diff options
Diffstat (limited to 'src/plugins/prom/prom.c')
-rw-r--r-- | src/plugins/prom/prom.c | 91 |
1 files changed, 65 insertions, 26 deletions
diff --git a/src/plugins/prom/prom.c b/src/plugins/prom/prom.c index 77b739a821b..3fb3704a9a0 100644 --- a/src/plugins/prom/prom.c +++ b/src/plugins/prom/prom.c @@ -22,17 +22,24 @@ static prom_main_t prom_main; -static char * -fix_spaces (char *s) +static u8 * +make_stat_name (char *name) { - char *p = s; + prom_main_t *pm = &prom_main; + char *p = name; + while (*p) { if (!isalnum (*p)) *p = '_'; p++; } - return s; + + /* Reuse vector, instead of always allocating, when building a name. */ + vec_reset_length (pm->name_scratch_pad); + pm->name_scratch_pad = + format (pm->name_scratch_pad, "%v%s", pm->stat_name_prefix, name); + return pm->name_scratch_pad; } static u8 * @@ -40,6 +47,9 @@ dump_counter_vector_simple (stat_segment_data_t *res, u8 *s, u8 used_only) { u8 need_header = 1; int j, k; + u8 *name; + + name = make_stat_name (res->name); for (k = 0; k < vec_len (res->simple_counter_vec); k++) for (j = 0; j < vec_len (res->simple_counter_vec[k]); j++) @@ -48,13 +58,13 @@ dump_counter_vector_simple (stat_segment_data_t *res, u8 *s, u8 used_only) continue; if (need_header) { - s = format (s, "# TYPE %s counter\n", fix_spaces (res->name)); + s = format (s, "# TYPE %v counter\n", name); need_header = 0; } - s = - format (s, "%s{thread=\"%d\",interface=\"%d\"} %lld\n", - fix_spaces (res->name), k, j, res->simple_counter_vec[k][j]); + s = format (s, "%v{thread=\"%d\",interface=\"%d\"} %lld\n", name, k, j, + res->simple_counter_vec[k][j]); } + return s; } @@ -63,6 +73,9 @@ dump_counter_vector_combined (stat_segment_data_t *res, u8 *s, u8 used_only) { u8 need_header = 1; int j, k; + u8 *name; + + name = make_stat_name (res->name); for (k = 0; k < vec_len (res->simple_counter_vec); k++) for (j = 0; j < vec_len (res->combined_counter_vec[k]); j++) @@ -71,18 +84,14 @@ dump_counter_vector_combined (stat_segment_data_t *res, u8 *s, u8 used_only) continue; if (need_header) { - s = format (s, "# TYPE %s_packets counter\n", - fix_spaces (res->name)); - s = - format (s, "# TYPE %s_bytes counter\n", fix_spaces (res->name)); + s = format (s, "# TYPE %v_packets counter\n", name); + s = format (s, "# TYPE %v_bytes counter\n", name); need_header = 0; } - s = format (s, "%s_packets{thread=\"%d\",interface=\"%d\"} %lld\n", - fix_spaces (res->name), k, j, - res->combined_counter_vec[k][j].packets); - s = format (s, "%s_bytes{thread=\"%d\",interface=\"%d\"} %lld\n", - fix_spaces (res->name), k, j, - res->combined_counter_vec[k][j].bytes); + s = format (s, "%v_packets{thread=\"%d\",interface=\"%d\"} %lld\n", + name, k, j, res->combined_counter_vec[k][j].packets); + s = format (s, "%v_bytes{thread=\"%d\",interface=\"%d\"} %lld\n", name, + k, j, res->combined_counter_vec[k][j].bytes); } return s; @@ -91,15 +100,18 @@ dump_counter_vector_combined (stat_segment_data_t *res, u8 *s, u8 used_only) static u8 * dump_error_index (stat_segment_data_t *res, u8 *s, u8 used_only) { + u8 *name; int j; + name = make_stat_name (res->name); + for (j = 0; j < vec_len (res->error_vector); j++) { if (used_only && !res->error_vector[j]) continue; - s = format (s, "# TYPE %s counter\n", fix_spaces (res->name)); - s = format (s, "%s{thread=\"%d\"} %lld\n", fix_spaces (res->name), j, - res->error_vector[j]); + s = format (s, "# TYPE %v counter\n", name); + s = + format (s, "%v{thread=\"%d\"} %lld\n", name, j, res->error_vector[j]); } return s; @@ -108,11 +120,15 @@ dump_error_index (stat_segment_data_t *res, u8 *s, u8 used_only) static u8 * dump_scalar_index (stat_segment_data_t *res, u8 *s, u8 used_only) { + u8 *name; + if (used_only && !res->scalar_value) return s; - s = format (s, "# TYPE %s counter\n", fix_spaces (res->name)); - s = format (s, "%s %.2f\n", fix_spaces (res->name), res->scalar_value); + name = make_stat_name (res->name); + + s = format (s, "# TYPE %v counter\n", name); + s = format (s, "%v %.2f\n", name, res->scalar_value); return s; } @@ -120,12 +136,15 @@ dump_scalar_index (stat_segment_data_t *res, u8 *s, u8 used_only) static u8 * dump_name_vector (stat_segment_data_t *res, u8 *s, u8 used_only) { + u8 *name; int k; - s = format (s, "# TYPE %s_info gauge\n", fix_spaces (res->name)); + name = make_stat_name (res->name); + + s = format (s, "# TYPE %v_info gauge\n", name); for (k = 0; k < vec_len (res->name_vector); k++) - s = format (s, "%s_info{index=\"%d\",name=\"%s\"} 1\n", - fix_spaces (res->name), k, res->name_vector[k]); + s = format (s, "%v_info{index=\"%d\",name=\"%s\"} 1\n", name, k, + res->name_vector[k]); return s; } @@ -348,6 +367,23 @@ prom_stat_patterns_get (void) return prom_main.stats_patterns; } +void +prom_stat_name_prefix_set (u8 *prefix) +{ + prom_main_t *pm = &prom_main; + + vec_free (pm->stat_name_prefix); + pm->stat_name_prefix = prefix; +} + +void +prom_report_used_only (u8 used_only) +{ + prom_main_t *pm = &prom_main; + + pm->used_only = used_only; +} + static void prom_stat_segment_client_init (void) { @@ -375,6 +411,8 @@ prom_enable (vlib_main_t *vm) pm->is_enabled = 1; pm->vm = vm; + if (!pm->stat_name_prefix) + pm->stat_name_prefix = format (0, "vpp"); prom_scraper_process_enable (vm); prom_stat_segment_client_init (); @@ -388,6 +426,7 @@ prom_init (vlib_main_t *vm) pm->is_enabled = 0; pm->min_scrape_interval = 1; pm->used_only = 0; + pm->stat_name_prefix = 0; return 0; } |