source: FOIAVistA/tag/r/RPC_BROKER-XWB/XWBTCPM.m@ 628

XWBTCPM ;ISF/RWF - BROKER TCP/IP PROCESS HANDLER ;01/04/2006  62562.56228
 ;;1.1;RPC BROKER;**35,43**;Mar 28, 1997
 ;Based on: XWBTCPC & XWBTCPL, Modified by ISF/RWF
 ;Changed to be started by UCX or %ZISTCPS
 ;
DSM ;DSM called from ucx, % passed in with device.
 D ESET
 ;Open the device
 S XWBTDEV=% X "O XWBTDEV:(TCPDEV):60" ;Special UCX/DSM open
 ;Go find the connection type
 U XWBTDEV
 G CONNTYPE
 ;
CACHEVMS ;Cache'/VMS tcpip entry point, called from XWBTCP_START.COM file
 D ESET
 S XWBTDEV="SYS$NET"
 ; **Cache'/VMS specific code**
 O XWBTDEV::5
 X "U XWBTDEV:(::""-M"")" ;Packet mode like DSM
 G CONNTYPE
 ;
NT ;entry from ZISTCPS
 ;JOB LISTEN^%ZISTCPS("port","NT^XWBTCPM","stop code")
 D ESET
 S XWBTDEV=IO
 G CONNTYPE
 ;
GTMUCX(%) ;From ucx ZFOO
 ;If called from LISTEN^%ZISTCP(PORT,"GTM^XWBTCPM") S XWBTDEV=IO
 D ESET
 ;GTM specific code
 S @("$ZINTERRUPT=""I $$JOBEXAM^ZU($ZPOSITION)""")
 S XWBTDEV=% X "O %:(RECORDSIZE=512)"
 G CONNTYPE
 ;
GTMLNX ;From Linux xinetd script
 D ESET
 ;GTM specific code
 S @("$ZINTERRUPT=""I $$JOBEXAM^ZU($ZPOSITION)""")
 S XWBTDEV=$P X "U XWBTDEV:(nowrap:nodelimiter)"
 S %="",@("%=$ZTRNLNM(""REMOTE_HOST"")") S:$L(%) IO("GTM-IP")=%
 G CONNTYPE
 ;
ESET ;Set inital error trap
 S U="^",$ETRAP="D ^%ZTER H" ;Set up the error trap
 Q
 ;Find the type of connection and jump to the processing routine.
CONNTYPE ;
 N XWBDEBUG,XWBAPVER,XWBCLMAN,XWBENVL,XWBLOG,XWBOS,XWBPTYPE
 N XWBTBUF,XWBTIP,XWBTSKT,XWBVER,XWBWRAP,XWBSHARE,XWBT
 N SOCK,TYPE
 D INIT
 S XWB=$$BREAD^XWBRW(5,XWBTIME)
 D LOG("MSG format is "_XWB_" type "_$S(XWB="[XWB]":"NEW",XWB="{XWB}":"OLD",XWB="<?xml":"M2M",1:"Unk"))
 I XWB["[XWB]" G NEW
 I XWB["{XWB}" G OLD^XWBTCPM1
 I XWB["<?xml" G M2M
 I $L($T(OTH^XWBTCPM2)) D OTH^XWBTCPM2 ;See if a special code.
 D LOG("Prefix not known: "_XWB)
 Q
 ;
NEWJOB() ;Check if OK to start a new job, Return 1 if OK, 0 if not OK.
 N X,Y,J,XWBVOL
 D GETENV^%ZOSV S XWBVOL=$P(Y,"^",2)
 S X=$O(^XTV(8989.3,1,4,"B",XWBVOL,0)),J=$S(X>0:^XTV(8989.3,1,4,X,0),1:"ROU^y^1")
 I $G(^%ZIS(14.5,"LOGON",XWBVOL)) Q 0 ;Check INHIBIT LOGONS?
 I $D(^%ZOSF("ACTJ")) X ^("ACTJ") I $P(J,U,3),($P(J,U,3)'>Y) Q 0
 Q 1
 ;
M2M ;M2M Broker
 S XWBRBUF=XWB_XWBRBUF,(IO,IO(0))=XWBTDEV G SPAWN^XWBVLL
 Q
 ;
NEW ;New broker
 S U="^",DUZ=0,DUZ(0)="",XWBVER=1.108
 D SETTIME(1) ;Setup for sign-on timeout
 U XWBTDEV D
 . N XWB,ERR,NATIP,I
 . S ERR=$$PRSP^XWBPRS
 . S ERR=$$PRSM^XWBPRS
 . S MSG=$G(XWB(4,"CMD")) ;Build connect msg.
