Utilities for FFI Programming
usage
(import :std/foreign)
begin-ffi
usage
(begin-ffi (id ...) body ...)
; expands to
(extern id ...)
(begin-foreign
(namespace (<module-namespace> id ...))
prelude-macros ...
prelude-decls ...
body ...
prelude-defs ...
The following prelude macros are available within the body:
(define-c-lambda id args ret [name/code])
(define-const id)
(define-const* id)
(define-guard guard defn)
The following declarations are included before the body:
#include <stdlib.h>
#define U8_DATA(u8vector) ...
#define U8_LEN(u8vector) ...
static ___SCMOBJ ffi_free (void *ptr);
The following definitions are included after the body:
#ifndef ___HAVE_FFI_FREE
#define ___HAVE_FFI_FREE
___SCMOBJ ffi_free (void *ptr) { ...}
#endif