remove rnrs dependencies and improve racket comparability
This commit is contained in:
parent
a25985dab2
commit
d37f0a2e03
169
rhs/rhs.rkt
169
rhs/rhs.rkt
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@ -13,31 +13,9 @@ Licensed under GPL (2 or 3? FIXME)
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|#
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(require rnrs)
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(provide (all-defined-out))
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;; to fix rnrs compatibility
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#|
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(define exact inexact->exact)
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(define inexact exact->inexact)
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(define mod remainder)
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|#
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;; JBC, 2014-- looks like most of these library functions have
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;; equivalents in Racket....
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;; quakehead: I'm assuming these functions are to handle the port of rsc3 from haskell to scheme.
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;; this table has basic list functions in haskell vs racket:
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;; https://artyom.me/learning-racket-1#interlude-list-functions
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;; copied here: https://gist.github.com/quakehead/42b25c8891565cf9f761
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;; prelude.scm ;;;;;;;;;;;;;;;;;;;;;;
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;; enumFromThenTo :: a -> a -> a -> [a]
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(define enum-from-then-to
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(letrec ((efdt
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@ -54,47 +32,13 @@ Licensed under GPL (2 or 3? FIXME)
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(lambda (i j)
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(enum-from-then-to i (succ i) j)))
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;; even :: (Integral a) => a -> Bool
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(define even
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even?)
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;; odd :: (Integral a) => a -> Bool
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(define odd
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odd?)
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;; pred :: a -> a
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(define pred
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(lambda (x)
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(- x 1)))
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;; signum :: Num a => a -> a
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(define signum
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(lambda (x)
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(cond ((> x 0) 1)
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((< x 0) -1)
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(else 0))))
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;; succ :: a -> a
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(define succ
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(lambda (x)
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(+ x 1)))
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;; undefined :: a
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(define undefined
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(lambda ()
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(error "undefined" "undefined")))
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;; tuple.scm ;;;;;;;;;;;;
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;; curry :: ((a, b) -> c) -> a -> b -> c
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(define curry
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(lambda (f)
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(lambda (x y)
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(f (tuple2 x y)))))
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(struct duple (p q))
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;; fst :: (a, b) -> a
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@ -109,16 +53,8 @@ Licensed under GPL (2 or 3? FIXME)
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(define tuple2
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duple)
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;; uncurry :: (a -> b -> c) -> (a, b) -> c
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(define uncurry
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(lambda (f)
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(lambda (xy)
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(f (fst xy) (snd xy)))))
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;; data/ord.scm ;;;;;;;;;;;;;;;;
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;; data Ordering = LT | EQ | GT
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;; compare :: (Ord a) => a -> a -> Ordering
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@ -139,22 +75,14 @@ Licensed under GPL (2 or 3? FIXME)
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(if (< x y) x y)))
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;; data/function.scm ;;;;;;;;;;;;;;;;;;
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;; (.) :: (b -> c) -> (a -> b) -> a -> c
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(define compose
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(lambda (f g)
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(lambda (x)
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(f (g x)))))
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;; const :: a -> b -> a
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(define const
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(lambda (x)
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(lambda (_)
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x)))
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;; flip :: (a -> b -> c) -> b -> a -> c
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(define flip
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(lambda (f)
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@ -166,8 +94,6 @@ Licensed under GPL (2 or 3? FIXME)
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(lambda (x)
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x))
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;; data/list.scm ;;;;;;;;;;;;;;;;;;;;;;
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;; all :: (a -> Bool) -> [a] -> Bool
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@ -177,20 +103,6 @@ Licensed under GPL (2 or 3? FIXME)
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#t
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(and (f (head l)) (all f (tail l))))))
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;; and :: [Bool] -> Bool
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(define all-true
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(lambda (l)
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(if (null? l)
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#t
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(and (head l) (all-true (tail l))))))
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;; any :: (a -> Bool) -> [a] -> Bool
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(define any
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(lambda (f l)
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(if (null? l)
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#f
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(or (f (head l)) (any f (tail l))))))
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;; (++) :: [a] -> [a] -> [a]
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(define append2
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(lambda (a b)
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@ -198,11 +110,6 @@ Licensed under GPL (2 or 3? FIXME)
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b
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(cons (head a) (append2 (tail a) b)))))
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;; break :: (a -> Bool) -> [a] -> ([a],[a])
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(define break
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(lambda (p l)
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(span (compose not p) l)))
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;; concat :: [[a]] -> [a]
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(define concat
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(lambda (l)
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@ -243,10 +150,6 @@ Licensed under GPL (2 or 3? FIXME)
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(drop-while p (tail l))
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l))))
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;; elem :: (Eq a) => a -> [a] -> Bool
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(define elem
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(lambda (x l)
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(any (lambda (y) (equal? x y)) l)))
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;; elemIndex :: Eq a => a -> [a] -> Maybe Int
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(define elem-index
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@ -403,19 +306,10 @@ Licensed under GPL (2 or 3? FIXME)
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(head l)
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(last xs)))))
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;; mlength :: [a] -> Int
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(define mlength
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(lambda (l)
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(if (null? l)
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0
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(+ 1 (length (tail l))))))
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;; list1 :: a -> [a]
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(define list1
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(lambda (x)
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(cons x nil)))
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list)
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;; list2 :: a -> a -> [a]
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(define list2
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@ -517,24 +411,7 @@ Licensed under GPL (2 or 3? FIXME)
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;; nil :: [a]
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(define nil
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(list))
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;; notElem :: (Eq a) => a -> [a] -> Bool
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(define not-elem
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(lambda (x l)
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(all (lambda (y) (not (equal? x y))) l)))
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;; null :: [a] -> Bool
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#;(define null?