 . S I="" F  S I=$O(XWB(5,"P",I)) Q:I=""  S MSG=MSG_U_XWB(5,"P",I)
 . ;Get the peer and save that IP.
 . S NATIP=$$GETPEER^%ZOSV S:'$L(NATIP) NATIP=$P(MSG,"^",2)
 . I NATIP'=$P(MSG,"^",2) S $P(MSG,"^",2)=NATIP
 . Q
 S X=$$NEWJOB() D:'X LOG("No New Connects")
 I ($P(MSG,U)'="TCPConnect")!('X) D QSND^XWBRW("reject"),LOG("reject: "_MSG) Q
 D QSND^XWBRW("accept"),LOG("accept") ;Ack
 S IO("IP")=$P(MSG,U,2),XWBTSKT=$P(MSG,U,3),XWBCLMAN=$P(MSG,U,4)
 S XWBTIP=$G(IO("IP"))
 ;start RUM for Broker Handler XWB*1.1*5
 D LOGRSRC^%ZOSV("$BROKER HANDLER$",2,1)
 ;GTM
 I $G(XWBT("PCNT")) D
 . S X=$NA(^XUTL("XUSYS",$J,1)) L +@X:0
 . D COUNT^XUSCNT(1),SETLOCK^XUSCNT(X)
 ;We don't use a callback
 K XWB,CON,LEN,MSG ;Clean up
 ;Attempt to share license, Must have TCP port open first.
 U XWBTDEV ;D SHARELIC^%ZOSV(1)
 ;setup null device "NULL"
 S %ZIS="0H",IOP="NULL" D ^%ZIS S XWBNULL=IO I POP S XWBERROR="No NULL device" D ^%ZTER,EXIT Q
 D SAVDEV^%ZISUTL("XWBNULL")
 ;change process name
 D CHPRN("ip"_$P(XWBTIP,".",3,4)_":"_XWBTDEV)
 ;
RESTART ;The error trap returns to here
 N $ESTACK S $ETRAP="D ETRAP^XWBTCPM"
 S DT=$$DT^XLFDT,DTIME=30
 U XWBTDEV D MAIN
 D LOG("Exit: "_XWBTBUF)
 ;Turn off the error trap for the exit
 S $ETRAP=""
 D EXIT ;Logout
 K XWBR,XWBARY
 ;stop RUM for handler XWB*1.1*5
 D LOGRSRC^%ZOSV("$BROKER HANDLER$",2,2)
 D USE^%ZISUTL("XWBNULL"),CLOSE^%ZISUTL("XWBNULL")
 ;Close in the calling script
 K SOCK,TYPE,XWBSND,XWBTYPE,XWBRBUF
 Q
 ;
MAIN ; -- main message processing loop. debug at MAIN+1
 F  D  Q:XWBTBUF="#BYE#"
 . ;Setup
 . S XWBAPVER=0,XWBTBUF="",XWBTCMD="",XWBRBUF=""
 . K XWBR,XWBARY,XWBPRT
 . ; -- read client request
 . S XR=$$BREAD^XWBRW(1,XWBTIME,1)
 . I '$L(XR) D LOG("Timeout: "_XWBTIME) S XWBTBUF="#BYE#" Q
 . S XR=XR_$$BREAD^XWBRW(4)
 . I XR="#BYE#" D  Q  ;Check for exit
 . . D QSND^XWBRW("#BYE#"),LOG("BYE CMD") S XWBTBUF="#BYE#"
 . . Q
 . S TYPE=(XR="[XWB]")  ;check HDR
 . I 'TYPE D LOG("Bad Header: "_XR) Q
 . D CALLP^XWBPRS(.XWBR,$G(XWBDEBUG)) ;Read the NEW Msg parameters and call RPC
 . IF XWBTCMD="#BYE#" D  Q
 . . D QSND^XWBRW("#BYE#"),LOG("BYE CMD") S XWBTBUF=XWBTCMD
 . . Q
 . U XWBTDEV
 . S XWBPTYPE=$S('$D(XWBPTYPE):1,XWBPTYPE<1:1,XWBPTYPE>6:1,1:XWBPTYPE)
 . ;I $G(XWBPRT) D RETURN^XWBPRS2 Q  ;New msg return
 . I '$G(XWBPRT) D SND^XWBRW ;Return data,flush buffer
 Q  ;End Of Main
 ;
 ;
ETRAP ; -- on trapped error, send error info to client
 N XWBERC,XWBERR
 ;Change trapping during trap.
