MINOR: mux-quic/h3: count glitches when they're reported

The qcc_report_glitch() function is now replaced with a macro to support
enumerating counters for each individual glitch line. For now this adds
36 such counters. The macro supports an optional description, though that
is not being used for now.

As a reminder, this requires to build with -DDEBUG_GLITCHES=1.

Author: wtarreau

include/haproxy/mux_quic.h

@@ -12,8 +12,13 @@
 #include <haproxy/mux_quic-t.h>
 #include <haproxy/stconn.h>
 
+#define qcc_report_glitch(qcc, inc, ...) ({		\
+		COUNT_GLITCH(__VA_ARGS__);		\
+		_qcc_report_glitch(qcc, inc); 		\
+	})
+
 void qcc_set_error(struct qcc *qcc, int err, int app);
-int qcc_report_glitch(struct qcc *qcc, int inc);
+int _qcc_report_glitch(struct qcc *qcc, int inc);
 struct qcs *qcc_init_stream_local(struct qcc *qcc, int bidi);
 void qcs_send_metadata(struct qcs *qcs);
 struct stconn *qcs_attach_sc(struct qcs *qcs, struct buffer *buf, char fin);

src/mux_quic.c

@@ -718,7 +718,7 @@ void qcc_set_error(struct qcc *qcc, int err, int app)
 /* Increment glitch counter for <qcc> connection by <inc> steps. If configured
  * threshold reached, close the connection with an error code.
  */
-int qcc_report_glitch(struct qcc *qcc, int inc)
+int _qcc_report_glitch(struct qcc *qcc, int inc)
 {
 	const int max = global.tune.quic_frontend_glitches_threshold;