ted-ross commented on a change in pull request #453: DISPATCH-1278: initial
support for prometheus metrics export
URL: https://github.com/apache/qpid-dispatch/pull/453#discussion_r263041718
##########
File path: src/http-libwebsockets.c
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@@ -361,6 +386,135 @@ static void connection_wake(qd_connection_t *qd_conn)
}
}
+static void handle_stats_results(void *context, qdr_global_stats_t *results)
+{
+ stats_t* stats = (stats_t*) context;
+ qd_http_server_t *hs = stats->server;
+ if (hs) {
+ work_t w = { W_HANDLE_STATS, stats->wsi };
+ work_push(hs, w);
Review comment:
Since the metrics consists only of counters, it's possible that they could
be accessed synchronously by the I/O thread handling the metric request without
using a lock. There is the possibility that any given response might be
inconsistent (i.e. being written at the same time as read), but that might be
acceptable in this case.
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