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

/*
 * event-class.c
 *
 * Babeltrace CTF IR - Event class
 *
 * 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/ctf-ir/clock-value-internal.h>
#include <babeltrace/ctf-ir/fields-internal.h>
#include <babeltrace/ctf-ir/field-types.h>
#include <babeltrace/ctf-ir/field-types-internal.h>
#include <babeltrace/ctf-ir/event-class.h>
#include <babeltrace/ctf-ir/event-class-internal.h>
#include <babeltrace/ctf-ir/event-internal.h>
#include <babeltrace/ctf-ir/stream-class.h>
#include <babeltrace/ctf-ir/stream-class-internal.h>
#include <babeltrace/ctf-ir/trace-internal.h>
#include <babeltrace/ctf-ir/utils-internal.h>
#include <babeltrace/ctf-ir/resolve-field-path-internal.h>
#include <babeltrace/ref.h>
#include <babeltrace/ctf-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((_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 type.");
	bt_put(event_class->specific_context_ft);
	BT_LOGD_STR("Putting payload field type.");
	bt_put(event_class->payload_ft);
	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_PUT(event_class);

end:
	return event_class;
}

struct bt_event_class *bt_event_class_create(
		struct bt_stream_class *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 create_event_class_with_id(stream_class,
		(uint64_t) stream_class->event_classes->len);
}

struct bt_event_class *bt_event_class_create_with_id(
		struct bt_stream_class *stream_class, uint64_t id)
{
	BT_ASSERT_PRE(!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);
}

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_event_class_set_name(struct bt_event_class *event_class,
		const char *name)
{
	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_event_class_set_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_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_event_class_set_emf_uri(struct bt_event_class *event_class,
		const char *emf_uri)
{
	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_field_type *bt_event_class_borrow_specific_context_field_type(
		struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	return event_class->specific_context_ft;
}

int bt_event_class_set_specific_context_field_type(
		struct bt_event_class *event_class,
		struct bt_field_type *field_type)
{
	int ret;
	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_type,
		.event_payload = NULL,
	};

	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	BT_ASSERT_PRE_NON_NULL(field_type, "Field type");
	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	BT_ASSERT_PRE(bt_field_type_get_type_id(field_type) ==
		BT_FIELD_TYPE_ID_STRUCTURE,
		"Specific context field type is not a structure field type: "
		"%!+F", field_type);
	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_ft;
	resolve_ctx.packet_context = stream_class->packet_context_ft;
	resolve_ctx.event_header = stream_class->event_header_ft;
	resolve_ctx.event_common_context =
		stream_class->event_common_context_ft;

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

	bt_field_type_make_part_of_trace(field_type);
	bt_put(event_class->specific_context_ft);
	event_class->specific_context_ft = bt_get(field_type);
	bt_field_type_freeze(field_type);
	BT_LIB_LOGV("Set event class's specific context field type: %!+E",
		event_class);

end:
	return ret;
}

struct bt_field_type *bt_event_class_borrow_payload_field_type(
		struct bt_event_class *event_class)
{
	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	return event_class->payload_ft;
}

int bt_event_class_set_payload_field_type(struct bt_event_class *event_class,
		struct bt_field_type *field_type)
{
	int ret;
	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_type,
	};

	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	BT_ASSERT_PRE_NON_NULL(field_type, "Field type");
	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	BT_ASSERT_PRE(bt_field_type_get_type_id(field_type) ==
		BT_FIELD_TYPE_ID_STRUCTURE,
		"Payload field type is not a structure field type: %!+F",
		field_type);
	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_ft;
	resolve_ctx.packet_context = stream_class->packet_context_ft;
	resolve_ctx.event_header = stream_class->event_header_ft;
	resolve_ctx.event_common_context =
		stream_class->event_common_context_ft;
	resolve_ctx.event_specific_context = event_class->specific_context_ft;

