[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.
 */

#include <babeltrace/ctf-ir/fields-internal.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/stream-class.h>
#include <babeltrace/ctf-ir/stream-class-internal.h>
#include <babeltrace/ctf-ir/trace-internal.h>
#include <babeltrace/ctf-ir/validation-internal.h>
#include <babeltrace/ctf-ir/utils.h>
#include <babeltrace/ref.h>
#include <babeltrace/ctf-ir/attributes-internal.h>
#include <babeltrace/compiler.h>
#include <babeltrace/endian.h>
#include <inttypes.h>

static
void bt_ctf_event_class_destroy(struct bt_object *obj);

struct bt_ctf_event_class *bt_ctf_event_class_create(const char *name)
{
	int ret;
	struct bt_value *obj = NULL;
	struct bt_ctf_event_class *event_class = NULL;

	if (bt_ctf_validate_identifier(name)) {
		goto error;
	}

	event_class = g_new0(struct bt_ctf_event_class, 1);
	if (!event_class) {
		goto error;
	}

	event_class->id = -1;
	bt_object_init(event_class, bt_ctf_event_class_destroy);
	event_class->fields = bt_ctf_field_type_structure_create();
	if (!event_class->fields) {
		goto error;
	}

	event_class->attributes = bt_ctf_attributes_create();
	if (!event_class->attributes) {
		goto error;
	}

	obj = bt_value_integer_create_init(-1);
	if (!obj) {
		goto error;
	}

	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
		"id", obj);
	if (ret) {
		goto error;
	}

	BT_PUT(obj);

	obj = bt_value_string_create_init(name);
	if (!obj) {
		goto error;
	}

	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
		"name", obj);
	if (ret) {
		goto error;
	}

	BT_PUT(obj);

	return event_class;

error:
        BT_PUT(event_class);
	BT_PUT(obj);
	return event_class;
}

const char *bt_ctf_event_class_get_name(struct bt_ctf_event_class *event_class)
{
	struct bt_value *obj = NULL;
	const char *name = NULL;

	if (!event_class) {
		goto end;
	}

	if (event_class->name) {
		name = event_class->name;
		goto end;
	}

	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
		BT_CTF_EVENT_CLASS_ATTR_NAME_INDEX);
	if (!obj) {
		goto end;
	}

	if (bt_value_string_get(obj, &name)) {
		name = NULL;
	}

end:
	BT_PUT(obj);
	return name;
}

int64_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class)
{
	struct bt_value *obj = NULL;
	int64_t ret = 0;

	if (!event_class) {
		ret = -1;
		goto end;
	}

	if (event_class->id >= 0) {
		ret = event_class->id;
		goto end;
	}

	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
		BT_CTF_EVENT_CLASS_ATTR_ID_INDEX);
	if (!obj) {
		goto end;
	}

	if (bt_value_integer_get(obj, &ret)) {
		ret = -1;
	}

	if (ret < 0) {
		/* means ID is not set */
		ret = -1;
		goto end;
	}

end:
	BT_PUT(obj);
	return ret;
}

int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
		uint32_t id)
{
	int ret = 0;
	struct bt_value *obj = NULL;
	struct bt_ctf_stream_class *stream_class = NULL;


	if (!event_class) {
		ret = -1;
		goto end;
	}

	stream_class = bt_ctf_event_class_get_stream_class(event_class);
	if (stream_class) {
		/*
		 * We don't allow changing the id if the event class has already
		 * been added to a stream class.
		 */
		ret = -1;
		goto end;
	}

	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
		BT_CTF_EVENT_CLASS_ATTR_ID_INDEX);
	if (!obj) {
		goto end;
	}

	if (bt_value_integer_set(obj, id)) {
		ret = -1;
		goto end;
	}

end:
	BT_PUT(obj);
	BT_PUT(stream_class);
	return ret;
}

int bt_ctf_event_class_set_attribute(
		struct bt_ctf_event_class *event_class, const char *name,
		struct bt_value *value)
{
	int ret = 0;

	if (!event_class || !name || !value || event_class->frozen) {
		ret = -1;
		goto end;
	}

	if (!strcmp(name, "id") || !strcmp(name, "loglevel") ||
			!strcmp(name, "stream_id")) {
		if (!bt_value_is_integer(value)) {
			ret = -1;
			goto end;
		}
	} else if (!strcmp(name, "name") || !strcmp(name, "model.emf.uri") ||
			!strcmp(name, "loglevel_string")) {
		if (!bt_value_is_string(value)) {
			ret = -1;
			goto end;
		}
	} else {
		/* unknown attribute */
		ret = -1;
		goto end;
	}

