+++ /dev/null
-/*
- * 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>
-
-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 (struct bt_ctf_stream_class *) bt_object_get_parent(event_class);
-}
-
-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_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_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_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_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_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_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;
-}
-
-void bt_ctf_event_class_set_native_byte_order(
- struct bt_ctf_event_class *event_class,
- int byte_order)
-{
- if (!event_class) {
- return;
- }
-
- assert(byte_order == 0 || byte_order == LITTLE_ENDIAN ||
- byte_order == BIG_ENDIAN);
-
- bt_ctf_field_type_set_native_byte_order(event_class->context,
- byte_order);
- bt_ctf_field_type_set_native_byte_order(event_class->fields,
- byte_order);
-}
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