1 ! Copyright (C) 2004, 2005 Mackenzie Straight
2 ! Copyright (C) 2007, 2010 Slava Pestov
3 ! Copyright (C) 2007, 2008 Doug Coleman
4 ! See http://factorcode.org/license.txt for BSD license.
5 USING: accessors alien alien.c-types alien.destructors alien.syntax assocs
6 combinators continuations destructors destructors.private kernel math
7 namespaces prettyprint sequences sets summary system vocabs ;
10 << "libc." os unparse append require >>
17 FUNCTION-ALIAS: set-errno
18 void set_err_no ( int err-no ) ;
23 : preserve-errno ( quot -- )
24 errno [ call ] dip set-errno ; inline
28 FUNCTION: c-string strerror ( int errno ) ;
30 ERROR: libc-error errno message ;
32 : (io-error) ( -- * ) errno dup strerror libc-error ;
34 : io-error ( n -- ) 0 < [ (io-error) ] when ;
36 FUNCTION-ALIAS: (malloc)
37 void* malloc ( size_t size ) ;
39 FUNCTION-ALIAS: (calloc)
40 void* calloc ( size_t count, size_t size ) ;
42 FUNCTION-ALIAS: (free)
43 void free ( void* alien ) ;
45 FUNCTION-ALIAS: (realloc)
46 void* realloc ( void* alien, size_t size ) ;
50 ! We stick malloc-ptr instances in the global disposables set
51 TUPLE: malloc-ptr value continuation ;
53 M: malloc-ptr hashcode* value>> hashcode* ;
56 over malloc-ptr? [ [ value>> ] same? ] [ 2drop f ] if ;
58 : <malloc-ptr> ( value -- malloc-ptr )
59 malloc-ptr new swap >>value ;
66 drop "Memory allocation failed" ;
68 : check-ptr ( c-ptr -- c-ptr )
71 ERROR: realloc-error ptr size ;
73 M: realloc-error summary
74 drop "Memory reallocation failed" ;
78 : add-malloc ( alien -- alien )
79 dup <malloc-ptr> register-disposable ;
81 : delete-malloc ( alien -- )
82 [ <malloc-ptr> unregister-disposable ] when* ;
84 : malloc-exists? ( alien -- ? )
85 <malloc-ptr> disposables get in? ;
89 : malloc ( size -- alien )
90 (malloc) check-ptr add-malloc ;
92 : calloc ( count size -- alien )
93 (calloc) check-ptr add-malloc ;
95 : realloc ( alien size -- newalien )
97 over malloc-exists? [ realloc-error ] unless
98 [ drop ] [ (realloc) check-ptr ] 2bi
99 [ delete-malloc ] [ add-malloc ] bi* ;
102 >c-ptr [ delete-malloc ] [ (free) ] bi ;
104 FUNCTION: void memset ( void* buf, int char, size_t size ) ;
106 FUNCTION: void memcpy ( void* dst, void* src, ulong size ) ;
108 FUNCTION: int memcmp ( void* a, void* b, ulong size ) ;
110 : memory= ( a b size -- ? ) memcmp 0 = ; inline
112 FUNCTION: size_t strlen ( c-string alien ) ;
114 FUNCTION: int system ( c-string command ) ;