	/* "id" special case: >= 0 */
	if (!strcmp(name, "id")) {
		int64_t val;

		ret = bt_value_integer_get(value, &val);

		if (ret) {
			goto end;
		}

		if (val < 0) {
			ret = -1;
			goto end;
		}
	}

	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
			name, value);

end:
	return ret;
}

int bt_ctf_event_class_get_attribute_count(
		struct bt_ctf_event_class *event_class)
{
	int ret = 0;

	if (!event_class) {
		ret = -1;
		goto end;
	}

	ret = bt_ctf_attributes_get_count(event_class->attributes);

end:
	return ret;
}

const char *
bt_ctf_event_class_get_attribute_name(
		struct bt_ctf_event_class *event_class, int index)
{
	const char *ret;

	if (!event_class) {
		ret = NULL;
		goto end;
	}

	ret = bt_ctf_attributes_get_field_name(event_class->attributes, index);

end:
	return ret;
}

struct bt_value *
bt_ctf_event_class_get_attribute_value(struct bt_ctf_event_class *event_class,
		int index)
{
	struct bt_value *ret;

	if (!event_class) {
		ret = NULL;
		goto end;
	}

	ret = bt_ctf_attributes_get_field_value(event_class->attributes, index);

end:
	return ret;
}

struct bt_value *
bt_ctf_event_class_get_attribute_value_by_name(
		struct bt_ctf_event_class *event_class, const char *name)
{
	struct bt_value *ret;

	if (!event_class || !name) {
		ret = NULL;
		goto end;
	}

	ret = bt_ctf_attributes_get_field_value_by_name(event_class->attributes,
		name);

end:
	return ret;

}

struct bt_ctf_stream_class *bt_ctf_event_class_get_stream_class(
		struct bt_ctf_event_class *event_class)
{
	return event_class ?
		bt_get(bt_ctf_event_class_borrow_stream_class(event_class)) :
		NULL;
}

struct bt_ctf_field_type *bt_ctf_event_class_get_payload_type(
		struct bt_ctf_event_class *event_class)
{
	struct bt_ctf_field_type *payload = NULL;

	if (!event_class) {
		goto end;
	}

	bt_get(event_class->fields);
	payload = event_class->fields;
end:
	return payload;
}

int bt_ctf_event_class_set_payload_type(struct bt_ctf_event_class *event_class,
		struct bt_ctf_field_type *payload)
{
	int ret = 0;

	if (!event_class) {
		ret = -1;
		goto end;
	}

	if (payload && bt_ctf_field_type_get_type_id(payload) !=
			BT_CTF_FIELD_TYPE_ID_STRUCT) {
		ret = -1;
		goto end;
	}

	bt_put(event_class->fields);
	event_class->fields = bt_get(payload);
end:
	return ret;
}

int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
		struct bt_ctf_field_type *type,
		const char *name)
{
	int ret = 0;

	if (!event_class || !type || bt_ctf_validate_identifier(name) ||
		event_class->frozen) {
		ret = -1;
		goto end;
	}

	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
		BT_CTF_FIELD_TYPE_ID_STRUCT) {
		ret = -1;
		goto end;
	}

	ret = bt_ctf_field_type_structure_add_field(event_class->fields,
		type, name);
end:
	return ret;
}

int bt_ctf_event_class_get_field_count(
		struct bt_ctf_event_class *event_class)
{
	int ret;

	if (!event_class) {
		ret = -1;
		goto end;
	}

	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
		BT_CTF_FIELD_TYPE_ID_STRUCT) {
		ret = -1;
		goto end;
	}

	ret = bt_ctf_field_type_structure_get_field_count(event_class->fields);
end:
	return ret;
}

