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
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> "int" heap-size setsockopt io-error ;
22 M: unix addrinfo-error ( n -- )
23 [ gai_strerror throw ] unless-zero ;
25 ! Client sockets - TCP and Unix domain
26 M: object (get-local-address) ( handle remote -- sockaddr )
27 [ handle-fd ] dip empty-sockaddr/size <int>
28 [ getsockname io-error ] 2keep drop ;
30 M: object (get-remote-address) ( handle local -- sockaddr )
31 [ handle-fd ] dip empty-sockaddr/size <int>
32 [ getpeername io-error ] 2keep drop ;
34 : init-client-socket ( fd -- )
35 SOL_SOCKET SO_OOBINLINE set-socket-option ;
37 : wait-to-connect ( port -- )
38 dup handle>> handle-fd f 0 write
41 { [ errno EAGAIN = ] [ dup +output+ wait-for-port wait-to-connect ] }
42 { [ errno EINTR = ] [ wait-to-connect ] }
46 M: object establish-connection ( client-out remote -- )
47 [ drop ] [ [ handle>> handle-fd ] [ make-sockaddr/size ] bi* connect ] 2bi
50 { [ errno EINPROGRESS = ] [
51 [ +output+ wait-for-port ] [ wait-to-connect ] bi
56 M: object ((client)) ( addrspec -- fd )
57 protocol-family SOCK_STREAM socket-fd dup init-client-socket ;
59 ! Server sockets - TCP and Unix domain
60 : init-server-socket ( fd -- )
61 SOL_SOCKET SO_REUSEADDR set-socket-option ;
63 : server-socket-fd ( addrspec type -- fd )
64 [ dup protocol-family ] dip socket-fd
65 [ init-server-socket ] keep
66 [ handle-fd swap make-sockaddr/size bind io-error ] keep ;
68 M: object (server) ( addrspec -- handle )
70 SOCK_STREAM server-socket-fd
71 dup handle-fd 128 listen io-error
74 : do-accept ( server addrspec -- fd sockaddr )
75 [ handle>> handle-fd ] [ empty-sockaddr/size <int> ] bi*
76 [ accept ] 2keep drop ; inline
78 M: object (accept) ( server addrspec -- fd sockaddr )
81 { [ over 0 >= ] [ [ 2nip <fd> init-fd ] dip ] }
82 { [ errno EINTR = ] [ 2drop (accept) ] }
83 { [ errno EAGAIN = ] [
85 [ drop +input+ wait-for-port ]
92 ! Datagram sockets - UDP and Unix domain
94 [ SOCK_DGRAM server-socket-fd ] with-destructors ;
96 SYMBOL: receive-buffer
98 CONSTANT: packet-size 65536
100 [ packet-size malloc receive-buffer set-global ] "io.sockets.unix" add-init-hook
102 :: do-receive ( port -- packet sockaddr )
103 port addr>> empty-sockaddr/size [| sockaddr len |
104 port handle>> handle-fd ! s
105 receive-buffer get-global ! buf
111 receive-buffer get-global swap memory>byte-array sockaddr
117 M: unix (receive) ( datagram -- packet sockaddr )
118 dup do-receive dup [ [ drop ] 2dip ] [
119 2drop [ +input+ wait-for-port ] [ (receive) ] bi
122 :: do-send ( packet sockaddr len socket datagram -- )
123 socket handle-fd packet dup length 0 sockaddr len sendto
126 packet sockaddr len socket datagram do-send
129 datagram +output+ wait-for-port
130 packet sockaddr len socket datagram do-send
137 M: unix (send) ( packet addrspec datagram -- )
138 [ make-sockaddr/size ] [ [ handle>> ] keep ] bi* do-send ;
140 ! Unix domain sockets
141 M: local protocol-family drop PF_UNIX ;
143 M: local sockaddr-size drop sockaddr-un heap-size ;
145 M: local empty-sockaddr drop sockaddr-un <struct> ;
147 M: local make-sockaddr
148 path>> (normalize-path)
149 dup length 1 + max-un-path > [ "Path too long" throw ] when
152 swap utf8 string>alien >>path ;
154 M: local parse-sockaddr
156 path>> utf8 alien>string <local> ;