I think that is somehow setting signal handlers in the server_loop function?

Yes, the only way to set signal handlers is to assign to %SIG. threads explains about threads and signaling, perlipc explains more.

In reply to Re^3: Trying to exit an HTTP::Daemon based on JSON::RPC::Server::Daemon by Anonymous Monk
in thread Trying to exit an HTTP::Daemon based on JSON::RPC::Server::Daemon by carcus88

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