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_r263047011
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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:
Sorry, I meant to not even use an action for the core thread. Just go read
the current values of the counters from the HTTP thread, ignoring any glitches
that occur as a result of concurrency.
If you use the general-work method, the call is qdr_post_general_work. I
think there's a void* you can use to point to the metric object and you can add
fields to qdr_general_work_t if needed. You of course need to write the
I/O-thread-side work function that calls the metric callback.
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