107 lines
5.0 KiB
Racket
107 lines
5.0 KiB
Racket
#lang racket/base
|
|
|
|
(require racket/match)
|
|
(require preserves)
|
|
|
|
(require (except-in "main.rkt" actor-system))
|
|
(require "bag.rkt")
|
|
(require "schemas/gen/box-protocol.rkt")
|
|
(require "schemas/gen/dataspace.rkt")
|
|
|
|
(require "syntax.rkt")
|
|
|
|
(define box
|
|
(action (ds LIMIT REPORT_EVERY)
|
|
(spawn (define root-facet this-facet)
|
|
(define-field value 0)
|
|
(define start-time (current-inexact-milliseconds))
|
|
(define prev-value 0)
|
|
(at ds
|
|
(assert (BoxState (value)))
|
|
(when (message (SetBox $new-value))
|
|
(when (zero? (remainder new-value REPORT_EVERY))
|
|
(define end-time (current-inexact-milliseconds))
|
|
(define delta (/ (- end-time start-time) 1000.0))
|
|
(define count (- new-value prev-value))
|
|
(set! prev-value new-value)
|
|
(set! start-time end-time)
|
|
(log-info "Box got ~a (~a Hz)" new-value (/ count delta)))
|
|
(when (= new-value LIMIT)
|
|
(stop-facet root-facet))
|
|
(value new-value))))))
|
|
|
|
(define client
|
|
(action (ds)
|
|
(spawn (define root-facet this-facet)
|
|
(define count 0)
|
|
(at ds
|
|
(when (asserted (BoxState $value))
|
|
(send! ds (SetBox->preserves (SetBox (+ value 1)))))
|
|
;; (during (BoxState _)
|
|
;; (on-start (set! count (+ count 1)))
|
|
;; (on-stop (set! count (- count 1))
|
|
;; (when (zero? count)
|
|
;; (log-info "Client detected box termination")
|
|
;; (stop-facet root-facet))))
|
|
(assert (Observe 'BoxState
|
|
(ref (entity #:assert
|
|
(action (_v _h)
|
|
(set! count (+ count 1)))
|
|
#:retract
|
|
(action (_h)
|
|
(set! count (- count 1))
|
|
(when (zero? count)
|
|
(log-info "Client detected box termination")
|
|
(stop-facet root-facet)))))))
|
|
;; (during (BoxState _)
|
|
;; (on-stop (log-info "Client detected box termination")
|
|
;; (stop-facet root-facet)))
|
|
))))
|
|
|
|
(define (dataspace)
|
|
(define handles (make-hash))
|
|
(define assertions (make-bag))
|
|
(define subscriptions (make-hash))
|
|
(entity #:assert (action (rec handle)
|
|
(when (record? rec)
|
|
(hash-set! handles handle rec)
|
|
(when (eq? (bag-change! assertions rec +1) 'absent->present)
|
|
(match (parse-Observe rec)
|
|
[(? eof-object?) (void)]
|
|
[(Observe label observer)
|
|
(define seen (make-hash))
|
|
(hash-set! (hash-ref! subscriptions label make-hasheq) observer seen)
|
|
(for [(existing (in-bag assertions))]
|
|
(when (preserve=? (record-label existing) label)
|
|
(hash-set! seen existing (turn-assert! this-turn observer existing))))])
|
|
(for [((observer seen) (in-hash (hash-ref subscriptions (record-label rec) '#hash())))]
|
|
(unless (hash-has-key? seen rec)
|
|
(hash-set! seen rec (turn-assert! this-turn observer rec)))))))
|
|
#:retract (action (upstream-handle)
|
|
(define rec (hash-ref handles upstream-handle #f))
|
|
(when rec
|
|
(hash-remove! handles upstream-handle)
|
|
(when (eq? (bag-change! assertions rec -1) 'present->absent)
|
|
(for [(seen (in-hash-values (hash-ref subscriptions (record-label rec) '#hash())))]
|
|
(turn-retract! this-turn (hash-ref seen rec))
|
|
(hash-remove! seen rec))
|
|
(match (parse-Observe rec)
|
|
[(? eof-object?) (void)]
|
|
[(Observe label observer)
|
|
(let ((subscribers (hash-ref subscriptions label)))
|
|
(hash-remove! subscribers observer)
|
|
(when (hash-empty? subscribers)
|
|
(hash-remove! subscriptions label)))]))))
|
|
#:message (action (message)
|
|
(when (record? message)
|
|
(for [(peer (in-hash-keys (hash-ref subscriptions (record-label message) '#hash())))]
|
|
(turn-message! this-turn peer message))))))
|
|
|
|
(module+ main
|
|
(time
|
|
(actor-system
|
|
(define disarm (facet-prevent-inert-check! this-facet))
|
|
(define ds (ref (dataspace)))
|
|
(box this-turn ds 500000 100000)
|
|
(client this-turn ds))))
|