Lick is the interprocess communication (IPC) vane (kernel module). It allows for applications to open and close IPC ports to earth. For example, a Gall agent can send a %spin card to open an IPC port and allow for an earth process to communicate with it through %spit and %soak cards.
Lick is located in /base/sys/vane/lick.hoon within Arvo.
Further Reading
- The Lick reference: A technical guide to the Lick vane.