bridges.c File Reference

Prometheus Bridge Metrics. More...

#include "asterisk.h"
#include "asterisk/stasis_bridges.h"
#include "asterisk/res_prometheus.h"
#include "prometheus_internal.h"

Include dependency graph for bridges.c:

Go to the source code of this file.

Data Structures
struct	bridge_metric_defs

Macros
#define	BRIDGES_CHANNELS_COUNT_HELP   "Number of channels in the bridge."

Functions
int	bridge_metrics_init (void)
	Initialize bridge metrics. More...
static void	bridge_metrics_unload_cb (void)
static void	bridges_scrape_cb (struct ast_str **response)
static void	get_bridge_channel_count (struct prometheus_metric *metric, struct ast_bridge_snapshot *snapshot)

Variables
struct bridge_metric_defs	bridge_metric_defs []
struct prometheus_callback	bridges_callback
static struct prometheus_metrics_provider	provider

Detailed Description

Prometheus Bridge Metrics.

Author

Matt Jordan mjord.nosp@m.an@d.nosp@m.igium.nosp@m..com

Definition in file bridges.c.

Macro Definition Documentation

BRIDGES_CHANNELS_COUNT_HELP

#define BRIDGES_CHANNELS_COUNT_HELP   "Number of channels in the bridge."

Definition at line 33 of file bridges.c.

Function Documentation

bridge_metrics_init()

int bridge_metrics_init

(

void

)

Initialize bridge metrics.

Return values

0	success
-1	error

Definition at line 183 of file bridges.c.

References prometheus_callback_register(), and prometheus_metrics_provider_register().

Referenced by load_module().

{
   prometheus_metrics_provider_register(&provider);
   prometheus_callback_register(&bridges_callback);

   return 0;
}

bridge_metrics_unload_cb()

static void bridge_metrics_unload_cb ( void  )

static

Definition at line 169 of file bridges.c.

References prometheus_callback_unregister().

{
   prometheus_callback_unregister(&bridges_callback);
}

bridges_scrape_cb()

static void bridges_scrape_cb ( struct ast_str **  response )

static

Definition at line 78 of file bridges.c.

References ao2_container_clone, ao2_container_count(), ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ao2_ref, ARRAY_LEN, ast_bridge_get_snapshot(), ast_bridges(), ast_calloc, ast_copy_string(), ast_eid_default, ast_eid_to_str(), ast_free, AST_LIST_INSERT_TAIL, bridges, ast_bridge_snapshot::creator, bridge_metric_defs::get_value, bridge_metric_defs::help, prometheus_metric::help, bridge_metric_defs::name, ast_bridge_snapshot::name, NULL, PROMETHEUS_METRIC_GAUGE, PROMETHEUS_METRIC_SET_LABEL, PROMETHEUS_METRIC_STATIC_INITIALIZATION, prometheus_metric_to_string(), ast_bridge_snapshot::subclass, ast_bridge_snapshot::technology, prometheus_metric::type, ast_bridge_snapshot::uniqueid, and prometheus_metric::value.

{
   struct ao2_container *bridge_cache;
   struct ao2_container *bridges;
   struct ao2_iterator it_bridges;
   struct ast_bridge *bridge;
   struct prometheus_metric *bridge_metrics;
   char eid_str[32];
   int i, j, num_bridges;
   struct prometheus_metric bridge_count = PROMETHEUS_METRIC_STATIC_INITIALIZATION(
      PROMETHEUS_METRIC_GAUGE,
      "asterisk_bridges_count",
      "Current bridge count.",
      NULL
   );

   ast_eid_to_str(eid_str, sizeof(eid_str), &ast_eid_default);

   bridge_cache = ast_bridges();
   if (!bridge_cache) {
      return;
   }

   bridges = ao2_container_clone(bridge_cache, 0);
   ao2_ref(bridge_cache, -1);
   if (!bridges) {
      return;
   }

   num_bridges = ao2_container_count(bridges);

