Re: [PATCH v5 09/11] perf/tools: Enhance JSON/metric infrastructure to handle "?"

Jiri Olsa
2020-03-17T15:11:04Z

On Tue, Mar 17, 2020 at 11:53:31AM +0530, Kajol Jain wrote:

SBIP

> +static int metricgroup__add_metric_runtime_param(struct strbuf *events,
> + struct list_head *group_list, struct pmu_event *pe)
> +{
> + int i, count;
> + int ret = -EINVAL;
> +
> + count = arch_get_runtimeparam();
> +
> + /* This loop is added to create multiple
> + * events depend on count value and add
> + * those events to group_list.
> + */
> +
> + for (i = 0; i < count; i++) {
> + const char **ids;
> + int idnum;
> + struct egroup *eg;
> + char value[PATH_MAX];
> +
> + if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, i) < 0)
> + return ret;
> +
> + if (events->len > 0)
> + strbuf_addf(events, ",");
> +
> + if (metricgroup__has_constraint(pe))
> + metricgroup__add_metric_non_group(events, ids, idnum);
> + else
> + metricgroup__add_metric_weak_group(events, ids, idnum);
> +
> + eg = malloc(sizeof(*eg));
> + if (!eg) {
> + ret = -ENOMEM;
> + return ret;
> + }
> +
> + sprintf(value, "%s%c%d", pe->metric_name, '_', i);
> + eg->ids = ids;
> + eg->idnum = idnum;
> + eg->metric_name = strdup(value);
> + if (!eg->metric_name) {
> + ret = -ENOMEM;
> + return ret;
> + }
> +
> + eg->metric_expr = pe->metric_expr;
> + eg->metric_unit = pe->unit;
> + list_add_tail(&eg->nd, group_list);
> + ret = 0;
> +
> + if (ret != 0)
> + break;

again, this is part of metricgroup__add_metric_param no? why not use it?

jirka