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;;; back.ss
;;; Copyright 1984-2017 Cisco Systems, Inc.
;;;
;;; Licensed under the Apache License, Version 2.0 (the "License");
;;; you may not use this file except in compliance with the License.
;;; You may obtain a copy of the License at
;;;
;;; http://www.apache.org/licenses/LICENSE-2.0
;;;
;;; Unless required by applicable law or agreed to in writing, software
;;; distributed under the License is distributed on an "AS IS" BASIS,
;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;;; See the License for the specific language governing permissions and
;;; limitations under the License.
(begin
(define-who trace-output-port
($make-thread-parameter
(console-output-port)
(lambda (x)
(unless (and (output-port? x) (textual-port? x))
($oops who "~s is not a textual output port" x))
x)))
(define-who trace-print
($make-thread-parameter
pretty-print
(lambda (x)
(unless (procedure? x)
($oops who "~s is not a procedure" x))
x)))
(define suppress-greeting (make-parameter #f (lambda (x) (and x #t))))
(define-who eval-syntax-expanders-when
($make-thread-parameter '(compile load eval)
(lambda (x)
(unless (let check ([x x] [l '(compile load eval visit revisit)])
(or (null? x)
(and (pair? x)
(memq (car x) l)
(check (cdr x) (remq (car x) l)))))
($oops who "invalid eval-when list ~s" x))
x)))
(define-who collect-maximum-generation
(let ([$get-maximum-generation (foreign-procedure "(cs)maxgen" () fixnum)]
[$set-maximum-generation! (foreign-procedure "(cs)set_maxgen" (fixnum) void)])
(case-lambda
[() ($get-maximum-generation)]
[(g)
(unless (and (fixnum? g) (fx>= g 0)) ($oops who "invalid generation ~s" g))
(when (fx= g 0) ($oops who "new maximum generation must be at least 1"))
(let ([limit (fx- (constant static-generation) 1)])
(when (fx> g limit) ($oops who "~s exceeds maximum supported value ~s" g limit)))
($set-maximum-generation! g)])))
(define-who release-minimum-generation
(let ([$get-release-minimum-generation (foreign-procedure "(cs)minfreegen" () fixnum)]
[$set-release-minimum-generation! (foreign-procedure "(cs)set_minfreegen" (fixnum) void)])
(case-lambda
[() ($get-release-minimum-generation)]
[(g)
(unless (and (fixnum? g) (fx>= g 0)) ($oops who "invalid generation ~s" g))
(unless (fx<= g (collect-maximum-generation))
($oops who "new release minimum generation must not be be greater than collect-maximum-generation"))
($set-release-minimum-generation! g)])))
(define-who enable-object-counts
(let ([$get-enable-object-counts (foreign-procedure "(cs)enable_object_counts" () boolean)]
[$set-enable-object-counts (foreign-procedure "(cs)set_enable_object_counts" (boolean) void)])
(case-lambda
[() ($get-enable-object-counts)]
[(b) ($set-enable-object-counts b)])))
(define-who collect-trip-bytes
(make-parameter
(constant default-collect-trip-bytes)
(lambda (x)
(unless (and (fixnum? x) (fx< 0 x))
($oops who "~s is not a positive fixnum" x))
($set-collect-trip-bytes x)
x)))
(define-who heap-reserve-ratio
(case-lambda
[() $heap-reserve-ratio]
[(x) (unless (number? x)
($oops who "~s is not a number" x))
(let ([y (inexact x)])
(unless (and (flonum? y) (>= y 0))
($oops who "invalid heap reserve ratio ~s" x))
(set! $heap-reserve-ratio y))]))
(define-who $assembly-output
($make-thread-parameter #f
(lambda (x)
(cond
[(or (not x) (and (output-port? x) (textual-port? x))) x]
[(eq? x #t) (current-output-port)]
[else ($oops who "~s is not a textual output port or #f" x)]))))
(define-who expand-output
($make-thread-parameter #f
(lambda (x)
(unless (or (not x) (and (output-port? x) (textual-port? x)))
($oops who "~s is not a textual output port or #f" x))
x)))
(define-who expand/optimize-output
($make-thread-parameter #f
(lambda (x)
(unless (or (not x) (and (output-port? x) (textual-port? x)))
($oops who "~s is not a textual output port or #f" x))
x)))
(define generate-wpo-files
($make-thread-parameter #f
(lambda (x)
(and x #t))))
(define-who generate-covin-files
($make-thread-parameter #f
(lambda (x)
(and x #t))))
(define $enable-check-prelex-flags
($make-thread-parameter #f
(lambda (x)
(and x #t))))
(define-who run-cp0
($make-thread-parameter
(default-run-cp0)
(lambda (x)
(unless (procedure? x)
($oops who "~s is not a procedure" x))
x)))
(define fasl-compressed
($make-thread-parameter #t (lambda (x) (and x #t))))
(define compile-file-message
($make-thread-parameter #t (lambda (x) (and x #t))))
(define compile-imported-libraries
($make-thread-parameter #f (lambda (x) (and x #t))))
(define-who compile-library-handler
($make-thread-parameter
(lambda (ifn ofn) (compile-library ifn ofn))
(lambda (x)
(unless (procedure? x) ($oops who "~s is not a procedure" x))
x)))
(define-who compile-program-handler
($make-thread-parameter
(lambda (ifn ofn) (compile-program ifn ofn))
(lambda (x)
(unless (procedure? x) ($oops who "~s is not a procedure" x))
x)))
(define-who compress-format
(case-lambda
[()
(let ([x ($tc-field 'compress-format ($tc))])
(cond
[(eqv? x (constant COMPRESS-GZIP)) 'gzip]
[(eqv? x (constant COMPRESS-LZ4)) 'lz4]
[else ($oops who "unexpected $compress-format value ~s" x)]))]
[(x)
($tc-field 'compress-format ($tc)
(case x
[(gzip) (constant COMPRESS-GZIP)]
[(lz4) (constant COMPRESS-LZ4)]
[else ($oops who "~s is not a supported format" x)]))]))
(define-who compress-level
(case-lambda
[()
(let ([x ($tc-field 'compress-level ($tc))])
(cond
[(eqv? x (constant COMPRESS-MIN)) 'minimum]
[(eqv? x (constant COMPRESS-LOW)) 'low]
[(eqv? x (constant COMPRESS-MEDIUM)) 'medium]
[(eqv? x (constant COMPRESS-HIGH)) 'high]
[(eqv? x (constant COMPRESS-MAX)) 'maximum]
[else ($oops who "unexpected $compress-level value ~s" x)]))]
[(x)
($tc-field 'compress-level ($tc)
(case x
[(minimum) (constant COMPRESS-MIN)]
[(low) (constant COMPRESS-LOW)]
[(medium) (constant COMPRESS-MEDIUM)]
[(high) (constant COMPRESS-HIGH)]
[(maximum) (constant COMPRESS-MAX)]
[else ($oops who "~s is not a supported level" x)]))]))
(define-who debug-level
($make-thread-parameter
1
(lambda (x)
(unless (and (fixnum? x) (<= 0 x 3))
($oops who "invalid level ~s" x))
x)))
(define internal-defines-as-letrec*
($make-thread-parameter #t (lambda (x) (and x #t))))
(set! $scheme-version (string->symbol ($format-scheme-version (constant scheme-version))))
)
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