(FILECREATED "30-Jun-87 08:58:22" {MCS:MCS:STANFORD}<LANE>COURIERSERVE.;7
changes to: (FNS \COURIER.SERVE \FIND.COURIER.PROGRAM \EXPEDITEDCOURIER.SERVE COURIER.REJECT
\COURIER.APPLY \COURIER.SETUP.REPLY \EXPEDITEDCOURIERSERVER \COURIERSERVER
\FIND.COURIER.PROCEDURE)
(VARS COURIERSERVECOMS)
(PROPS (COURIER.EXPEDITED.CALL ARGNAMES)
(COURIER.CALL ARGNAMES))
previous date: "13-Aug-86 11:46:50" {XDE:MCS:STANFORD}<LISPUSERS>KOTO>COURIERSERVE.;1)
(* Copyright (c) 1985, 1986, 1987 by Xerox Corporation & Stanford University. All rights reserved.)
(PRETTYCOMPRINT COURIERSERVECOMS)
(RPAQQ COURIERSERVECOMS ((FNS COURIER.START.SERVER COURIER.RETURN COURIER.ABORT COURIER.REJECT
CLOSE.BULK.DATA)
(FNS \COURIERSERVER \COURIER.SERVE \COURIER.APPLY \COURIER.SETUP.REPLY
\COURIER.FINISH.REPLY \FIND.COURIER.PROGRAM \FIND.COURIER.PROCEDURE)
(FNS \EXPEDITEDCOURIERSERVER \EXPEDITEDCOURIER.SERVE
\CREATE.EXPEDITED.STREAM)
(PROP ARGNAMES COURIER.CALL COURIER.EXPEDITED.CALL)
(CONSTANTS (\REJECT.NOSUCHPROGRAM 0)
(\REJECT.NOSUCHVERSION 1)
(\REJECT.NOSUCHPROCEDURE 2)
(\REJECT.INVALIDARGUMENTS 3)
(\REJECT.UNSPECIFIED 65535)
(\SINK.NULL 0)
(\SINK.IMMEDIATE 1)
(\SINK.PASSIVE 2)
(\SINK.ACTIVE 3))
(DECLARE: DONTCOPY (RECORDS COURIERSERVERFN XIPSOCKETPAIR))))
(DEFINEQ
(COURIER.START.SERVER
[LAMBDA NIL (* lmm " 7-Jan-86 16:08")
(if (NOT (FIND.PROCESS (QUOTE COURIER.LISTENER)))
then (if COURIERTRACEFLG
then (printout COURIERTRACEFILE T "Courier Server started"))
(SPP.OPEN NIL \NS.WKS.Courier NIL (QUOTE COURIER.LISTENER)
(QUOTE (SERVER.FUNCTION \COURIERSERVER OTHERXIPHANDLER
\EXPEDITEDCOURIERSERVER])
(COURIER.RETURN
[LAMBDA (COURIERSTREAM PROGRAM PROCEDURE RESULTLST) (* cdl "26-Nov-85 17:10")
(LET (RESULTS STREAM)
(SETQ RESULTS (with COURIERFN (\GET.COURIER.DEFINITION PROGRAM PROCEDURE (QUOTE
PROCEDURES)
(\GET.COURIERPROGRAM PROGRAM))
RESULTS))
(if (EQLENGTH RESULTLST (LENGTH RESULTS))
then (SETQ STREAM (\COURIER.SETUP.REPLY COURIERSTREAM \COURIERMSG.RETURN))
(if (\COURIER.EXPEDITED.ARGS STREAM PROGRAM RESULTLST RESULTS)
then (\COURIER.FINISH.REPLY COURIERSTREAM STREAM)
else (COURIER.REJECT COURIERSTREAM))
else (COURIER.REJECT COURIERSTREAM \REJECT.INVALIDARGUMENTS])
(COURIER.ABORT
[LAMBDA (COURIERSTREAM PROGRAM ERROR RESULTLST) (* cdl "26-Nov-85 17:20")
(LET [(STREAM (\COURIER.SETUP.REPLY COURIERSTREAM \COURIERMSG.ABORT))