int bt_ctf_event_class_get_field(struct bt_ctf_event_class *event_class,
		const char **field_name, struct bt_ctf_field_type **field_type,
		int index)
{
	int ret;

	if (!event_class || index < 0) {
		ret = -1;
		goto end;
	}

	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
		BT_CTF_FIELD_TYPE_ID_STRUCT) {
		ret = -1;
		goto end;
	}

	ret = bt_ctf_field_type_structure_get_field(event_class->fields,
		field_name, field_type, index);
end:
	return ret;
}

struct bt_ctf_field_type *bt_ctf_event_class_get_field_by_name(
		struct bt_ctf_event_class *event_class, const char *name)
{
	GQuark name_quark;
	struct bt_ctf_field_type *field_type = NULL;

	if (!event_class || !name) {
		goto end;
	}

	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
		BT_CTF_FIELD_TYPE_ID_STRUCT) {
		goto end;
	}

	name_quark = g_quark_try_string(name);
	if (!name_quark) {
		goto end;
	}

	/*
	 * No need to increment field_type's reference count since getting it
	 * from the structure already does.
	 */
	field_type = bt_ctf_field_type_structure_get_field_type_by_name(
		event_class->fields, name);
end:
	return field_type;
}

struct bt_ctf_field_type *bt_ctf_event_class_get_context_type(
		struct bt_ctf_event_class *event_class)
{
	struct bt_ctf_field_type *context_type = NULL;

	if (!event_class || !event_class->context) {
		goto end;
	}

	bt_get(event_class->context);
	context_type = event_class->context;
end:
	return context_type;
}

int bt_ctf_event_class_set_context_type(
		struct bt_ctf_event_class *event_class,
		struct bt_ctf_field_type *context)
{
	int ret = 0;

	if (!event_class || event_class->frozen) {
		ret = -1;
		goto end;
	}

	if (context && bt_ctf_field_type_get_type_id(context) !=
			BT_CTF_FIELD_TYPE_ID_STRUCT) {
		ret = -1;
		goto end;
	}

	bt_put(event_class->context);
	event_class->context = bt_get(context);
end:
	return ret;

}

void bt_ctf_event_class_get(struct bt_ctf_event_class *event_class)
{
	bt_get(event_class);
}

void bt_ctf_event_class_put(struct bt_ctf_event_class *event_class)
{
	bt_put(event_class);
}

BT_HIDDEN
int bt_ctf_event_class_set_stream_id(struct bt_ctf_event_class *event_class,
		uint32_t stream_id)
{
	int ret = 0;
	struct bt_value *obj;

	obj = bt_value_integer_create_init(stream_id);

	if (!obj) {
		ret = -1;
		goto end;
	}

	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
		"stream_id", obj);

	if (event_class->frozen) {
		bt_ctf_attributes_freeze(event_class->attributes);
	}

end:
	BT_PUT(obj);
	return ret;
}

static
void bt_ctf_event_class_destroy(struct bt_object *obj)
{
	struct bt_ctf_event_class *event_class;

	event_class = container_of(obj, struct bt_ctf_event_class, base);
	bt_ctf_attributes_destroy(event_class->attributes);
	bt_put(event_class->context);
	bt_put(event_class->fields);
	g_free(event_class);
}

BT_HIDDEN
void bt_ctf_event_class_freeze(struct bt_ctf_event_class *event_class)
{
	assert(event_class);
	event_class->frozen = 1;
	event_class->name = bt_ctf_event_class_get_name(event_class);
	event_class->id = bt_ctf_event_class_get_id(event_class);
	bt_ctf_field_type_freeze(event_class->context);
	bt_ctf_field_type_freeze(event_class->fields);
	bt_ctf_attributes_freeze(event_class->attributes);
}

