[CTX] [ALL] Restarting

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GENTLE RESTART

To make DeleGate restart gently without aborting ongoing sessions in child processes, and without changing the process ID of the DeleGate and holding its resources like entrance ports, send SIGHUP signal to the DeleGate process. This can be done in a platform independent way using -Fkill function like this:
delegated -Fkill-hup -Pport

Also restarting with SIGHUP can be done by remote HTTP clients at "http://delegate/-/admin/" using AUTH=admin parameter.

Restarting will be done after a configuration of DeleGate is changed. Parameters to be reloaded on restart must be given with +=parameters notation for parameter substitution. Other options (parameters) given as command line arguments will be inherited as is to the restarted DeleGate process.

Another purpose of restarting can be cleaning up of possible garbage or leaked resources like heap memory and file descriptors. For this purpose, DeleGate can be restarted periodically by TIMEOUT=restart or at each scheduled time by -restart action in CRON parameter.

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