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spawn

starts an actor with a mailbox

Usage: (spawn func mbox-size? monitor?)

Starts an actor-like process whose function receives a mailbox sequence. The returned value is a sender procedure that can emit messages into that mailbox. The default mailbox size is 16. If a monitor procedure is provided, it is used to handle raised values from the actor body.

An Example

(define send
  (spawn (lambda (mailbox) (first mailbox))))