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ktanaka |
1.1 |
(defconst SYS_select 93) |
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(defconst SYS_socket 97) |
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(defconst SYS_accept 99) |
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(defconst SYS_bind 104) |
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(defconst SYS_listen 106) |
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(defconst SYS_shutdown 134) |
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(defconst SOCK_STREAM 1) |
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(defconst AF_INET 2) |
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(defconst INADDR_ANY (make-string 4)) |
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(defun select (nfds rmask) |
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(syscall SYS_select nfds rmask 0 0 0)) |
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(defun socket () |
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(syscall SYS_socket AF_INET SOCK_STREAM 0)) |
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(defun accept (sock addr addrlen) |
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(syscall SYS_accept sock addr addrlen)) |
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; for SPARC only |
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(defun htons (i) i) |
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(defun make-sockaddr (family port addr) |
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(let ((ret (make-string 16)) |
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(newport (htons port))) |
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(sset ret 0 (logand 255 (logshift family -8))) |
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(sset ret 1 (logand 255 family)) |
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(sset ret 2 (logand 255 (logshift newport -8))) |
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(sset ret 3 (logand 255 newport)) |
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(string-amend ret addr 4))) |
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(defun bind (sock family port addr) |
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(syscall SYS_bind sock (make-sockaddr family port addr) 16)) |
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(defun listen (sock count) |
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(syscall SYS_listen sock count)) |
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; |
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(defun shutdown (sock how) |
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(syscall SYS_shutdown sock how)) |
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; |
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(defun selbitref (bitarray index) |
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(bref bitarray (- 31 index))) |
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; |
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(defun selbitset (bitarray index value) |
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(bset bitarray (- 31 index) value)) |
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; |
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(defun test (port) |
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(lets ((sock (socket)) |
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(origmask (make-string 4)) |
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(rmask (make-string 4)) |
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(newfd)(fdlist)(s1)) |
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(bind sock AF_INET port INADDR_ANY) |
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(listen sock 5) |
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(selbitset origmask sock t) |
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(loop |
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(do ((l fdlist (cdr l))) |
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((atom l)) |
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(prind (list "stream-modes = " (stream-mode (cadar l))))) |
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(loop |
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(string-amend rmask origmask) |
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(and (<= 0 (select 32 rmask))(exit))) |
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(do ((l fdlist (cdr l))) |
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((atom l)) |
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(prind (list "stream-modes = " (stream-mode (cadar l))))) |
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(cond ((selbitref rmask sock) |
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(setq newfd (accept sock (make-sockaddr AF_INET 1211 INADDR_ANY) |
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(make-string 4))) |
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(push (list newfd |
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(appendopen (stream newfd))) fdlist) |
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(prind (list "newfd=" newfd)) |
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(selbitset origmask newfd t))) |
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(do ((l fdlist (cdr l))) |
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((atom l)) |
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(cond ((selbitref rmask (caar l)) |
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(prind (list "message from =" (caar l))) |
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(prind (list "stream-modes = " (stream-mode (cadar l)) |
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(stream-mode (cadar l)))) |
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(prind (list "openfiles " openfiles)) |
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(let ((curfd (caar l)) |
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(rstream (cadar l)) |
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(err:end-of-file (function (lambda (x (y)) |
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(setq fdlist (remq (assq curfd fdlist) fdlist)) |
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(selbitset origmask curfd nil) |
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(prind (list "shutdown " (shutdown curfd 2))) |
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; (close rstream) |
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; (close wstream) |
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(prind (list "openfiles " openfiles)) |
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(exit))))) |
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(setq r (readline (cadar l)))) |
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(prind (list "read =" r)) |
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; (setq r (eval r)) |
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(prind (list "write = " r)) |
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(print r (cadar l)))))))) |
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Annotation of /lisp/test/daemon.l
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