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(lambda (x)
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(equal? x nil)))
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;; or :: [Bool] -> Bool
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(define any-true
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(lambda (l)
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(if (null? l)
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#f
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(or (head l) (any-true (tail l))))))
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null)
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;; partition :: (a -> Bool) -> [a] -> ([a], [a])
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(define partition*
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@ -646,10 +523,6 @@ Licensed under GPL (2 or 3? FIXME)
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(tuple2 (cons (head l) (fst r)) (snd r)))
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(tuple2 nil l)))))
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;; splitAt :: Int -> [a] -> ([a],[a])
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(define split-at
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(lambda (n l)
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(tuple2 (take n l) (drop n l))))
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;; sum :: (Num a) => [a] -> a
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(define sum
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@ -659,12 +532,6 @@ Licensed under GPL (2 or 3? FIXME)
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;; tail :: [a] -> [a]
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(define tail cdr)
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;; take :: Int -> [a] -> [a]
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(define take
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(lambda (n l)
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(cond ((<= n 0) nil)
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((null? l) nil)
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(else (cons (head l) (take (- n 1) (tail l)))))))
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;; takeWhile :: (a -> Bool) -> [a] -> [a]
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(define take-while
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@ -696,27 +563,6 @@ Licensed under GPL (2 or 3? FIXME)
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(transpose (cons xs
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(map1 (protect tail) xss))))))))))
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;; unfoldr :: (b -> Maybe (a, b)) -> b -> [a]
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(define unfoldr
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(lambda (f x)
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(let ((r (f x)))
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(if r
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(cons (fst r) (unfoldr f (snd r)))
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nil))))
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;; (unfoldr (lambda (b) (if (= b 0) #f (tuple2 b (- b 1)))) 10)
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;; => (10 9 8 7 6 5 4 3 2 1)
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;; union :: (Eq a) => [a] -> [a] -> [a]
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(define union
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(lambda (a b)
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(union-by equal? a b)))
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;; unionBy :: (a -> a -> Bool) -> [a] -> [a] -> [a]
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(define union-by
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(lambda (f xs ys)
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(let ((g (lambda (x y) (delete-by f y x))))
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(append2 xs (foldl g (nub-by f ys) xs)))))
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;; zip :: [a] -> [b] -> [(a, b)]
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(define zip
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@ -760,15 +606,6 @@ Licensed under GPL (2 or 3? FIXME)
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;; data/tree.scm ;;;;;;;;;;;;;;
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;; Tree a -> [a]
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(define flatten
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(letrec ((f (lambda (t r)
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(cond ((null? t) r)
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((pair? t) (f (head t) (f (tail t) r)))
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(else (cons t r))))))
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(lambda (t)
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(f t nil))))
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;; Tree a -> [[a]]
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(define levels
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(lambda (t)
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@ -778,10 +615,8 @@ Licensed under GPL (2 or 3? FIXME)
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(cons (fst lr) (levels (concat (snd lr))))))))
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(module+ test
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(require rackunit)
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(check-equal? (drop 2 '(1 2 3 4 5 6)) '(3 4 5 6))
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(check-equal? (transpose '((1 2) (3 4))) '((1 3) (2 4)))
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)
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758
rsc3/main.rkt
758
rsc3/main.rkt
File diff suppressed because it is too large
Load diff
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@ -1,7 +1,6 @@
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#lang racket
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(require rnrs
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rhs/rhs
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(require rhs/rhs
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rnrs/bytevectors-6
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rnrs/io/ports-6)
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@ -17,7 +16,7 @@
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(define with-input-from-bytevector
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(lambda (b f)
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(let* ((p (open-bytevector-input-port b))
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(r (f p)))
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(r (f p)))
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(close-port p)
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r)))
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@ -25,7 +24,7 @@
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(define bytevector-section
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(lambda (v l r)
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(let* ((n (- r l))
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(w (make-bytevector n 0)))
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(w (make-bytevector n 0)))
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(bytevector-copy! v l w 0 n)
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w)))
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@ -33,27 +32,27 @@
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(define bytevector-find-index
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(lambda (v x)
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(letrec ((f (lambda (i)
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(if (= (bytevector-u8-ref v i) x)
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i
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(f (+ i 1))))))
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(if (= (bytevector-u8-ref v i) x)
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i
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(f (+ i 1))))))
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(f 0))))
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;; Tree bytevector -> bytevector
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(define flatten-bytevectors
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(lambda (t)
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(let* ((l (flatten t))
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(n (map1 bytevector-length l))
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(m (sum n))
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(v (make-bytevector m)))
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(n (map bytevector-length l))
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(m (sum n))
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(v (make-bytevector m)))
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(let loop ((i 0)
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(l l)
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(n n))
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(if (null? l)
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v
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(let ((l0 (car l))
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(n0 (car n)))
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(bytevector-copy! l0 0 v i n0)
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(loop (+ i n0) (cdr l) (cdr n))))))))
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(l l)
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(n n))
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(if (null? l)
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v
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(let ((l0 (car l))
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(n0 (car n)))
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(bytevector-copy! l0 0 v i n0)
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(loop (+ i n0) (cdr l) (cdr n))))))))
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;; number a => (bytevector -> int -> a -> ()) -> int -> a
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(define bytevector-make-and-set1
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@ -72,7 +71,7 @@
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(module+ test
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(require rackunit)
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;; test bytevector-section, which is equivalent ot subbytes
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(test-begin
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(let [(long-vec (bytes 10 20 30 40 50))]
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@ -82,10 +81,10 @@
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long-vec)
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(check-equal? (bytevector-section long-vec 1 3)
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(subbytes long-vec 1 3))
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; check if exceding limits raises exception
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; check if exceding limits raises exception
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(check-exn exn:fail? (λ () (bytevector-section long-vec 0 30)))
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(check-exn exn:fail? (λ () (bytevector-section long-vec -1 3)))))
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(check-equal? (flatten-bytevectors (list (bytes 10 20) (bytes 30 40) (list (bytes 50 60))))
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(bytes 10 20 30 40 50 60)))
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(bytes 10 20 30 40 50 60)))
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564
sosc/encoding.rkt
Normal file
564
sosc/encoding.rkt
Normal file
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@ -0,0 +1,564 @@
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#lang racket
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(require (only-in rnrs inexact exact mod) ;; various overlapping mutable troubles
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(only-in racket/fixnum fxand fxnot) ;; really?
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rhs/rhs
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"bytevector.rkt"
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rnrs/bytevectors-6 ;; TODO - should be provided by bytevector.rkt
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rnrs/io/ports-6 ;; prefer to use racket posts
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)
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(provide message
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bundle
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encode-osc
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decode-osc
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encode-u8
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encode-i16
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encode-i32
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encode-f32
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encode-pstr
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encode-u32
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decode-u32
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osc-display)
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;; bytevector -> int
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(define decode-u8
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(lambda (v)
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(bytevector-u8-ref v 0)))
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;; bytevector -> int
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(define decode-u16
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(lambda (v)
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(bytevector-u16-ref v 0 (endianness big))))
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;; bytevector -> int
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(define decode-u32
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(lambda (v)
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(bytevector-u32-ref v 0 (endianness big))))
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;; bytevector -> int
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(define decode-u64
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(lambda (v)
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(bytevector-u64-ref v 0 (endianness big))))
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;; bytevector -> int
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(define decode-i8
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(lambda (v)
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(bytevector-s8-ref v 0)))
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;; bytevector -> int
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(define decode-i16
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(lambda (v)
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(bytevector-s16-ref v 0 (endianness big))))
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;; bytevector -> int
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(define decode-i32
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(lambda (v)
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(bytevector-s32-ref v 0 (endianness big))))
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;; bytevector -> int
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(define decode-i64
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(lambda (v)
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(bytevector-s64-ref v 0 (endianness big))))
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;; bytevector -> double
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(define decode-f32
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(lambda (v)
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(bytevector-ieee-single-ref v 0 (endianness big))))
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;; bytevector -> double
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(define decode-f64
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(lambda (v)
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(bytevector-ieee-double-ref v 0 (endianness big))))
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;; bytevector -> string
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(define decode-str
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(lambda (b)
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(utf8->string b)))
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;; bytevector -> string
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(define decode-pstr
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(lambda (v)
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(let* ((n (decode-u8 v))
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(w (bytevector-section v 1 (+ n 1))))
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(decode-str w))))
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;; bytevector -> string
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(define decode-cstr
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(lambda (v)
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(let* ((n (bytevector-find-index v 0))
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(w (bytevector-section v 0 n)))
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(decode-str w))))
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;; int -> bytevector
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(define encode-u8
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(lambda (n)
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(bytevector-make-and-set1
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bytevector-u8-set!
