From 97b56f1ec15a3270cc2e85c9b367e4d38f91ae1a Mon Sep 17 00:00:00 2001
From: Victor Tapia <victor.tapia@canonical.com>
Date: Mon, 16 Oct 2017 09:45:24 +0200
Subject: [PATCH 63/79] WATCHDOG: Restart providers with SIGUSR2 after time
 drift
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Restarting the providers using the already implemented SIGUSR2 (for
method .resetOffline, used after netlink detects an interface change)
when a time drift is detected, ensures that affected connection retries
(e.g. LDAP) will be rescheduled immediately instead of having to wait
the time shifted to return to its normal execution.

Resolves:
https://pagure.io/SSSD/sssd/issue/3285

Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
---
 src/util/util_watchdog.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/util/util_watchdog.c b/src/util/util_watchdog.c
index 59293db60e4ffbe566f8b17f3f289503e8d9aee6..20a8b896791118c1ae9b5bfe101a539b213497a4 100644
--- a/src/util/util_watchdog.c
+++ b/src/util/util_watchdog.c
@@ -160,6 +160,10 @@ static void watchdog_fd_read_handler(struct tevent_context *ev,
               "[%d]: %s\n", ret, sss_strerror(ret));
         orderly_shutdown(1);
     }
+    if (strncmp(debug_prg_name, "sssd[be[", sizeof("sssd[be[") - 1) == 0) {
+        kill(getpid(), SIGUSR2);
+        DEBUG(SSSDBG_IMPORTANT_INFO, "SIGUSR2 sent to %s\n", debug_prg_name);
+    }
 }
 
 int setup_watchdog(struct tevent_context *ev, int interval)
-- 
2.15.1