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SubjectRe: [PATCH v4 6/8] perf/tools: Enhance JSON/metric infrastructure to handle "?"
On Mon, Mar 09, 2020 at 11:55:50AM +0530, Kajol Jain wrote:

SNIP

> +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];
> +
> + expr__runtimeparam = i;
> +
> + if (expr__find_other(pe->metric_expr,
> + NULL, &ids, &idnum) < 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(struct egroup));
> + 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);
> + eg->metric_expr = pe->metric_expr;
> + eg->metric_unit = pe->unit;
> + list_add_tail(&eg->nd, group_list);
> + ret = 0;
> +
> + if (ret != 0)
> + break;

the inside loop is essentialy what you factor out to
metricgroup__add_metric_param right? please nove
addition of metricgroup__add_metric_param function
into separate patch

jirka


> + }
> + return ret;
> +}
> +static int metricgroup__add_metric_param(struct strbuf *events,
> + struct list_head *group_list, struct pmu_event *pe)
> +{
> +
> + const char **ids;
> + int idnum;
> + struct egroup *eg;
> + int ret = -EINVAL;
> +
> + if (expr__find_other(pe->metric_expr,
> + NULL, &ids, &idnum) < 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(struct egroup));
> + if (!eg)
> + ret = -ENOMEM;
> +
> + eg->ids = ids;
> + eg->idnum = idnum;
> + eg->metric_name = pe->metric_name;
> + eg->metric_expr = pe->metric_expr;
> + eg->metric_unit = pe->unit;
> + list_add_tail(&eg->nd, group_list);
> + ret = 0;
> +
> + return ret;
> +}

SNIP

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