Fix comment and update copyright year in pgpool_main.c

diff --git a/src/main/pgpool_main.c b/src/main/pgpool_main.c
index ef2e5dfc1770a5515e8cbaa5d3a08d70faa260fa..40376b2f80be3c4f8da44cf7ef5e2dae0295e335 100644 (file)
--- a/src/main/pgpool_main.c
+++ b/src/main/pgpool_main.c
@@ -5,7 +5,7 @@
  * pgpool: a language independent connection pool server for PostgreSQL
  * written by Tatsuo Ishii
  *
- * Copyright (c) 2003-2024     PgPool Global Development Group
+ * Copyright (c) 2003-2025     PgPool Global Development Group
  *
  * Permission to use, copy, modify, and distribute this software and
  * its documentation for any purpose and without fee is hereby
@@ -137,6 +137,7 @@ typedef struct
        bool            sync_required;  /* true if watchdog synchronization is
                                                                 * necessary */
 
+       /* followings are copy of Req_info */
        POOL_REQUEST_KIND reqkind;
        int                     node_id_set[MAX_NUM_BACKENDS];
        int                     node_count;
@@ -1636,9 +1637,9 @@ failover(void)
                wd_failover_start();
 
                /*
-                * if not in replication mode/native replication mode, we treat this a
-                * restart request. otherwise we need to check if we have already
-                * failovered.
+                * If not in streaming replication mode/native replication mode, we
+                * treat this as a restart request. Otherwise we need to check if we
+                * have already performed the failover.
                 */
                ereport(DEBUG1,
                                (errmsg("failover handler"),
@@ -1651,14 +1652,14 @@ failover(void)
                 */
                if (failover_context.request_details & REQ_DETAIL_PROMOTE)
                {
-                       promote_node = failover_context.node_id_set[0];
+                       promote_node = failover_context.node_id_set[0]; /* requested node */
                        for (i = 0; i < failover_context.node_count; i++)
                        {
                                failover_context.node_id_set[i] = REAL_PRIMARY_NODE_ID;
                        }
                }
 
-               node_id = failover_context.node_id_set[0];
+               node_id = failover_context.node_id_set[0];              /* set target node id */
 
                /* failback request? */
                if (failover_context.reqkind == NODE_UP_REQUEST)
@@ -1686,6 +1687,7 @@ failover(void)
                                                                 * NODE_QUARANTINE_REQUEST */
                {
 
+                       /* process single failover request */
                        if (handle_failover_request(&failover_context, node_id) < 0)
                                continue;
                }