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	217	BT_ASSERT_PRE_EC_MIP_VERSION_GE(event_class, 1);
	218	return event_class->uid;
	219	}
	220
	221	BT_EXPORT
	222	enum bt_event_class_set_uid_status bt_event_class_set_uid(
	223	struct bt_event_class event_class, const char uid)
	224	{
	225	BT_ASSERT_PRE_NO_ERROR();
	226	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	227	BT_ASSERT_PRE_EC_MIP_VERSION_GE(event_class, 1);
	228	BT_ASSERT_PRE_NAME_NON_NULL(uid);
	229	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	230	g_free(event_class->uid);
	231	event_class->uid = g_strdup(uid);
	232	BT_LIB_LOGD("Set event class's UID: %!+E", event_class);
	233	return BT_FUNC_STATUS_OK;
	234	}
	235
	236	BT_EXPORT
	237	uint64_t bt_event_class_get_id(const struct bt_event_class *event_class)
	238	{
	239	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	240	return event_class->id;
	241	}
	242
	243	BT_EXPORT
	244	enum bt_property_availability bt_event_class_get_log_level(
	245	const struct bt_event_class *event_class,
	246	enum bt_event_class_log_level *log_level)
	247	{
	248	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	249	BT_ASSERT_PRE_DEV_NON_NULL("log-level-output", log_level,
	250	"Log level (output)");
	251	*log_level = (enum bt_event_class_log_level)
	252	event_class->log_level.value;
	253	return event_class->log_level.base.avail;
	254	}
	255
	256	BT_EXPORT
	257	void bt_event_class_set_log_level(
	258	struct bt_event_class *event_class,
	259	enum bt_event_class_log_level log_level)
	260	{
	261	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	262	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	263	bt_property_uint_set(&event_class->log_level,
	264	(uint64_t) log_level);
	265	BT_LIB_LOGD("Set event class's log level: %!+E", event_class);
	266	}
	267
	268	BT_EXPORT
	269	const char bt_event_class_get_emf_uri(const struct bt_event_class event_class)
	270	{
	271	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	272	return event_class->emf_uri;
	273	}
	274
	275	BT_EXPORT
	276	enum bt_event_class_set_emf_uri_status bt_event_class_set_emf_uri(
	277	struct bt_event_class *event_class,
	278	const char *emf_uri)
	279	{
	280	BT_ASSERT_PRE_NO_ERROR();
	281	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	282	BT_ASSERT_PRE_NON_NULL("emf-uri", emf_uri, "EMF URI");
	283	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	284	g_free(event_class->emf_uri);
	285	event_class->emf_uri = g_strdup(emf_uri);
	286	BT_LIB_LOGD("Set event class's EMF URI: %!+E", event_class);
	287	return BT_FUNC_STATUS_OK;
	288	}
	289
	290	BT_EXPORT
	291	struct bt_stream_class *bt_event_class_borrow_stream_class(
	292	struct bt_event_class *event_class)
	293	{
	294	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	295	return bt_event_class_borrow_stream_class_inline(event_class);
	296	}
	297
	298	BT_EXPORT
	299	const struct bt_stream_class *
	300	bt_event_class_borrow_stream_class_const(
	301	const struct bt_event_class *event_class)
	302	{
	303	return bt_event_class_borrow_stream_class((void *) event_class);
	304	}
	305
	306	BT_EXPORT
	307	const struct bt_field_class *
	308	bt_event_class_borrow_specific_context_field_class_const(
	309	const struct bt_event_class *event_class)
	310	{
	311	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	312	return event_class->specific_context_fc;
	313	}
	314
	315	BT_EXPORT
	316	struct bt_field_class *
	317	bt_event_class_borrow_specific_context_field_class(
	318	struct bt_event_class *event_class)
	319	{
	320	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	321	return event_class->specific_context_fc;
	322	}
	323
	324	BT_EXPORT
	325	enum bt_event_class_set_field_class_status
	326	bt_event_class_set_specific_context_field_class(
	327	struct bt_event_class *event_class,
	328	struct bt_field_class *field_class)
	329	{
	330	enum bt_event_class_set_field_class_status status;
	331	enum bt_resolve_field_xref_status resolve_status;
	332	struct bt_stream_class *stream_class;
	333	struct bt_resolve_field_xref_context resolve_ctx = {
	334	.packet_context = NULL,
	335	.event_common_context = NULL,
	336	.event_specific_context = field_class,
	337	.event_payload = NULL,
	338	};
	339
	340	BT_ASSERT_PRE_NO_ERROR();
	341	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	342	BT_ASSERT_PRE_FC_NON_NULL(field_class);
	343	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	344	BT_ASSERT_PRE_FC_IS_STRUCT("specific-context", field_class,
	345	"Specific context field class");
	346	stream_class = bt_event_class_borrow_stream_class_inline(
	347	event_class);
	348	resolve_ctx.packet_context = stream_class->packet_context_fc;
	349	resolve_ctx.event_common_context =
	350	stream_class->event_common_context_fc;
	351