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1
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(exact n))))
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;; int -> bytevector
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(define encode-u16
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(lambda (n)
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(bytevector-make-and-set
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bytevector-u16-set!
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2
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(exact n))))
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;; int -> bytevector
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(define encode-u32
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(lambda (n)
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(bytevector-make-and-set
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bytevector-u32-set!
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4
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(exact n))))
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;; int -> bytevector
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(define encode-u64
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(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-u64-set!
|
||||
8
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-i8
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set1
|
||||
bytevector-s8-set!
|
||||
1
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-i16
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-s16-set!
|
||||
2
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-i32
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-s32-set!
|
||||
4
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-i64
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-s64-set!
|
||||
8
|
||||
(exact n))))
|
||||
|
||||
;; double -> bytevector
|
||||
(define encode-f32
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-ieee-single-set!
|
||||
4
|
||||
(inexact n))))
|
||||
|
||||
;; double -> bytevector
|
||||
(define encode-f64
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-ieee-double-set!
|
||||
8
|
||||
(inexact n))))
|
||||
|
||||
;; string -> bytevector
|
||||
(define encode-str
|
||||
(lambda (s)
|
||||
(string->utf8 s)))
|
||||
|
||||
;; string -> bytevector
|
||||
(define encode-pstr
|
||||
(lambda (s)
|
||||
(let* ((b (encode-str s))
|
||||
(n (encode-u8 (bytevector-length b))))
|
||||
(list n b))))
|
||||
|
||||
;; string -> [bytevector]
|
||||
(define encode-cstr
|
||||
(lambda (s)
|
||||
(let* ((b (encode-str s))
|
||||
(z (encode-u8 0)))
|
||||
(list b z))))
|
||||
|
||||
;; port -> string
|
||||
(define read-pstr
|
||||
(lambda (p)
|
||||
(let* ((n (lookahead-u8 p))
|
||||
(v (read-bstr p (+ n 1))))
|
||||
(decode-pstr v))))
|
||||
|
||||
;; port -> string
|
||||
(define read-cstr
|
||||
(lambda (p)
|
||||
(let loop ((l nil)
|
||||
(b (get-u8 p)))
|
||||
(if (= b 0)
|
||||
(list->string (map integer->char (reverse l)))
|
||||
(loop (cons b l) (get-u8 p))))))
|
||||
|
||||
;; port -> int -> bytevector
|
||||
(define read-bstr
|
||||
(lambda (p n)
|
||||
(get-bytevector-n p n)))
|
||||
|
||||
;; port -> int
|
||||
(define read-i16
|
||||
(lambda (p)
|
||||
(decode-i16 (read-bstr p 2))))
|
||||
|
||||
;; port -> int
|
||||
(define read-u16
|
||||
(lambda (p)
|
||||
(decode-u16 (read-bstr p 2))))
|
||||
|
||||
;; port -> int
|
||||
(define read-i32
|
||||
(lambda (p)
|
||||
(decode-i32 (read-bstr p 4))))
|
||||
|
||||
;; port -> int
|
||||
(define read-u32
|
||||
(lambda (p)
|
||||
(decode-u32 (read-bstr p 4))))
|
||||
|
||||
;; port -> int
|
||||
(define read-i64
|
||||
(lambda (p)
|
||||
(decode-i64 (read-bstr p 8))))
|
||||
|
||||
;; port -> int
|
||||
(define read-u64
|
||||
(lambda (p)
|
||||
(decode-u64 (read-bstr p 8))))
|
||||
|
||||
;; port -> double
|
||||
(define read-f32
|
||||
(lambda (p)
|
||||
(decode-f32 (read-bstr p 4))))
|
||||
|
||||
;; port -> double
|
||||
(define read-f64
|
||||
(lambda (p)
|
||||
(decode-f64 (read-bstr p 8))))
|
||||
|
||||
;; int
|
||||
(define seconds-from-1900-to-1970
|
||||
(+ (* 70 365 24 60 60) (* 17 24 60 60)))
|
||||
|
||||
;; double -> int
|
||||
(define ntpr->ntp
|
||||
(lambda (n)
|
||||
(exact (round (* n (expt 2 32))))))
|
||||
|
||||
;; double -> double
|
||||
(define utc->ntpr
|
||||
(lambda (n)
|
||||
(+ n seconds-from-1900-to-1970)))
|
||||
|
||||
;; int -> double
|
||||
(define ntp->utc
|
||||
(lambda (n)
|
||||
(- (/ n (expt 2 32)) seconds-from-1900-to-1970)))
|
||||
|
||||
;; port -> string
|
||||
(define read-ostr
|
||||
(lambda (p)
|
||||
(let* ((s (read-cstr p))
|
||||
(n (mod (cstring-length s) 4))
|
||||
(i (- 4 (mod n 4))))
|
||||
(if (not (= n 0))
|
||||
(read-bstr p i)
|
||||
#f)
|
||||
s)))
|
||||
|
||||
;; port -> bytevector
|
||||
(define read-obyt
|
||||
(lambda (p)
|
||||
(let* ((n (read-i32 p))
|
||||
(b (read-bstr p n))
|
||||
(i (- 4 (mod n 4))))
|
||||
(if (not (= n 0))
|
||||
(read-bstr p i)
|
||||
#f)
|
||||
b)))
|
||||
|
||||
;; datum = int | double | string | bytevector
|
||||
|
||||
;; port -> char -> datum
|
||||
(define read-value
|
||||
(lambda (p t)
|
||||
(cond
|
||||
((equal? t oI32) (read-i32 p))
|
||||
((equal? t oI64) (read-i64 p))
|
||||
((equal? t oU64) (read-u64 p))
|
||||
((equal? t oF32) (read-f32 p))
|
||||
((equal? t oF64) (read-f64 p))
|
||||
((equal? t oSTR) (read-ostr p))
|
||||
((equal? t oBYT) (read-obyt p))
|
||||
((equal? t oMID) (read-u32 p))
|
||||
(else (error "read-value" "bad type" t)))))
|
||||
|
||||
;; port -> [char] -> [datum]
|
||||
(define read-arguments
|
||||
(lambda (p types)
|
||||
(if (null? types)
|
||||
'()
|
||||
(cons (read-value p (car types))
|
||||
(read-arguments p (cdr types))))))
|
||||
|
||||
;; port -> (string:[datum])
|
||||
(define read-message
|
||||
(lambda (p)
|
||||
(let* ((address (read-ostr p))
|
||||
(types (read-ostr p)))
|
||||
(cons address
|
||||
(read-arguments p (cdr (string->list types)))))))
|
||||
|
||||
;; port -> (utc:[message])
|
||||
(define read-bundle
|
||||
(lambda (p)
|
||||
(let ((bundletag (read-ostr p))
|
||||
(timetag (ntp->utc (read-u64 p)))
|
||||
(parts (list)))
|
||||
(if (not (equal? bundletag "#bundle"))
|
||||
(error "read-bundle"
|
||||
"illegal bundle tag"
|
||||
bundletag)
|
||||
(cons timetag
|
||||
(let loop ((parts (list)))
|
||||
(if (eof-object? (lookahead-u8 p))
|
||||
(reverse parts)
|
||||
(begin
|
||||
;; We have no use for the message size...
