diff --git a/src/server/connections.c b/src/server/connections.c
index 538f7075a3eb408d8166a13567a6b8d8cedeb9ba..455b8eb699493cbde513ecbfba9579713be449cf 100644
--- a/src/server/connections.c
+++ b/src/server/connections.c
@@ -6,7 +6,7 @@
  * Created by Willf|r 31/3-90. Mostly written by ceder.
  */
 
-static char *rcsid = "$Id: connections.c,v 0.8 1991/08/28 02:21:52 ceder Exp $";
+static char *rcsid = "$Id: connections.c,v 0.9 1991/08/30 01:32:50 ceder Exp $";
 
 
 #include <errno.h>
@@ -44,7 +44,22 @@ static char *rcsid = "$Id: connections.c,v 0.8 1991/08/28 02:21:52 ceder Exp $";
 ISCMCB         * kom_server_mcb    = NULL;
 Connection     * active_connection = NULL;
 
+/*
+ * This is set TRUE when the server should be closed. It is checked
+ * each time around the main loop. It is set if someone with enough
+ * privileges issues a `shutdown', or of lyskomd receives a SIGHUP.
+ * This not an abort: all data is saved before we exit.
+ */
 volatile Bool	 go_and_die = FALSE;
+
+/*
+ * Once upon a time the entire database was always held in core, and
+ * saved to disk when we got a SIGUSR1 signal. Nowadays the server
+ * keeps track of the time itself and saves at appropriate intervalls.
+ * It does still write some statistics when it get a SIGUSR1 signal.
+ * The signal handler sets do_sync_db. The name is retained for
+ * historical reasons.
+ */
 volatile Bool	 do_sync_db = FALSE;
 
 jmp_buf 	 parse_env;
@@ -760,11 +775,15 @@ toploop(void)
     {
         if (do_sync_db)
 	{
-	    cache_sync();	/* A noop in diskomd. Actually
+	    /*
+	     * do_sync_db used to save the entire database. Nowadays
+	     * all it does is to print some statistics.
+	     */
+	    cache_sync();	/* A noop in lyskomd. Actually
 				   stops the server and dumps
 				   everything in ramkomd. */
 	    dump_statistics();
-	    do_sync_db = 0;
+	    do_sync_db = FALSE;
 	}
 
 	gettimeofday(&before, NULL);