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

	bt_field_type_make_part_of_trace(field_type);
	bt_put(event_class->payload_ft);
	event_class->payload_ft = bt_get(field_type);
	bt_field_type_freeze(field_type);
	BT_LIB_LOGV("Set event class's payload field type: %!+E", event_class);

end:
	return ret;
}

BT_HIDDEN
void _bt_event_class_freeze(struct bt_event_class *event_class)
{
	/* The field types are already frozen */
	BT_ASSERT(event_class);
	BT_LIB_LOGD("Freezing event class: %!+E", event_class);
	event_class->frozen = true;
}
Commit	Line	Data
272df73e PP	1	/*
	2	* event-class.c
	3	*
	4	* Babeltrace CTF IR - Event class
	5	*
	6	* Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
	7	*
	8	* Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
	9	*
	10	* Permission is hereby granted, free of charge, to any person obtaining a copy
	11	* of this software and associated documentation files (the "Software"), to deal
	12	* in the Software without restriction, including without limitation the rights
	13	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	14	* copies of the Software, and to permit persons to whom the Software is
	15	* furnished to do so, subject to the following conditions:
	16	*
	17	* The above copyright notice and this permission notice shall be included in
	18	* all copies or substantial portions of the Software.
	19	*
	20	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	21	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	23	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	24	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	25	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	26	* SOFTWARE.
	27	*/
	28
f8b979f9 PP	29	#define BT_LOG_TAG "EVENT-CLASS"
	30	#include <babeltrace/lib-logging-internal.h>
	31
3dca2276	32	#include <babeltrace/assert-pre-internal.h>
312c056a	33	#include <babeltrace/ctf-ir/clock-value-internal.h>
272df73e	34	#include <babeltrace/ctf-ir/fields-internal.h>
44c440bc	35	#include <babeltrace/ctf-ir/field-types.h>
272df73e PP	36	#include <babeltrace/ctf-ir/field-types-internal.h>
	37	#include <babeltrace/ctf-ir/event-class.h>
	38	#include <babeltrace/ctf-ir/event-class-internal.h>
312c056a	39	#include <babeltrace/ctf-ir/event-internal.h>
272df73e PP	40	#include <babeltrace/ctf-ir/stream-class.h>
	41	#include <babeltrace/ctf-ir/stream-class-internal.h>
	42	#include <babeltrace/ctf-ir/trace-internal.h>
2a3ced3c	43	#include <babeltrace/ctf-ir/utils-internal.h>
44c440bc	44	#include <babeltrace/ctf-ir/resolve-field-path-internal.h>
272df73e PP	45	#include <babeltrace/ref.h>
272df73e PP	46	#include <babeltrace/ctf-ir/attributes-internal.h>
3d9990ac PP	47	#include <babeltrace/compiler-internal.h>
3d9990ac PP	48	#include <babeltrace/endian-internal.h>
c55a9f58	49	#include <babeltrace/types.h>
f8b979f9	50	#include <babeltrace/values-internal.h>
f6ccaed9	51	#include <babeltrace/assert-internal.h>
dc3fffef	52	#include <inttypes.h>
0fbb9a9f	53	#include <stdlib.h>
272df73e	54
44c440bc PP	55	#define BT_ASSERT_PRE_EVENT_CLASS_HOT(_ec) \
	56	BT_ASSERT_PRE_HOT((_ec), "Event class", ": %!+E", (_ec))
	57
	58	static
	59	void destroy_event_class(struct bt_object *obj)
272df73e	60	{
44c440bc	61	struct bt_event_class event_class = (void ) obj;
272df73e	62
44c440bc	63	BT_LIB_LOGD("Destroying event class: %!+E", event_class);
f8b979f9	64
44c440bc PP	65	if (event_class->name.str) {
44c440bc PP	66	g_string_free(event_class->name.str, TRUE);
cf76ce92 PP	67	}
cf76ce92 PP	68
44c440bc PP	69	if (event_class->emf_uri.str) {
44c440bc PP	70	g_string_free(event_class->emf_uri.str, TRUE);
272df73e PP	71	}
272df73e PP	72
3dca2276	73	BT_LOGD_STR("Putting context field type.");
44c440bc	74	bt_put(event_class->specific_context_ft);
3dca2276	75	BT_LOGD_STR("Putting payload field type.");