(ERRORFORM (CDR (ASSOC ERROR (fetch (COURIERPGM ERRORS) of (\GET.COURIERPROGRAM
PROGRAM]
(PUTWORD STREAM (CAR ERRORFORM))
(if (\COURIER.EXPEDITED.ARGS STREAM PROGRAM RESULTLST (CADR ERRORFORM))
then (\COURIER.FINISH.REPLY COURIERSTREAM STREAM)
else (COURIER.REJECT \REJECT.INVALIDARGUMENTS])
(COURIER.REJECT
[LAMBDA (COURIERSTREAM ERROR RESULTLST) (* cdl "26-Jun-87 10:13")
(* DECLARATIONS: (RECORD VERSIONRANGE
(LOWEST . HIGHEST)))
(LET ((STREAM (\COURIER.SETUP.REPLY COURIERSTREAM \COURIERMSG.REJECT)))
[if (NOT (NUMBERP ERROR))
then (SETQ ERROR (SELECTQ ERROR
((NIL UNSPECIFIED)
\REJECT.UNSPECIFIED)
(NO.SUCH.PROGRAM \REJECT.NOSUCHPROGRAM)
(NO.SUCH.VERSION \REJECT.NOSUCHVERSION)
(NO.SUCH.PROCEDURE \REJECT.NOSUCHPROCEDURE)
(INVALID.ARGUMENTS \REJECT.INVALIDARGUMENTS)
(SHOULDNT]
(PUTWORD STREAM ERROR)
(SELECTC ERROR
(\REJECT.NOSUCHVERSION (with VERSIONRANGE RESULTLST (PUTWORD STREAM LOWEST)
(PUTWORD STREAM HIGHEST)))
NIL)
(\COURIER.FINISH.REPLY COURIERSTREAM STREAM])
(CLOSE.BULK.DATA
[LAMBDA (STREAM ABORTFLG) (* cdl "13-Nov-85 19:49")
(* Close a Bulk Data stream after the transfer has taken place. If a result function was specified in COURIER.CALL,
call it on the stream and the result or list of results.)
(PROG ((CON (GETSPPCON STREAM)))
(replace SPPATTENTIONFN of CON with NIL)
(if (NULL (fetch SPPSUBSTREAM of CON))
then (* This stream has already been closed.
We don't want to try to read the Courier results
twice)
(RETURN))
(if (WRITEABLE STREAM)
then (if ABORTFLG
then (SPP.SENDATTENTION STREAM 1)
else (SPP.SENDEOM STREAM))
elseif (NOT (\EOFP STREAM))
then (* Closing before all the data has been read -- abort
the transfer.)
(if (NOT ABORTFLG)
then (SETQ ABORTFLG T))
(\ABORT.BULK.DATA STREAM))
(SPP.DSTYPE STREAM \SPPDSTYPE.COURIER)
(with SPPCON CON (SETQ SPPINPKT NIL)
(SETQ SPPSUBSTREAM NIL)) (* This stream is closing; make sure there aren't any
dangling pointers into the middle of ether packets.)
(with STREAM STREAM (SETQ CBUFPTR NIL)
(SETQ CBUFSIZE 0))
(* The result of the Courier call may be an error which the user should see; however, we still need to clean up the
substream, so we wrap it in this RESETLST.)
(if ABORTFLG
then (replace ENDOFSTREAMOP of (fetch SPPINPUTSTREAM of CON)
with (FUNCTION \COURIER.EOF))
(replace ENDOFSTREAMOP of STREAM with (FUNCTION ERROR!])
