+++ /dev/null
-/*
- * ctf_events.c
- *
- * Babeltrace Library
- *
- * Copyright 2011-2012 EfficiOS Inc. and Linux Foundation
- *
- * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- * Julien Desfossez <julien.desfossez@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.
- */
-
-#include <babeltrace/babeltrace.h>
-#include <babeltrace/format.h>
-#include <babeltrace/ctf/events.h>
-#include <babeltrace/ctf-ir/metadata.h>
-#include <glib.h>
-
-/*
- * thread local storage to store the last error that occured
- * while reading a field, this variable must be accessed by
- * bt_ctf_field_error only
- */
-__thread int bt_ctf_last_field_error = 0;
-
-struct definition *bt_ctf_get_top_level_scope(struct bt_ctf_event *event,
- enum bt_ctf_scope scope)
-{
- struct definition *tmp = NULL;
-
- switch (scope) {
- case BT_TRACE_PACKET_HEADER:
- if (!event->stream)
- goto error;
- if (event->stream->trace_packet_header)
- tmp = &event->stream->trace_packet_header->p;
- break;
- case BT_STREAM_PACKET_CONTEXT:
- if (!event->stream)
- goto error;
- if (event->stream->stream_packet_context)
- tmp = &event->stream->stream_packet_context->p;
- break;
- case BT_STREAM_EVENT_HEADER:
- if (!event->stream)
- goto error;
- if (event->stream->stream_event_header)
- tmp = &event->stream->stream_event_header->p;
- break;
- case BT_STREAM_EVENT_CONTEXT:
- if (!event->stream)
- goto error;
- if (event->stream->stream_event_context)
- tmp = &event->stream->stream_event_context->p;
- break;
- case BT_EVENT_CONTEXT:
- if (!event->event)
- goto error;
- if (event->event->event_context)
- tmp = &event->event->event_context->p;
- break;
- case BT_EVENT_FIELDS:
- if (!event->event)
- goto error;
- if (event->event->event_fields)
- tmp = &event->event->event_fields->p;
- break;
- }
- return tmp;
-
-error:
- return NULL;
-}
-
-struct definition *bt_ctf_get_field(struct bt_ctf_event *event,
- struct definition *scope,
- const char *field)
-{
- struct definition *def;
-
- if (scope) {
- def = lookup_definition(scope, field);
- if (bt_ctf_field_type(def) == CTF_TYPE_VARIANT) {
- struct definition_variant *variant_definition;
- variant_definition = container_of(def,
- struct definition_variant, p);
- return variant_definition->current_field;
- }
- return def;
- }
- return NULL;
-}
-
-struct definition *bt_ctf_get_index(struct bt_ctf_event *event,
- struct definition *field,
- unsigned int index)
-{
- struct definition *ret = NULL;
-
- if (bt_ctf_field_type(field) == CTF_TYPE_ARRAY) {
- struct definition_array *array_definition;
- array_definition = container_of(field,
- struct definition_array, p);
- ret = array_index(array_definition, index);
- } else if (bt_ctf_field_type(field) == CTF_TYPE_SEQUENCE) {
- struct definition_sequence *sequence_definition;
- sequence_definition = container_of(field,
- struct definition_sequence, p);
- ret = sequence_index(sequence_definition, index);
- }
- return ret;
-}
-
-const char *bt_ctf_event_name(struct bt_ctf_event *event)
-{
- struct ctf_event *event_class;
- struct ctf_stream_class *stream_class;
-
- if (!event)
- return NULL;
- stream_class = event->stream->stream_class;
- event_class = g_ptr_array_index(stream_class->events_by_id,
- event->stream->event_id);
- return g_quark_to_string(event_class->name);
-}
-
-const char *bt_ctf_field_name(const struct definition *def)
-{
- if (def)
- return g_quark_to_string(def->name);
- return NULL;
