Commit 9040a547 authored by David Goulet's avatar David Goulet 🆘
Browse files

relay: Add number of open and max sockets metrics



With this commit, a relay will emit metrics that give the total number
of sockets and total number of opened sockets.

Related to #40367
Signed-off-by: David Goulet's avatarDavid Goulet <dgoulet@torproject.org>
parent 8bb1874f
......@@ -22,8 +22,9 @@
#include "feature/stats/rephist.h"
/** Declarations of each fill function for metrics defined in base_metrics. */
static void fill_oom_values(void);
static void fill_socket_values(void);
static void fill_onionskins_values(void);
static void fill_oom_values(void);
/** The base metrics that is a static array of metrics added to the metrics
* store.
......@@ -45,6 +46,13 @@ static const relay_metrics_entry_t base_metrics[] =
.help = "Total number of onionskins handled",
.fill_fn = fill_onionskins_values,
},
{
.key = RELAY_METRICS_NUM_SOCKETS,
.type = METRICS_TYPE_GAUGE,
.name = METRICS_NAME(relay_load_socket_total),
.help = "Total number of sockets",
.fill_fn = fill_socket_values,
},
};
static const size_t num_base_metrics = ARRAY_LENGTH(base_metrics);
......@@ -69,6 +77,25 @@ handshake_type_to_str(const uint16_t type)
}
}
/** Fill function for the RELAY_METRICS_NUM_SOCKETS metrics. */
static void
fill_socket_values(void)
{
metrics_store_entry_t *sentry;
const relay_metrics_entry_t *rentry =
&base_metrics[RELAY_METRICS_NUM_SOCKETS];
sentry = metrics_store_add(the_store, rentry->type, rentry->name,
rentry->help);
metrics_store_entry_add_label(sentry,
metrics_format_label("state", "opened"));
metrics_store_entry_update(sentry, get_n_open_sockets());
sentry = metrics_store_add(the_store, rentry->type, rentry->name,
rentry->help);
metrics_store_entry_update(sentry, get_max_sockets());
}
/** Fill function for the RELAY_METRICS_NUM_ONIONSKINS metrics. */
static void
fill_onionskins_values(void)
......
......@@ -19,6 +19,8 @@ typedef enum {
RELAY_METRICS_NUM_OOM_BYTES = 0,
/** Number of onionskines handled. */
RELAY_METRICS_NUM_ONIONSKINS = 1,
/** Number of sockets. */
RELAY_METRICS_NUM_SOCKETS = 2,
} relay_metrics_key_t;
/** The metadata of a relay metric. */
......
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