| c-library libffi |
c-library libffi |
| s" ffi" add-lib |
s" ffi" add-lib |
| |
|
| |
\ The ffi.h of XCode needs the following line, and it should not hurt elsewhere |
| |
\c #define MACOSX |
| include-ffi.h-string save-c-prefix-line \ #include <ffi.h> |
include-ffi.h-string save-c-prefix-line \ #include <ffi.h> |
| \c extern Cell *gforth_RP; |
\c #include <stdio.h> |
| \c extern unsigned char *gforth_LP; |
|
| \c static void **gforth_clist; |
\c static void **gforth_clist; |
| \c static void *gforth_ritem; |
\c static void *gforth_ritem; |
| |
\c #ifndef HAS_BACKLINK |
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\c static void **saved_gforth_pointers; |
| |
\c #endif |
| \c typedef void *Label; |
\c typedef void *Label; |
| \c typedef Label *Xt; |
\c typedef Label *Xt; |
| \c Label *gforth_engine(Xt *ip, Cell *sp, Cell *rp0, Float *fp, unsigned char *lp); |
|
| \c static void gforth_callback_ffi(ffi_cif * cif, void * resp, void ** args, void * ip) |
\c static void gforth_callback_ffi(ffi_cif * cif, void * resp, void ** args, void * ip) |
| \c { |
\c { |
| |
\c #ifndef HAS_BACKLINK |
| |
\c void **gforth_pointers = saved_gforth_pointers; |
| |
\c #endif |
| |
\c { |
| \c Cell *rp1 = gforth_RP; |
\c Cell *rp1 = gforth_RP; |
| \c Cell *sp = gforth_SP; |
\c Cell *sp = gforth_SP; |
| \c Float *fp = gforth_FP; |
\c Float *fp = gforth_FP; |
| \c gforth_clist = args; |
\c gforth_clist = args; |
| \c gforth_ritem = resp; |
\c gforth_ritem = resp; |
| \c |
\c |
| \c gforth_engine((Xt *)ip, sp, rp1, fp, lp); |
\c gforth_engine((Xt *)ip, sp, rp1, fp, lp, gforth_UP); |
| \c |
\c |
| \c /* restore global variables */ |
\c /* restore global variables */ |
| \c gforth_RP = rp1; |
\c gforth_RP = rp1; |
| \c gforth_clist = clist; |
\c gforth_clist = clist; |
| \c gforth_ritem = ritem; |
\c gforth_ritem = ritem; |
| \c } |
\c } |
| |
\c } |
| |
|
| \c static void* ffi_types[] = |
\c static void* ffi_types[] = |
| \c { &ffi_type_void, |
\c { &ffi_type_void, |
| \c (ffi_type *)rtype, (ffi_type **)atypes) |
\c (ffi_type *)rtype, (ffi_type **)atypes) |
| c-function ffi-prep-cif ffi_prep_cif1 a n a a -- n |
c-function ffi-prep-cif ffi_prep_cif1 a n a a -- n |
| |
|
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\c #ifdef HAS_BACKLINK |
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\c #define ffi_call1(a_avalues, a_rvalue ,a_ip ,a_cif) \ |
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\c ffi_call((ffi_cif *)a_cif, (void(*)())a_ip, \ |
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\c (void *)a_rvalue, (void **)a_avalues) |
| |
\c #else |
| \c #define ffi_call1(a_avalues, a_rvalue ,a_ip ,a_cif) \ |
\c #define ffi_call1(a_avalues, a_rvalue ,a_ip ,a_cif) \ |
| |
\c (saved_gforth_pointers = gforth_pointers), \ |
| \c ffi_call((ffi_cif *)a_cif, (void(*)())a_ip, \ |
\c ffi_call((ffi_cif *)a_cif, (void(*)())a_ip, \ |
| \c (void *)a_rvalue, (void **)a_avalues) |
\c (void *)a_rvalue, (void **)a_avalues) |
| |
\c #endif |
| c-function ffi-call ffi_call1 a a a a -- void |
c-function ffi-call ffi_call1 a a a a -- void |
| |
|
| \c #define ffi_prep_closure1(a_ip, a_cif, a_closure) \ |
\c #define ffi_prep_closure1(a_ip, a_cif, a_closure) \ |
| here thisproc @ 2 cells + ! parse-name s, |
here thisproc @ 2 cells + ! parse-name s, |
| thislib @ thisproc @ @proc ; |
thislib @ thisproc @ @proc ; |
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|
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: func@ >body cell+ @ ; |
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: func' ' func@ ; |
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: [func'] postpone ['] postpone func@ ; immediate restrict |
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|
| \ stuff for libffi |
\ stuff for libffi |
| |
|
| \ libffi uses a parameter array for the input |
\ libffi uses a parameter array for the input |
| : sf>x ( -- r ) retbuf sf@ ; |
: sf>x ( -- r ) retbuf sf@ ; |
| : df>x ( -- r ) retbuf df@ ; |
: df>x ( -- r ) retbuf df@ ; |
| |
|
| wordlist constant cifs |
table constant cifs |
| |
|
| Variable cifbuf $40 allot \ maximum: 64 parameters |
Variable cifbuf $40 allot \ maximum: 64 parameters |
| : cifreset cifbuf cell+ cifbuf ! ; |
: cifreset cifbuf cell+ cifbuf ! ; |
