diff options
Diffstat (limited to 'exporting/prometheus')
| -rw-r--r-- | exporting/prometheus/prometheus.c | 51 |
1 files changed, 14 insertions, 37 deletions
diff --git a/exporting/prometheus/prometheus.c b/exporting/prometheus/prometheus.c index 90be5d45..2d0611fd 100644 --- a/exporting/prometheus/prometheus.c +++ b/exporting/prometheus/prometheus.c @@ -330,16 +330,11 @@ void format_host_labels_prometheus(struct instance *instance, RRDHOST *host) * Format host labels for the Prometheus exporter * We are using a structure instead a direct buffer to expand options quickly. * - * @param labels_buffer is the buffer used to add labels. + * @param data is the buffer used to add labels. */ -struct format_prometheus_chart_label_callback { - BUFFER *labels_buffer; - const char *labels_prefix; -}; - static int format_prometheus_chart_label_callback(const char *name, const char *value, RRDLABEL_SRC ls, void *data) { - struct format_prometheus_chart_label_callback *d = (struct format_prometheus_chart_label_callback *)data; + BUFFER *wb = data; (void)ls; @@ -352,26 +347,10 @@ static int format_prometheus_chart_label_callback(const char *name, const char * prometheus_name_copy(k, name, PROMETHEUS_ELEMENT_MAX); prometheus_label_copy(v, value, PROMETHEUS_ELEMENT_MAX); - if (*k && *v) { - buffer_sprintf(d->labels_buffer, ",%s=\"%s\"", k, v); - } - return 1; -} + if (*k && *v) + buffer_sprintf(wb, ",%s=\"%s\"", k, v); -void format_chart_labels_prometheus(struct format_prometheus_chart_label_callback *plabel, - const char *chart, - const char *family, - const char *dim, - RRDSET *st) -{ - if (likely(plabel->labels_buffer)) - buffer_reset(plabel->labels_buffer); - else { - plabel->labels_buffer = buffer_create(1024, NULL); - } - buffer_sprintf(plabel->labels_buffer, "%1$schart=\"%2$s\",%1$sdimension=\"%3$s\",%1$sfamily=\"%4$s\"", plabel->labels_prefix, chart, dim, family); - - rrdlabels_walkthrough_read(st->rrdlabels, format_prometheus_chart_label_callback, plabel); + return 1; } struct host_variables_callback_options { @@ -519,9 +498,6 @@ static void generate_as_collected_prom_metric(BUFFER *wb, int prometheus_collector, DICTIONARY *chart_labels) { - struct format_prometheus_chart_label_callback local_label; - local_label.labels_buffer = wb; - buffer_sprintf(wb, "%s_%s", p->prefix, p->context); if (!homogeneous) @@ -534,7 +510,7 @@ static void generate_as_collected_prom_metric(BUFFER *wb, buffer_sprintf(wb, ",%sfamily=\"%s\"", p->labels_prefix, p->family); - rrdlabels_walkthrough_read(chart_labels, format_prometheus_chart_label_callback, &local_label); + rrdlabels_walkthrough_read(chart_labels, format_prometheus_chart_label_callback, wb); buffer_sprintf(wb, "%s} ", p->labels); @@ -626,10 +602,8 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( // for each chart RRDSET *st; - struct format_prometheus_chart_label_callback plabels = { - .labels_buffer = NULL, - .labels_prefix = instance->config.label_prefix, - }; + BUFFER *plabels_buffer = buffer_create(0, NULL); + const char *plabels_prefix = instance->config.label_prefix; STRING *prometheus = string_strdupz("prometheus"); rrdset_foreach_read(st, host) { @@ -765,7 +739,9 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( (output_options & PROMETHEUS_OUTPUT_NAMES && rd->name) ? rrddim_name(rd) : rrddim_id(rd), PROMETHEUS_ELEMENT_MAX); - format_chart_labels_prometheus(&plabels, chart, family, dimension, st); + buffer_flush(plabels_buffer); + buffer_sprintf(plabels_buffer, "%1$schart=\"%2$s\",%1$sdimension=\"%3$s\",%1$sfamily=\"%4$s\"", plabels_prefix, chart, dimension, family); + rrdlabels_walkthrough_read(st->rrdlabels, format_prometheus_chart_label_callback, plabels_buffer); if (unlikely(output_options & PROMETHEUS_OUTPUT_HELP)) buffer_sprintf( @@ -792,7 +768,7 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( context, units, suffix, - buffer_tostring(plabels.labels_buffer), + buffer_tostring(plabels_buffer), labels, value, last_time * MSEC_PER_SEC); @@ -805,7 +781,7 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( context, units, suffix, - buffer_tostring(plabels.labels_buffer), + buffer_tostring(plabels_buffer), labels, value); } @@ -817,6 +793,7 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( } rrdset_foreach_done(st); + buffer_free(plabels_buffer); simple_pattern_free(filter); } |