44c440bc	76	bt_put(event_class->payload_ft);
312c056a	77	bt_object_pool_finalize(&event_class->event_pool);
3dca2276	78	g_free(obj);
272df73e PP	79	}
272df73e PP	80
312c056a PP	81	static
	82	void free_event(struct bt_event *event,
	83	struct bt_event_class *event_class)
	84	{
	85	bt_event_destroy(event);
	86	}
	87
44c440bc PP	88	BT_ASSERT_PRE_FUNC
	89	static
	90	bool event_class_id_is_unique(struct bt_stream_class *stream_class, uint64_t id)
272df73e	91	{
44c440bc PP	92	uint64_t i;
44c440bc PP	93	bool is_unique = true;
272df73e	94
44c440bc PP	95	for (i = 0; i < stream_class->event_classes->len; i++) {
	96	struct bt_event_class *ec =
	97	stream_class->event_classes->pdata[i];
	98
	99	if (ec->id == id) {
	100	is_unique = false;
	101	goto end;
	102	}
cf76ce92	103	}
272df73e	104
44c440bc PP	105	end:
	106	return is_unique;
	107	}
	108
	109	static
	110	struct bt_event_class *create_event_class_with_id(
	111	struct bt_stream_class *stream_class, uint64_t id)
	112	{
	113	int ret;
	114	struct bt_event_class *event_class;
	115
	116	BT_ASSERT(stream_class);
	117	BT_ASSERT_PRE(event_class_id_is_unique(stream_class, id),
	118	"Duplicate event class ID: %![sc-]+S, id=%" PRIu64,
	119	stream_class, id);
	120	BT_LIB_LOGD("Creating event class object: %![sc-]+S, id=%" PRIu64,
	121	stream_class, id);
3dca2276	122	event_class = g_new0(struct bt_event_class, 1);
272df73e	123	if (!event_class) {
3dca2276 PP	124	BT_LOGE_STR("Failed to allocate one event class.");
3dca2276 PP	125	goto error;
272df73e PP	126	}
272df73e PP	127
44c440bc PP	128	bt_object_init_shared_with_parent(&event_class->base,
	129	destroy_event_class);
	130	event_class->id = id;
	131	bt_property_uint_init(&event_class->log_level,
	132	BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE, 0);
	133	event_class->name.str = g_string_new(NULL);
	134	if (!event_class->name.str) {
	135	BT_LOGE_STR("Failed to allocate a GString.");
	136	ret = -1;
	137	goto end;
	138	}
	139
	140	event_class->emf_uri.str = g_string_new(NULL);
	141	if (!event_class->emf_uri.str) {
	142	BT_LOGE_STR("Failed to allocate a GString.");
	143	ret = -1;
	144	goto end;
272df73e PP	145	}
272df73e PP	146
312c056a PP	147	ret = bt_object_pool_initialize(&event_class->event_pool,
	148	(bt_object_pool_new_object_func) bt_event_new,
	149	(bt_object_pool_destroy_object_func) free_event,
	150	event_class);
	151	if (ret) {
	152	BT_LOGE("Failed to initialize event pool: ret=%d",
	153	ret);
	154	goto error;
	155	}
	156
44c440bc PP	157	bt_object_set_parent(&event_class->base, &stream_class->base);
	158	g_ptr_array_add(stream_class->event_classes, event_class);
	159	bt_stream_class_freeze(stream_class);
	160	BT_LIB_LOGD("Created event class object: %!+E", event_class);
3dca2276	161	goto end;
272df73e	162
3dca2276	163	error:
44c440bc	164	BT_PUT(event_class);
272df73e PP	165
272df73e PP	166	end:
3dca2276	167	return event_class;
272df73e PP	168	}
272df73e PP	169
44c440bc PP	170	struct bt_event_class *bt_event_class_create(
	171	struct bt_stream_class *stream_class)
	172	{
	173	BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
	174	BT_ASSERT_PRE(stream_class->assigns_automatic_event_class_id,
	175	"Stream class does not automatically assigns event class IDs: "
	176	"%![sc-]+S", stream_class);
	177	return create_event_class_with_id(stream_class,
	178	(uint64_t) stream_class->event_classes->len);
	179	}
	180
	181	struct bt_event_class *bt_event_class_create_with_id(
	182	struct bt_stream_class *stream_class, uint64_t id)
	183	{
	184	BT_ASSERT_PRE(!stream_class->assigns_automatic_event_class_id,
	185	"Stream class automatically assigns event class IDs: "
	186	"%![sc-]+S", stream_class);
	187	return create_event_class_with_id(stream_class, id);
	188	}
	189
3dca2276	190	const char bt_event_class_get_name(struct bt_event_class event_class)
272df73e	191	{