BT_HIDDEN
int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
		struct metadata_context *context)
{
	int i;
	int count;
	int ret = 0;
	struct bt_value *attr_value = NULL;

	assert(event_class);
	assert(context);

	context->current_indentation_level = 1;
	g_string_assign(context->field_name, "");
	g_string_append(context->string, "event {\n");
	count = bt_ctf_event_class_get_attribute_count(event_class);

	if (count < 0) {
		ret = -1;
		goto end;
	}

	for (i = 0; i < count; ++i) {
		const char *attr_name = NULL;

		attr_name = bt_ctf_event_class_get_attribute_name(
			event_class, i);
		attr_value = bt_ctf_event_class_get_attribute_value(
			event_class, i);

		if (!attr_name || !attr_value) {
			ret = -1;
			goto end;
		}

		switch (bt_value_get_type(attr_value)) {
		case BT_VALUE_TYPE_INTEGER:
		{
			int64_t value;

			ret = bt_value_integer_get(attr_value, &value);

			if (ret) {
				goto end;
			}

			g_string_append_printf(context->string,
				"\t%s = %" PRId64 ";\n", attr_name, value);
			break;
		}

		case BT_VALUE_TYPE_STRING:
		{
			const char *value;

			ret = bt_value_string_get(attr_value, &value);

			if (ret) {
				goto end;
			}

			g_string_append_printf(context->string,
				"\t%s = \"%s\";\n", attr_name, value);
			break;
		}

		default:
			/* should never happen */
			assert(false);
			break;
		}

		BT_PUT(attr_value);
	}

	if (event_class->context) {
		g_string_append(context->string, "\tcontext := ");
		ret = bt_ctf_field_type_serialize(event_class->context,
			context);
		if (ret) {
			goto end;
		}
		g_string_append(context->string, ";\n");
	}

	if (event_class->fields) {
		g_string_append(context->string, "\tfields := ");
		ret = bt_ctf_field_type_serialize(event_class->fields, context);
		if (ret) {
			goto end;
		}
		g_string_append(context->string, ";\n");
	}