|
||||
(read-i32 p)
|
||||
(loop (cons (read-packet p) parts))))))))))
|
||||
|
||||
;; byte
|
||||
(define hash-u8
|
||||
(char->integer #\#))
|
||||
|
||||
;; port -> osc
|
||||
(define read-packet
|
||||
(lambda (p)
|
||||
(if (equal? (lookahead-u8 p) hash-u8)
|
||||
(read-bundle p)
|
||||
(read-message p))))
|
||||
|
||||
;; bytevector -> osc
|
||||
(define decode-osc
|
||||
(lambda (b)
|
||||
(with-input-from-bytevector b read-packet)))
|
||||
|
||||
;; [byte] -> ()
|
||||
(define osc-display
|
||||
(lambda (l)
|
||||
(zip-with
|
||||
(lambda (b n)
|
||||
(display (list (number->string b 16) (integer->char b)))
|
||||
(if (= 3 (mod n 4))
|
||||
(newline)
|
||||
(display #\space)))
|
||||
l
|
||||
(enum-from-to 0 (- (length l) 1)))))
|
||||
|
||||
;; string -> int
|
||||
(define cstring-length
|
||||
(lambda (s)
|
||||
(+ 1 (string-length s))))
|
||||
|
||||
;; int -> int
|
||||
;; (equal? (map osc-align (enum-from-to 0 7)) (list 0 3 2 1 0 3 2 1))
|
||||
(define osc-align
|
||||
(lambda (n)
|
||||
(- (fxand (+ n 3) (fxnot 3)) n)))
|
||||
|
||||
;; int -> [bytevector]
|
||||
(define padding-of
|
||||
(lambda (n) (replicate (osc-align n) (encode-u8 0))))
|
||||
|
||||
;; string -> [bytevector]
|
||||
(define encode-string
|
||||
(lambda (s)
|
||||
(list (encode-cstr s) (padding-of (cstring-length s)))))
|
||||
|
||||
;; bytevector -> [bytevector]
|
||||
(define encode-bytes
|
||||
(lambda (b)
|
||||
(let ((n (bytevector-length b)))
|
||||
(list (encode-i32 n)
|
||||
b
|
||||
(padding-of n)))))
|
||||
|
||||
;; datum -> bytevector
|
||||
(define encode-value
|
||||
(lambda (e)
|
||||
(cond ((number? e) (if (integer? e)
|
||||
(encode-i32 e)
|
||||
(encode-f32 e)))
|
||||
((string? e) (encode-string e))
|
||||
((bytevector? e) (encode-bytes e))
|
||||
(else (error "encode-value" "illegal value" e)))))
|
||||
|
||||
;; [datum] -> bytevector
|
||||
(define encode-types
|
||||
(lambda (l)
|
||||
(encode-string
|
||||
(list->string
|
||||
(cons #\,
|
||||
(map (lambda (e)
|
||||
(cond ((number? e) (if (integer? e)
|
||||
#\i
|
||||
#\f))
|
||||
((string? e) #\s)
|
||||
((bytevector? e) #\b)
|
||||
(else (error "encode-types" "type?" e))))
|
||||
l))))))
|
||||
|
||||
;; osc -> [bytevector]
|
||||
(define encode-message
|
||||
(lambda (m)
|
||||
(list (encode-string (car m))
|
||||
(encode-types (cdr m))
|
||||
(map encode-value (cdr m)))))
|
||||
|
||||
;; osc -> [bytevector]
|
||||
(define encode-bundle-ntp
|
||||
(lambda (b)
|
||||
(list (encode-string "#bundle")
|
||||
(encode-u64 (ntpr->ntp (car b)))
|
||||
(map (lambda (e)
|
||||
(if (message? e)
|
||||
(encode-bytes (encode-osc e))
|
||||
(error "encode-bundle" "illegal value" e)))
|
||||
(cdr b)))))
|
||||
|
||||
;; osc -> [bytevector]
|
||||
(define encode-bundle
|
||||
(lambda (b)
|
||||
(encode-bundle-ntp (cons (utc->ntpr (car b)) (cdr b)))))
|
||||
|
||||
;; osc -> bytevector
|
||||
(define encode-osc
|
||||
(lambda (p)
|
||||
(flatten-bytevectors
|
||||
(if (bundle? p)
|
||||
(encode-bundle p)
|
||||
(encode-message p)))))
|
||||
|
||||
;; any | [any] -> datum | [datum]
|
||||
(define purify
|
||||
(lambda (e)
|
||||
(cond ((or (number? e) (string? e) (bytevector? e)) e)
|
||||
((list? e) (map purify e))
|
||||
((symbol? e) (symbol->string e))
|
||||
((boolean? e) (if e 1 0))
|
||||
(else (error "purify" "illegal input" e)))))
|
||||
|
||||
;; char
|
||||
(define oI32 #\i)
|
||||
(define oI64 #\h)
|
||||
(define oU64 #\t)
|
||||
(define oF32 #\f)
|
||||
(define oF64 #\d)
|
||||
(define oSTR #\s)
|
||||
(define oBYT #\b)
|
||||
(define oMID #\m)
|
||||
|
||||
;; string -> [any] -> osc
|
||||
(define message
|
||||
(lambda (c l)
|
||||
(if (string? c)
|
||||
(cons c l)
|
||||
(error "message" "illegal address"))))
|
||||
|
||||
;; float -> [any] -> osc
|
||||
(define bundle
|
||||
(lambda (t l)
|
||||
(if (number? t)
|
||||
(cons t l)
|
||||
(error "bundle" "illegal timestamp" t))))
|
||||
|
||||
;; osc -> bool
|
||||
(define message?