-}
-
-enum ctf_type_id bt_ctf_field_type(struct definition *def)
-{
- if (def)
- return def->declaration->id;
- return CTF_TYPE_UNKNOWN;
-}
-
-int bt_ctf_get_field_list(struct bt_ctf_event *event,
- struct definition *scope,
- struct definition const * const **list,
- unsigned int *count)
-{
- switch (bt_ctf_field_type(scope)) {
- case CTF_TYPE_INTEGER:
- case CTF_TYPE_FLOAT:
- case CTF_TYPE_STRING:
- case CTF_TYPE_ENUM:
- goto error;
- case CTF_TYPE_STRUCT:
- {
- struct definition_struct *def_struct;
-
- def_struct = container_of(scope, struct definition_struct, p);
- if (!def_struct)
- goto error;
- if (def_struct->fields->pdata) {
- *list = (struct definition const* const*) def_struct->fields->pdata;
- *count = def_struct->fields->len;
- goto end;
- } else {
- goto error;
- }
- }
- case CTF_TYPE_UNTAGGED_VARIANT:
- goto error;
- case CTF_TYPE_VARIANT:
- {
- struct definition_variant *def_variant;
-
- def_variant = container_of(scope, struct definition_variant, p);
- if (!def_variant)
- goto error;
- if (def_variant->fields->pdata) {
- *list = (struct definition const* const*) def_variant->fields->pdata;
- *count = def_variant->fields->len;
- goto end;
- } else {
- goto error;
- }
- }
- case CTF_TYPE_ARRAY:
- {
- struct definition_array *def_array;
-
- def_array = container_of(scope, struct definition_array, p);
- if (!def_array)
- goto error;
- if (def_array->elems->pdata) {
- *list = (struct definition const* const*) def_array->elems->pdata;
- *count = def_array->elems->len;
- goto end;
- } else {
- goto error;
- }
- }
- case CTF_TYPE_SEQUENCE:
- {
- struct definition_sequence *def_sequence;
-
- def_sequence = container_of(scope, struct definition_sequence, p);
- if (!def_sequence)
- goto error;
- if (def_sequence->elems->pdata) {
- *list = (struct definition const* const*) def_sequence->elems->pdata;
- *count = def_sequence->elems->len;
- goto end;
- } else {
- goto error;
- }
- }
- default:
- break;
- }
-
-end:
- return 0;
-
-error:
- *list = NULL;
- *count = 0;
- return -1;
-}
-
-uint64_t bt_ctf_get_timestamp(struct bt_ctf_event *event)
-{
- if (event && event->stream->has_timestamp)
- return event->stream->timestamp;
- else
- return 0;
-}
-
-static void bt_ctf_field_set_error(int error)
-{
- bt_ctf_last_field_error = error;
-}
-
-int bt_ctf_field_get_error(void)
-{
- int ret;
- ret = bt_ctf_last_field_error;
- bt_ctf_last_field_error = 0;
-
- return ret;
-}
-
-uint64_t bt_ctf_get_uint64(struct definition *field)
-{
- unsigned int ret = 0;
-
- if (field && bt_ctf_field_type(field) == CTF_TYPE_INTEGER)
- ret = get_unsigned_int(field);
- else
- bt_ctf_field_set_error(-EINVAL);
-
- return ret;
-}
-
-int64_t bt_ctf_get_int64(struct definition *field)
-{
- int ret = 0;
-
- if (field && bt_ctf_field_type(field) == CTF_TYPE_INTEGER)
- ret = get_signed_int(field);
- else
- bt_ctf_field_set_error(-EINVAL);
-
- return ret;
-
-}
-
-char *bt_ctf_get_char_array(struct definition *field)
-{
- char *ret = NULL;
-
- if (field && bt_ctf_field_type(field) == CTF_TYPE_ARRAY)
- ret = get_char_array(field)->str;
- else
- bt_ctf_field_set_error(-EINVAL);
-
- return ret;
-}
-
-char *bt_ctf_get_string(struct definition *field)
-{
- char *ret = NULL;
-
- if (field && bt_ctf_field_type(field) == CTF_TYPE_STRING)
- ret = get_string(field);
- else
- bt_ctf_field_set_error(-EINVAL);
-
- return ret;
-}
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