From cde93897cdefdd7c7f66c400a61e42ceee5f6a46 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Wed, 11 Dec 2013 18:14:52 +0100 Subject: event: hook up sd-event with the service watchdog logic Adds a new call sd_event_set_watchdog() that can be used to hook up the event loop with the watchdog supervision logic of systemd. If enabled and $WATCHDOG_USEC is set the event loop will ping the invoking systemd daemon right after coming back from epoll_wait() but not more often than $WATCHDOG_USEC/4. The epoll_wait() will sleep no longer than $WATCHDOG_USEC/4*3, to make sure the service manager is called in time. This means that setting WatchdogSec= in a .service file and calling sd_event_set_watchdog() in your daemon is enough to hook it up with the watchdog logic. --- units/systemd-logind.service.in | 1 + 1 file changed, 1 insertion(+) (limited to 'units/systemd-logind.service.in') diff --git a/units/systemd-logind.service.in b/units/systemd-logind.service.in index 31b5cd011f..90196681fe 100644 --- a/units/systemd-logind.service.in +++ b/units/systemd-logind.service.in @@ -19,6 +19,7 @@ Restart=always RestartSec=0 BusName=org.freedesktop.login1 CapabilityBoundingSet=CAP_SYS_ADMIN CAP_AUDIT_CONTROL CAP_CHOWN CAP_KILL CAP_DAC_READ_SEARCH CAP_DAC_OVERRIDE CAP_FOWNER CAP_SYS_TTY_CONFIG +WatchdogSec=1min # Increase the default a bit in order to allow many simultaneous # logins since we keep one fd open per session. -- cgit v1.2.3-54-g00ecf