90 lines
2.9 KiB
Common Lisp
90 lines
2.9 KiB
Common Lisp
;;;; cl-scopes/csys/environ - communication system environment
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(defpackage :scopes/csys/environ
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(:use :common-lisp)
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(:local-nicknames (:actor :scopes/core/actor)
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(:csys :scopes/csys)
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(:index :scopes/util/index)
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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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(:export #:create
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#:actions
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#:send-value #:send-connect))
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(in-package :scopes/csys/environ)
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(defclass scope (csys:scope)
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((cells :reader cells :initform (make-hash-table :test #'equal))))
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(defun create (proc meta-env)
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(let ((prg (csys:make-program proc)))
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(csys:neuron (csys:scope prg meta-env :cls 'scope :categ '(:env :c00)))))
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;;;; action handlers
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(defun actions ()
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(list :created #'cell-created
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:notify (csys:no-op)
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:effect (csys:no-op)
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:value #'forward
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:connect #'forward-connect
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:default (csys:no-op :no-forward t)))
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(defun cell-created (msg scope)
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(let* ((data (shape:data msg))
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(addr (getf data :addr (getf data :categ)))
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(new (getf data :new)))
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(when addr
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(register-cell (cells scope) addr new))
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;(csys:send-message new (list (message:domain msg) :next) :data data)
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(actor:send new
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(message:create (list (message:domain msg) :next) :data data))
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nil))
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(defun forward (msg scope)
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(let ((addr (message:addr msg)))
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(if addr
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(dolist (cell (find-cells (cells scope) (message:addr msg)))
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(actor:send cell msg))
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(let ((rcvr (getf (shape:data msg) :to)))
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(if rcvr
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(actor:send rcvr msg)
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(util:lgw "no addr and no :to field in message" msg scope)))))
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nil)
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(defun forward-connect (msg scope)
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(let* ((data (shape:data msg))
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(tgt (car (find-cells (cells scope) (getf data :target)))))
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(setf (getf data :target) tgt)
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(forward (message:create (shape:head msg) :data data) scope)))
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;;;; public shortcuts
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(defun send-value (env val &key (domain :csys) (cat :c00) (loc ""))
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(let ((head (list domain :value cat loc)))
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(actor:send env (message:create head :data `(:value ,val)))))
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(defun send-connect (env &rest args &key (domain :csys) addr to target op)
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(let ((head (list domain :connect)))
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(actor:send env (message:create head :data args))))
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;;;; internal helpers
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(defun register-cell (reg addr cell)
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(destructuring-bind (dom cat &optional (key "")) addr
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(let* ((dcat (list dom cat))
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(idx (gethash dcat reg)))
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(unless idx
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(setf idx (index:create))
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(setf (gethash dcat reg) idx))
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(index:put idx key cell))))
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(defun find-cells (reg addr)
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(destructuring-bind (dom cat &optional (key "")) addr
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(let* ((idx (gethash (list dom cat) reg))
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(cells (when idx (index:query idx key))))
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(unless cells
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(util:lgw "not found" addr reg idx))
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cells)))
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