stats: Support regular stats flush
Reliable monitoring requires regular flush of all stat values, even
if they have not changed. Otherwise (1) the monitoring app has to
maintain state and (2) can go out of sync if it's restarted while
the app is still running.
Change-Id: I04f1e7bdf0d6f20e4f15571e94191de61c47ddad
diff --git a/include/osmocom/core/stats.h b/include/osmocom/core/stats.h
index e01016d..b9edac2 100644
--- a/include/osmocom/core/stats.h
+++ b/include/osmocom/core/stats.h
@@ -73,6 +73,7 @@
char *bind_addr_str; /*!< local bind IP address */
int dest_port; /*!< destination (UDP) port */
int mtu; /*!< Maximum Transmission Unit */
+ unsigned int flush_period; /*!< period between regular flushes */
/*! Maximum class/index to report. FIXME: More details! */
enum osmo_stats_class max_class;
@@ -87,7 +88,8 @@
int fd; /*!< file descriptor of socket */
struct msgb *buffer; /*!< message buffer for log output */
int agg_enabled; /*!< is aggregation enabled? */
- int force_single_flush;
+ int force_single_flush; /*!< set to 1 to force a flush (send even unchanged stats values) */
+ unsigned int flush_period_counter; /*!< count sends between forced flushes */
struct llist_head list;
int (*open)(struct osmo_stats_reporter *srep);
@@ -129,6 +131,7 @@
int osmo_stats_reporter_set_name_prefix(struct osmo_stats_reporter *srep, const char *prefix);
int osmo_stats_reporter_enable(struct osmo_stats_reporter *srep);
int osmo_stats_reporter_disable(struct osmo_stats_reporter *srep);
+int osmo_stats_reporter_set_flush_period(struct osmo_stats_reporter *srep, unsigned int period);
/* reporter creation */
struct osmo_stats_reporter *osmo_stats_reporter_create_log(const char *name);