	g_string_append(context->string, "};\n\n");
end:
	context->current_indentation_level = 0;
	BT_PUT(attr_value);
	return ret;
}
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
	29	#include <babeltrace/ctf-ir/fields-internal.h>
	30	#include <babeltrace/ctf-ir/field-types-internal.h>
	31	#include <babeltrace/ctf-ir/event-class.h>
	32	#include <babeltrace/ctf-ir/event-class-internal.h>
	33	#include <babeltrace/ctf-ir/stream-class.h>
	34	#include <babeltrace/ctf-ir/stream-class-internal.h>
	35	#include <babeltrace/ctf-ir/trace-internal.h>
	36	#include <babeltrace/ctf-ir/validation-internal.h>
	37	#include <babeltrace/ctf-ir/utils.h>
	38	#include <babeltrace/ref.h>
	39	#include <babeltrace/ctf-ir/attributes-internal.h>
	40	#include <babeltrace/compiler.h>
6d9fe143	41	#include <babeltrace/endian.h>
dc3fffef	42	#include <inttypes.h>
272df73e PP	43
	44	static
	45	void bt_ctf_event_class_destroy(struct bt_object *obj);
	46
	47	struct bt_ctf_event_class bt_ctf_event_class_create(const char name)
	48	{
	49	int ret;
	50	struct bt_value *obj = NULL;
	51	struct bt_ctf_event_class *event_class = NULL;
	52
	53	if (bt_ctf_validate_identifier(name)) {
	54	goto error;
	55	}
	56
	57	event_class = g_new0(struct bt_ctf_event_class, 1);
	58	if (!event_class) {
	59	goto error;
	60	}
	61
5990dd44	62	event_class->id = -1;
272df73e PP	63	bt_object_init(event_class, bt_ctf_event_class_destroy);
	64	event_class->fields = bt_ctf_field_type_structure_create();
	65	if (!event_class->fields) {
	66	goto error;
	67	}
	68
	69	event_class->attributes = bt_ctf_attributes_create();
	70	if (!event_class->attributes) {
	71	goto error;
	72	}
	73
	74	obj = bt_value_integer_create_init(-1);
	75	if (!obj) {
	76	goto error;
	77	}
	78
	79	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
	80	"id", obj);
	81	if (ret) {
	82	goto error;
	83	}
	84
	85	BT_PUT(obj);
	86
	87	obj = bt_value_string_create_init(name);
	88	if (!obj) {
	89	goto error;
	90	}
	91
	92	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
	93	"name", obj);
	94	if (ret) {
	95	goto error;
	96	}
	97
	98	BT_PUT(obj);
	99
	100	return event_class;
	101
	102	error:
	103	BT_PUT(event_class);
	104	BT_PUT(obj);
	105	return event_class;
	106	}
	107
	108	const char bt_ctf_event_class_get_name(struct bt_ctf_event_class event_class)
	109	{
	110	struct bt_value *obj = NULL;
	111	const char *name = NULL;
	112
	113	if (!event_class) {
	114	goto end;
	115	}
	116
5990dd44 JG	117	if (event_class->name) {
	118	name = event_class->name;
	119	goto end;
	120	}
	121
272df73e PP	122	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
	123	BT_CTF_EVENT_CLASS_ATTR_NAME_INDEX);
	124	if (!obj) {
	125	goto end;
	126	}
	127
	128	if (bt_value_string_get(obj, &name)) {
	129	name = NULL;
	130	}
	131
	132	end:
	133	BT_PUT(obj);
	134	return name;
	135	}
	136
	137	int64_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class)
	138	{
	139	struct bt_value *obj = NULL;
	140	int64_t ret = 0;
	141
	142	if (!event_class) {
	143	ret = -1;
	144	goto end;
	145	}
	146
5990dd44 JG	147	if (event_class->id >= 0) {
	148	ret = event_class->id;
	149	goto end;
	150	}
	151
272df73e PP	152	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
	153	BT_CTF_EVENT_CLASS_ATTR_ID_INDEX);
	154	if (!obj) {
	155	goto end;
	156	}
	157
	158	if (bt_value_integer_get(obj, &ret)) {
	159	ret = -1;
	160	}
	161
	162	if (ret < 0) {
	163	/* means ID is not set */
	164	ret = -1;
	165	goto end;
	166	}
	167
	168	end:
	169	BT_PUT(obj);
	170	return ret;
	171	}
	172
	173	int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
	174	uint32_t id)
	175	{
	176	int ret = 0;
	177	struct bt_value *obj = NULL;
	178	struct bt_ctf_stream_class *stream_class = NULL;
	179
	180
	181	if (!event_class) {
	182	ret = -1;
	183	goto end;
	184	}
	185
	186	stream_class = bt_ctf_event_class_get_stream_class(event_class);