|
||||
(lambda (p)
|
||||
(string? (car p))))
|
||||
|
||||
;; osc -> bool
|
||||
(define bundle?
|
||||
(lambda (p)
|
||||
(number? (car p))))
|
||||
|
||||
;; osc -> bool
|
||||
(define verify-message
|
||||
(lambda (m)
|
||||
(and (string? (car m))
|
||||
(all (lambda (e) (or (number? e)
|
||||
(string? e)))
|
||||
(cdr m)))))
|
||||
|
||||
;; osc -> bool
|
||||
(define verify-bundle
|
||||
(lambda (b)
|
||||
(and (integer? (car b))
|
||||
(all (lambda (e) (or (verify-message e)
|
||||
(and (verify-bundle e)
|
||||
(>= (car e) (car b)))))
|
||||
(cdr b)))))
|
||||
|
||||
;; osc -> bool
|
||||
(define verify-packet
|
||||
(lambda (p)
|
||||
(or (verify-message p)
|
||||
(verify-bundle p))))
|
||||
|
||||
|
||||
|
||||
(module+ test
|
||||
(require rackunit)
|
||||
|
||||
;; test from Clement's osc package (osc-to-bytes.rkt)
|
||||
;; in sosc, strings are just "abc", blobs are #"abc".
|
||||
;; in osc, strings are #"abc", blobs are ('blob #"abc")
|
||||
(check-equal? (encode-osc (message "/abc/def"
|
||||
(list
|
||||
3 6 2.278
|
||||
"froggy"
|
||||
#"derple")))
|
||||
(bytes-append
|
||||
#"/abc/def\000\000\000\000,iifsb\0\0"
|
||||
(bytes 0 0 0 3)
|
||||
(bytes 0 0 0 6)
|
||||
#"@\21\312\301"
|
||||
#"froggy\0\0"
|
||||
(bytes 0 0 0 6)
|
||||
#"derple"
|
||||
(bytes 0 0)))
|
||||
|
||||
|
||||
)
|
||||
|
||||
|
||||
#|
|
||||
|
||||
(define m1 (encode-osc (message "/a/b" (list 257))))
|
||||
|
||||
|
||||
|
||||
;; try to create a call graph
|
||||
(require profile)
|
||||
(require profile/render-graphviz)
|
||||
|
||||
(profile-thunk trace-encode
|
||||
#:render render
|
||||
#:use-errortrace? #t)
|
||||
|#
|
||||
41
sosc/ip.rkt
41
sosc/ip.rkt
|
|
@ -1,15 +1,9 @@
|
|||
#lang racket
|
||||
|
||||
;; from plt/ip.scm ;;;;;;;;;;
|
||||
|
||||
|
||||
(require (prefix-in plt: racket)
|
||||
(prefix-in plt: racket/udp)
|
||||
"bytevector.rkt")
|
||||
(require "bytevector.rkt")
|
||||
|
||||
(provide (all-defined-out))
|
||||
|
||||
|
||||
;; data udp
|
||||
(struct udp* (s h p))
|
||||
|
||||
|
|
@ -20,35 +14,35 @@
|
|||
;; string -> int -> socket
|
||||
(define udp:open
|
||||
(lambda (h p)
|
||||
(udp* (plt:udp-open-socket h p) h p)))
|
||||
(udp* (udp-open-socket h p) h p)))
|
||||
|
||||
;; socket -> bytevector -> ()
|
||||
(define udp:send
|
||||
(lambda (u b)
|
||||
(let ((s (udp*-s u))
|
||||
(h (udp*-h u))
|
||||
(p (udp*-p u)))
|
||||
(plt:udp-send-to* s h p b))))
|
||||
(h (udp*-h u))
|
||||
(p (udp*-p u)))
|
||||
(udp-send-to* s h p b))))
|
||||
|
||||
;; socket -> maybe bytevector
|
||||
(define udp:recv
|
||||
(lambda (u)
|
||||
(let* ((s (udp*-s u))
|
||||
(h (udp*-h u))
|
||||
(p (udp*-p u))
|
||||
(b (make-bytes 8192))
|
||||
(r (plt:sync/timeout 1.0 (plt:udp-receive!-evt s b))))
|
||||
(h (udp*-h u))
|
||||
(p (udp*-p u))
|
||||
(b (make-bytes 8192))
|
||||
(r (sync/timeout 1.0 (udp-receive!-evt s b))))
|
||||
(if r
|
||||
(plt:subbytes b 0 (plt:car r))
|
||||
#f))))
|
||||
(subbytes b 0 (car r))
|
||||
#f))))
|
||||
|
||||
;; socket -> ()
|
||||
(define udp:close
|
||||
(lambda (u)
|
||||
(plt:udp-close (udp*-s u))))
|
||||
(udp-close (udp*-s u))))
|
||||
|
||||
;; data tcp
|
||||
(plt:define-struct tcp* (i o h p))
|
||||
(define-struct tcp* (i o h p))
|
||||
|
||||
;; any -> bool
|
||||
(define tcp:socket?