	352	resolve_status = bt_resolve_field_paths(field_class, &resolve_ctx, __func__);
	353	if (resolve_status != BT_RESOLVE_FIELD_XREF_STATUS_OK) {
	354	status = (int) resolve_status;
	355	goto end;
	356	}
	357
	358	bt_field_class_make_part_of_trace_class(field_class);
	359	bt_object_put_ref(event_class->specific_context_fc);
	360	event_class->specific_context_fc = field_class;
	361	bt_object_get_ref_no_null_check(event_class->specific_context_fc);
	362	bt_field_class_freeze(field_class);
	363	BT_LIB_LOGD("Set event class's specific context field class: %!+E",
	364	event_class);
	365
	366	status = BT_EVENT_CLASS_SET_FIELD_CLASS_STATUS_OK;
	367
	368	end:
	369	return status;
	370	}
	371
	372	BT_EXPORT
	373	const struct bt_field_class *bt_event_class_borrow_payload_field_class_const(
	374	const struct bt_event_class *event_class)
	375	{
	376	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	377	return event_class->payload_fc;
	378	}
	379
	380	BT_EXPORT
	381	struct bt_field_class *bt_event_class_borrow_payload_field_class(
	382	struct bt_event_class *event_class)
	383	{
	384	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	385	return event_class->payload_fc;
	386	}
	387
	388	BT_EXPORT
	389	enum bt_event_class_set_field_class_status
	390	bt_event_class_set_payload_field_class(
	391	struct bt_event_class *event_class,
	392	struct bt_field_class *field_class)
	393	{
	394	enum bt_event_class_set_field_class_status status;
	395	enum bt_resolve_field_xref_status resolve_status;
	396	struct bt_stream_class *stream_class;
	397	struct bt_resolve_field_xref_context resolve_ctx = {
	398	.packet_context = NULL,
	399	.event_common_context = NULL,
	400	.event_specific_context = NULL,
	401	.event_payload = field_class,
	402	};
	403
	404	BT_ASSERT_PRE_NO_ERROR();
	405	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	406	BT_ASSERT_PRE_FC_NON_NULL(field_class);
	407	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	408	BT_ASSERT_PRE_FC_IS_STRUCT("payload", field_class, "Payload field class");
	409	stream_class = bt_event_class_borrow_stream_class_inline(
	410	event_class);
	411	resolve_ctx.packet_context = stream_class->packet_context_fc;
	412	resolve_ctx.event_common_context =
	413	stream_class->event_common_context_fc;
	414	resolve_ctx.event_specific_context = event_class->specific_context_fc;
	415
	416	resolve_status = bt_resolve_field_paths(field_class, &resolve_ctx, __func__);
	417	if (resolve_status != BT_RESOLVE_FIELD_XREF_STATUS_OK) {
	418	status = (int) resolve_status;
	419	goto end;
	420	}
	421
	422	bt_field_class_make_part_of_trace_class(field_class);
	423	bt_object_put_ref(event_class->payload_fc);
	424	event_class->payload_fc = field_class;
	425	bt_object_get_ref_no_null_check(event_class->payload_fc);
	426	bt_field_class_freeze(field_class);
	427	BT_LIB_LOGD("Set event class's payload field class: %!+E", event_class);
	428
	429	status = BT_EVENT_CLASS_SET_FIELD_CLASS_STATUS_OK;
	430
	431	end:
	432	return status;
	433	}
	434
	435	void _bt_event_class_freeze(const struct bt_event_class *event_class)
	436	{
	437	/* The field classes are already frozen */
	438	BT_ASSERT(event_class);
	439	BT_LIB_LOGD("Freezing event class's user attributes: %!+v",
	440	event_class->user_attributes);
	441	bt_value_freeze(event_class->user_attributes);
	442	BT_LIB_LOGD("Freezing event class: %!+E", event_class);
	443	((struct bt_event_class *) event_class)->frozen = true;
	444	}
	445
	446	BT_EXPORT
	447	const struct bt_value *bt_event_class_borrow_user_attributes_const(
	448	const struct bt_event_class *event_class)
	449	{
	450	BT_ASSERT_PRE_DEV_EC_NON_NULL(event_class);
	451	return event_class->user_attributes;
	452	}
	453
	454	BT_EXPORT
	455	struct bt_value *bt_event_class_borrow_user_attributes(
	456	struct bt_event_class *event_class)
	457	{
	458	return (void *) bt_event_class_borrow_user_attributes_const(
	459	(void *) event_class);
	460	}
	461
	462	BT_EXPORT
	463	void bt_event_class_set_user_attributes(
	464	struct bt_event_class *event_class,
	465	const struct bt_value *user_attributes)
	466	{
	467	BT_ASSERT_PRE_EC_NON_NULL(event_class);
	468	BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
	469	BT_ASSERT_PRE_USER_ATTRS_NON_NULL(user_attributes);
	470	BT_ASSERT_PRE_USER_ATTRS_IS_MAP(user_attributes);
	471	bt_object_put_ref_no_null_check(event_class->user_attributes);
	472	event_class->user_attributes = (void *) user_attributes;
	473	bt_object_get_ref_no_null_check(event_class->user_attributes);
	474	}
	475
	476	BT_EXPORT
	477	void bt_event_class_get_ref(const struct bt_event_class *event_class)
	478	{
	479	bt_object_get_ref(event_class);
	480	}
	481
	482	BT_EXPORT
	483	void bt_event_class_put_ref(const struct bt_event_class *event_class)
	484	{
	485	bt_object_put_ref(event_class);
	486	}