	187	if (stream_class) {
	188	/*
	189	* We don't allow changing the id if the event class has already
	190	* been added to a stream class.
	191	*/
	192	ret = -1;
	193	goto end;
	194	}
	195
	196	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
	197	BT_CTF_EVENT_CLASS_ATTR_ID_INDEX);
	198	if (!obj) {
	199	goto end;
	200	}
	201
	202	if (bt_value_integer_set(obj, id)) {
	203	ret = -1;
	204	goto end;
	205	}
	206
	207	end:
	208	BT_PUT(obj);
	209	BT_PUT(stream_class);
	210	return ret;
	211	}
	212
	213	int bt_ctf_event_class_set_attribute(
	214	struct bt_ctf_event_class event_class, const char name,
	215	struct bt_value *value)
216	{
217	int ret = 0;
218
219	if (!event_class \|\| !name \|\| !value \|\| event_class->frozen) {
220	ret = -1;
221	goto end;
222	}
223
2073703a JG	224	if (!strcmp(name, "id") \|\| !strcmp(name, "loglevel") \|\|
2073703a JG	225	!strcmp(name, "stream_id")) {
272df73e PP	226	if (!bt_value_is_integer(value)) {
	227	ret = -1;
	228	goto end;
	229	}
c3c30b08 MD	230	} else if (!strcmp(name, "name") \|\| !strcmp(name, "model.emf.uri") \|\|
c3c30b08 MD	231	!strcmp(name, "loglevel_string")) {
272df73e PP	232	if (!bt_value_is_string(value)) {
	233	ret = -1;
	234	goto end;
	235	}
	236	} else {
	237	/* unknown attribute */
	238	ret = -1;
	239	goto end;
	240	}
	241
	242	/* "id" special case: >= 0 */
	243	if (!strcmp(name, "id")) {
	244	int64_t val;
	245
	246	ret = bt_value_integer_get(value, &val);
	247
	248	if (ret) {
	249	goto end;
	250	}
	251
	252	if (val < 0) {
	253	ret = -1;
	254	goto end;
	255	}
	256	}
	257
	258	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
2073703a	259	name, value);
272df73e PP	260
	261	end:
	262	return ret;
	263	}
	264
	265	int bt_ctf_event_class_get_attribute_count(
	266	struct bt_ctf_event_class *event_class)
	267	{
	268	int ret = 0;
	269
	270	if (!event_class) {
	271	ret = -1;
	272	goto end;
	273	}
	274
	275	ret = bt_ctf_attributes_get_count(event_class->attributes);
	276
	277	end:
	278	return ret;
	279	}
	280
	281	const char *
	282	bt_ctf_event_class_get_attribute_name(
	283	struct bt_ctf_event_class *event_class, int index)
	284	{
	285	const char *ret;
	286
	287	if (!event_class) {
	288	ret = NULL;
	289	goto end;
	290	}
	291
	292	ret = bt_ctf_attributes_get_field_name(event_class->attributes, index);
	293
	294	end:
	295	return ret;
	296	}
	297
	298	struct bt_value *
	299	bt_ctf_event_class_get_attribute_value(struct bt_ctf_event_class *event_class,
	300	int index)
	301	{
	302	struct bt_value *ret;
	303
	304	if (!event_class) {
	305	ret = NULL;
	306	goto end;
	307	}
	308
	309	ret = bt_ctf_attributes_get_field_value(event_class->attributes, index);
	310
	311	end:
	312	return ret;
	313	}
	314
	315	struct bt_value *
	316	bt_ctf_event_class_get_attribute_value_by_name(
	317	struct bt_ctf_event_class event_class, const char name)
	318	{
	319	struct bt_value *ret;
	320
	321	if (!event_class \|\| !name) {
	322	ret = NULL;
	323	goto end;
324	}
325
326	ret = bt_ctf_attributes_get_field_value_by_name(event_class->attributes,
327	name);
328
329	end:
330	return ret;
331
332	}
333
334	struct bt_ctf_stream_class *bt_ctf_event_class_get_stream_class(
335	struct bt_ctf_event_class *event_class)
336	{
dc3fffef PP	337	return event_class ?
	338	bt_get(bt_ctf_event_class_borrow_stream_class(event_class)) :
	339	NULL;
272df73e PP	340	}
	341
	342	struct bt_ctf_field_type *bt_ctf_event_class_get_payload_type(
	343	struct bt_ctf_event_class *event_class)
	344	{
	345	struct bt_ctf_field_type *payload = NULL;
	346
	347	if (!event_class) {
	348	goto end;
	349	}
	350
	351	bt_get(event_class->fields);
	352	payload = event_class->fields;
	353	end:
	354	return payload;
	355	}
	356
	357	int bt_ctf_event_class_set_payload_type(struct bt_ctf_event_class *event_class,
	358	struct bt_ctf_field_type *payload)
	359	{