   /* Current endpoint count */
   PROMETHEUS_METRIC_SET_LABEL(&bridge_count, 0, "eid", eid_str);
   snprintf(bridge_count.value, sizeof(bridge_count.value), "%d", num_bridges);
   prometheus_metric_to_string(&bridge_count, response);

   if (num_bridges == 0) {
      ao2_ref(bridges, -1);
      return;
   }

   bridge_metrics = ast_calloc(ARRAY_LEN(bridge_metric_defs) * num_bridges, sizeof(*bridge_metrics));
   if (!bridge_metrics) {
      ao2_ref(bridges, -1);
      return;
   }

   /* Bridge dependent values */
   it_bridges = ao2_iterator_init(bridges, 0);
   for (i = 0; (bridge = ao2_iterator_next(&it_bridges)); ao2_ref(bridge, -1), i++) {
      struct ast_bridge_snapshot *snapshot = ast_bridge_get_snapshot(bridge);

      for (j = 0; j < ARRAY_LEN(bridge_metric_defs); j++) {
         int index = i * ARRAY_LEN(bridge_metric_defs) + j;

         bridge_metrics[index].type = PROMETHEUS_METRIC_GAUGE;
         ast_copy_string(bridge_metrics[index].name, bridge_metric_defs[j].name, sizeof(bridge_metrics[index].name));
         bridge_metrics[index].help = bridge_metric_defs[j].help;
         PROMETHEUS_METRIC_SET_LABEL(&bridge_metrics[index], 0, "eid", eid_str);
         PROMETHEUS_METRIC_SET_LABEL(&bridge_metrics[index], 1, "id", (snapshot->uniqueid));
         PROMETHEUS_METRIC_SET_LABEL(&bridge_metrics[index], 2, "tech", (snapshot->technology));
         PROMETHEUS_METRIC_SET_LABEL(&bridge_metrics[index], 3, "subclass", (snapshot->subclass));
         PROMETHEUS_METRIC_SET_LABEL(&bridge_metrics[index], 4, "creator", (snapshot->creator));
         PROMETHEUS_METRIC_SET_LABEL(&bridge_metrics[index], 5, "name", (snapshot->name));
         bridge_metric_defs[j].get_value(&bridge_metrics[index], snapshot);

         if (i > 0) {
            AST_LIST_INSERT_TAIL(&bridge_metrics[j].children, &bridge_metrics[index], entry);
         }
      }
      ao2_ref(snapshot, -1);
   }
   ao2_iterator_destroy(&it_bridges);

   for (j = 0; j < ARRAY_LEN(bridge_metric_defs); j++) {
      prometheus_metric_to_string(&bridge_metrics[j], response);
   }

   ast_free(bridge_metrics);
   ao2_ref(bridges, -1);
}

get_bridge_channel_count()

static void get_bridge_channel_count ( struct prometheus_metric *  metric, struct ast_bridge_snapshot *  snapshot  )

static

Definition at line 42 of file bridges.c.

References ast_bridge_snapshot::num_channels, and prometheus_metric::value.

{
   snprintf(metric->value, sizeof(metric->value), "%d", snapshot->num_channels);
}

Variable Documentation

bridge_metric_defs

struct bridge_metric_defs bridge_metric_defs[]

bridges_callback

struct prometheus_callback bridges_callback

Initial value:

= {
   .name = "bridges callback",
   .callback_fn = bridges_scrape_cb,
}

Definition at line 160 of file bridges.c.

provider

struct prometheus_metrics_provider provider

static

Initial value:

= {
   .name = "bridges",
   .unload_cb = bridge_metrics_unload_cb,
}

Definition at line 178 of file bridges.c.

Referenced by _ast_device_state(), action_presencestate(), ast_phoneprov_provider_register(), ast_presence_state_helper(), ast_presence_state_prov_add(), ast_presence_state_prov_del(), ast_sip_api_provider_register(), AST_TEST_DEFINE(), handle_cli_osp_show(), osp_auth(), osp_create_provider(), osp_create_transaction(), osp_lookup(), osp_next(), osp_unload(), ospauth_exec(), osplookup_exec(), ospnext_exec(), presence_read(), reload_module(), and unload_module().