File at-3.1.8-massive_batch.patch of Package at

--- atd.c.orig
+++ atd.c
@@ -137,9 +137,10 @@ static char rcsid[] = "$Id: atd.c,v 1.28
 static double load_avg = LOADAVG_MX;
 static time_t now;
 static time_t last_chg;
-static int nothing_to_do;
+static int nothing_to_do = 0;
 unsigned int batch_interval;
 static int run_as_daemon = 0;
+static int hupped = 0;
 
 static volatile sig_atomic_t term_signal = 0;
 
@@ -152,9 +153,10 @@ set_term(int dummy)
 }
 
 RETSIGTYPE
-sdummy(int dummy)
+set_hup(int dummy)
 {
-    /* Empty signal handler */
+    hupped = 1;
+    nothing_to_do = 0;
     return;
 }
 
@@ -790,6 +792,7 @@ run_loop()
 	return next_job;
     last_chg = buf.st_mtime;
 
+    hupped = 0;
     if ((spool = opendir(".")) == NULL)
 	perr("Cannot read " ATJOB_DIR);
 
@@ -1014,7 +1017,7 @@ main(int argc, char *argv[])
      */
 
     sigaction(SIGHUP, NULL, &act);
-    act.sa_handler = sdummy;
+    act.sa_handler = set_hup;
     sigaction(SIGHUP, &act, NULL);
 
     sigaction(SIGTERM, NULL, &act);
@@ -1030,9 +1033,10 @@ main(int argc, char *argv[])
     do {
 	now = time(NULL);
 	next_invocation = run_loop();
-	if (next_invocation > now) {
+	if ((next_invocation > now) && (!hupped)) {
 	    sleep(next_invocation - now);
 	}
+	hupped = 0;
     } while (!term_signal);
     daemon_cleanup();
     exit(EXIT_SUCCESS);