cb6f1f7d	192	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
44c440bc	193	return event_class->name.value;
272df73e PP	194	}
272df73e PP	195
44c440bc PP	196	int bt_event_class_set_name(struct bt_event_class *event_class,
44c440bc PP	197	const char *name)
272df73e	198	{
cb6f1f7d	199	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
44c440bc PP	200	BT_ASSERT_PRE_NON_NULL(name, "Name");
	201	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	202	g_string_assign(event_class->name.str, name);
	203	event_class->name.value = event_class->name.str->str;
	204	BT_LIB_LOGV("Set event class's name: %!+E", event_class);
	205	return 0;
272df73e PP	206	}
272df73e PP	207
44c440bc	208	uint64_t bt_event_class_get_id(struct bt_event_class *event_class)
272df73e	209	{
44c440bc PP	210	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
44c440bc PP	211	return event_class->id;
272df73e PP	212	}
272df73e PP	213
44c440bc PP	214	enum bt_property_availability bt_event_class_get_log_level(
	215	struct bt_event_class *event_class,
	216	enum bt_event_class_log_level *log_level)
272df73e	217	{
cb6f1f7d	218	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
44c440bc PP	219	BT_ASSERT_PRE_NON_NULL(log_level, "Log level (output)");
	220	*log_level = (enum bt_event_class_log_level)
	221	event_class->log_level.value;
	222	return event_class->log_level.base.avail;
272df73e PP	223	}
272df73e PP	224
3dca2276 PP	225	int bt_event_class_set_log_level(struct bt_event_class *event_class,
3dca2276 PP	226	enum bt_event_class_log_level log_level)
272df73e	227	{
44c440bc PP	228	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	229	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	230	bt_property_uint_set(&event_class->log_level,
	231	(uint64_t) log_level);
	232	BT_LIB_LOGV("Set event class's log level: %!+E", event_class);
	233	return 0;
272df73e PP	234	}
272df73e PP	235
3dca2276	236	const char bt_event_class_get_emf_uri(struct bt_event_class event_class)
272df73e	237	{
cb6f1f7d	238	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
44c440bc	239	return event_class->emf_uri.value;
272df73e PP	240	}
272df73e PP	241
3dca2276 PP	242	int bt_event_class_set_emf_uri(struct bt_event_class *event_class,
3dca2276 PP	243	const char *emf_uri)
272df73e	244	{
44c440bc PP	245	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	246	BT_ASSERT_PRE_NON_NULL(emf_uri, "EMF URI");
	247	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	248	g_string_assign(event_class->emf_uri.str, emf_uri);
	249	event_class->emf_uri.value = event_class->emf_uri.str->str;
	250	BT_LIB_LOGV("Set event class's EMF URI: %!+E", event_class);
	251	return 0;
272df73e PP	252	}
272df73e PP	253
094ff7c0	254	struct bt_stream_class *bt_event_class_borrow_stream_class(
50842bdc	255	struct bt_event_class *event_class)
272df73e	256	{
d975f66c	257	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
44c440bc	258	return bt_event_class_borrow_stream_class_inline(event_class);
272df73e PP	259	}
272df73e PP	260
44c440bc	261	struct bt_field_type *bt_event_class_borrow_specific_context_field_type(
3dca2276	262	struct bt_event_class *event_class)
272df73e	263	{
cb6f1f7d	264	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
44c440bc	265	return event_class->specific_context_ft;
272df73e PP	266	}
272df73e PP	267
44c440bc PP	268	int bt_event_class_set_specific_context_field_type(
44c440bc PP	269	struct bt_event_class *event_class,
3dca2276	270	struct bt_field_type *field_type)
272df73e	271	{
44c440bc PP	272	int ret;
	273	struct bt_stream_class *stream_class;
	274	struct bt_trace *trace;
	275	struct bt_resolve_field_path_context resolve_ctx = {
	276	.packet_header = NULL,
	277	.packet_context = NULL,
	278	.event_header = NULL,
	279	.event_common_context = NULL,
	280	.event_specific_context = field_type,
