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")) {
if (!bt_value_is_integer(value)) {
ret = -1;
goto end;
}
} else if (!strcmp(name, "name") || !strcmp(name, "model.emf.uri")) {
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;
}
static
int set_trace_name(bt_trace *trace, const char *name_suffix)
{
int ret = 0;
const bt_trace_class *tc = bt_trace_borrow_class_const(trace);
const bt_value *val;
GString *name;
name = g_string_new(NULL);
if (!name) {
BT_LOGE_STR("Failed to allocate a GString.");
ret = -1;
goto end;
}
/*
* Check if we have a trace environment string value named `hostname`.
* If so, use it as the trace name's prefix.
*/
val = bt_trace_class_borrow_environment_entry_value_by_name_const(
tc, "hostname");
if (val && bt_value_is_string(val)) {
g_string_append(name, bt_value_string_get(val));
if (name_suffix) {
g_string_append_c(name, G_DIR_SEPARATOR);
}
}
if (name_suffix) {
g_string_append(name, name_suffix);
}
ret = bt_trace_set_name(trace, name->str);
if (ret) {
goto end;
}
goto end;
end:
if (name) {
g_string_free(name, TRUE);
}
return ret;
}
int bt_ctf_trace_set_environment_field(struct bt_ctf_trace *trace,
const char *name, struct bt_value *value)
{
int ret = 0;
if (!trace || !name || !value ||
bt_ctf_validate_identifier(name) ||
!(bt_value_is_integer(value) || bt_value_is_string(value))) {
ret = -1;
goto end;
}
if (strchr(name, ' ')) {
ret = -1;
goto end;
}
if (trace->frozen) {
/*
* New environment fields may be added to a frozen trace,
* but existing fields may not be changed.
*
* The object passed is frozen like all other attributes.
*/
struct bt_value *attribute =
bt_ctf_attributes_get_field_value_by_name(
trace->environment, name);
if (attribute) {
BT_PUT(attribute);
ret = -1;
goto end;
}
bt_value_freeze(value);
}
ret = bt_ctf_attributes_set_field_value(trace->environment, name,
value);
end:
return ret;
}