DEV: flags/peers: Decode PEER and PEERS flags

Decode peer and peers flags via peer_show_flags() and peers_show_flags()
functions.

dev/flags/flags.c

@@ -12,6 +12,7 @@
 #include <haproxy/mux_fcgi-t.h>
 #include <haproxy/mux_h2-t.h>
 #include <haproxy/mux_h1-t.h>
+#include <haproxy/peers-t.h>
 #include <haproxy/stconn-t.h>
 #include <haproxy/stream-t.h>
 #include <haproxy/task-t.h>
@@ -36,10 +37,13 @@
 #define SHOW_AS_H1S   0x00010000
 #define SHOW_AS_FCONN 0x00020000
 #define SHOW_AS_FSTRM 0x00040000
+#define SHOW_AS_PEERS 0x00080000
+#define SHOW_AS_PEER  0x00100000
 
 // command line names, must be in exact same order as the SHOW_AS_* flags above
 // so that show_as_words[i] matches flag 1U<<i.
-const char *show_as_words[] = { "ana", "chn", "conn", "sc", "stet", "strm", "task", "txn", "sd", "hsl", "htx", "hmsg", "fd", "h2c", "h2s",  "h1c", "h1s", "fconn", "fstrm"};
+const char *show_as_words[] = { "ana", "chn", "conn", "sc", "stet", "strm", "task", "txn", "sd", "hsl", "htx", "hmsg", "fd", "h2c", "h2s",  "h1c", "h1s", "fconn", "fstrm",
+				"peers", "peer"};
 
 /* will be sufficient for even largest flag names */
 static char buf[4096];
@@ -152,6 +156,8 @@ int main(int argc, char **argv)
 		if (show_as & SHOW_AS_H1S)   printf("h1s->flags = %s\n",  (h1s_show_flags    (buf, bsz, " | ", flags), buf));
 		if (show_as & SHOW_AS_FCONN) printf("fconn->flags = %s\n",(fconn_show_flags  (buf, bsz, " | ", flags), buf));
 		if (show_as & SHOW_AS_FSTRM) printf("fstrm->flags = %s\n",(fstrm_show_flags  (buf, bsz, " | ", flags), buf));
+		if (show_as & SHOW_AS_PEERS) printf("peers->flags = %s\n",(peers_show_flags  (buf, bsz, " | ", flags), buf));
+		if (show_as & SHOW_AS_PEER)  printf("peer->flags = %s\n", (peer_show_flags   (buf, bsz, " | ", flags), buf));
 	}
 	return 0;
 }

include/haproxy/peers-t.h

@@ -74,6 +74,27 @@ enum peer_learn_state {
 #define PEERS_RESYNC_STATEMASK      (PEERS_F_RESYNC_LOCAL_FINISHED|PEERS_F_RESYNC_REMOTE_FINISHED)
 #define PEERS_RESYNC_FINISHED       (PEERS_F_RESYNC_LOCAL_FINISHED|PEERS_F_RESYNC_REMOTE_FINISHED)
 
+/* This function is used to report flags in debugging tools. Please reflect
+ * below any single-bit flag addition above in the same order via the
+ * __APPEND_FLAG macro. The new end of the buffer is returned.
+ */
+static forceinline char *peers_show_flags(char *buf, size_t len, const char *delim, uint flg)
+{
+#define _(f, ...) __APPEND_FLAG(buf, len, delim, flg, f, #f, __VA_ARGS__)
+	/* prologue */
+	_(0);
+	/* flags */
+	_(PEERS_F_RESYNC_LOCAL_FINISHED, _(PEERS_F_RESYNC_REMOTE_FINISHED, _(PEERS_F_RESYNC_ASSIGN, _(PEERS_F_DONOTSTOP,
+        _(PEERS_F_DBG_RESYNC_LOCALTIMEOUT, _(PEERS_F_DBG_RESYNC_REMOTETIMEOUT,
+        _(PEERS_F_DBG_RESYNC_LOCALABORT, _(PEERS_F_DBG_RESYNC_REMOTEABORT,
+	_(PEERS_F_DBG_RESYNC_LOCALFINISHED, _(PEERS_F_DBG_RESYNC_REMOTEFINISHED,
+	_(PEERS_F_DBG_RESYNC_LOCALPARTIAL, _(PEERS_F_DBG_RESYNC_REMOTEPARTIAL,
+	_(PEERS_F_DBG_RESYNC_LOCALASSIGN, _(PEERS_F_DBG_RESYNC_REMOTEABORT))))))))))))));
+	/* epilogue */
+	_(~0U);
+	return buf;
+#undef _
+}
 
 /******************************/
 /* Peer flags                 */
@@ -91,6 +112,26 @@ enum peer_learn_state {
 
 #define PEER_TEACH_FLAGS            (PEER_F_TEACH_PROCESS|PEER_F_TEACH_FINISHED)
 
+/* This function is used to report flags in debugging tools. Please reflect
+ * below any single-bit flag addition above in the same order via the
+ * __APPEND_FLAG macro. The new end of the buffer is returned.
+ */
+static forceinline char *peer_show_flags(char *buf, size_t len, const char *delim, uint flg)
+{
+#define _(f, ...) __APPEND_FLAG(buf, len, delim, flg, f, #f, __VA_ARGS__)
+	/* prologue */
+	_(0);
+	/* flags */
+	_(PEER_F_TEACH_PROCESS, _(PEER_F_TEACH_FINISHED, _(PEER_F_LOCAL_TEACH_COMPLETE,
+        _(PEER_F_LEARN_NOTUP2DATE, _(PEER_F_WAIT_SYNCTASK_ACK,
+        _(PEER_F_ALIVE, _(PEER_F_HEARTBEAT, _(PEER_F_DWNGRD,
+	_(PEER_F_DBG_RESYNC_REQUESTED)))))))));
+	/* epilogue */
+	_(~0U);
+	return buf;
+#undef _
+}
+
 struct shared_table {
 	struct stktable *table;       /* stick table to sync */
 	int local_id;