|
||||
|
|
@ -58,10 +52,10 @@
|
|||
(define tcp:open
|
||||
(lambda (h p)
|
||||
(let-values
|
||||
(((i o) (plt:tcp-connect h p)))
|
||||
(plt:file-stream-buffer-mode i 'none)
|
||||
(plt:file-stream-buffer-mode o 'none)
|
||||
(make-tcp* i o h p))))
|
||||
(((i o) (tcp-connect h p)))
|
||||
(file-stream-buffer-mode i 'none)
|
||||
(file-stream-buffer-mode o 'none)
|
||||
(make-tcp* i o h p))))
|
||||
|
||||
;; socket -> bytevector -> ()
|
||||
(define tcp:send
|
||||
|
|
@ -79,4 +73,3 @@
|
|||
(lambda (fd)
|
||||
(close-input-port (tcp*-i fd))
|
||||
(close-output-port (tcp*-o fd))))
|
||||
|
||||
|
|
|
|||
570
sosc/sosc.rkt
570
sosc/sosc.rkt
|
|
@ -1,562 +1,12 @@
|
|||
#lang racket
|
||||
|
||||
(require
|
||||
rnrs
|
||||
rhs/rhs
|
||||
"bytevector.rkt"
|
||||
rnrs/bytevectors-6 ;; TODO - should be provided by bytevector.rkt
|
||||
rnrs/io/ports-6
|
||||
)
|
||||
|
||||
(provide message
|
||||
bundle
|
||||
encode-osc
|
||||
decode-osc
|
||||
encode-u8
|
||||
encode-i16
|
||||
encode-i32
|
||||
encode-f32
|
||||
encode-pstr
|
||||
encode-u32
|
||||
decode-u32 )
|
||||
|
||||
;; bytevector -> int
|
||||
(define decode-u8
|
||||
(lambda (v)
|
||||
(bytevector-u8-ref v 0)))
|
||||
|
||||
;; bytevector -> int
|
||||
(define decode-u16
|
||||
(lambda (v)
|
||||
(bytevector-u16-ref v 0 (endianness big))))
|
||||
|
||||
;; bytevector -> int
|
||||
(define decode-u32
|
||||
(lambda (v)
|
||||
(bytevector-u32-ref v 0 (endianness big))))
|
||||
|
||||
;; bytevector -> int
|
||||
(define decode-u64
|
||||
(lambda (v)
|
||||
(bytevector-u64-ref v 0 (endianness big))))
|
||||
|
||||
;; bytevector -> int
|
||||
(define decode-i8
|
||||
(lambda (v)
|
||||
(bytevector-s8-ref v 0)))
|
||||
|
||||
;; bytevector -> int
|
||||
(define decode-i16
|
||||
(lambda (v)
|
||||
(bytevector-s16-ref v 0 (endianness big))))
|
||||
|
||||
;; bytevector -> int
|
||||
(define decode-i32
|
||||
(lambda (v)
|
||||
(bytevector-s32-ref v 0 (endianness big))))
|
||||
|
||||
;; bytevector -> int
|
||||
(define decode-i64
|
||||
(lambda (v)
|
||||
(bytevector-s64-ref v 0 (endianness big))))
|
||||
|
||||
;; bytevector -> double
|
||||
(define decode-f32
|
||||
(lambda (v)
|
||||
(bytevector-ieee-single-ref v 0 (endianness big))))
|
||||
|
||||
;; bytevector -> double
|
||||
(define decode-f64
|
||||
(lambda (v)
|
||||
(bytevector-ieee-double-ref v 0 (endianness big))))
|
||||
|
||||
;; bytevector -> string
|
||||
(define decode-str
|
||||
(lambda (b)
|
||||
(utf8->string b)))
|
||||
|
||||
;; bytevector -> string
|
||||
(define decode-pstr
|
||||
(lambda (v)
|
||||
(let* ((n (decode-u8 v))
|
||||
(w (bytevector-section v 1 (+ n 1))))
|
||||
(decode-str w))))
|
||||
|
||||
;; bytevector -> string
|
||||
(define decode-cstr
|
||||
(lambda (v)
|
||||
(let* ((n (bytevector-find-index v 0))
|
||||
(w (bytevector-section v 0 n)))
|
||||
(decode-str w))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-u8
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set1
|
||||
bytevector-u8-set!
|
||||
1
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-u16
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-u16-set!
|
||||
2
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-u32
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-u32-set!
|
||||
4
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-u64
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-u64-set!
|
||||
8
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-i8
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set1
|
||||
bytevector-s8-set!
|
||||
1
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-i16
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-s16-set!
|
||||
2
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-i32
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-s32-set!
|
||||
4
|
||||
(exact n))))
|
||||
|
||||
;; int -> bytevector
|
||||
(define encode-i64
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-s64-set!
|
||||
8
|
||||
(exact n))))
|
||||
|
||||
;; double -> bytevector
|
||||
(define encode-f32
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-ieee-single-set!
|
||||
4
|
||||
(inexact n))))
|
||||
|
||||
;; double -> bytevector
|
||||
(define encode-f64
|
||||
(lambda (n)
|
||||
(bytevector-make-and-set
|
||||
bytevector-ieee-double-set!
|
||||
8
|
||||
(inexact n))))
|
||||
|
||||
;; string -> bytevector
|
||||
(define encode-str
|
||||
(lambda (s)
|
||||
(string->utf8 s)))
|
||||
|
||||
;; string -> bytevector
|
||||
(define encode-pstr
|
||||
(lambda (s)
|
||||
(let* ((b (encode-str s))
|
||||
(n (encode-u8 (bytevector-length b))))
|
||||
(list n b))))
|
||||
|
||||
;; string -> [bytevector]
|
||||
(define encode-cstr
|
||||
(lambda (s)
|
||||
(let* ((b (encode-str s))
|
||||
(z (encode-u8 0)))
|
||||
(list b z))))
|
||||
|
||||
;; port -> string
|
||||
(define read-pstr
|
||||
(lambda (p)
|
||||
(let* ((n (lookahead-u8 p))
|
||||
(v (read-bstr p (+ n 1))))
|
||||
(decode-pstr v))))
|
||||
|
||||
;; port -> string
|
||||
(define read-cstr
|
||||
(lambda (p)
|
||||
