[gforth] / gforth / lib.fs  

gforth: gforth/lib.fs

Diff for /gforth/lib.fs between version 1.6 and 1.28

version 1.6, Sun Mar 9 15:16:50 2003 UTC version 1.28, Sat Jul 26 21:31:08 2008 UTC
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 \ lib.fs        shared library support package          11may97py  \ lib.fs        shared library support package          11may97py
   
 \ Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998,2000,2003,2005,2006,2007,2008 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
 \ Gforth is free software; you can redistribute it and/or  \ Gforth is free software; you can redistribute it and/or
 \ modify it under the terms of the GNU General Public License  \ modify it under the terms of the GNU General Public License
 \ as published by the Free Software Foundation; either version 2  \ as published by the Free Software Foundation, either version 3
 \ of the License, or (at your option) any later version.  \ of the License, or (at your option) any later version.
   
 \ This program is distributed in the hope that it will be useful,  \ This program is distributed in the hope that it will be useful,
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 \ GNU General Public License for more details.  \ GNU General Public License for more details.
   
 \ You should have received a copy of the GNU General Public License  \ You should have received a copy of the GNU General Public License
 \ along with this program; if not, write to the Free Software  \ along with this program. If not, see http://www.gnu.org/licenses/.
 \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.  
   
 Create icall-table  s" libavcall.so"     open-lib 0<>
     ] icall0 ;s icall1 ;s icall2 ;s icall3 ;s icall4 ;s icall5 ;s icall6 ;s  s" libcallback.so"   open-lib 0<> and [if]
       NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap      .( including fflib.fs [ffcall] )
       NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  icall20 ;s [      include fflib.fs
 Create fcall-table  [ELSE]
     ] fcall0 ;s fcall1 ;s fcall2 ;s fcall3 ;s fcall4 ;s fcall5 ;s fcall6 ;s      s" libffi.so" open-lib [if]
       NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap          .( including libffi.fs )
       NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  fcall20 ;s [          include libffi.fs
       [ELSE]
 Variable libs 0 libs !          .( Neither libffi nor ffcall are available ) cr
 \G links between libraries          abort
           .( Using oldlib.fs; incompatible with fflib.fs and libffi.fs) cr
 : @lib ( lib -- )          include oldlib.fs
     \G obtains library handle      [THEN]
     cell+ dup 2 cells + count open-lib  [THEN]
     dup 0= abort" Library not found" swap ! ;  
   
 : @proc ( lib addr -- )  
     \G obtains symbol address  
     cell+ tuck 2 cells + count rot cell+ @  
     lib-sym  dup 0= abort" Proc not found!" swap cell+ ! ;  
   
 : proc, ( pars type lib addr -- )  
     \G allocates and initializes proc stub  
     \G stub format:  
     \G    linked list in library  
     \G    address of proc  
     \G    offset in lcall1-table to call proc  
     \G    OS name of symbol as counted string  
     here 2dup swap 2 cells + dup @ A, !  
     2swap  1 and  IF  fcall-table  ELSE  icall-table  THEN  swap  
     cells 2* + , 0 , bl sword string, @proc ;  
   
 -1 Constant (addr)  
  0 Constant (int)  
  1 Constant (float)  
  2 Constant (void)  
  4 Constant (int...)  
  5 Constant (float...)  
  6 Constant (void...)  
   
 : proc:  ( pars type lib "name" "string" -- )  
     \G Creates a named proc stub  
     Create proc,  
 DOES> ( x1 .. xn -- r )  
     cell+ 2@ >r ;  
   
 : vaproc:  ( pars type lib "name" "string" -- )  
     \G Creates a named proc stub with variable arguments  
     Create proc,  
 DOES> ( x1 .. xn n -- r )  
     cell+ 2@ rot 2* cells + >r ;  
   
 : (>void)  >r ;  
   
 : vproc:  ( pars type lib "name" "string" -- )  
     \G Creates a named proc stub for void functions  
     Create proc,  
 DOES> ( x1 .. xn -- )  
     cell+ 2@ (>void) drop ;  
   
 : vvaproc:  ( pars type lib "name" "string" -- )  
     \G Creates a named proc stub with variable arguments, void return  
     Create proc,  
 DOES> ( x1 .. xn n -- )  
     cell+ 2@ rot 2* cells + (>void) drop ;  
   
 : label: ( type lib "name" "string" -- )  
     \G Creates a named label stub  
     -1 -rot Create proc,  
 DOES> ( -- addr )  
     [ 2 cells ] Literal + @ ;  
   
 : library ( "name" "file" -- )  
     \G loads library "file" and creates a proc defining word "name"  
     \G library format:  
     \G    linked list of libraries  
     \G    library handle  
     \G    linked list of library's procs  
     \G    OS name of library as counted string  
     Create  here libs @ A, dup libs !  
     0 , 0 A, bl sword string, @lib  
 DOES> ( pars/ type -- )  
     over -1 = IF  label:  
     ELSE  
         over 4 and IF  
             over 2 and IF  vvaproc:  ELSE  vaproc:  THEN  
         ELSE  
             over 2 and IF  vproc:  ELSE  proc:  THEN  
         THEN  
     THEN ;  
   
 : init-shared-libs ( -- )  
     defers 'cold  libs  
     0  libs  BEGIN  @ dup  WHILE  dup  REPEAT  drop  
     BEGIN  dup  WHILE  >r  
         r@ @lib  
         r@ 2 cells +  BEGIN  @ dup  WHILE  r@ over @proc  REPEAT  
         drop rdrop  
     REPEAT  drop ;  
   
 ' init-shared-libs IS 'cold  \ testing stuff
   
   [IFUNDEF] libc
       s" os-type" environment? [IF]
           2dup s" linux-gnu" str= [IF]  2drop
               cell 8 = [IF]
                   library libc /lib64/libc.so.6
               [ELSE]
                   library libc /lib/libc.so.6
               [THEN]
           [ELSE] 2dup s" cygwin" str= [IF]  2drop
                   library libc cygwin1.dll
               [ELSE]  2dup s" bsd" search nip nip [IF]  2drop
                       library libc libc.so
                   [ELSE]  2dup s" darwin" string-prefix? [IF]  2drop
                           library libc libc.dylib
                       [ELSE]  2drop \ or add your stuff here
                       [THEN]
                   [THEN]
               [THEN]
           [THEN]
       [THEN]
   [THEN]
   
   [ifdef] testing
   
   library libc libc.so.6
   
   libc sleep int (int) sleep
   libc open  ptr int int (int) open
   libc lseek int llong int (llong) lseek64
   libc read  int ptr int (int) read
   libc close int (int) close
   
   library libm libm.so.6
   
   libm fmodf sf sf (sf) fmodf
   libm fmod  df df (fp) fmod
   
   \ example for a windows callback
   
   callback wincall (int) int int int int callback;
   
   :noname ( a b c d -- e )  2drop 2drop 0 ; wincall do_timer
   
   \ test a callback
   
   callback 2:1 (int) int int callback;
   
   : cb-test ( a b -- c )
       cr ." Testing callback"
       cr ." arguments: " .s
       cr ." result " + .s cr ;
   ' cb-test 2:1 c_plus
   
   fptr 2:1call int int (int)
   
   : test  c_plus 2:1call ;
   
   \ 3 4 test
   
   \ bigFORTH legacy library test
   
   library libX11 libX11.so.6
   
   legacy on
   
   1 libX11 XOpenDisplay XOpenDisplay    ( name -- dpy )
   5 libX11 XInternAtoms XInternAtoms    ( atoms flag count names dpy -- status )
   
   legacy off
   
   [then]

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