)
(DEFINEQ
(\COURIERSERVER
[LAMBDA (STREAM) (* cdl "26-Jun-87 08:57")
(DECLARE (SPECVARS STREAM))
(RESETLST (RESETSAVE NIL (BQUOTE (CLOSEF? , STREAM)))
(PROG (LOW.VERSION HIGH.VERSION)
(SPP.DSTYPE STREAM \SPPDSTYPE.COURIER)
(with STREAM STREAM (SETQ ENDOFSTREAMOP (FUNCTION \COURIER.EOF)))
(PROCESS.NAME (THIS.PROCESS)
(PACK* (QUOTE COURIER)
(SPP.DESTADDRESS STREAM)))
(if COURIERTRACEFLG
then (printout COURIERTRACEFILE T "Server opened connection with" ,
(SPP.DESTADDRESS STREAM)))
(SETQ LOW.VERSION (GETWORD STREAM))
(SETQ HIGH.VERSION (GETWORD STREAM))
(PUTWORD STREAM COURIER.VERSION#)
(PUTWORD STREAM COURIER.VERSION#)
(SPP.FORCEOUTPUT STREAM)
(if (AND (LEQ LOW.VERSION COURIER.VERSION#)
(LEQ COURIER.VERSION# HIGH.VERSION))
then (SPP.CLEAREOM STREAM T)
(\COURIER.SERVE STREAM)
else (if COURIERTRACEFLG
then (printout COURIERTRACEFILE T
"Client requesting unknown version of Courier"
,
(SPP.DESTADDRESS STREAM)
, LOW.VERSION , HIGH.VERSION])
(\COURIER.SERVE
[LAMBDA (STREAM) (* cdl "30-Jun-87 08:57")
(until (SPP.EOFP STREAM)
do (SELECTC (GETWORD STREAM)
[\COURIERMSG.CALL
(PROG (PROGRAM PROGRAM# VERSION# PROCEDURE# PROCEDURE PGMDEF PROCDEF
VERSIONS RESULTLST)
(STREAMPROP STREAM (QUOTE TRANSACTIONID)
(GETWORD STREAM))
(* Save the Transaction ID.)
(SETQ PROGRAM# (GETLONG STREAM))
(SETQ VERSION# (GETWORD STREAM))
(SETQ PROCEDURE# (GETWORD STREAM))
(if (SETQ VERSIONS (\FIND.COURIER.PROGRAM PROGRAM# VERSION#))
then [if (SETQ PROGRAM (CDR (FASSOC VERSION# VERSIONS))
)
then
(if (SETQ PROCEDURE (\FIND.COURIER.PROCEDURE
(SETQ PGMDEF (\GET.COURIERPROGRAM
PROGRAM))
PROCEDURE#))
then (SETQ PROCDEF (\GET.COURIER.DEFINITION
PROGRAM PROCEDURE (QUOTE PROCEDURES)
PGMDEF))
(with
COURIERSERVERFN PROCDEF
(if SERVERFN
then (if (NEQ (
\COURIER.APPLY
SERVERFN
STREAM
PROGRAM
PROCEDURE
PGMDEF
PROCDEF)
(QUOTE FLUSH))
then (RETURN))
else (COURIER.REJECT STREAM
\REJECT.NOSUCHPROCEDURE)))
else (COURIER.REJECT STREAM
\REJECT.NOSUCHPROCEDURE))
else (COURIER.REJECT STREAM \REJECT.NOSUCHVERSION
(CONS (in VERSIONS
minimize CAR)
(in VERSIONS
maximize CAR]
else (COURIER.REJECT STREAM \REJECT.NOSUCHPROGRAM))
(* Flush arguments from rejected call)
(bind FLG until (SETQ FLG (SPP.EOFP STREAM))
do (BIN STREAM) finally (SELECTQ FLG
