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NOTE: Let Racket GC manage your FFI object

 2 years ago
source link: https://dannypsnl.github.io/blog/2022/01/22/cs/racket-ffi-gc/
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All you need are deallocator and allocator from .NOTE: Let Racket GC manage your FFI object

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Programming Language Theory • System Programming

NOTE: Let Racket GC manage your FFI object

All you need are deallocator and allocator from ffi/unsafe/alloc.

(require ffi/unsafe
         ffi/unsafe/define
         ffi/unsafe/alloc)

(define-ffi-definer define-xxx
  (ffi-lib "<path to your libxxx>" '(#f)))

(define-xxx free-yyy (_fun _YyyRef -> _void)
  #:c-id yyy_delete
  #:wrap (deallocator))
(define-xxx make-yyy (_fun -> _YyyRef)
  #:c-id yyy_new
  #:wrap (allocator free-yyy))

author: Lîm Tsú-thuàn/林子篆/Danny

category:cs

tag:noteffigcracket

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