(lp))))))
(with-actor-nonblocking-ports
- (let loop ((fragments '())
- (type #f))
- (let ((frame (read-frame-maybe)))
- (cond
- ;; EOF - port is closed.
- ;; @@: Sometimes the eof object appears here as opposed to
- ;; at lookahead, but I'm not sure why
- ((or (not frame) (eof-object? frame))
- (close-down))
- ;; Per section 5.4, control frames may appear interspersed
- ;; along with a fragmented message.
- ((close-frame? frame)
- ;; Per section 5.5.1, echo the close frame back to the
- ;; client before closing the socket. The client may no
- ;; longer be listening.
- (false-if-exception
- (write-frame (make-close-frame (frame-data frame)) client))
- (close-down))
- ((ping-frame? frame)
- ;; Per section 5.5.3, a pong frame must include the exact
- ;; same data as the ping frame.
- (write-frame (make-pong-frame (frame-data frame)) client)
- (loop fragments type))
- ((pong-frame? frame) ; silently ignore pongs
- (loop fragments type))
- ((first-fragment-frame? frame) ; begin accumulating fragments
- (loop (list frame) (frame-type frame)))
- ((final-fragment-frame? frame) ; concatenate all fragments
- (handle-data-frame type (frame-concatenate (reverse fragments)))
- (loop '() #f))
- ((fragment-frame? frame) ; add a fragment
- (loop (cons frame fragments) type))
- ((data-frame? frame) ; unfragmented data frame
- (handle-data-frame (frame-type frame) (frame-data frame))
- (loop '() #f))))))))
+ (lambda ()
+ (let loop ((fragments '())
+ (type #f))
+ (let ((frame (read-frame-maybe)))
+ (cond
+ ;; EOF - port is closed.
+ ;; @@: Sometimes the eof object appears here as opposed to
+ ;; at lookahead, but I'm not sure why
+ ((or (not frame) (eof-object? frame))
+ (close-down))
+ ;; Per section 5.4, control frames may appear interspersed
+ ;; along with a fragmented message.
+ ((close-frame? frame)
+ ;; Per section 5.5.1, echo the close frame back to the
+ ;; client before closing the socket. The client may no
+ ;; longer be listening.
+ (false-if-exception
+ (write-frame (make-close-frame (frame-data frame)) client))
+ (close-down))
+ ((ping-frame? frame)
+ ;; Per section 5.5.3, a pong frame must include the exact
+ ;; same data as the ping frame.
+ (write-frame (make-pong-frame (frame-data frame)) client)
+ (loop fragments type))
+ ((pong-frame? frame) ; silently ignore pongs
+ (loop fragments type))
+ ((first-fragment-frame? frame) ; begin accumulating fragments
+ (loop (list frame) (frame-type frame)))
+ ((final-fragment-frame? frame) ; concatenate all fragments
+ (handle-data-frame type (frame-concatenate (reverse fragments)))
+ (loop '() #f))
+ ((fragment-frame? frame) ; add a fragment
+ (loop (cons frame fragments) type))
+ ((data-frame? frame) ; unfragmented data frame
+ (handle-data-frame (frame-type frame) (frame-data frame))
+ (loop '() #f)))))))))
(define (websocket-server-send websocket-server message client-id data)
(with-actor-nonblocking-ports