(EOM (SPP.CLEAREOM
STREAM))
NIL]
(SHOULDNT])
(\COURIER.APPLY
[LAMBDA (FN STREAM PROGRAM PROCEDURE PGMDEF PROCDEF) (* cdl "26-Jun-87 11:37")
(DECLARE (SPECVARS FN STREAM PROGRAM PROCEDURE PGMDEF PROCDEF))
(RESETLST (PROG (XIPSOCKETPAIR ARGLST RESULTS DATASTREAM)
(DECLARE (SPECVARS XIPSOCKETPAIR ARGLST))
[if (type? XIPSOCKETPAIR STREAM)
then (with XIPSOCKETPAIR (SETQ XIPSOCKETPAIR STREAM)
(SETQ STREAM (\CREATE.EXPEDITED.STREAM
XIP
(QUOTE INPUT)
NIL
(INDEXF (fetch (EXPEDITEDXIP ARG0) of T]
[SETQ ARGLST (for TYPE in (with COURIERFN PROCDEF ARGS)
collect (SELECTQ TYPE
((BULK.DATA.SINK BULK.DATA.SOURCE)
(SELECTC (GETWORD STREAM)
(\SINK.IMMEDIATE NIL)
((LIST \SINK.NULL
\SINK.PASSIVE
\SINK.ACTIVE)
(* Server only handles IMMEDIATE transfer, error out
as cleanly as we can)
(COURIER.REJECT
STREAM)
(RETURN (QUOTE
FLUSH)))
(SHOULDNT))
(SETQ DATASTREAM
(\BULK.DATA.STREAM
STREAM
(SELECTQ TYPE
(BULK.DATA.SOURCE
(QUOTE INPUT))
(QUOTE OUTPUT))
PROGRAM PROCEDURE PGMDEF PROCDEF)
))
(COURIER.READ STREAM PROGRAM TYPE]
(if XIPSOCKETPAIR
then (SETQ STREAM XIPSOCKETPAIR)
else (SELECTQ (SPP.EOFP STREAM)
(EOM (SPP.CLEAREOM STREAM))
NIL))
(if [SETQ RESULTS (NLSETQ (APPLY FN (LIST* STREAM PROGRAM PROCEDURE
ARGLST]
then (SETQ RESULTS (CAR RESULTS))
else (if COURIERTRACEFLG
then (printout COURIERTRACEFILE T
"Courier server function break:"
, FN))
(COURIER.REJECT STREAM \REJECT.UNSPECIFIED)
(RETURN))
(if (AND DATASTREAM (OPENP DATASTREAM))
then (CLOSE.BULK.DATA DATASTREAM))
(SELECTQ (CAR RESULTS)
(RETURN (COURIER.RETURN STREAM PROGRAM PROCEDURE (CDR
RESULTS)))
(ABORT (COURIER.ABORT STREAM PROGRAM (CADR RESULTS)
(CDDR RESULTS)))
(REJECT (COURIER.REJECT STREAM (CADR RESULTS)
(CDDR RESULTS)))
NIL)
(RETURN])
(\COURIER.SETUP.REPLY
[LAMBDA (STREAM TYPE) (* cdl "26-Jun-87 11:30")
(LET (TRANSACTIONID)
[if (type? XIPSOCKETPAIR STREAM)
then (SETQ TRANSACTIONID (with EXPEDITEDXIP (with XIPSOCKETPAIR STREAM XIP)
TRANSACTIONID))
[with XIPSOCKETPAIR STREAM (SETQ STREAM (\CREATE.EXPEDITED.STREAM
XIP
(QUOTE OUTPUT)
NIL
(INDEXF (fetch (EXPEDITEDXIP MSGTYPE) of T]
else (SETQ TRANSACTIONID (STREAMPROP STREAM (QUOTE TRANSACTIONID]
(PUTWORD STREAM TYPE)
(PUTWORD STREAM TRANSACTIONID) (* Transaction ID just echoed for now.)
