/* REXX VSPROC Demonstrates use of RXVSAM for dealing with VSAM files. Cloned from VSLIST, it provides the ability to package the necessary processing in a callable subroutine. The called subroutine starts with RXVSAM available and the necessary VSAM file in an OPEN state. Use '(routine name) ?' for HELP-text. Written by Frank Clarke 20020807 Impact Analysis . SYSEXEC RUNDATA . SYSEXEC TRAPOUT . ISPLLIB RXVSAM Modification History 20091110 fxc pass through any unparsed parms via ; the subroutine may need add'l info; 20230726 fxc adjust HELP; 20240415 fxc DUMP_QUEUE quiet; 20250409 fxc use RUNDATA.RXVSAM instead of RUNDATA.SYSUMON; 20250810 fxc adjust HELP; 20250925 fxc SPACEOUT; new BACKEND; */ arg argline address ISPEXEC /* REXXSKEL ver.20020513 */ arg parms "((" opts signal on syntax signal on novalue call TOOLKIT_INIT /* conventional start-up -*/ rc = Trace( "O" ); rc = Trace( tv ) info = parms /* to enable parsing */ call A_INIT /* -*/ if \sw.0error_found then, call B_VSAM_OPS /* -*/ if \sw.0nested then call DUMP_QUEUE 'quiet' /* -*/ exit /*@ VSPROC */ /* . ----------------------------------------------------------------- */ A_INIT: /*@ */ if branch then call BRANCH address TSO call AK_KEYWDS /* -*/ if vsamdsn = "" then do helpmsg = "DSN is required." call HELP /* -*/ end return /*@ A_INIT */ /* . ----------------------------------------------------------------- */ AK_KEYWDS: /*@ */ if branch then call BRANCH address TSO mainproc = KEYWD( "SUBR" ) /* the processing subroutine */ parse value KEYWD( "DSN" ) vsamdsn with, vsamdsn . parse value KEYWD( "ORG" ) "KSDS" with, org . return /*@ AK_KEYWDS */ /* . ----------------------------------------------------------------- */ B_VSAM_OPS: /*@ */ if branch then call BRANCH address TSO "ALLOC FI( VSDS ) DA( "vsamdsn" ) SHR REU" /* rc = RXVSAM('OPENINPUT','VSDS', org ) */ (mainproc) "((" opts /* rc = RXVSAM('CLOSE','VSDS') */ "FREE FI( VSDS )" return /*@ B_VSAM_OPS */ /* . ----------------------------------------------------------------- */ LOCAL_PREINIT: /*@ customize opts */ address TSO "NEWSTACK" "RUNDATA READ TBLKEY RXVSAM " /* sets RXVSAMLL, &c. */ do queued() /* return from RUNDATA */ pull tag tagval if tag = "" then do sw.0Error_Found = 1 "DELSTACK" say tag tagval exit end tagval = Space( tagval,1 ) @z = Value( tag,tagval ) /* tag <-- tagval */ end /* queued */ if Symbol( 'RXVSAMLL' ) = 'LIT' then do 'delstack' helpmsg = "RUNDATA did not supply a required value. ", "Correct the RUNDATA table", "before proceeding. " say helpmsg exit end "DELSTACK" parse value KEYWD( "VSAMIN" ) "'"vspref".SYSUMON.KSD'" with, vsamdsn . return /*@ LOCAL_PREINIT */ /* subroutines below LOCAL_PREINIT are not selected by SHOWFLOW */ /* . ----------------------------------------------------------------- */ HELP: /*@ */ address TSO;"CLEAR" ; say if helpmsg <> "" then say helpmsg ex_nam = Left( exec_name,8 ) /* predictable size */ say " " say " "ex_nam" provides the framework for wide-ranging processing on any " say " VSAM dataset. This root routine allocates and opens the " say " specified VSAM dataset, then calls the specified external " say " subroutine. On return, the dataset is closed and freed. " say " All dataset-specific processing is encapsulated in the " say " external subroutine. " say " " say " Syntax: "ex_nam" DSN vsamdsn (Defaults)" say " SUBR routine (Required)" say " ORG KSDS | ESDS | RRDS (Defaults)" say " " say " vsamdsn identifies the CLUSTER for which VSAM I/O is to be " say " done. The default value is set in LOCAL_PREINIT. " say " " say " routine names a (REXX) external subroutine which uses RXVSAM" say " to operate on a VSAM dataset. The routine is passed" say " a copy of the original 'opts'. DD(VSDS) is " say " allocated and ready to be opened by . " say " " say " ORG specifies whether the cluster is KS, ES, or RR. If " say " not specified, it is assumed to be KSDS. " "NEWSTACK"; pull ; "CLEAR" ; "DELSTACK" say " Debugging tools provided include: " say " " say " BRANCH show all paragraph entries. " say " " say " TRACE tv will use value following TRACE to place the " say " execution in REXX TRACE Mode. " say " " say " Debugging tools can be accessed in the following manner: " say " " say " TSO "ex_nam" parameters (( debug-options " say " " say " For example " say " " say " TSO "ex_nam" (( trace ?r branch " if sysvar( "SYSISPF" ) = "ACTIVE" then, address ISPEXEC "CONTROL DISPLAY REFRESH" exit /*@ HELP */ /* . ----------------------------------------------------------------- */ BRANCH: Procedure expose, /*@ */ sigl exec_name rc = trace( "O" ) /* we do not want to see this */ arg brparm . origin = sigl /* where was I called from ? */ do currln = origin to 1 by -1 /* inch backward to label */ if Right( Word( Sourceline( currln ),1 ),1 ) = ":" then do parse value sourceline( currln ) with pgfname ":" ./* Label */ leave ; end /* name */ end /* currln */ select when brparm = "NAME" then return( pgfname ) /* full name */ when brparm = "ID" then do /* wants the prefix */ parse var pgfname pgfpref "_" . /* get the prefix */ return( pgfpref ) end /* brparm = "ID" */ otherwise say left( sigl,6 ) left( pgfname,40 ) , exec_name "Time:" time( "L" ) end /* select */ return /*@ BRANCH */ /* . ----------------------------------------------------------------- */ DUMP_QUEUE: /*@ Take whatever is in stack */ rc = trace( "O" ) /* and write to the screen */ address TSO arg mode . "QSTACK" /* how many stacks? */ stk2dump = rc - tk_init_stacks /* remaining stacks */ if stk2dump = 0 & queued() = 0 then return if mode <> "QUIET" then, say "Total Stacks" rc , /* rc = #of stacks */ " Begin Stacks" tk_init_stacks , /* Stacks present at start */ " Excess Stacks to dump" stk2dump do dd = rc to tk_init_stacks by -1 /* empty each one. */ if mode <> "QUIET" then, say "Processing Stack #" dd " Total Lines:" queued() do queued();parse pull line;say line;end /* pump to the screen */ "DELSTACK" /* remove stack */ end /* dd = 1 to rc */ return /*@ DUMP_QUEUE */ /* Handle CLIST-form keywords added 20020513 . ----------------------------------------------------------------- */ CLKWD: Procedure expose info /*@ hide all except info */ arg kw kw = kw"(" /* form is 'KEY(DATA)' */ kw_pos = Pos( kw,info ) /* find where it is, maybe */ if kw_pos = 0 then return "" /* send back a null, not found*/ rtpt = Pos( '5d40'x,info" ",kw_pos ) /* locate end-paren */ slug = Substr( info,kw_pos,rtpt-kw_pos+1 ) /* isolate */ info = Delstr( info,kw_pos,rtpt-kw_pos+1 ) /* excise */ parse var slug (kw) slug /* drop kw */ slug = Reverse( Substr( Reverse( Strip( slug ) ),2 ) ) return slug /*@CLKWD */ /* Handle multi-word keys 20020513 . ----------------------------------------------------------------- */ KEYWD: Procedure expose info /*@ hide all vars, except info*/ arg kw kw_pos = wordpos( kw,info ) /* find where it is, maybe */ if kw_pos = 0 then return "" /* send back a null, not found*/ kw_val = word( info,kw_pos+Words( kw ) ) /* get the