schedule-segments-split schedule-extract-until!
add-segments-contents-to-queue!
- %8sync
-
<run-request>
make-run-request run-request?
run-request-proc run-request-when
run-it wrap wrap-apply run run-at run-delay
- %run %run-at %run-delay %port-request %port-remove-request
+ %8sync %8sync-delay
%8sync-run %8sync-run-at %8sync-run-delay
%8sync-port %8sync-port-remove
;;; Asynchronous escape to run things
;;; =================================
-(define-syntax-rule (%8sync async-request)
- "Run BODY asynchronously at a prompt, passing args to make-future.
-
-Runs things asynchronously (8synchronously?)"
- (propagate-%async-exceptions
- (abort-to-prompt (current-agenda-prompt)
- async-request)))
+(define-syntax-rule (%8sync-abort-to-prompt async-request)
+ (abort-to-prompt (current-agenda-prompt)
+ async-request))
;; Async port request and run-request meta-requests
(define (make-async-request proc)
(wrapped-exception-stacks body-result))
body-result)))
-(define-syntax-rule (%run body ...)
- (%run-at body ... #f))
-
-(define-syntax-rule (%run-at body ... when)
- ;; Send an asynchronous request to apply a continuation to the
- ;; following function, then handle that as a request to the agenda
- (make-async-request
- (lambda (kont)
- ;; We're making a run request
- (make-run-request
- ;; Wrapping the following execution to run...
- (wrap
- ;; Once we get the result from the inner part, we'll resume
- ;; this continuation, but first
- ;; @@: Is this running immediately, or queueing the result
- ;; after evaluation for the next agenda tick? It looks
- ;; like evaluating immediately. Is that what we want?
- (kont
- ;; Any unhandled errors are caught
- (let ((exception-stack #f))
- (catch #t
- ;; Run the actual code the user requested
- (lambda ()
- body ...)
- ;; If something bad happened and we didn't catch it,
- ;; we'll wrap it up in such a way that the continuation
- ;; can address it
- (lambda (key . args)
- (cond
- ((eq? key '8sync-caught-error)
- (match args
- ((orig-key orig-args orig-stacks)
- (make-wrapped-exception
- orig-key orig-args
- (cons exception-stack orig-stacks)))))
- (else
- (make-wrapped-exception key args
- (list exception-stack)))))
- (lambda _
- (set! exception-stack (make-stack #t 1 0)))))))
- when))))
-
-(define-syntax-rule (%run-delay body ... delay-time)
- (%run-at body ... (tdelta delay-time)))
-
-(define-syntax-rule (%port-request port port-request-args ...)
- (make-async-request
- (lambda (kont)
- (list (make-port-request port port-request-args ...)
- (make-run-request (wrap kont) #f)))))
-
-(define-syntax-rule (%port-remove-request port)
- (make-async-request
- (lambda (kont)
- (list (make-port-remove-request port)
- (make-run-request (wrap kont) #f)))))
-
-
-;; Sugar
-(define-syntax-rule (%8sync-run rest ...)
- "Sugar for (%8sync (%run ...))"
- (%8sync (%run rest ...)))
-
-(define-syntax-rule (%8sync-run-at rest ...)
- "Sugar for (%8sync (%run-at ...))"
- (%8sync (%run-at rest ...)))
-
-(define-syntax-rule (%8sync-run-delay rest ...)
- "Sugar for (%8sync (%run-delay ...))"
- (%8sync (%run-delay rest ...)))
-
-(define-syntax-rule (%8sync-port rest ...)
- "Sugar for (%8sync (%port-request ...))"
- (%8sync (%port-request rest ...)))
-
-(define-syntax-rule (%8sync-port-remove rest ...)
- "Sugar for (%8sync (%port-remove-request ...))"
- (%8sync (%port-remove-request rest ...)))
+(define-syntax %8sync
+ (syntax-rules ()
+ "Run BODY asynchronously (8synchronously?) at a prompt, then return.
+
+Possibly specify WHEN as the second argument."
+ ((%8sync body)
+ (%8sync-run body))
+ ((%8sync body when)
+ (%8sync-run-at body when))))
+
+(define-syntax-rule (%8sync-run body ...)
+ (%8sync-run-at body ... #f))
+
+(define-syntax-rule (%8sync-run-at body ... when)
+ (propagate-%async-exceptions
+ (%8sync-abort-to-prompt
+ ;; Send an asynchronous request to apply a continuation to the
+ ;; following function, then handle that as a request to the agenda
+ (make-async-request
+ (lambda (kont)
+ ;; We're making a run request
+ (make-run-request
+ ;; Wrapping the following execution to run...
+ (wrap
+ ;; Once we get the result from the inner part, we'll resume
+ ;; this continuation, but first
+ ;; @@: Is this running immediately, or queueing the result
+ ;; after evaluation for the next agenda tick? It looks
+ ;; like evaluating immediately. Is that what we want?
+ (kont
+ ;; Any unhandled errors are caught
+ (let ((exception-stack #f))
+ (catch #t
+ ;; Run the actual code the user requested
+ (lambda ()
+ body ...)
+ ;; If something bad happened and we didn't catch it,
+ ;; we'll wrap it up in such a way that the continuation
+ ;; can address it
+ (lambda (key . args)
+ (cond
+ ((eq? key '8sync-caught-error)
+ (match args
+ ((orig-key orig-args orig-stacks)
+ (make-wrapped-exception
+ orig-key orig-args
+ (cons exception-stack orig-stacks)))))
+ (else
+ (make-wrapped-exception key args
+ (list exception-stack)))))
+ (lambda _
+ (set! exception-stack (make-stack #t 1 0)))))))
+ when))))))
+
+(define-syntax-rule (%8sync-run-delay body ... delay-time)
+ (%8sync-run-at body ... (tdelta delay-time)))
+
+(define-syntax-rule (%8sync-delay args ...)
+ (%8sync-run-delay args ...))
+
+(define-syntax-rule (%8sync-port port port-request-args ...)
+ (%8sync-abort-to-prompt
+ (make-async-request
+ (lambda (kont)
+ (list (make-port-request port port-request-args ...)
+ (make-run-request kont #f))))))
+
+(define-syntax-rule (%8sync-port-remove port)
+ (%8sync-abort-to-prompt
+ (make-async-request
+ (lambda (kont)
+ (list (make-port-remove-request port)
+ (make-run-request kont #f))))))
;; TODO: Write (%run-immediately)
-;; TODO
-(define-syntax-rule (%run-with-return return body ...)
- (make-async-request
- (lambda (kont)
- (let ((return kont))
- (lambda ()
- body ...)))))
+(define-syntax-rule (%8sync-immediate body)
+ "Run body asynchronously but ignore its result...
+forge ahead in our current function!"
+ (%8sync-abort-to-prompt
+ (make-async-request
+ (lambda (kont)
+ (list (make-run-request kont #f)
+ (make-run-request body #f))))))
(define-syntax-rule (catch-8sync exp (handler-key handler) ...)
(catch '8sync-caught-error
projects / 8sync.git / blobdiff