	360	int ret = 0;
	361
835b2d10 JG	362	if (!event_class) {
	363	ret = -1;
	364	goto end;
	365	}
	366
	367	if (payload && bt_ctf_field_type_get_type_id(payload) !=
1487a16a	368	BT_CTF_FIELD_TYPE_ID_STRUCT) {
272df73e PP	369	ret = -1;
	370	goto end;
	371	}
	372
272df73e	373	bt_put(event_class->fields);
835b2d10	374	event_class->fields = bt_get(payload);
272df73e PP	375	end:
	376	return ret;
	377	}
	378
	379	int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
	380	struct bt_ctf_field_type *type,
	381	const char *name)
	382	{
	383	int ret = 0;
	384
	385	if (!event_class \|\| !type \|\| bt_ctf_validate_identifier(name) \|\|
	386	event_class->frozen) {
	387	ret = -1;
	388	goto end;
	389	}
	390
	391	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
1487a16a	392	BT_CTF_FIELD_TYPE_ID_STRUCT) {
272df73e PP	393	ret = -1;
	394	goto end;
	395	}
	396
	397	ret = bt_ctf_field_type_structure_add_field(event_class->fields,
	398	type, name);
	399	end:
	400	return ret;
	401	}
	402
	403	int bt_ctf_event_class_get_field_count(
	404	struct bt_ctf_event_class *event_class)
	405	{
	406	int ret;
	407
	408	if (!event_class) {
	409	ret = -1;
	410	goto end;
	411	}
	412
	413	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
1487a16a	414	BT_CTF_FIELD_TYPE_ID_STRUCT) {
272df73e PP	415	ret = -1;
	416	goto end;
	417	}
	418
	419	ret = bt_ctf_field_type_structure_get_field_count(event_class->fields);
	420	end:
	421	return ret;
	422	}
	423
	424	int bt_ctf_event_class_get_field(struct bt_ctf_event_class *event_class,
	425	const char field_name, struct bt_ctf_field_type field_type,
	426	int index)
	427	{
	428	int ret;
	429
	430	if (!event_class \|\| index < 0) {
	431	ret = -1;
	432	goto end;
	433	}
	434
	435	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
1487a16a	436	BT_CTF_FIELD_TYPE_ID_STRUCT) {
272df73e PP	437	ret = -1;
	438	goto end;
	439	}
	440
	441	ret = bt_ctf_field_type_structure_get_field(event_class->fields,
	442	field_name, field_type, index);
	443	end:
	444	return ret;
	445	}
	446
	447	struct bt_ctf_field_type *bt_ctf_event_class_get_field_by_name(
	448	struct bt_ctf_event_class event_class, const char name)
	449	{
	450	GQuark name_quark;
	451	struct bt_ctf_field_type *field_type = NULL;
	452
	453	if (!event_class \|\| !name) {
	454	goto end;
	455	}
	456
	457	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
1487a16a	458	BT_CTF_FIELD_TYPE_ID_STRUCT) {
272df73e PP	459	goto end;
	460	}
	461
	462	name_quark = g_quark_try_string(name);
	463	if (!name_quark) {
	464	goto end;
	465	}
	466
	467	/*
	468	* No need to increment field_type's reference count since getting it
	469	* from the structure already does.
	470	*/
	471	field_type = bt_ctf_field_type_structure_get_field_type_by_name(
	472	event_class->fields, name);
	473	end:
	474	return field_type;
	475	}
	476
	477	struct bt_ctf_field_type *bt_ctf_event_class_get_context_type(
	478	struct bt_ctf_event_class *event_class)
	479	{
	480	struct bt_ctf_field_type *context_type = NULL;
	481
	482	if (!event_class \|\| !event_class->context) {
	483	goto end;
	484	}
	485
	486	bt_get(event_class->context);
	487	context_type = event_class->context;
	488	end:
	489	return context_type;
	490	}
	491
	492	int bt_ctf_event_class_set_context_type(
	493	struct bt_ctf_event_class *event_class,
	494	struct bt_ctf_field_type *context)
	495	{
	496	int ret = 0;
	497
835b2d10	498	if (!event_class \|\| event_class->frozen) {
272df73e PP	499	ret = -1;
	500	goto end;
	501	}
	502
835b2d10	503	if (context && bt_ctf_field_type_get_type_id(context) !=
1487a16a	504	BT_CTF_FIELD_TYPE_ID_STRUCT) {
272df73e PP	505	ret = -1;
	506	goto end;
	507	}
	508
272df73e	509	bt_put(event_class->context);
835b2d10	510	event_class->context = bt_get(context);
272df73e PP	511	end:
	512	return ret;
	513
	514	}
	515
	516	void bt_ctf_event_class_get(struct bt_ctf_event_class *event_class)
