From 72b16e5173bd9fcde197afb7721ebfa490d91d79 Mon Sep 17 00:00:00 2001
From: Amaury Denoyelle <adenoyelle@haproxy.com>
Date: Mon, 5 Oct 2020 11:49:38 +0200
Subject: [PATCH] MINOR: stats: define additional flag px cap on domain

This flag can be used to determine on what type of proxy object the
statistics should be relevant. It will be useful when adding dynamic
statistics. Currently, this flag is not used.
---
 include/haproxy/stats-t.h | 11 +++++++++++
 include/haproxy/stats.h   |  3 +++
 src/stats.c               |  5 +++++
 3 files changed, 19 insertions(+)

diff --git a/include/haproxy/stats-t.h b/include/haproxy/stats-t.h
index be4c6865c..d60cc2487 100644
--- a/include/haproxy/stats-t.h
+++ b/include/haproxy/stats-t.h
@@ -51,6 +51,7 @@
 #define STATS_TYPE_SO  3
 
 #define STATS_DOMAIN  (0)               /* used for bitshifting, type of statistics, for now only proxy is available */
+#define STATS_PX_CAP  (8)               /* used for bitshifting, differentiate obj1 type for proxy statistics */
 
 /* HTTP stats : applet.st0 */
 enum {
@@ -460,4 +461,14 @@ enum stats_domain {
 	STATS_DOMAIN_MASK  = 0xff
 };
 
+/* used in a flag as a 1 byte field */
+enum stats_domain_px_cap {
+	STATS_PX_CAP_FE   = 0x01,
+	STATS_PX_CAP_BE   = 0x02,
+	STATS_PX_CAP_SRV  = 0x04,
+	STATS_PX_CAP_LI   = 0x08,
+
+	STATS_PX_CAP_MASK = 0xff
+};
+
 #endif /* _HAPROXY_STATS_T_H */
diff --git a/include/haproxy/stats.h b/include/haproxy/stats.h
index 4fe96b592..e376b284f 100644
--- a/include/haproxy/stats.h
+++ b/include/haproxy/stats.h
@@ -120,6 +120,9 @@ static inline struct field mkf_flt(uint32_t type, double value)
 	return f;
 }
 
+#define MK_STATS_PROXY_DOMAIN(px_cap) \
+	((px_cap) << STATS_PX_CAP | STATS_DOMAIN_PROXY)
+
 #endif /* _HAPROXY_STATS_H */
 
 /*
diff --git a/src/stats.c b/src/stats.c
index 16e0c10fd..6ab1c06c5 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -262,6 +262,11 @@ static inline uint8_t stats_get_domain(uint32_t domain)
 	return domain >> STATS_DOMAIN & STATS_DOMAIN_MASK;
 }
 
+static inline enum stats_domain_px_cap stats_px_get_cap(uint32_t domain)
+{
+	return domain >> STATS_PX_CAP & STATS_PX_CAP_MASK;
+}
+
 static void stats_dump_json_schema(struct buffer *out);
 
 int stats_putchk(struct channel *chn, struct htx *htx, struct buffer *chk)