71 lines
1.5 KiB
Racket
71 lines
1.5 KiB
Racket
#lang scribble/manual
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@(require (for-label racket))
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@title{(poll trig in trigid label)}
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Print/query the current output value of a UGen.
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trig - a non-positive to positive transition telling poll to return
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a value
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in - the signal you want to poll
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trigid - if greater then 0, a '/tr' message is sent back to the
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client (similar to send-trig)
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label - a string or symbol to be printed with the polled value
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poll returns its in signal (and is therefore transparent).
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WARNING: Printing values from the Server in intensive for the
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CPU. poll should be used for debugging purposes.
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@racketblock[
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(define (string->ugen s)
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(make-mce
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(cons (string-length s)
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(map char->integer (string->list s)))))
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]
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@racketblock[
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(let ((t (impulse kr 2 0))
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(i (line kr 0 1 5 remove-synth)))
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(audition (poll t i 0 (string->ugen "Test"))))
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]
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@racketblock[
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(with-sc3
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(lambda (fd)
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(letrec ((print (lambda (e) (display e) (newline)))
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(showing (lambda (f) (lambda () (let ((v (f))) (print v) v))))
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(repeat (lambda (f) (if (f) (repeat f) #f))))
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(async fd (/notify 1))
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(repeat (showing (lambda () (wait fd "/tr"))))
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(async fd (/notify 0)))))
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]
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multichannel Expansion (Broken...)
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@racketblock[
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(define (poll* trig in trigId label)
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(poll trig in trigId (string->ugen label)))
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]
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@racketblock[
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(poll* (impulse kr (mce2 10 5) 0)
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(line kr 0 (mce2 1 5) (mce2 1 2) do-nothing)
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0
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"Test")
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]
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@racketblock[
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(with-sc3 server-status)
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]
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