next word */ info = Delword( info,kw_pos,2 ) /* remove both */ return kw_val /*@ KEYWD */ /* . ----------------------------------------------------------------- */ KEYPHRS: Procedure expose, /*@ */ info helpmsg exec_name /* except these three */ arg kp wp = wordpos( kp,info ) /* where is it? */ if wp = 0 then return "" /* not found */ front = subword( info,1,wp-1 ) /* everything before kp */ back = subword( info,wp+1 ) /* everything after kp */ parse var back dlm back /* 1st token must be 2 bytes */ if length( dlm ) <> 2 then /* Must be two bytes */ helpmsg = helpmsg, "Invalid length for delimiter( "dlm" ) with KEYPHRS( "kp" )", info if wordpos( dlm,back ) = 0 then /* search for ending delimiter*/ helpmsg = helpmsg, "No matching second delimiter( "dlm" ) with KEYPHRS( "kp" )", info if helpmsg <> "" then call HELP /* Something is wrong */ parse var back kpval (dlm) back /* get everything b/w delim */ info = front back /* restore remainder */ return Strip( kpval ) /*@ KEYPHRS */ /* . ----------------------------------------------------------------- */ NOVALUE: /*@ */ say exec_name "raised NOVALUE at line" sigl say " " say "The referenced variable is" condition( "D" ) say " " zsigl = sigl signal SHOW_SOURCE /*@ NOVALUE */ /* . ----------------------------------------------------------------- */ SHOW_SOURCE: /*@ */ call DUMP_QUEUE /* Spill contents of stacks -*/ if sourceline() <> "0" then /* to screen */ say sourceline( zsigl ) rc = trace( "?R" ) nop exit /*@ SHOW_SOURCE */ /* . ----------------------------------------------------------------- */ SS: Procedure /*@ Show Source */ arg ssbeg ssend . if ssend = "" then ssend = 10 if \datatype( ssbeg,"W" ) | \datatype( ssend,"W" ) then return ssend = ssbeg + ssend do ssii = ssbeg to ssend ; say Strip( sourceline( ssii ),'T' ) end return /*@ SS */ /* . ----------------------------------------------------------------- */ SWITCH: Procedure expose info /*@ */ arg kw sw_val = Wordpos( kw,info ) > 0 /* exists = 1; not found = 0 */ if sw_val then /* exists */ info = Delword( info,Wordpos( kw,info ),1 ) /* remove it */ return sw_val /*@ SWITCH */ /* . ----------------------------------------------------------------- */ SYNTAX: /*@ */ errormsg = exec_name "encountered REXX error" rc "in line" sigl":", errortext( rc ) say errormsg zsigl = sigl signal SHOW_SOURCE /*@ SYNTAX */ /* Can call TRAPOUT. . ----------------------------------------------------------------- */ TOOLKIT_INIT: /*@ */ address TSO info = Strip( opts,'T','5d'x ) /* clip trailing paren */ parse source sys_id how_invokt exec_name DD_nm DS_nm, as_invokt cmd_env addr_spc usr_tokn parse value "" with tv helpmsg . parse value 0 "ISR00000 YES" "Error-Press PF1" with, sw. zerrhm zerralrm zerrsm if SWITCH( "TRAPOUT" ) then do "TRAPOUT" exec_name parms "(( TRACE R" info exit end /* trapout */ sw.0nested = sysvar( "SYSNEST" ) = "YES" sw.0batch = sysvar( "SYSENV" ) = "BACK" sw.0inispf = sysvar( "SYSISPF" ) = "ACTIVE" parse value KEYWD( "TRACE" ) "N" with tv . if Word( parms,1 ) = "?" then call HELP /* I won't be back */ "QSTACK" ; tk_init_stacks = rc /* How many stacks? */ parse value SWITCH( "BRANCH" ) , SWITCH( "MONITOR" ) , SWITCH( "NOUPDT" ) with, branch monitor noupdt . parse value mvsvar( "SYSNAME" ) sysvar( "SYSNODE" ) with, #tk_cpu node . tk_globalvars = "exec_name tv helpmsg sw. zerrhm zerralrm ", "zerrsm zerrlm tk_init_stacks branch monitor ", "noupdt" call LOCAL_PREINIT /* for more opts -*/ return /*@ TOOLKIT_INIT */