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Overview
| Comment: | Improved return value marshalling in CHICKEN callback wrapper |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
ab22068543c55fa2fb3f13ea5836d025 |
| User & Date: | murphy 2015-08-06 15:17:38 |
Context
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2015-08-07
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| 16:01 | Flush the main loop after widget destruction before clearing the registry check-in: d42d57606e user: murphy tags: trunk | |
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2015-08-06
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| 15:17 | Improved return value marshalling in CHICKEN callback wrapper check-in: ab22068543 user: murphy tags: trunk | |
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2015-08-05
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| 16:05 | Exception handlers and dynamic exit traps for CHICKEN callback trampolines check-in: 59297e2f3f user: murphy tags: trunk | |
Changes
Changes to chicken/iup-base.scm.
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(define frame-return/pointer! (foreign-lambda* void ([c-pointer frame] [c-pointer ret]) "va_return_ptr((va_alist)frame, void *, ret);")) (define frame-return/handle! (foreign-lambda* void ([c-pointer frame] [ihandle ret]) "va_return_ptr((va_alist)frame, Ihandle *, ret);")) (call-with-current-continuation (lambda (return) (let ([sig "i"] [ret 'continue]) (dynamic-wind void (lambda () (let* ([data (registry-ref (pointer->address cid))] [proc (cdr data)]) (set! sig (car data)) (case (string-ref sig 0) ................................................................................ [(#\f) (frame-arg/float! frame)] [(#\d) (frame-arg/double! frame)] [(#\s) (frame-arg/string! frame)] [(#\v) (frame-arg/pointer! frame)] [(#\h) (frame-arg/handle! frame)]))]) (handle-exceptions exn (print-error-message exn (current-error-port) "Error: in callback") (set! ret (apply proc args)))))) (lambda () (handle-exceptions exn (void) (case (string-ref sig 0) [(#\b) (frame-return/ubyte! frame ret)] [(#\i) (frame-return/status! frame ret)] [(#\f) (frame-return/float! frame ret)] [(#\d) (frame-return/double! frame ret)] [(#\v) (frame-return/pointer! frame ret)] [(#\h) (frame-return/handle! frame ret)])) (return (void)))))))) (define-values (callback-set! callback) (letrec ([signature/raw (foreign-lambda* c-string ([nonnull-ihandle handle] [iname/upcase name]) "C_return(iupClassCallbackGetFormat(handle->iclass, name));")] [set/pointer! |
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(define frame-return/pointer! (foreign-lambda* void ([c-pointer frame] [c-pointer ret]) "va_return_ptr((va_alist)frame, void *, ret);")) (define frame-return/handle! (foreign-lambda* void ([c-pointer frame] [ihandle ret]) "va_return_ptr((va_alist)frame, Ihandle *, ret);")) (call-with-current-continuation (lambda (return) (let ([sig "i"] [ret? #f]) (dynamic-wind void (lambda () (let* ([data (registry-ref (pointer->address cid))] [proc (cdr data)]) (set! sig (car data)) (case (string-ref sig 0) ................................................................................ [(#\f) (frame-arg/float! frame)] [(#\d) (frame-arg/double! frame)] [(#\s) (frame-arg/string! frame)] [(#\v) (frame-arg/pointer! frame)] [(#\h) (frame-arg/handle! frame)]))]) (handle-exceptions exn (print-error-message exn (current-error-port) "Error: in callback") (let ([ret (apply proc args)]) (case (string-ref sig 0) [(#\b) (frame-return/ubyte! frame ret)] [(#\i) (frame-return/status! frame ret)] [(#\f) (frame-return/float! frame ret)] [(#\d) (frame-return/double! frame ret)] [(#\v) (frame-return/pointer! frame ret)] [(#\h) (frame-return/handle! frame ret)]) (set! ret? #t)))))) (lambda () (unless ret? (case (string-ref sig 0) [(#\b) (frame-return/ubyte! frame 0)] [(#\i) (frame-return/status! frame 'continue)] [(#\f) (frame-return/float! frame 0.0)] [(#\d) (frame-return/double! frame 0.0)] [(#\v #\h) (frame-return/pointer! frame #f)])) (return (void)))))))) (define-values (callback-set! callback) (letrec ([signature/raw (foreign-lambda* c-string ([nonnull-ihandle handle] [iname/upcase name]) "C_return(iupClassCallbackGetFormat(handle->iclass, name));")] [set/pointer! |