1 ! Copyright (C) 2004, 2008 Slava Pestov, Ivan Tikhonov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: alien alien.c-types alien.strings generic kernel math
4 threads sequences byte-arrays io.binary io.backend.unix
5 io.streams.duplex io.backend io.pathnames io.sockets.private
6 io.files.private io.encodings.utf8 math.parser continuations
7 libc combinators system accessors destructors unix locals init
8 classes.struct alien.data ;
10 EXCLUDE: namespaces => bind ;
11 EXCLUDE: io => read write ;
12 EXCLUDE: io.sockets => accept ;
16 : socket-fd ( domain type -- fd )
17 0 socket dup io-error <fd> init-fd |dispose ;
19 : set-socket-option ( fd level opt -- )
20 [ handle-fd ] 2dip 1 <int> dup byte-length setsockopt io-error ;
22 M: unix addrinfo-error ( n -- )
23 [ gai_strerror throw ] unless-zero ;
25 M: unix sockaddr-of-family ( alien af -- addrspec )
27 { AF_INET [ sockaddr-in memory>struct ] }
28 { AF_INET6 [ sockaddr-in6 memory>struct ] }
29 { AF_UNIX [ sockaddr-un memory>struct ] }
33 M: unix addrspec-of-family ( af -- addrspec )
35 { AF_INET [ T{ inet4 } ] }
36 { AF_INET6 [ T{ inet6 } ] }
37 { AF_UNIX [ T{ local } ] }
41 ! Client sockets - TCP and Unix domain
42 M: object (get-local-address) ( handle remote -- sockaddr )
43 [ handle-fd ] dip empty-sockaddr/size <int>
44 [ getsockname io-error ] 2keep drop ;
46 M: object (get-remote-address) ( handle local -- sockaddr )
47 [ handle-fd ] dip empty-sockaddr/size <int>
48 [ getpeername io-error ] 2keep drop ;
50 : init-client-socket ( fd -- )
51 SOL_SOCKET SO_OOBINLINE set-socket-option ;
53 : wait-to-connect ( port -- )
54 dup handle>> handle-fd f 0 write
57 { [ errno EAGAIN = ] [ dup +output+ wait-for-port wait-to-connect ] }
58 { [ errno EINTR = ] [ wait-to-connect ] }
62 M:: object establish-connection ( client-out remote -- )
66 [ handle>> handle-fd ] [ make-sockaddr/size ] bi* connect
70 { [ errno EINTR = ] [ drop client-out remote establish-connection ] }
71 { [ errno EINPROGRESS = ] [
72 [ +output+ wait-for-port ] [ wait-to-connect ] bi
77 : ?bind-client ( socket -- )
78 bind-local-address get [
79 [ fd>> ] dip make-sockaddr/size
80 [ bind ] unix-system-call io-error
85 M: object ((client)) ( addrspec -- fd )
86 protocol-family SOCK_STREAM socket-fd
87 [ init-client-socket ] [ ?bind-client ] [ ] tri ;
89 ! Server sockets - TCP and Unix domain
90 : init-server-socket ( fd -- )
91 SOL_SOCKET SO_REUSEADDR set-socket-option ;
93 : server-socket-fd ( addrspec type -- fd )
94 [ dup protocol-family ] dip socket-fd
95 [ init-server-socket ] keep
96 [ handle-fd swap make-sockaddr/size [ bind ] unix-system-call io-error ] keep ;
98 M: object (server) ( addrspec -- handle )
100 SOCK_STREAM server-socket-fd
101 dup handle-fd 128 listen io-error
104 : do-accept ( server addrspec -- fd sockaddr )
105 [ handle>> handle-fd ] [ empty-sockaddr/size <int> ] bi*
106 [ accept ] 2keep drop ; inline
108 M: object (accept) ( server addrspec -- fd sockaddr )
111 { [ over 0 >= ] [ [ 2nip <fd> init-fd ] dip ] }
112 { [ errno EINTR = ] [ 2drop (accept) ] }
113 { [ errno EAGAIN = ] [
115 [ drop +input+ wait-for-port ]
122 ! Datagram sockets - UDP and Unix domain
124 [ SOCK_DGRAM server-socket-fd ] with-destructors ;
126 SYMBOL: receive-buffer
128 CONSTANT: packet-size 65536
130 [ packet-size malloc &free receive-buffer set-global ] "io.sockets.unix" add-startup-hook
132 :: do-receive ( port -- packet sockaddr )
133 port addr>> empty-sockaddr/size :> ( sockaddr len )
134 port handle>> handle-fd ! s
135 receive-buffer get-global ! buf
141 [ receive-buffer get-global swap memory>byte-array sockaddr ]
145 M: unix (receive) ( datagram -- packet sockaddr )
146 dup do-receive dup [ [ drop ] 2dip ] [
147 2drop [ +input+ wait-for-port ] [ (receive) ] bi
150 :: do-send ( packet sockaddr len socket datagram -- )
151 socket handle-fd packet dup length 0 sockaddr len sendto
154 packet sockaddr len socket datagram do-send
157 datagram +output+ wait-for-port
158 packet sockaddr len socket datagram do-send
165 M: unix (send) ( packet addrspec datagram -- )
166 [ make-sockaddr/size ] [ [ handle>> ] keep ] bi* do-send ;
168 ! Unix domain sockets
169 M: local protocol-family drop PF_UNIX ;
171 M: local sockaddr-size drop sockaddr-un heap-size ;
173 M: local empty-sockaddr drop sockaddr-un <struct> ;
175 M: local make-sockaddr
177 dup length 1 + max-un-path > [ "Path too long" throw ] when
180 swap utf8 string>alien >>path ;
182 M: local parse-sockaddr
184 path>> utf8 alien>string <local> ;