(let loop ((l nil)
|
||||
(b (get-u8 p)))
|
||||
(if (= b 0)
|
||||
(list->string (map1 integer->char (reverse l)))
|
||||
(loop (cons b l) (get-u8 p))))))
|
||||
|
||||
;; port -> int -> bytevector
|
||||
(define read-bstr
|
||||
(lambda (p n)
|
||||
(get-bytevector-n p n)))
|
||||
|
||||
;; port -> int
|
||||
(define read-i16
|
||||
(lambda (p)
|
||||
(decode-i16 (read-bstr p 2))))
|
||||
|
||||
;; port -> int
|
||||
(define read-u16
|
||||
(lambda (p)
|
||||
(decode-u16 (read-bstr p 2))))
|
||||
|
||||
;; port -> int
|
||||
(define read-i32
|
||||
(lambda (p)
|
||||
(decode-i32 (read-bstr p 4))))
|
||||
|
||||
;; port -> int
|
||||
(define read-u32
|
||||
(lambda (p)
|
||||
(decode-u32 (read-bstr p 4))))
|
||||
|
||||
;; port -> int
|
||||
(define read-i64
|
||||
(lambda (p)
|
||||
(decode-i64 (read-bstr p 8))))
|
||||
|
||||
;; port -> int
|
||||
(define read-u64
|
||||
(lambda (p)
|
||||
(decode-u64 (read-bstr p 8))))
|
||||
|
||||
;; port -> double
|
||||
(define read-f32
|
||||
(lambda (p)
|
||||
(decode-f32 (read-bstr p 4))))
|
||||
|
||||
;; port -> double
|
||||
(define read-f64
|
||||
(lambda (p)
|
||||
(decode-f64 (read-bstr p 8))))
|
||||
|
||||
;; int
|
||||
(define seconds-from-1900-to-1970
|
||||
(+ (* 70 365 24 60 60) (* 17 24 60 60)))
|
||||
|
||||
;; double -> int
|
||||
(define ntpr->ntp
|
||||
(lambda (n)
|
||||
(exact (round (* n (expt 2 32))))))
|
||||
|
||||
;; double -> double
|
||||
(define utc->ntpr
|
||||
(lambda (n)
|
||||
(+ n seconds-from-1900-to-1970)))
|
||||
|
||||
;; int -> double
|
||||
(define ntp->utc
|
||||
(lambda (n)
|
||||
(- (/ n (expt 2 32)) seconds-from-1900-to-1970)))
|
||||
|
||||
;; port -> string
|
||||
(define read-ostr
|
||||
(lambda (p)
|
||||
(let* ((s (read-cstr p))
|
||||
(n (mod (cstring-length s) 4))
|
||||
(i (- 4 (mod n 4))))
|
||||
(if (not (= n 0))
|
||||
(read-bstr p i)
|
||||
#f)
|
||||
s)))
|
||||
|
||||
;; port -> bytevector
|
||||
(define read-obyt
|
||||
(lambda (p)
|
||||
(let* ((n (read-i32 p))
|
||||
(b (read-bstr p n))
|
||||
(i (- 4 (mod n 4))))
|
||||
(if (not (= n 0))
|
||||
(read-bstr p i)
|
||||
#f)
|
||||
b)))
|
||||
|
||||
;; datum = int | double | string | bytevector
|
||||
|
||||
;; port -> char -> datum
|
||||
(define read-value
|
||||
(lambda (p t)
|
||||
(cond
|
||||
((equal? t oI32) (read-i32 p))
|
||||
((equal? t oI64) (read-i64 p))
|
||||
((equal? t oU64) (read-u64 p))
|
||||
((equal? t oF32) (read-f32 p))
|
||||
((equal? t oF64) (read-f64 p))
|
||||
((equal? t oSTR) (read-ostr p))
|
||||
((equal? t oBYT) (read-obyt p))
|
||||
((equal? t oMID) (read-u32 p))
|
||||
(else (error "read-value" "bad type" t)))))
|
||||
|
||||
;; port -> [char] -> [datum]
|
||||
(define read-arguments
|
||||
(lambda (p types)
|
||||
(if (null? types)
|
||||
'()
|
||||
(cons (read-value p (car types))
|
||||
(read-arguments p (cdr types))))))
|
||||
|
||||
;; port -> (string:[datum])
|
||||
(define read-message
|
||||
(lambda (p)
|
||||
(let* ((address (read-ostr p))
|
||||
(types (read-ostr p)))
|
||||
(cons address
|
||||
(read-arguments p (cdr (string->list types)))))))
|
||||
|
||||
;; port -> (utc:[message])
|
||||
(define read-bundle
|
||||
(lambda (p)
|
||||
(let ((bundletag (read-ostr p))
|
||||
(timetag (ntp->utc (read-u64 p)))
|
||||
(parts (list)))
|
||||
(if (not (equal? bundletag "#bundle"))
|
||||
(error "read-bundle"
|
||||
"illegal bundle tag"
|
||||
bundletag)
|
||||
(cons timetag
|
||||
(let loop ((parts (list)))
|
||||
(if (eof-object? (lookahead-u8 p))
|
||||
(reverse parts)
|
||||
(begin
|
||||
;; We have no use for the message size...
|
||||
(read-i32 p)
|
||||
(loop (cons (read-packet p) parts))))))))))
|
||||
|
||||
;; byte
|
||||
(define hash-u8
|
||||
(char->integer #\#))
|
||||
|
||||
;; port -> osc
|
||||
(define read-packet
|
||||
(lambda (p)
|
||||
(if (equal? (lookahead-u8 p) hash-u8)
|
||||
(read-bundle p)
|
||||
(read-message p))))
|
||||
|
||||
;; bytevector -> osc
|
||||
(define decode-osc
|
||||
(lambda (b)
|
||||
(with-input-from-bytevector b read-packet)))
|
||||
|
||||
;; [byte] -> ()
|
||||
(define osc-display
|
||||
(lambda (l)
|
||||
(zip-with
|
||||
(lambda (b n)
|
||||
(display (list (number->string b 16) (integer->char b)))
|
||||
(if (= 3 (mod n 4))
|
||||
(newline)
|
||||
(display #\space)))
|
||||
l
|
||||
(enum-from-to 0 (- (length l) 1)))))
|
||||
|
||||
;; string -> int
|
||||
(define cstring-length
|
||||
(lambda (s)
|
||||
(+ 1 (string-length s))))
|
||||
|
||||
;; int -> int
|
||||
;; (equal? (map osc-align (enum-from-to 0 7)) (list 0 3 2 1 0 3 2 1))
|
||||
(define osc-align
|
||||
(lambda (n)
|
||||
(- (fxand (+ n 3) (fxnot 3)) n)))
|
||||
|
||||
;; int -> [bytevector]
|
||||
(define padding-of
|
||||
(lambda (n) (replicate (osc-align n) (encode-u8 0))))
|
||||
|
||||
;; string -> [bytevector]
|
||||
(define encode-string
|
||||
(lambda (s)
|
||||
(list (encode-cstr s) (padding-of (cstring-length s)))))
|
||||
|
||||
;; bytevector -> [bytevector]
|
||||
(define encode-bytes
|
||||
(lambda (b)
|
||||
(let ((n (bytevector-length b)))
|
||||
