DIRECTORYIO,DBCommon,DBSegment,DBStats,DBStorageGroup,DBStorageGroupScan,DBStoragePage,DBStoragePrint,DBStorageTuple;DBStoragePrintImpl: CEDAR PROGRAMIMPORTSDBCommon,DBSegment,DBStats,DBStorageGroup,DBStorageGroupScan,DBStoragePage,IOEXPORTS DBStoragePrint =BEGIN OPEN IO, DBCommon;Assert: PROC[condition: BOOLEAN] = {IF ~condition THEN ERROR};Print: PROC [] = {DBSegment.CheckState[doPrinting: TRUE, printOnlyLockedPages: FALSE];DBStorageGroupScan.CheckState[doPrinting: TRUE];DBStats.Print[heading: "DBStorageDebugImpl.Print", out: DBCommon.GetDebugStream[]];};PrintPage: PUBLIC PROC[dbPage: DBCommon.DBPage, p: LONG POINTER, fullPrint: BOOLEAN] = {SELECT DBStoragePage.TagOfPage[LOOPHOLE[p]] FROMDBStoragePage.Unused,DBStoragePage.Free,DBStoragePage.AMap,DBStoragePage.BTree => PrintPageType[dbPage, p, fullPrint];DBStoragePage.Tuple,DBStoragePage.SystemTuple => PrintVecPage[dbPage, LOOPHOLE[p], fullPrint];DBStoragePage.OverflowTuple => PrintOverflowPage[dbPage, LOOPHOLE[p], fullPrint];ENDCASE => PrintPageUnknown[dbPage, p, fullPrint];DBCommon.GetDebugStream[].PutF["*n"];};--PrintPagePrintPageType: PROC[dbPage: DBCommon.DBPage, p: LONG POINTER, fullPrint: BOOLEAN] = {DBCommon.GetDebugStream[].PutF["%bB: a %g", card[dbPage], IO.rope[PagetagToRope[DBStoragePage.TagOfPage[LOOPHOLE[p]]]]];};--PrintPageTypePrintPageUnknown: PROC[dbPage: DBCommon.DBPage, p: LONG POINTER, fullPrint: BOOLEAN] = {DBCommon.GetDebugStream[].PutF["%bB: a page of type %g, an unrecognized type", card[dbPage],card[DBStoragePage.TagOfPage[LOOPHOLE[p]]]];};--PrintPageUnknownPrintVecPage: PROC[dbPage: DBCommon.DBPage, p: LONG POINTER, fullPrint: BOOLEAN] = TRUSTED {debugS: IO.STREAM_ DBCommon.GetDebugStream[];debugS.PutF["%bB: a %g with %g words in free vec space", card[dbPage],IO.rope[PagetagToRope[DBStoragePage.TagOfPage[p]]], card[DBStoragePage.WordsLeftOnPage[p]]];IF ~fullPrint THEN RETURN;debugS.PutF["*n"];FOR slotIndex: CARDINAL IN [1 .. DBStoragePage.HighSlotIndexOfPage[p]] DOdebugS.PutF["%g: ", card[slotIndex]];SELECT DBStoragePage.TypeOfSlot[p, slotIndex] FROMDBStoragePage.FreeType => PrintFreeSlot[];DBStoragePage.UnFreeType => PrintUnFreeSlot[];DBStoragePage.TSDictType => PrintTSDict[p, slotIndex];DBStoragePage.LStringType => PrintLString[p, slotIndex];IN [1..DBStoragePage.MaxTuplesetPerPage] => PrintTupleVec[p, slotIndex];ENDCASE => PrintUnimplemented[DBStoragePage.TypeOfSlot[p, slotIndex]];ENDLOOP;};--PrintVecPagePrintOverflowPage: PROC[dbPage: DBCommon.DBPage, p: LONG POINTER, fullPrint: BOOLEAN] = TRUSTED {debugStream: IO.STREAM_ DBCommon.GetDebugStream[];debugStream.PutF["%bB: a string overflow page with %g words in free vec space",card[dbPage], card[DBStoragePage.WordsLeftOnPage[p]]];IF ~fullPrint THEN RETURN;debugStream.PutF["*n"];FOR slotIndex: CARDINAL IN [1 .. DBStoragePage.HighSlotIndexOfPage[p]] DOdebugStream.PutF["%g: ", card[slotIndex]];SELECT DBStoragePage.TypeOfSlot[p, slotIndex] FROMDBStoragePage.EStringType => PrintEString[p, slotIndex];ENDCASE => PrintUnimplemented[DBStoragePage.TypeOfSlot[p, slotIndex]];ENDLOOP;};--PrintOverflowPagePrintEString: PROC[p: LONG POINTER TO DBStoragePage.VecPage, slotIndex: CARDINAL] = TRUSTED {eString: LONG POINTER TO DBStoragePage.EString _LOOPHOLE[DBStoragePage.VecOfSlot[p, slotIndex]];eStringID: TID _ eString.eStringID;nWordsForText: CARDINAL _ eString.header.length - DBStoragePage.SizeOfNullEString;debugStream: IO.STREAM_ DBCommon.GetDebugStream[];debugStream.PutF["External string descriptor, eStringID: %bB, nBytes: %g*n",card[eStringID], card[2*nWordsForText]];debugStream.PutF["     text: """];FOR i: CARDINAL IN [0..nWordsForText*2) DOdebugStream.PutF["%g", char[eString.text[i]]];ENDLOOP;debugStream.PutF["""*n"];};--PrintEStringPrintLString: PROC[p: LONG POINTER TO DBStoragePage.VecPage, slotIndex: CARDINAL] = TRUSTED {lString: LONG POINTER TO DBStoragePage.LString _LOOPHOLE[DBStoragePage.VecOfSlot[p, slotIndex]];eStringID: TID _ lString.eStringID;DBCommon.GetDebugStream[].PutF["Local string descriptor, bytesInRemString: %g, eStringID: %bB*n",card[lString.bytesInRemString], card[eStringID]];};--PrintLStringPrintTSDict: PROC[p: LONG POINTER TO DBStoragePage.VecPage, slotIndex: CARDINAL] = TRUSTED  {pDict: LONG POINTER TO DBStoragePage.TSDict _LOOPHOLE[DBStoragePage.VecOfSlot[p, slotIndex]];nEntries: CARDINAL _ DBStoragePage.NEntries[pDict];entry: CARDINAL;debugStream: IO.STREAM_ DBCommon.GetDebugStream[];Assert[slotIndex = DBStoragePage.TSDictSlotIndex];debugStream.PutF["Tupleset dictionary containing %g entry(s):*n", card[nEntries]];FOR entry IN [1..nEntries] DOdebugStream.PutF["  %g:", card[entry]];debugStream.PutF["   TuplesetID: %bB,", card[pDict.seq[entry].tuplesetID]];debugStream.PutF[" NextPage: %bB,", card[pDict.seq[entry].next]];debugStream.PutF[" PrevPage: %bB*n", card[pDict.seq[entry].prev]];ENDLOOP;};--PrintTSDictPrintTupleVec: PROC[p: LONG POINTER TO DBStoragePage.VecPage, slotIndex: CARDINAL] = TRUSTED {pTuple: LONG POINTER TO DBStoragePage.TupleBody _LOOPHOLE[DBStoragePage.VecOfSlot[p, slotIndex]];nDataWords: CARDINAL _ pTuple.groupOffset - DBStoragePage.SizeOfNullTuple;groupList: LONG DESCRIPTOR FOR DBStorageGroup.GroupList _DBStorageGroup.GroupListFromTupleBase[pTuple];dataword, entry: CARDINAL;debugStream: IO.STREAM_ DBCommon.GetDebugStream[];debugStream.PutF["Tuplevec of local type %g containing %g words fixed data, %g group list entry(s)*n",card[DBStoragePage.TypeOfSlot[p, slotIndex]], card[nDataWords], card[LENGTH[groupList]]];debugStream.PutF["  data:"];FOR dataword IN [0..nDataWords) DO debugStream.PutF["%b,", card[pTuple.fields[dataword]]]; ENDLOOP;debugStream.PutF["*n"];FOR entry IN [0..LENGTH[groupList]) DOdebugStream.PutF["  %g:", card[entry]];debugStream.PutF["   GroupID: %bB,", card[groupList[entry].groupID]];debugStream.PutF[" FirstTuple: %bB,", card[groupList[entry].firstTID]];debugStream.PutF[" LastTuple: %bB*n", card[groupList[entry].lastTID]];ENDLOOP;};--PrintTupleVecPrintFreeSlot: PROC = {DBCommon.GetDebugStream[].PutF["Free slot*n"];};--PrintFreeSlotPrintUnFreeSlot: PROC = {DBCommon.GetDebugStream[].PutF["UnFree slot (this is an debugStream)*n"];};--PrintUnFreeSlotPrintUnimplemented: PROC[slotType: CARDINAL] = {DBCommon.GetDebugStream[].PutF["Slot type is %g, what does THAT mean?*n", card[slotType]];};--PrintUnimplementedPagetagToRope: PROC [tag: CARDINAL] RETURNS [ROPE] = {RETURN [SELECT tag FROMDBStoragePage.Unused => "unused page",DBStoragePage.Free => "free page",DBStoragePage.AMap => "AMap page",DBStoragePage.Tuple => "user tuple page",DBStoragePage.SystemTuple => "system tuple page",DBStoragePage.BTree => "BTree page",ENDCASE => ERROR];};--PagetagToStringEND.--StoragePrintImplCHANGE LOGCreated by MBrown on May 27, 1980  11:04 AMChanged by MBrown on May 28, 1980  9:59 AMChanged by MBrown on June 1, 1980  12:33 PMChanged by MBrown on June 18, 1980  8:19 PMChanged by MBrown on August 2, 1980  10:37 PMChanged by MBrown on August 23, 1980  10:39 AMChanged by MBrown on August 23, 1980  12:18 PMChanged by Cattell on 30-Dec-81 10:35:01Changed by Willie-Sue on June 24, 1982 12:07 pmChanged by Willie-Sue on June 30, 1982 4:31 pmChanged by Willie-Sue on February 15, 1985  °  File: DBStoragePrintImpl.mesaCopyright c 1985 by Xerox Corporation.  All rights reserved.Last edited by:MBrown on February 27, 1981  3:41 PMCattell on June 16, 1983 3:31 pmWillie-Sue on February 15, 1985 11:29:18 am PSTWidom, September 3, 1985 5:10:59 pm PDTDonahue, May 23, 1986 9:58:27 am PDTMaximum printing with minimum keystrokesStill working on it...Changed for new definition of GroupListOfTuple.Changed for rearrangements in storage level.Changed for change of interface: this module now is to print any type of page, not just vecpages.  Right now it does no more than print a string name for the page tag if the page hassome other type (e.g. AMap, BTree).Types that used to be in DBStoragePrivateB have now moved to separate defs.Added printing of LStrings and EStrings.Changed PF format codes to IOStream format codes.IOStream => IOdebugStream => DBCommon.GetDebugStream[]made Cedar, added tioga formattingÊ  ˜ šœ™Jšœ
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