Pass the right value to usleep for sleeping, and always add the background refresh item back into the scheduler if enabled since it is deleted during reload. (issue #8142 reported by p_lindheimer)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@45030 65c4cc65-6c06-0410-ace0-fbb531ad65f3

dnsmgr.c

@@ -147,7 +147,7 @@ static void *do_refresh(void *data)
 {
 	for (;;) {
 		pthread_testcancel();
-		usleep(ast_sched_wait(sched));
+		usleep((ast_sched_wait(sched)*1000));
 		pthread_testcancel();
 		ast_sched_runq(sched);
 	}
@@ -339,17 +339,17 @@ static int do_reload(int loading)
 
 	/* if this reload enabled the manager, create the background thread
 	   if it does not exist */
-	if (enabled && !was_enabled && (refresh_thread == AST_PTHREADT_NULL)) {
+	if (enabled) {
+		if (!was_enabled && (refresh_thread == AST_PTHREADT_NULL)) {
 			if (ast_pthread_create(&refresh_thread, NULL, do_refresh, NULL) < 0) {
 				ast_log(LOG_ERROR, "Unable to start refresh thread.\n");
 			}
-		else {
 			ast_cli_register(&cli_refresh);
+		}
 		/* make a background refresh happen right away */
 		refresh_sched = ast_sched_add_variable(sched, 100, refresh_list, &master_refresh_info, 1);
 		res = 0;
 	}
-	}
 	/* if this reload disabled the manager and there is a background thread,
 	   kill it */
 	else if (!enabled && was_enabled && (refresh_thread != AST_PTHREADT_NULL)) {