Add the first beginnings of Prometheus metrics.

[nageru] / mixer.cpp

diff --git a/mixer.cpp b/mixer.cpp
index fc56de3b3038153c85980d2e26836f74d6fb4c87..3547f01cb653ff63966aba63e94bb934982530b2 100644 (file)
--- a/mixer.cpp
+++ b/mixer.cpp
@@ -42,6 +42,7 @@
 #include "ffmpeg_capture.h"
 #include "flags.h"
 #include "input_mapping.h"
+#include "metrics.h"
 #include "pbo_frame_allocator.h"
 #include "ref_counted_gl_sync.h"
 #include "resampling_queue.h"
@@ -388,6 +389,10 @@ Mixer::Mixer(const QSurfaceFormat &format, unsigned num_cards)
                desired_output_card_index = global_flags.output_card;
                set_output_card_internal(global_flags.output_card);
        }
+
+       global_metrics.register_int_metric("nageru_num_frames", &metrics_num_frames);
+       global_metrics.register_int_metric("nageru_dropped_frames", &metrics_dropped_frames);
+       global_metrics.register_double_metric("nageru_uptime", &metrics_uptime);
 }
 
 Mixer::~Mixer()
@@ -871,6 +876,11 @@ void Mixer::thread_func()
 
                now = steady_clock::now();
                double elapsed = duration<double>(now - start).count();
+
+               metrics_num_frames = frame_num;
+               metrics_dropped_frames = stats_dropped_frames;
+               metrics_uptime = elapsed;
+
                if (frame_num % 100 == 0) {
                        printf("%d frames (%d dropped) in %.3f seconds = %.1f fps (%.1f ms/frame)",
                                frame_num, stats_dropped_frames, elapsed, frame_num / elapsed,