let me explore the behavior of node.js's several threads, and find one of them sending "X" over a socket to the other (still not quite sure what this is, some kind of heartbeat/clock tick?)
I don't know about node.js specifically, but this is a common pattern to wake another thread that uses a select()-style event loop.
I don't know about node.js specifically, but this is a common pattern to wake another thread that uses a select()-style event loop.