 S $ETRAP="D ^%ZTER,EXIT^XWBTCPM HALT"
 S XWBERC=$E($$EC^%ZOSV,1,200),XWBERR="M  ERROR="_XWBERC_$C(13,10)_"LAST REF="_$$LGR^%ZOSV
 I $EC["U411" S XWBERROR="U411",XWBSEC="",XWBERR="Data Transfer Error to Server"
 D ^%ZTER ;%ZTER clears $ZE and $ZCODE
 D LOG("In ETRAP: "_XWBERC) ;Log
 I (XWBERC["READ")!(XWBERC["WRITE")!(XWBERC["SYSTEM-F") D EXIT HALT
 U XWBTDEV
 I $G(XWBT("PCNT")) L ^XUTL("XUSYS",$J,0)
 E  L  ;Clear Locks
 ;I XWBOS'="DSM" D
 S XWBPTYPE=1 ;So SNDERR won't check XWBR
 ;D SNDERR^XWBRW,WRITE^XWBRW($C(24)_XWBERR_$C(4))
 D ESND^XWBRW($C(24)_XWBERR_$C(4))
 S $ETRAP="Q:($ESTACK&'$QUIT)  Q:$ESTACK -9 S $ECODE="""" D CLEANP^XWBTCPM G RESTART^XWBTCPM",$ECODE=",U99,"
 Q
 ;
CLEANP ;Clean up the partion
 N XWBTDEV,XWBNULL D KILL^XUSCLEAN
 Q
 ;
STYPE(X,WRAP) ;For backward compatability only
 I $D(WRAP) Q $$RTRNFMT^XWBLIB($G(X),WRAP)
 Q $$RTRNFMT^XWBLIB(X)
 ;
BREAD(L,T) ;read tcp buffer, L is length
 Q $$BREAD^XWBRW(L,$G(T))
 ;
CHPRN(N) ;change process name
 ;Change process name to N
 D SETNM^%ZOSV($E(N,1,15))
 Q
 ;
SETTIME(%) ;Set the Read timeout 0=RPC, 1=sign-on
 S XWBTIME=$S($G(%):90,$G(XWBVER)>1.105:$$BAT^XUPARAM,1:36000),XWBTIME(1)=2
 I $G(%) S XWBTIME=$S($G(XWBVER)>1.1:90,1:36000)
 Q
TIMEOUT ;Do this on MAIN  loop timeout
 I $G(DUZ)>0 D QSND^XWBRW("#BYE#") Q
 ;Sign-on timeout
 S XWBR(0)=0,XWBR(1)=1,XWBR(2)="",XWBR(3)="TIME-OUT",XWBPTYPE=2
 D SND^XWBRW
 Q
 ;
OS() ;Return the OS
 Q $S(^%ZOSF("OS")["DSM":"DSM",^("OS")["UNIX":"UNIX",^("OS")["OpenM":"OpenM",1:"MSM")
 ;
INIT ;Setup
 S U="^",XWBTIME=10,XWBOS=$$OS,XWBDEBUG=0,XWBRBUF=""
 S XWBDEBUG=$$GET^XPAR("SYS","XWBDEBUG")
 S XWBT("BF")=$S(XWBOS="GT.M":"#",1:"!")
 S XWBT("PCNT")=0 I XWBOS="GT.M",$L($T(^XUSCNT)) S XWBT("PCNT")=1
 D LOGSTART^XWBDLOG("XWBTCPM")
 Q
 ;
DEBUG ;Entry point for debug, Build a server to get the connect
 ;DSM sample;ZDEBUG ON S $ZB(1)="SERV+1^XWBTCPM:1",$ZB="ETRAP+1^XWBTCPM:1"
 W !,"Before running this entry point set your debugger to stop at"
 W !,"the place you want to debug. Some spots to use:"
 W !,"'SERV+1^XWBTCPM', 'MAIN+1^XWBTCPM' or 'CAPI+1^XWBPRS.'",!
 W !,"or location of your choice.",!
 W !,"IP Socket to Listen on: " R SOCK:300 Q:'$T!(SOCK["^")
 ;Use %ZISTCP to do a single server
 D LISTEN^%ZISTCP(SOCK,"SERV^XWBTCPM")
 U $P W !,"Done"
 Q
SERV ;Callback from the server
 S XWBTDEV=IO,XWBTIME(1)=3600 D INIT
 S XWBDEBUG=1,MSG=$$BREAD^XWBRW(5,60) ;R MSG#5
 D NEW
 S IO("C")=1 ;Cause the Listenr to stop
 Q
 ;
EXIT ;Close out
 I $G(DUZ) D LOGOUT^XUSRB
 I $G(XWBT("PCNT")) D COUNT^XUSCNT(-1)
 Q
 ;
LOG(MSG) ;Record Debug Info
 D:$G(XWBDEBUG) LOG^XWBDLOG(MSG)
 Q
 ;