1 ! Copyright (C) 2004, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: kernel kernel.private namespaces make io io.encodings sequences
4 math generic threads.private classes io.backend io.files
5 io.encodings.utf8 alien.strings continuations destructors byte-arrays
6 accessors combinators ;
9 TUPLE: c-stream handle disposed ;
11 M: c-stream dispose* handle>> fclose ;
13 M: c-stream stream-seek
15 { seek-absolute [ 0 ] }
16 { seek-relative [ 1 ] }
21 TUPLE: c-writer < c-stream ;
23 : <c-writer> ( handle -- stream ) f c-writer boa ;
25 M: c-writer stream-element-type drop +byte+ ;
27 M: c-writer stream-write1 dup check-disposed handle>> fputc ;
29 M: c-writer stream-write dup check-disposed handle>> fwrite ;
31 M: c-writer stream-flush dup check-disposed handle>> fflush ;
33 TUPLE: c-reader < c-stream ;
35 : <c-reader> ( handle -- stream ) f c-reader boa ;
37 M: c-reader stream-element-type drop +byte+ ;
39 M: c-reader stream-read dup check-disposed handle>> fread ;
41 M: c-reader stream-read-partial stream-read ;
43 M: c-reader stream-read1 dup check-disposed handle>> fgetc ;
45 : read-until-loop ( stream delim -- ch )
46 over stream-read1 dup [
47 dup pick memq? [ 2nip ] [ , read-until-loop ] if
52 M: c-reader stream-read-until
54 [ swap read-until-loop ] B{ } make swap
55 over empty? over not and [ 2drop f f ] when ;
57 M: c-io-backend init-io ;
59 : stdin-handle ( -- alien ) 11 getenv ;
60 : stdout-handle ( -- alien ) 12 getenv ;
61 : stderr-handle ( -- alien ) 61 getenv ;
64 stdin-handle <c-reader>
65 stdout-handle <c-writer>
66 stderr-handle <c-writer>
69 M: c-io-backend init-stdio init-c-stdio ;
71 M: c-io-backend io-multiplex 60 60 * 1000 * 1000 * or (sleep) ;
73 : fopen ( path mode -- alien )
74 [ utf8 string>alien ] bi@ (fopen) ;
76 M: c-io-backend (file-reader)
77 "rb" fopen <c-reader> ;
79 M: c-io-backend (file-writer)
80 "wb" fopen <c-writer> ;
82 M: c-io-backend (file-appender)
83 "ab" fopen <c-writer> ;
86 #! A word which directly calls primitives. It is used to
87 #! print stuff from contexts where the I/O system would
88 #! otherwise not work (tools.deploy.shaker, the I/O
89 #! multiplexer thread).
90 "\n" append >byte-array
92 stdout-handle fflush ;