/* REXX VSAMINIT writes a dummy record to a newly-created VSAM dataset, then deletes that record. Use '(routine name) ?' for HELP-text. Written by Frank Clarke rexxhead@yahoo.com 20030328 Impact Analysis . SYSEXEC LISTCSUM . SYSEXEC TRAPOUT Modification History 20230726 fxc adjust HELP; 20230803 fxc use hhmm for log file name; 20230806 fxc chg SYSPROC to SYSEXEC in Impact Analysis; 20230908 fxc set log lrecl to 255; 20240308 fxc chg dollar-sign to @ everywhere; 20240309 fxc add logpref; 20240415 fxc DUMP_QUEUE quiet; 20250613 fxc add exec_name to logpref; 20250709 fxc SPACEOUT; 20250925 fxc new BACKEND; chg setting of sw. to sw.0; 20251014 fxc new @LOGMSG; 20251017 fxc upgrade for MSGPARMS; */ arg argline address TSO /* 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.0KeepLog then, call ZB_SAVELOG /* */ if \sw.0nested then call DUMP_QUEUE 'quiet' /* -*/ exit /*@ VSAMINIT */ /* Initialization . ----------------------------------------------------------------- */ A_INIT: /*@ */ if branch then call BRANCH address TSO parse value "@KSDS" with , vsdd rxvsam_vsamerrormsg , rxvsam_returnmsg . call AA_SETUP_LOG /* -*/ logpref = exec_name "("Branch( "ID" )")" call ZL_LOGMSG( exec_name "started by" Userid() yyyymmdd hhmmss ) call ZL_LOGMSG( logpref "Arg:" argline ) call AV_SETUP_RXVSAM /* -*/ parse var parms vsdsn parms logpref = exec_name "("Branch( "ID" )")" call ZL_LOGMSG( logpref "Initializing" vsdsn ) call AX_LISTCSUM /* -*/ return /*@ A_INIT */ /* . ----------------------------------------------------------------- */ AA_SETUP_LOG: /*@ */ if branch then call BRANCH address TSO msglim = SYSVAR( "SYSWTERM" ) - 12 msgparms = 'msglim log# log. ' parse value "0 0 0 0 0" with, log# log. . parse value Date( "S" ) Time( "S" ) Time( "N" ) with, yyyymmdd sssss hhmmss . hhmmss = Space( Translate( hhmmss,' ',':' ) ,0 ) parse var yyyymmdd 4 yrdigit 5 mm 7 dd /* 9 12 14 maybe */ if Pos( yrdigit,"13579" ) > 0 then mm = mm + 12 /* mm=24 */ logtag = Substr( "ABCDEFGHIJKLMNOPQRSTUVWX",mm,1 ) /* logtag=X */ subid = logtag""dd""Left( hhmmss,4 ) /* X141743 ? */ vblog.0 = "NEW CATALOG UNIT( SYSDA ) SPACE( 1 5 ) TRACKS", "RECFM( V B ) LRECL( 255 ) BLKSIZE( 0 )" vblog.1 = "MOD" /* if it already exists... */ logdsn = "@LOG."exec_name"."subid".LIST" if Sysdsn( logdsn ) = "OK" then, call ZL_LOGMSG( "-------------------" ) return /*@ AA_SETUP_LOG */ /* Establish the file actions. This serves as documentation as well as setting the literals. . ----------------------------------------------------------------- */ AV_SETUP_RXVSAM: /*@ */ if branch then call BRANCH address TSO rq. = "? " /* file actions */ rq.openinput = "OPENINPUT " rq.openoutput = "OPENOUTPUT " rq.openio = "OPENIO " rq.close = "CLOSE " rq.read = "READ " rq.readgeneric = "READGENERIC " rq.readnext = "READNEXT " rq.readprev = "READPREV " rq.readlast = "READLAST " rq.write = "WRITE " rq.rewrite = "REWRITE " rq.delete = "DELETE " rq.startfwd = "STARTFWD " rq.startbwd = "STARTBWD " return /*@ AV_SETUP_RXVSAM */ /* Learn the characteristics of the VSAM file. . ----------------------------------------------------------------- */ AX_LISTCSUM: /*@ */ if branch then call BRANCH address TSO logpref = exec_name "("Branch( "ID" )")" parse value " 0 0 0 0 0 0 0" with , keylen avgrec maxrec rkp high_used . "NEWSTACK" "LISTCSUM" vsdsn "STACK" do queued() parse pull tag ":" info if tag = "DATAATTRIBUTES" then do call ZL_LOGMSG( logpref tag":" info ) say "" keylen = KEYWD( "KEYLEN" ) avgrec = KEYWD( "AVGLRECL" ) maxrec = KEYWD( "MAXLRECL" ) rkp = KEYWD( "RKP" ) end if tag = "DATAALLOCATION" then do call ZL_LOGMSG( logpref tag":" info ) say "" high_used = KEYWD( "HI U RBA" ) end end /* queued */ "DELSTACK" if high_used > 0 then do sw.0already_init = 1 call ZL_LOGMSG( logpref , "High-Used-RBA is" high_used". This dataset", "is already initialized." ) end sw.0error_found = (avgrec = 0) | sw.0already_init return /*@ AX_LISTCSUM */ /* . ----------------------------------------------------------------- */ B_VSAM_OPS: /*@ */ if branch then call BRANCH address TSO "ALLOC FI( "vsdd" ) DA( "vsdsn" ) SHR REU" call BL_LOAD /* load the dummy record */ if \sw.0error_found then, call BS_SCRUB /* purge the dummy record */ "FREE FI( "vsdd" )" return /*@ B_VSAM_OPS */ /* . ----------------------------------------------------------------- */ BL_LOAD: /*@ */ if branch then call BRANCH address TSO call BLO_OPEN_OUT /* -*/ if \sw.0error_found then, call BLW_WRITE /* -*/ call BZ_CLOSE /* -*/ return /*@ BL_LOAD */ /* . ----------------------------------------------------------------- */ BLO_OPEN_OUT: /*@ */ if branch then call BRANCH address TSO action = rq.openoutput rxv_rc = RXVSAM( action,vsdd,"KSDS" ) logpref = exec_name "("Branch( "ID" )")" call ZL_LOGMSG( logpref Left( action,14 ) , "RC="rxv_rc rxvsam_returnmsg ) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG( logpref rxvsam_vsamerrormsg ) sw.0error_found = 1 end return /*@ BLO_OPEN_OUT */ /* . ----------------------------------------------------------------- */ BLW_WRITE: /*@ */ if branch then call BRANCH address TSO action = rq.write data = Copies( '00'x,avgrec ) key = Left( data,keylen ) rxv_rc = RXVSAM( action,vsdd,,"DATA" ) logpref = exec_name "("Branch( "ID" )")" call ZL_LOGMSG( logpref Left( action,14 ) , "RC="rxv_rc rxvsam_returnmsg ) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG( logpref rxvsam_vsamerrormsg ) sw.0error_found = 1 end return /*@ BLW_WRITE */ /* . ----------------------------------------------------------------- */ BS_SCRUB: /*@ */ if branch then call BRANCH address TSO call BSO_OPEN_IO /* -*/ if \sw.0error_found then, call BSP_PURGE /* -*/ call BZ_CLOSE /* -*/ return /*@ BS_SCRUB */ /* . ----------------------------------------------------------------- */ BSO_OPEN_IO: /*@ */ if branch then call BRANCH address TSO action = rq.openio rxv_rc = RXVSAM( action,vsdd,"KSDS" ) logpref = exec_name "("Branch( "ID" )")" call ZL_LOGMSG( logpref Left( action,14 ) , "RC="rxv_rc rxvsam_returnmsg) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG( logpref rxvsam_vsamerrormsg ) sw.0error_found = 1 end return /*@ BSO_OPEN_IO */ /* . ----------------------------------------------------------------- */ BSP_PURGE: /*@ */ if branch then call BRANCH address TSO action = rq.readgeneric key = '00'x rxv_rc = RXVSAM( action,vsdd, key ,"DATA" ) logpref = exec_name "("Branch( "ID" )")" call ZL_LOGMSG( logpref Left( action,14 ) , "RC="rxv_rc rxvsam_returnmsg ) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG( logpref rxvsam_vsamerrormsg ) sw.0error_found = 1 return end action = rq.delete key = Left( data,keylen ) rxv_rc = RXVSAM( action,vsdd, key ) call ZL_LOGMSG( logpref Left( action,14 ) , "RC="rxv_rc rxvsam_returnmsg) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG( logpref rxvsam_vsamerrormsg ) sw.0error_found = 1 end return /*@ BSP_PURGE */ /* . ----------------------------------------------------------------- */ BZ_CLOSE: /*@ */ if branch then call BRANCH address TSO action = rq.close rxv_rc = RXVSAM( action,vsdd ) logpref = exec_name "("Branch( "ID" )")" call ZL_LOGMSG( logpref Left( action,14 ) , "RC="rxv_rc rxvsam_returnmsg ) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG( logpref rxvsam_vsamerrormsg ) sw.0error_found = 1 end return /*@ BZ_CLOSE */ /* . ----------------------------------------------------------------- */ LOCAL_PREINIT: /*@ customize opts */ address TSO sw.0KeepLog = SWITCH( "LOG" ) return /*@ LOCAL_PREINIT */ /* subroutines below LOCAL_PREINIT are not selected by SHOWFLOW */ /* . ----------------------------------------------------------------- */ ZB_SAVELOG: /*@ */ if branch then call BRANCH address TSO if Symbol( "LOG#" ) = "LIT" then return /* not yet set */ dsstat = Sysdsn( logdsn ) = "OK" /* 1 if it exists */ "ALLOC FI( @LOG ) DA( " logdsn " ) REU" vblog.dsstat "EXECIO" log# "DISKW @LOG (STEM LOG. FINIS" "FREE FI( @LOG )" return /*@ ZB_SAVELOG */ /* . ----------------------------------------------------------------- */ ZL_LOGMSG: Procedure expose (tk_globalvars) (msgparms) /*@ */ rc = Trace( "O" ) address TSO parse arg msgtext /* for making the msgline always reasonably short: */ do while Length( msgtext ) > msglim pt = LastPos( " ",msgtext,msglim ) slug = Left( msgtext,pt ) if monitor then say, slug parse value log#+1 slug with, zz log.zz 1 log# . msgtext = " "Substr( msgtext,pt ) end /* while msglim */ parse value log#+1 msgtext with, zz log.zz 1 log# . if monitor then say, msgtext return /*@ ZL_LOGMSG */ /* . ----------------------------------------------------------------- */ HELP: /*@ */ address TSO;"CLEAR" if helpmsg <> "" then say helpmsg ex_nam = Left( exec_name,8 ) /* predictable size */ say " " say " "ex_nam" writes a dummy record to a newly-created VSAM dataset, " say " then deletes that record. " say " " say " Syntax: "ex_nam" dsname " say " (( LOG " say " " say " dsname identifies the VSAM CLUSTER to be initialized. " say " " say " LOG causes the diagnostic log file to be kept rather " say " than discarded. " say " " "NEWSTACK"; pull ; "CLEAR" ; "DELSTACK" say " Debugging tools provided include: " say " " say " MONITOR displays key information throughout processing. " say " " say " NOUPDT by-pass all update logic. " 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 " " 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" (( MONITOR TRACE ?R " 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 */