kanata design

Obligatory diagram

main

• read args
• read config
• start event loops

event loop

• read key events
• send events to processing loop on channel

processing loop

• check for events on mpsc
• if event: send event to layout
• tick() the keyberon layout, send any events needed
• if no event: sleep for 1ms
• separate monotonic time checks, because can't rely on sleep to be fine-grained or accurate
• send ServerMessages to the TCP server

TCP server

• listen for ClientMessages and act on them
• recv ServerMessages from processing loop and forward to all connected clients

layout

• uses keyberon
• indices of kanata_keyberon::layout::Event::{Press, Release}(x,y):

  x = 0 or 1 (0 is for physical key presses, 1 is for fake keys)
  y = OS code of key used as an index

OS-specific code

Most of the OS specific code is in oskbd/ and keys/. There's a bit of it in kanata/ since the event loops to receive OS events are different.