struct bt_value *bt_ctf_trace_get_environment_field_value_by_name(
struct bt_ctf_trace *trace, const char *name)
{
struct bt_value *ret = NULL;
if (!trace || !name) {
goto end;
}
ret = bt_ctf_attributes_get_field_value_by_name(trace->environment,
name);
end:
return ret;
}
int bt_ctf_trace_set_environment_field_string(struct bt_ctf_trace *trace,
const char *name, const char *value)
{
int ret = 0;
struct bt_value *env_value_string_obj = NULL;
if (!trace || !name || !value) {
ret = -1;
goto end;
}
if (trace->frozen) {
/*
* New environment fields may be added to a frozen trace,
* but existing fields may not be changed.
*/
struct bt_value *attribute =
bt_ctf_attributes_get_field_value_by_name(
trace->environment, name);
if (attribute) {
BT_PUT(attribute);
ret = -1;
goto end;
}
}
env_value_string_obj = bt_value_string_create_init(value);
if (!env_value_string_obj) {
ret = -1;
goto end;
}
if (trace->frozen) {
bt_value_freeze(env_value_string_obj);
}
ret = bt_ctf_trace_set_environment_field(trace, name,
env_value_string_obj);
end:
BT_PUT(env_value_string_obj);
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;
}
BT_HIDDEN
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;
}