	281	.event_payload = NULL,
	282	};
cb6f1f7d	283
44c440bc PP	284	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	285	BT_ASSERT_PRE_NON_NULL(field_type, "Field type");
	286	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	287	BT_ASSERT_PRE(bt_field_type_get_type_id(field_type) ==
	288	BT_FIELD_TYPE_ID_STRUCTURE,
	289	"Specific context field type is not a structure field type: "
	290	"%!+F", field_type);
	291	stream_class = bt_event_class_borrow_stream_class_inline(
	292	event_class);
	293	trace = bt_stream_class_borrow_trace_inline(stream_class);
	294	resolve_ctx.packet_header = trace->packet_header_ft;
	295	resolve_ctx.packet_context = stream_class->packet_context_ft;
	296	resolve_ctx.event_header = stream_class->event_header_ft;
	297	resolve_ctx.event_common_context =
	298	stream_class->event_common_context_ft;
	299
	300	ret = bt_resolve_field_paths(field_type, &resolve_ctx);
	301	if (ret) {
cb6f1f7d PP	302	goto end;
	303	}
	304
44c440bc PP	305	bt_field_type_make_part_of_trace(field_type);
	306	bt_put(event_class->specific_context_ft);
	307	event_class->specific_context_ft = bt_get(field_type);
	308	bt_field_type_freeze(field_type);
	309	BT_LIB_LOGV("Set event class's specific context field type: %!+E",
	310	event_class);
cb6f1f7d	311
cb6f1f7d PP	312	end:
cb6f1f7d PP	313	return ret;
272df73e PP	314	}
272df73e PP	315
44c440bc	316	struct bt_field_type *bt_event_class_borrow_payload_field_type(
3dca2276	317	struct bt_event_class *event_class)
272df73e	318	{
cb6f1f7d	319	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
44c440bc	320	return event_class->payload_ft;
272df73e PP	321	}
272df73e PP	322
44c440bc	323	int bt_event_class_set_payload_field_type(struct bt_event_class *event_class,
3dca2276	324	struct bt_field_type *field_type)
272df73e	325	{
44c440bc PP	326	int ret;
	327	struct bt_stream_class *stream_class;
	328	struct bt_trace *trace;
	329	struct bt_resolve_field_path_context resolve_ctx = {
	330	.packet_header = NULL,
	331	.packet_context = NULL,
	332	.event_header = NULL,
	333	.event_common_context = NULL,
	334	.event_specific_context = NULL,
	335	.event_payload = field_type,
	336	};
cb6f1f7d	337
44c440bc PP	338	BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
	339	BT_ASSERT_PRE_NON_NULL(field_type, "Field type");
	340	BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
	341	BT_ASSERT_PRE(bt_field_type_get_type_id(field_type) ==
	342	BT_FIELD_TYPE_ID_STRUCTURE,
	343	"Payload field type is not a structure field type: %!+F",
	344	field_type);
	345	stream_class = bt_event_class_borrow_stream_class_inline(
	346	event_class);
	347	trace = bt_stream_class_borrow_trace_inline(stream_class);
	348	resolve_ctx.packet_header = trace->packet_header_ft;
	349	resolve_ctx.packet_context = stream_class->packet_context_ft;
	350	resolve_ctx.event_header = stream_class->event_header_ft;
	351	resolve_ctx.event_common_context =
	352	stream_class->event_common_context_ft;
	353	resolve_ctx.event_specific_context = event_class->specific_context_ft;
	354
	355	ret = bt_resolve_field_paths(field_type, &resolve_ctx);
	356	if (ret) {
cb6f1f7d PP	357	goto end;
	358	}
	359
44c440bc PP	360	bt_field_type_make_part_of_trace(field_type);
	361	bt_put(event_class->payload_ft);
	362	event_class->payload_ft = bt_get(field_type);
	363	bt_field_type_freeze(field_type);
	364	BT_LIB_LOGV("Set event class's payload field type: %!+E", event_class);
cb6f1f7d PP	365
	366	end:
	367	return ret;
272df73e PP	368	}
	369
	370	BT_HIDDEN
44c440bc	371	void _bt_event_class_freeze(struct bt_event_class *event_class)
2a3ced3c	372	{
44c440bc	373	/* The field types are already frozen */
f6ccaed9	374	BT_ASSERT(event_class);
44c440bc PP	375	BT_LIB_LOGD("Freezing event class: %!+E", event_class);
44c440bc PP	376	event_class->frozen = true;
2a3ced3c	377	}