/usr/share/scsh-0.6/env/space.scm is in scsh-common-0.6 0.6.7-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 | ; Copyright (c) 1993-1999 by Richard Kelsey and Jonathan Rees. See file COPYING.
; ,open architecture primitives assembler packages enumerated
; ,open features sort locations display-conditions
(define length-procedures
(do ((i (- stob-count 1) (- i 1))
(l '() (cons (eval `(lap *length ()
(protocol 1)
(pop)
(stored-object-length
,(enumerand->name i stob))
(push)
(literal '2)
(arithmetic-shift)
(return))
(interaction-environment))
l)))
((< i 0) l)))
(define (space)
(collect)
(display " pure impure total") (newline)
(display " count bytes count bytes count bytes")
(newline)
(let loop ((i 0)
(p-count-total 0)
(p-bytes-total 0)
(i-count-total 0)
(i-bytes-total 0))
(if (< i stob-count)
(begin
(collect)
(let ((xs (find-all i))
(length (list-ref length-procedures i)))
(let loop2 ((j (- (vector-length xs) 1))
(p-count 0)
(i-count 0)
(p-bytes 0)
(i-bytes 0))
(if (< j 0)
(begin (report1 (enumerand->name i stob)
p-count p-bytes
i-count i-bytes)
(loop (+ i 1)
(+ p-count-total p-count)
(+ p-bytes-total p-bytes)
(+ i-count-total i-count)
(+ i-bytes-total i-bytes)))
(if (immutable? (vector-ref xs j))
(loop2 (- j 1)
(+ p-count 1)
i-count
(+ p-bytes (+ 4 (length (vector-ref xs j))))
i-bytes)
(loop2 (- j 1)
p-count
(+ i-count 1)
p-bytes
(+ i-bytes (+ 4 (length (vector-ref xs j))))))))))
(report1 'total
p-count-total p-bytes-total
i-count-total i-bytes-total))))
(define (report1 name p-count p-bytes i-count i-bytes)
(write-padded name 16)
(write-padded p-count 7)
(write-padded p-bytes 7)
(write-padded i-count 7)
(write-padded i-bytes 7)
(write-padded (+ p-count i-count) 7)
(write-padded (+ p-bytes i-bytes) 8)
(newline))
(define least-byte-type (enum stob string))
(define (write-padded x pad)
(let ((s (if (symbol? x)
(symbol->string x)
(number->string x))))
(display (make-string (- pad (string-length s)) #\space))
(display s)))
(define (record-space . pred-option)
(collect)
(let ((pred (if (null? pred-option) (lambda (x) #t) (car pred-option)))
(rs (find-all (enum stob record)))
(a '()))
(do ((i (- (vector-length rs) 1) (- i 1)))
((< i 0)
(for-each (lambda (z)
(write-padded (cadr z) 7)
(write-padded (* (caddr z) 4) 7)
(display " ")
(write (car z))
(newline))
(sort-list a (lambda (z1 z2)
(> (caddr z1) (caddr z2))))))
(let* ((r (vector-ref rs i))
(probe (assq (record-ref r 0) a)))
(if (pred r)
(if probe
(begin (set-car! (cdr probe) (+ (cadr probe) 1))
(set-car! (cddr probe) (+ (caddr probe)
(+ 1 (record-length r)))))
(set! a (cons (list (record-ref r 0) 1 (+ 1 (record-length r)))
a))))))))
(define (vector-space . pred-option)
(collect)
(let ((pred (if (null? pred-option) (lambda (x) #t) (car pred-option)))
(vs (find-all (enum stob vector))))
(let ((e-count 0)
(e-bytes 0)
(t-count 0)
(t-bytes 0)
(b-count 0)
(b-bytes 0)
(v-count 0)
(v-bytes 0)
(l-count 0)
(l-bytes 0)
(o-count 0)
(o-bytes 0))
(let loop ((i (- (vector-length vs) 1)))
(if (< i 0)
(let ((fz (lambda (k b what)
(write-padded k 7)
(write-padded b 7)
(display what)
(newline))))
(fz t-count t-bytes " table buckets")
(fz e-count e-bytes " table entries")
(fz b-count b-bytes " bindings")
(fz v-count v-bytes " environment info")
(fz l-count l-bytes " lexical environments")
(fz o-count o-bytes " other"))
(let* ((v (vector-ref vs i))
(len (vector-length v))
(bytes (* (+ len 1) 4)))
(cond ((not (pred v)))
((and (= len 3)
(bucket? (vector-ref v 2)))
(set! e-count (+ e-count 1))
(set! e-bytes (+ e-bytes bytes)))
((and (= len 3)
(location? (vector-ref v 1)))
(set! b-count (+ b-count 1))
(set! b-bytes (+ b-bytes bytes)))
((vector-every bucket? v)
(set! t-count (+ t-count 1))
(set! t-bytes (+ t-bytes bytes)))
((or (and (= len 4)
(integer? (vector-ref v 0))
(list? (vector-ref v 3)))
(vector-every symbol? v))
(set! v-count (+ v-count 1))
(set! v-bytes (+ v-bytes bytes)))
((and (> len 1)
(or (vector? (vector-ref v 0))
(integer? (vector-ref v 0))))
(set! l-count (+ l-count 1))
(set! l-bytes (+ l-bytes bytes)))
(else
;;(if (= (remainder i 197) 0)
;; (begin (write v) (newline)))
(set! o-count (+ o-count 1))
(set! o-bytes (+ o-bytes bytes))))
(loop (- i 1))))))))
(define (bucket? x)
(or (eq? x #f)
(vector? x)))
(define (vector-every pred v)
(let loop ((i (- (vector-length v) 1)))
(if (< i 0)
#t
(if (pred (vector-ref v i))
(loop (- i 1))
#f))))
(define (mutable? x) (not (immutable? x)))
; Print a random sampling of mutable pairs.
(define (pair-space)
(collect)
(let ((vs (find-all (enum stob pair))))
(let loop ((i (- (vector-length vs) 1))
(j 0))
(if (>= i 0)
(let ((x (vector-ref vs i)))
(if (mutable? x)
(begin (if (= (remainder j 293) 0)
(begin (limited-write x (current-output-port) 4 4)
(newline)))
(loop (- i 1) (+ j 1)))
(loop (- i 1) j)))))))
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