STREAM])
(\COURIER.FINISH.REPLY
[LAMBDA (COURIERSTREAM STREAM) (* cdl " 7-Nov-85 19:22")
(if (type? XIPSOCKETPAIR COURIERSTREAM)
then (with XIPSOCKETPAIR COURIERSTREAM (replace (XIP XIPLENGTH) of XIP
with (with STREAM STREAM COFFSET))
(SWAPXIPADDRESSES XIP)
(with ETHERPACKET XIP (SETQ EPREQUEUE (QUOTE FREE)))
(SENDXIP SOCKET XIP))
else (SPP.SENDEOM COURIERSTREAM])
(\FIND.COURIER.PROGRAM
[LAMBDA (PROGRAM VERSION) (* cdl "30-Jun-87 08:56")
(DECLARE (SPECVARS PROGRAM VERSION))
(LET (VERSIONS)
(DECLARE (SPECVARS VERSIONS))
[MAPHASH \COURIERPROGRAM (FUNCTION (LAMBDA (VALUE KEY)
(DECLARE (USEDFREE PROGRAM VERSION VERSIONS))
(with COURIERPGM VALUE (if (EQP PROGRAM# PROGRAM)
then (push VERSIONS (CONS VERSION# KEY))
(if (EQP VERSION# VERSION)
then
(* We found the requested version, no reason to look
for others)
(RETFROM
(FUNCTION MAPHASH]
VERSIONS])
(\FIND.COURIER.PROCEDURE
[LAMBDA (PGMDEF PROCEDURE#) (* cdl "26-Jun-87 08:33")
(LET (PROCEDURE)
(if [SETQ PROCEDURE (OR (for PROCEDURE in (with COURIERPGM PGMDEF PROCEDURES)
thereis (EQP (with COURIERFN (CDR PROCEDURE)
FN#)
PROCEDURE#))
(for OTHERPROGRAM in (with COURIERPGM PGMDEF INHERITS)
when [SETQ $$VAL
(with COURIERPGM (\GET.COURIERPROGRAM
OTHERPROGRAM)
(for PROCEDURE in PROCEDURES
thereis (EQP (with COURIERFN
(CDR
PROCEDURE)
FN#)
PROCEDURE#]
do (RETURN $$VAL]
then (CAR PROCEDURE])
)
(DEFINEQ
(\EXPEDITEDCOURIERSERVER
[LAMBDA (XIP SOCKET) (* cdl "26-Jun-87 09:08")
(if COURIERTRACEFLG
then (printout COURIERTRACEFILE T "Expedited server connection with" ,
(with XIP XIP XIPSOURCENSADDRESS)))
(LET ((XIPSOCKETPAIR (create XIPSOCKETPAIR
XIP ← XIP
SOCKET ← SOCKET)))
(with EXPEDITEDXIP XIP (if (NOT (AND (LEQ LOWVERSION COURIER.VERSION#)
(LEQ COURIER.VERSION# HIGHVERSION)))
then (if COURIERTRACEFLG
then (printout COURIERTRACEFILE T
"Client requesting unknown version of Courier"
,
(with XIP XIP XIPSOURCENSADDRESS)
, LOWVERSION , HIGHVERSION))
(COURIER.REJECT XIPSOCKETPAIR)))
(ADD.PROCESS (BQUOTE (\EXPEDITEDCOURIER.SERVE , (KWOTE XIPSOCKETPAIR])
(\EXPEDITEDCOURIER.SERVE
[LAMBDA (XIPSOCKETPAIR) (* cdl "30-Jun-87 08:57")
(with EXPEDITEDXIP (with XIPSOCKETPAIR XIPSOCKETPAIR XIP)
(SELECTC MSGTYPE
[\COURIERMSG.CALL (PROG (PROGRAM PROCEDURE PGMDEF PROCDEF VERSIONS RESULTLST)
(if (SETQ VERSIONS (\FIND.COURIER.PROGRAM
PROGRAM# VERSION#))
then [if (SETQ PROGRAM
(CDR (FASSOC VERSION#
VERSIONS)))
then
(if (SETQ PROCEDURE
(\FIND.COURIER.PROCEDURE
(SETQ PGMDEF
(\GET.COURIERPROGRAM
PROGRAM))
PROCEDURE#))
then
(SETQ PROCDEF
(\GET.COURIER.DEFINITION
PROGRAM PROCEDURE
(QUOTE PROCEDURES)
PGMDEF))
(with COURIERSERVERFN PROCDEF
(if SERVERFN
then
(\COURIER.APPLY
SERVERFN
XIPSOCKETPAIR
PROGRAM
PROCEDURE PGMDEF
PROCDEF)
