/* REXX DIRSTATS Read directory details directly Written by (probably) Alastair Gray Impact Analysis . SYSEXEC TRAPOUT Modification History 20030707 fxc fixed problem of member-without-stats blowing up in B_JULCONV; */ arg argline address TSO /* REXXSKEL ver.19991109 */ arg parms "((" opts signal on syntax signal on novalue call TOOLKIT_INIT /* conventional start-up -*/ rc = trace(tv) info = parms /* to enable parsing */ call A_INIT /* -*/ call B_SPIN_DIR /* -*/ if \sw.nested then call DUMP_QUEUE /* -*/ exit 0 /*@ DIRSTATS */ /* . ----------------------------------------------------------------- */ A_INIT: /*@ */ if branch then call BRANCH address TSO parse var info dsn . "Alloc Fi(PDS) Da("dsn") Shr Reuse ", "RECFM(F) DSORG(PS) LRECL(256) BLKSIZE(256)" "ExecIO * DiskR PDS (Stem dir. Finis)" /* read PDS directory */ "FREE FI(PDS)" return /*@ A_INIT */ /* . ----------------------------------------------------------------- */ B_SPIN_DIR: /*@ */ bb_tv = trace() /* what setting at entry ? */ if branch then call BRANCH address TSO Do blk = 1 to dir.0 usedbytes = C2d(Substr(dir.blk,1,2)) index = 3 /* skip past used bytes */ Do While index < usedbytes If Substr(dir.blk,index,8) = "FFFFFFFFFFFFFFFF"x Then return rc = Trace("O"); rc = trace(bb_tv) pds2name = Substr(dir.blk,index,8) /* member name */ index = index + 11 /* skip past name and ttr */ pds2indc = Substr(dir.blk,index,1) len = Bitand(pds2indc,"1F"x) /* isolate user data leng */ userlen = C2d(len) * 2 /* halfwords to bytes */ userdata = Substr(dir.blk,index,userlen) /* get userdata */ bits = x2b(C2x(Substr(userdata,1,1))) if userdata <> "" then do If (Substr(bits,1,1) = "1") Then Alias = "*Alias" Else Alias = Right(" ",6) vr = C2d(Substr(userdata,2,1)) if vr > 0 then do parse var userdata , 3 mo 4, 6 created , 10 changed , 14 chnghrs , 15 chngmin , 16 size , 18 init , 20 mod , 22 id 30 mo = C2D(mo) created = C2X(created) date = Left(created,7) Call B_JULCONV created = date changed = C2X(changed) date = Left(changed,7) Call B_JULCONV changed = date chnghrs = C2X(chnghrs) chngmin = C2X(chngmin) chngtim = chnghrs":"chngmin size = C2D(size) init = C2D(init) mod = C2D(mod) end else parse value "Stats?" with alias vr mo created changed , chngtim size init mod id end /* userdata exists */ else parse value "Stats?" with alias vr mo created changed , chngtim size init mod id display = Right(vr,2,"0")"."Right(mo,2,"0"), Left(created,8) Left(changed,8), chngtim Right(size,5)Right(init,5)Right(mod,5) id If created = "" Then queue pds2name alias Else queue pds2name alias display index = index + userlen + 1 /* skip past user data */ End End return /*@ B_SPIN_DIR */ /* Date arrives as 0093224 or 0103187. The 2nd byte is the century: 0 = 19xx, 1 = 20xx. . ----------------------------------------------------------------- */ B_JULCONV: /* convert julian to */ /* gregorian */ parse var date 2 cent 3 juldt date = Date("S",juldt,"J") /* convert to U */ return /*@ B_JULCONV */ /* . ----------------------------------------------------------------- */ LOCAL_PREINIT: /*@ customize opts */ address TSO return /*@ LOCAL_PREINIT */ /* . ----------------------------------------------------------------- */ HELP: /*@ */ address TSO;"CLEAR" if helpmsg <> "" then do ; say helpmsg; say ""; end ex_nam = Left(exec_name,8) /* predictable size */ say " "ex_nam" reads the directory of a PDS or PDSE directly. This code " say " presently has no defined use. It is simply a " say " demonstrator. " say " " say " Syntax: "ex_nam" (Required) " say " " say " dsn a TSO-format datasetname to be examined. The " say " dataset should be PDS or PDSE. " pull "CLEAR" 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 " " 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 */ "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();parse pull line;say line;end /* pump to the screen */ "DELSTACK" /* remove stack */ end /* dd = 1 to rc */ return /*@ DUMP_QUEUE */ /* . ----------------------------------------------------------------- */ 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+1) /* 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 sourceline(ssii) ; 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 = "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 */