--- /dev/null
+/*
+ * Copyright 2018 - Philippe Proulx <pproulx@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.
+ */
+
+#define BT_LOG_TAG "PLUGIN-CTF-METADATA-META-UPDATE-VALUE-STORING-INDEXES"
+#include "logging.h"
+
+#include <babeltrace2/babeltrace.h>
+#include "common/babeltrace.h"
+#include "common/assert.h"
+#include <glib.h>
+#include <stdint.h>
+#include <string.h>
+#include <inttypes.h>
+
+#include "ctf-meta-visitors.h"
+
+static
+int update_field_class_stored_value_index(struct ctf_field_class *fc,
+ struct ctf_trace_class *tc,
+ struct ctf_stream_class *sc,
+ struct ctf_event_class *ec)
+{
+ int ret = 0;
+ uint64_t i;
+ struct ctf_field_path *field_path = NULL;
+ struct ctf_field_class_int *tgt_fc = NULL;
+ uint64_t *stored_value_index = NULL;
+
+ if (!fc) {
+ goto end;
+ }
+
+ switch (fc->type) {
+ case CTF_FIELD_CLASS_TYPE_VARIANT:
+ {
+ struct ctf_field_class_variant *var_fc = (void *) fc;
+
+ field_path = &var_fc->tag_path;
+ stored_value_index = &var_fc->stored_tag_index;
+ tgt_fc = (void *) var_fc->tag_fc;
+ break;
+ }
+ case CTF_FIELD_CLASS_TYPE_SEQUENCE:
+ {
+ struct ctf_field_class_sequence *seq_fc = (void *) fc;
+
+ field_path = &seq_fc->length_path;
+ stored_value_index = &seq_fc->stored_length_index;
+ tgt_fc = seq_fc->length_fc;
+ break;
+ }
+ default:
+ break;
+ }
+
+ if (field_path) {
+ BT_ASSERT(tgt_fc);
+ BT_ASSERT(tgt_fc->base.base.type == CTF_FIELD_CLASS_TYPE_INT ||
+ tgt_fc->base.base.type == CTF_FIELD_CLASS_TYPE_ENUM);
+ if (tgt_fc->storing_index >= 0) {
+ /* Already storing its value */
+ *stored_value_index = (uint64_t) tgt_fc->storing_index;
+ } else {
+ /* Not storing its value: allocate new index */
+ tgt_fc->storing_index = tc->stored_value_count;
+ *stored_value_index = (uint64_t) tgt_fc->storing_index;
+ tc->stored_value_count++;
+ }
+ }
+
+ switch (fc->type) {
+ case CTF_FIELD_CLASS_TYPE_STRUCT:
+ {
+ struct ctf_field_class_struct *struct_fc = (void *) fc;
+
+ for (i = 0; i < struct_fc->members->len; i++) {
+ struct ctf_named_field_class *named_fc =
+ ctf_field_class_struct_borrow_member_by_index(
+ struct_fc, i);
+
+ ret = update_field_class_stored_value_index(named_fc->fc,
+ tc, sc, ec);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ break;
+ }
+ case CTF_FIELD_CLASS_TYPE_VARIANT:
+ {
+ struct ctf_field_class_variant *var_fc = (void *) fc;
+
+ for (i = 0; i < var_fc->options->len; i++) {
+ struct ctf_named_field_class *named_fc =
+ ctf_field_class_variant_borrow_option_by_index(
+ var_fc, i);
+
+ ret = update_field_class_stored_value_index(named_fc->fc,
+ tc, sc, ec);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ break;
+ }
+ case CTF_FIELD_CLASS_TYPE_ARRAY:
+ case CTF_FIELD_CLASS_TYPE_SEQUENCE:
+ {
+ struct ctf_field_class_array_base *array_fc = (void *) fc;
+
+ ret = update_field_class_stored_value_index(array_fc->elem_fc,
+ tc, sc, ec);
+ if (ret) {
+ goto end;
+ }
+
+ break;
+ }
+ default:
+ break;
+ }
+
+end:
+ return ret;
+}
+
+BT_HIDDEN
+int ctf_trace_class_update_value_storing_indexes(struct ctf_trace_class *ctf_tc)
+{
+ uint64_t i;
+
+ if (!ctf_tc->is_translated) {
+ update_field_class_stored_value_index(
+ ctf_tc->packet_header_fc, ctf_tc, NULL, NULL);
+ }
+
+ for (i = 0; i < ctf_tc->stream_classes->len; i++) {
+ uint64_t j;
+ struct ctf_stream_class *sc = ctf_tc->stream_classes->pdata[i];
+
+ if (!sc->is_translated) {
+ update_field_class_stored_value_index(sc->packet_context_fc,
+ ctf_tc, sc, NULL);
+ update_field_class_stored_value_index(sc->event_header_fc,
+ ctf_tc, sc, NULL);
+ update_field_class_stored_value_index(
+ sc->event_common_context_fc, ctf_tc, sc, NULL);
+ }
+
+ for (j = 0; j < sc->event_classes->len; j++) {
+ struct ctf_event_class *ec =
+ sc->event_classes->pdata[j];
+
+ if (!ec->is_translated) {
+ update_field_class_stored_value_index(
+ ec->spec_context_fc, ctf_tc, sc, ec);
+ update_field_class_stored_value_index(
+ ec->payload_fc, ctf_tc, sc, ec);
+ }
+ }
+ }
+
+ return 0;
+}