1 ! Copyright (C) 2004, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: alien alien.strings kernel kernel.private namespaces make
4 io io.encodings sequences math generic threads.private classes
5 io.backend io.files io.encodings.utf8 continuations destructors
6 byte-arrays accessors combinators ;
9 TUPLE: c-stream < disposable handle ;
11 : new-c-stream ( handle class -- c-stream )
12 new-disposable swap >>handle ; inline
14 M: c-stream dispose* handle>> fclose ;
16 M: c-stream stream-tell handle>> ftell ;
18 M: c-stream stream-seek
21 { seek-absolute [ 0 ] }
22 { seek-relative [ 1 ] }
26 ] [ handle>> ] bi* fseek ;
28 TUPLE: c-writer < c-stream ;
30 : <c-writer> ( handle -- stream ) c-writer new-c-stream ;
32 M: c-writer stream-element-type drop +byte+ ;
34 M: c-writer stream-write1 dup check-disposed handle>> fputc ;
36 M: c-writer stream-write
38 [ [ >c-ptr ] [ byte-length ] bi ] [ handle>> ] bi* fwrite ;
40 M: c-writer stream-flush dup check-disposed handle>> fflush ;
42 TUPLE: c-reader < c-stream ;
44 : <c-reader> ( handle -- stream ) c-reader new-c-stream ;
46 M: c-reader stream-element-type drop +byte+ ;
48 M: c-reader stream-read dup check-disposed handle>> fread ;
50 M: c-reader stream-peek [ stream-read ] with-input-rewind ;
52 M: c-reader stream-read-partial stream-read ;
54 M: c-reader stream-read1 dup check-disposed handle>> fgetc ;
56 M: c-reader stream-peek1 [ stream-read1 ] with-input-rewind ;
58 : read-until-loop ( stream delim -- ch )
59 over stream-read1 dup [
60 dup pick member-eq? [ 2nip ] [ , read-until-loop ] if
65 M: c-reader stream-read-until
67 [ swap read-until-loop ] B{ } make swap
68 over empty? over not and [ 2drop f f ] when ;
70 M: c-io-backend init-io ;
72 : stdin-handle ( -- alien ) 11 special-object ;
73 : stdout-handle ( -- alien ) 12 special-object ;
74 : stderr-handle ( -- alien ) 61 special-object ;
77 stdin-handle <c-reader>
78 stdout-handle <c-writer>
79 stderr-handle <c-writer>
82 M: c-io-backend init-stdio init-c-stdio ;
84 M: c-io-backend io-multiplex
85 dup 0 = [ drop ] [ 60 60 * 1000 * 1000 * or (sleep) ] if ;
87 : fopen ( path mode -- alien )
88 [ utf8 string>alien ] bi@ (fopen) ;
90 M: c-io-backend (file-reader)
91 "rb" fopen <c-reader> ;
93 M: c-io-backend (file-writer)
94 "wb" fopen <c-writer> ;
96 M: c-io-backend (file-appender)
97 "ab" fopen <c-writer> ;
100 #! A word which directly calls primitives. It is used to
101 #! print stuff from contexts where the I/O system would
102 #! otherwise not work (tools.deploy.shaker, the I/O
103 #! multiplexer thread).
104 "\n" append >byte-array dup length
106 stdout-handle fflush ;