/* REXX VSAMINIT writes a dummy record to a newly-created VSAM dataset, then deletes that record. Written by Frank Clarke 20030328 Impact Analysis . SYSPROC TRAPOUT Modification History ccyymmdd xxx ..... .... */ 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.nested then call DUMP_QUEUE /* -*/ 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 /* -*/ call AV_SETUP_RXVSAM /* -*/ parse var parms vsdsn parms call ZL_LOGMSG("Initializing" vsdsn) call AX_LISTCSUM /* -*/ return /*@ A_INIT */ /* . ----------------------------------------------------------------- */ AA_SETUP_LOG: /*@ */ if branch then call BRANCH address TSO parse value "0" with, log# log. parse value Date("S") Time("S") Time("N") with, yyyymmdd sssss hhmmss . 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""Right(sssss,5,0) /* X1423722 ? */ vb4k.0 = "NEW CATALOG UNIT(SYSDA) SPACE(1 5) TRACKS", "RECFM(V B) LRECL(4096) BLKSIZE(0)" vb4k.1 = "SHR" /* if it already exists... */ logdsn = "@@LOG."exec_name"."subid".LIST" call ZL_LOGMSG(exec_name "started by" Userid() yyyymmdd hhmmss) call ZL_LOGMSG("Arg:" argline) 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 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(tag":" info) say "" keylen = KEYWD("KEYLEN") avgrec = KEYWD("AVGLRECL") maxrec = KEYWD("MAXLRECL") rkp = KEYWD("RKP") end if tag = "DATAALLOCATION" then do call ZL_LOGMSG(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("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") call ZL_LOGMSG(Left(action,14) "RC="rxv_rc rxvsam_returnmsg) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG(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") call ZL_LOGMSG(Left(action,14) "RC="rxv_rc rxvsam_returnmsg) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG(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") call ZL_LOGMSG(Left(action,14) "RC="rxv_rc rxvsam_returnmsg) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG(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") call ZL_LOGMSG(Left(action,14) "RC="rxv_rc rxvsam_returnmsg) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG(rxvsam_vsamerrormsg) sw.0error_found = 1 return end action = rq.delete key = Left(data,keylen) rxv_rc = RXVSAM(action,vsdd, key ) call ZL_LOGMSG(Left(action,14) "RC="rxv_rc rxvsam_returnmsg) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG(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) call ZL_LOGMSG(Left(action,14) "RC="rxv_rc rxvsam_returnmsg) if rxvsam_vsamerrormsg <> "" &, rxvsam_vsamerrormsg <> "RXVSAM_VSAMERRORMSG" then do call ZL_LOGMSG(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 */ "ALLOC FI($LOG) DA("logdsn") REU" vb4k.0 "EXECIO" log# "DISKW $LOG (STEM LOG. FINIS" "FREE FI($LOG)" return /*@ ZB_SAVELOG */ /* . ----------------------------------------------------------------- */ ZL_LOGMSG: Procedure expose, /*@ */ (tk_globalvars) log. log# rc = Trace("O") address TSO parse arg msgtext 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 do ; say helpmsg; say ""; end ex_nam = Left(exec_name,8) /* predictable size */ say " "ex_nam" writes a dummy record to a newly-created VSAM " say " dataset, then deletes that record. " say " " say " Syntax: "ex_nam" " say " (( " 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 " 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) /* Return 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 "QSTACK" /* how many stacks? */ stk2dump = rc - tk_init_stacks /* remaining stacks */ if stk2dump = 0 & queued() = 0 then return 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. */ say "Processing Stack #" dd " Total Lines:" queued() do queued();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(") ",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")" if wordpos(dlm,back) = 0 then /* search for ending delimiter*/ helpmsg = helpmsg "No matching second delimiter("dlm") with KEYPHRS("kp")" 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",")") /* 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 */ 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 . sw.nested = sysvar("SYSNEST") = "YES" sw.batch = sysvar("SYSENV") = "BACK" sw.inispf = sysvar("SYSISPF") = "ACTIVE" parse value KEYWD("TRACE") "O" with tv . 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 */