112 lines
3.4 KiB
Common Lisp
112 lines
3.4 KiB
Common Lisp
;;;; cl-scopes/csys - concurrent cybernetic communication systems
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(defpackage :scopes/csys
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(:use :common-lisp)
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(:local-nicknames (:actor :scopes/core/actor)
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(:config :scopes/config)
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(:message :scopes/core/message)
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(:shape :scopes/shape)
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(:util :scopes/util)
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(:alx :alexandria))
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(:export #:scope #:environ
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#:make-program
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#:neuron #:std-proc #:create
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#:handle-action
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#:notify))
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(in-package :scopes/csys)
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;;;; scope: information a neuron has access to
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(defclass scope ()
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((value :accessor value :initarg :value :initform 0)
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;(params :accessor params :initarg :params :initform nil) ; <- program
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(categ :accessor categ :initarg :categ :initform '(:csys :c00))
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(stage :accessor stage :initarg :stage :initform :initial)
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(proc :accessor proc)
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(program :reader program :initarg :program)
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;(actions :accessor actions :initarg :actions :initform nil) ; <- program
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(syns :accessor syns :initform nil)
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(environ :reader environ :initarg :environ)))
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(defun scope (prg env &rest args &key (cls 'scope) &allow-other-keys)
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(remf args :cls)
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(apply #'make-instance cls :program prg :environ env args))
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(defmethod initialize-instance :after ((sc scope) &key &allow-other-keys)
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(set-proc sc))
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(defun reset-scope (scope &rest args)
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(apply #'scope
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(getf args :program) (program scope)
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(getf args :environ (environ scope))
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:categ (getf args :categ (categ scope))
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args))
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(defun set-proc (scope)
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(setf (proc scope) (funcall (program scope) scope))
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scope)
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(defgeneric make-program (spec)
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(:method ((fn function)) (lambda (scope) fn)))
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;;;; neurons (= async tasks) and synapses (= connections)
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(defun neuron (scope)
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(actor:create (process scope)))
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(defun synapse (rcvr &optional (op #'identity))
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(lambda (msg)
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(actor:send rcvr (funcall op msg))))
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(defun update (scope)
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(actor:become (process scope)))
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;;;; message handlers, proc steps
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(defun process (scope)
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(lambda (msg) (funcall (proc scope) msg scope)))
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(defun std-proc (msg scope)
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;(util:lgi msg state syns env)
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(destructuring-bind (nmsg nscope)
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(handle-action msg scope :default #'remember) ; + params, actions
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(forward nmsg (syns nscope))
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(update nscope)))
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(defun create (msg scope)
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(let ((new (neuron (apply #'reset-scope scope (shape:data msg)))))
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(notify-created msg new scope)))
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(defun do-log (msg scope)
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(util:lgi msg))
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(defun notify (msg scope)
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(actor:send (environ scope) msg))
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(defun forward (msg syns)
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(dolist (s syns)
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(funcall s msg)))
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(defun handle-action (msg scope &key (default #'no-op) actions params)
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(let* ((key (message:action msg))
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;(act (gethash key (actions scope) default))
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(act (getf actions key (getf actions :default default))))
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(apply act msg scope params)))
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(defun notify-created (msg new scope)
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(let* ((head (list (message:domain msg) :created))
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(data (util:plist-merge (shape:data msg) '(:new new :parent actor:*self*)))
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(msg1 (message:create head :data data)))
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(notify msg1 scope))
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)
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;;;; predefined neuron actions
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(defun no-op (msg scope)
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(list msg scope))
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(defun remember (msg scope)
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(setf (value scope) (shape:data-value msg :value))
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;(list msg (make-neuron-state (shape:data msg) syns))
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(list msg scope))
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