(list (encode-i32 n)
|
||||
b
|
||||
(padding-of n)))))
|
||||
|
||||
;; datum -> bytevector
|
||||
(define encode-value
|
||||
(lambda (e)
|
||||
(cond ((number? e) (if (integer? e)
|
||||
(encode-i32 e)
|
||||
(encode-f32 e)))
|
||||
((string? e) (encode-string e))
|
||||
((bytevector? e) (encode-bytes e))
|
||||
(else (error "encode-value" "illegal value" e)))))
|
||||
|
||||
;; [datum] -> bytevector
|
||||
(define encode-types
|
||||
(lambda (l)
|
||||
(encode-string
|
||||
(list->string
|
||||
(cons #\,
|
||||
(map1 (lambda (e)
|
||||
(cond ((number? e) (if (integer? e)
|
||||
#\i
|
||||
#\f))
|
||||
((string? e) #\s)
|
||||
((bytevector? e) #\b)
|
||||
(else (error "encode-types" "type?" e))))
|
||||
l))))))
|
||||
|
||||
;; osc -> [bytevector]
|
||||
(define encode-message
|
||||
(lambda (m)
|
||||
(list (encode-string (car m))
|
||||
(encode-types (cdr m))
|
||||
(map1 encode-value (cdr m)))))
|
||||
|
||||
;; osc -> [bytevector]
|
||||
(define encode-bundle-ntp
|
||||
(lambda (b)
|
||||
(list (encode-string "#bundle")
|
||||
(encode-u64 (ntpr->ntp (car b)))
|
||||
(map1 (lambda (e)
|
||||
(if (message? e)
|
||||
(encode-bytes (encode-osc e))
|
||||
(error "encode-bundle" "illegal value" e)))
|
||||
(cdr b)))))
|
||||
|
||||
;; osc -> [bytevector]
|
||||
(define encode-bundle
|
||||
(lambda (b)
|
||||
(encode-bundle-ntp (cons (utc->ntpr (car b)) (cdr b)))))
|
||||
|
||||
;; osc -> bytevector
|
||||
(define encode-osc
|
||||
(lambda (p)
|
||||
(flatten-bytevectors
|
||||
(if (bundle? p)
|
||||
(encode-bundle p)
|
||||
(encode-message p)))))
|
||||
|
||||
;; any | [any] -> datum | [datum]
|
||||
(define purify
|
||||
(lambda (e)
|
||||
(cond ((or (number? e) (string? e) (bytevector? e)) e)
|
||||
((list? e) (map1 purify e))
|
||||
((symbol? e) (symbol->string e))
|
||||
((boolean? e) (if e 1 0))
|
||||
(else (error "purify" "illegal input" e)))))
|
||||
|
||||
;; char
|
||||
(define oI32 #\i)
|
||||
(define oI64 #\h)
|
||||
(define oU64 #\t)
|
||||
(define oF32 #\f)
|
||||
(define oF64 #\d)
|
||||
(define oSTR #\s)
|
||||
(define oBYT #\b)
|
||||
(define oMID #\m)
|
||||
|
||||
;; string -> [any] -> osc
|
||||
(define message
|
||||
(lambda (c l)
|
||||
(if (string? c)
|
||||
(cons c l)
|
||||
(error "message" "illegal address"))))
|
||||
|
||||
;; float -> [any] -> osc
|
||||
(define bundle
|
||||
(lambda (t l)
|
||||
(if (number? t)
|
||||
(cons t l)
|
||||
(error "bundle" "illegal timestamp" t))))
|
||||
|
||||
;; osc -> bool
|
||||
(define message?
|
||||
(lambda (p)
|
||||
(string? (car p))))
|
||||
|
||||
;; osc -> bool
|
||||
(define bundle?
|
||||
(lambda (p)
|
||||
(number? (car p))))
|
||||
|
||||
;; osc -> bool
|
||||
(define verify-message
|
||||
(lambda (m)
|
||||
(and (string? (car m))
|
||||
(all (lambda (e) (or (number? e)
|
||||
(string? e)))
|
||||
(cdr m)))))
|
||||
|
||||
;; osc -> bool
|
||||
(define verify-bundle
|
||||
(lambda (b)
|
||||
(and (integer? (car b))
|
||||
(all (lambda (e) (or (verify-message e)
|
||||
(and (verify-bundle e)
|
||||
(>= (car e) (car b)))))
|
||||
(cdr b)))))
|
||||
|
||||
;; osc -> bool
|
||||
(define verify-packet
|
||||
(lambda (p)
|
||||
(or (verify-message p)
|
||||
(verify-bundle p))))
|
||||
|
||||
|
||||
|
||||
(module+ test
|
||||
(require rackunit)
|
||||
|
||||
;; test from Clement's osc package (osc-to-bytes.rkt)
|
||||
;; in sosc, strings are just "abc", blobs are #"abc".
|
||||
;; in osc, strings are #"abc", blobs are ('blob #"abc")
|
||||
(check-equal? (encode-osc (message "/abc/def"
|
||||
(list
|
||||
3 6 2.278
|
||||
"froggy"
|
||||
#"derple")))
|
||||
(bytes-append
|
||||
#"/abc/def\000\000\000\000,iifsb\0\0"
|
||||
(bytes 0 0 0 3)
|
||||
(bytes 0 0 0 6)
|
||||
#"@\21\312\301"
|
||||
#"froggy\0\0"
|
||||
(bytes 0 0 0 6)
|
||||
#"derple"
|
||||
(bytes 0 0)))
|
||||
|
||||
|
||||
)
|
||||
|
||||
|
||||
#|
|
||||
|
||||
(define m1 (encode-osc (message "/a/b" (list 257))))
|
||||
|
||||
|
||||
|
||||
;; try to create a call graph
|
||||
(require profile)
|
||||
(require profile/render-graphviz)
|
||||
|
||||
(profile-thunk trace-encode
|
||||
#:render render
|
||||
#:use-errortrace? #t)
|
||||
|#
|
||||
(require "bytevector.rkt"
|
||||
"transport.rkt"
|
||||
"encoding.rkt"
|
||||
"ip.rkt")
|
||||
|
||||
(provide
|
||||
(all-from-out "bytevector.rkt"
|
||||
"transport.rkt"
|
||||
"encoding.rkt"
|
||||
"ip.rkt"))
|
||||
|
|
|
|||
|
|
@ -1,16 +1,12 @@
|
|||
#lang racket
|
||||
|
||||
;; from transport.scm ;;;;;;;
|
||||
|
||||
(require rnrs
|
||||
"bytevector.rkt"
|
||||
"sosc.rkt"
|
||||
(require "bytevector.rkt"
|
||||
"encoding.rkt"
|
||||
"ip.rkt")
|
||||
|
||||
(provide (all-defined-out)
|
||||
(all-from-out "ip.rkt"))
|
||||
|
||||
|
||||
(provide send
|
||||
recv
|
||||
wait)
|
||||
|
||||
;; socket -> osc -> ()
|
||||
(define send
|
||||
|
|
@ -41,4 +37,3 @@
|
|||
((not p) (error "error" "Could not connect to the SuperCollider server"))
|
||||
((not (string=? (car p) s)) (error "wait" "bad return packet" p s))
|
||||
(else p)))))
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue