From 35b6178e078144f9830ce2630345d086465823a7 Mon Sep 17 00:00:00 2001
From: Ian Barwick <barwick@gmail.com>
Date: Tue, 27 Jun 2017 09:50:47 +0900
Subject: [PATCH] placeholder code for function

---
 dbutils.h       |  1 +
 repmgr--4.0.sql |  3 +++
 repmgr.c        | 14 ++++++++++++++
 3 files changed, 18 insertions(+)

diff --git a/dbutils.h b/dbutils.h
index 03979121..bc8d5366 100644
--- a/dbutils.h
+++ b/dbutils.h
@@ -59,6 +59,7 @@ typedef struct s_node_info
 	char		  slot_name[MAXLEN];
 	int			  priority;
 	bool		  active;
+	/* used during failover to track node status */
 	bool		  is_ready;
 	bool		  is_visible;
 	XLogRecPtr	  xlog_location;
diff --git a/repmgr--4.0.sql b/repmgr--4.0.sql
index a1d755c4..48489b60 100644
--- a/repmgr--4.0.sql
+++ b/repmgr--4.0.sql
@@ -34,3 +34,6 @@ CREATE VIEW show_nodes AS
 LEFT JOIN nodes un
        ON un.node_id = n.upstream_node_id;
 
+CREATE FUNCTION request_vote(int) RETURNS boolean
+AS '$libdir/repmgr', 'request_vote'
+LANGUAGE C STRICT;
diff --git a/repmgr.c b/repmgr.c
index 14a92305..84097917 100644
--- a/repmgr.c
+++ b/repmgr.c
@@ -28,6 +28,9 @@ PG_MODULE_MAGIC;
 void		_PG_init(void);
 void		_PG_fini(void);
 
+Datum		request_vote(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1(request_vote);
+
 /*
  * Module load callback
  */
@@ -44,3 +47,14 @@ _PG_fini(void)
 {
 	elog(INFO, "repmgr fini");
 }
+
+
+Datum
+request_vote(PG_FUNCTION_ARGS)
+{
+	uint32 node_id = PG_GETARG_INT32(0);
+
+	elog(INFO, "id is %i", node_id);
+
+	PG_RETURN_BOOL(true);
+}