	517	{
	518	bt_get(event_class);
	519	}
	520
	521	void bt_ctf_event_class_put(struct bt_ctf_event_class *event_class)
	522	{
	523	bt_put(event_class);
	524	}
	525
	526	BT_HIDDEN
	527	int bt_ctf_event_class_set_stream_id(struct bt_ctf_event_class *event_class,
	528	uint32_t stream_id)
	529	{
	530	int ret = 0;
	531	struct bt_value *obj;
	532
	533	obj = bt_value_integer_create_init(stream_id);
	534
	535	if (!obj) {
	536	ret = -1;
	537	goto end;
	538	}
	539
	540	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
	541	"stream_id", obj);
	542
	543	if (event_class->frozen) {
	544	bt_ctf_attributes_freeze(event_class->attributes);
	545	}
	546
	547	end:
	548	BT_PUT(obj);
	549	return ret;
	550	}
	551
	552	static
	553	void bt_ctf_event_class_destroy(struct bt_object *obj)
	554	{
	555	struct bt_ctf_event_class *event_class;
	556
	557	event_class = container_of(obj, struct bt_ctf_event_class, base);
	558	bt_ctf_attributes_destroy(event_class->attributes);
	559	bt_put(event_class->context);
	560	bt_put(event_class->fields);
	561	g_free(event_class);
	562	}
	563
	564	BT_HIDDEN
	565	void bt_ctf_event_class_freeze(struct bt_ctf_event_class *event_class)
	566	{
	567	assert(event_class);
	568	event_class->frozen = 1;
5990dd44 JG	569	event_class->name = bt_ctf_event_class_get_name(event_class);
5990dd44 JG	570	event_class->id = bt_ctf_event_class_get_id(event_class);
272df73e PP	571	bt_ctf_field_type_freeze(event_class->context);
	572	bt_ctf_field_type_freeze(event_class->fields);
	573	bt_ctf_attributes_freeze(event_class->attributes);
	574	}
	575
	576	BT_HIDDEN
	577	int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
	578	struct metadata_context *context)
	579	{
	580	int i;
	581	int count;
	582	int ret = 0;
	583	struct bt_value *attr_value = NULL;
	584
	585	assert(event_class);
	586	assert(context);
	587
	588	context->current_indentation_level = 1;
	589	g_string_assign(context->field_name, "");
	590	g_string_append(context->string, "event {\n");
	591	count = bt_ctf_event_class_get_attribute_count(event_class);
	592
	593	if (count < 0) {
	594	ret = -1;
	595	goto end;
	596	}
	597
	598	for (i = 0; i < count; ++i) {
	599	const char *attr_name = NULL;
	600
	601	attr_name = bt_ctf_event_class_get_attribute_name(
	602	event_class, i);
	603	attr_value = bt_ctf_event_class_get_attribute_value(
	604	event_class, i);
	605
	606	if (!attr_name \|\| !attr_value) {
	607	ret = -1;
	608	goto end;
	609	}
	610
	611	switch (bt_value_get_type(attr_value)) {
	612	case BT_VALUE_TYPE_INTEGER:
	613	{
	614	int64_t value;
	615
	616	ret = bt_value_integer_get(attr_value, &value);
	617
	618	if (ret) {
	619	goto end;
	620	}
	621
	622	g_string_append_printf(context->string,
	623	"\t%s = %" PRId64 ";\n", attr_name, value);
	624	break;
	625	}
	626
	627	case BT_VALUE_TYPE_STRING:
	628	{
	629	const char *value;
	630
	631	ret = bt_value_string_get(attr_value, &value);
	632
	633	if (ret) {
	634	goto end;
635	}
636
637	g_string_append_printf(context->string,
638	"\t%s = \"%s\";\n", attr_name, value);
639	break;
640	}
641
642	default:
643	/* should never happen */
644	assert(false);
645	break;
646	}
647
648	BT_PUT(attr_value);
649	}
650
651	if (event_class->context) {
652	g_string_append(context->string, "\tcontext := ");
653	ret = bt_ctf_field_type_serialize(event_class->context,
654	context);
655	if (ret) {
656	goto end;
657	}
658	g_string_append(context->string, ";\n");
659	}
660
661	if (event_class->fields) {
662	g_string_append(context->string, "\tfields := ");
663	ret = bt_ctf_field_type_serialize(event_class->fields, context);
664	if (ret) {
665	goto end;
666	}
667	g_string_append(context->string, ";\n");
668	}
669
670	g_string_append(context->string, "};\n\n");
671	end:
672	context->current_indentation_level = 0;
673	BT_PUT(attr_value);
674	return ret;
675	}