else (
COURIER.REJECT
XIPSOCKETPAIR
\REJECT.NOSUCHPROCEDURE)))
else (COURIER.REJECT
XIPSOCKETPAIR
\REJECT.NOSUCHPROCEDURE))
else (COURIER.REJECT
XIPSOCKETPAIR
\REJECT.NOSUCHVERSION
(CONS (in VERSIONS
minimize CAR)
(in VERSIONS
maximize CAR]
else (COURIER.REJECT XIPSOCKETPAIR
\REJECT.NOSUCHPROGRAM]
(SHOULDNT])
(\CREATE.EXPEDITED.STREAM
[LAMBDA (XIP ACCESS OSTREAM OFFSET) (* cdl " 8-Sep-85 16:20")
(* * Makes a STREAM to access the contents of XIP as an expedited courier message body. We use the BASEBYTES device
for simplicity. All the operations we actually need are BIN, BOUT, BLOCKIN and BLOCKOUT)
(PROG [END (STREAM (OR OSTREAM (NCREATE (QUOTE STREAM]
(replace DEVICE of STREAM with \BASEBYTESDEVICE)
(replace ACCESS of STREAM with ACCESS)
(replace CBUFPTR of STREAM with (fetch (XIP XIPBASE) of XIP))
[replace COFFSET of STREAM
with (IPLUS \XIPOVLEN (UNFOLD 3 BYTESPERWORD)
(COND
((EQ ACCESS (QUOTE INPUT))
(* For COURIER.RESULTS)
(SETQ END (fetch XIPLENGTH of XIP))
(UNFOLD (OR OFFSET (INDEXF (fetch (EXPEDITEDXIP MSGTYPE)
of T)))
BYTESPERWORD))
(T (* For COURIER.EXPEDITED.ARGS)
(SETQ END (IPLUS \MAX.XIPDATALENGTH \XIPOVLEN))
(UNFOLD (OR OFFSET (INDEXF (fetch (EXPEDITEDXIP ARG0)
of T)))
BYTESPERWORD]
(replace EOFFSET of STREAM with (replace CBUFSIZE of STREAM with END))
[COND
((EQ ACCESS (QUOTE INPUT)) (* Will cause error if COURIER.RESULTS tries to read
more than was sent -- should never happen)
(replace ENDOFSTREAMOP of STREAM with (FUNCTION \COURIER.EOF)))
(T (* Invoked if COURIER.EXPEDITED.ARGS tries to write
more than will fit in the packet)
(replace (BASEBYTESTREAM WRITEXTENSIONFN) of STREAM
with (FUNCTION \COURIER.EXPEDITED.OVERFLOW]
(RETURN STREAM])
)
(PUTPROPS COURIER.CALL ARGNAMES (NIL (STREAM PROGRAM PROCEDURE ARG1 ... ARGn NOERRORFLG) . U))
(PUTPROPS COURIER.EXPEDITED.CALL ARGNAMES (NIL (ADDRESS SOCKET PROGRAM PROCEDURE ARG1 ... ARGn
NOERRORFLG) . U))
(DECLARE: EVAL@COMPILE
(RPAQQ \REJECT.NOSUCHPROGRAM 0)
(RPAQQ \REJECT.NOSUCHVERSION 1)
(RPAQQ \REJECT.NOSUCHPROCEDURE 2)
(RPAQQ \REJECT.INVALIDARGUMENTS 3)
(RPAQQ \REJECT.UNSPECIFIED 65535)
(RPAQQ \SINK.NULL 0)
(RPAQQ \SINK.IMMEDIATE 1)
(RPAQQ \SINK.PASSIVE 2)
(RPAQQ \SINK.ACTIVE 3)
(CONSTANTS (\REJECT.NOSUCHPROGRAM 0)
(\REJECT.NOSUCHVERSION 1)
(\REJECT.NOSUCHPROCEDURE 2)
(\REJECT.INVALIDARGUMENTS 3)
(\REJECT.UNSPECIFIED 65535)
(\SINK.NULL 0)
(\SINK.IMMEDIATE 1)
(\SINK.PASSIVE 2)
(\SINK.ACTIVE 3))
)
(DECLARE: DONTCOPY
[DECLARE: EVAL@COMPILE
(RECORD COURIERSERVERFN (FN# ARGS RETURNSNOISE RESULTS REPORTSNOISE ERRORS IMPLEMENTEDNOISE
SERVERFN))
(TYPERECORD XIPSOCKETPAIR (XIP . SOCKET))
]
)
(PUTPROPS COURIERSERVE COPYRIGHT ("Xerox Corporation & Stanford University" 1985 1986 1987))
STOP