racket/collects/drscheme/drscheme.ss

68 lines
2.9 KiB
Scheme

#lang scheme/base
(require scheme/gui/base "private/key.ss")
(define debugging? (getenv "PLTDRDEBUG"))
(define profiling? (getenv "PLTDRPROFILE"))
(define install-cm? (and (not debugging?)
(getenv "PLTDRCM")))
(define cm-trace? (or (equal? (getenv "PLTDRCM") "trace")
(equal? (getenv "PLTDRDEBUG") "trace")))
;; the flush is only here to ensure that the output is
;; appears when running in cygwin under windows.
(define (flprintf fmt . args)
(apply printf fmt args)
(flush-output))
(when debugging?
(flprintf "PLTDRDEBUG: installing CM to load/create errortrace zos\n")
(let-values ([(zo-compile
make-compilation-manager-load/use-compiled-handler
manager-trace-handler)
(parameterize ([current-namespace (make-base-empty-namespace)]
[use-compiled-file-paths '()])
(values
(dynamic-require 'errortrace/zo-compile 'zo-compile)
(dynamic-require 'compiler/cm 'make-compilation-manager-load/use-compiled-handler)
(dynamic-require 'compiler/cm 'manager-trace-handler)))])
(current-compile zo-compile)
(use-compiled-file-paths (list (build-path "compiled" "errortrace")))
(current-load/use-compiled (make-compilation-manager-load/use-compiled-handler))
(error-display-handler (dynamic-require 'errortrace/errortrace-lib
'errortrace-error-display-handler))
(when cm-trace?
(flprintf "PLTDRDEBUG: enabling CM tracing\n")
(manager-trace-handler
(λ (x) (display "1: ") (display x) (newline) (flush-output))))))
(when install-cm?
(flprintf "PLTDRCM: installing compilation manager\n")
(let-values ([(make-compilation-manager-load/use-compiled-handler
manager-trace-handler)
(parameterize ([current-namespace (make-base-empty-namespace)])
(values
(dynamic-require 'compiler/cm 'make-compilation-manager-load/use-compiled-handler)
(dynamic-require 'compiler/cm 'manager-trace-handler)))])
(current-load/use-compiled (make-compilation-manager-load/use-compiled-handler))
(when cm-trace?
(flprintf "PLTDRCM: enabling CM tracing\n")
(manager-trace-handler
(λ (x) (display "1: ") (display x) (newline) (flush-output))))))
(when profiling?
(flprintf "PLTDRPROFILE: installing profiler\n")
;; NOTE that this might not always work.
;; it creates a new custodian and installs it, but the
;; original eventspace was created on the original custodian
;; and this code does not create a new eventspace.
(let ([orig-cust (current-custodian)]
[orig-eventspace (current-eventspace)]
[new-cust (make-custodian)])
(current-custodian new-cust)
((dynamic-require 'drscheme/private/profile-drs 'start-profile) orig-cust)))
(dynamic-require 'drscheme/private/drscheme-normal #f)