[sr-dev] systemd watchdog

I have observed a case when Kamaili debug module try to grab the lock on shutdown and not able to do it. As a result, the Kamailio process is stuck and not able to restart (dead lock). To resolve such a case i want to utilize systemd watchdog feature https://www.freedesktop.org/software/systemd/man/sd_watchdog_enabled.html# To use this feature I need send sd_notify(3) with a message string of "WATCHDOG=1" from main process https://www.freedesktop.org/software/systemd/man/sd_watchdog_enabled.html# According to systemd doc only one process to send watchdog If the $WATCHDOG_USEC environment variable is set, and the $WATCHDOG_PID variable is unset or set to the PID of the current process, the service manager expects notifications from this process. https://www.freedesktop.org/software/systemd/man/sd_watchdog_enabled.html# Additional info at https://lists.freedesktop.org/archives/systemd-devel/2018-January/040185.ht… Could you suggest how to embed this systemd call to the main process? Sergey