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- /*
- * $RCSfile: redoCreateIndex.c,v $
- * $Revision: 1.1.1.1 $
- * $Date: 1996/05/04 21:55:58 $
- */
- /**********************************************************************
- * EXODUS Database Toolkit Software
- * Copyright (c) 1991 Computer Sciences Department, University of
- * Wisconsin -- Madison
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * THE COMPUTER SCIENCES DEPARTMENT OF THE UNIVERSITY OF WISCONSIN --
- * MADISON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION.
- * THE DEPARTMENT DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES
- * WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * The EXODUS Project Group requests users of this software to return
- * any improvements or extensions that they make to:
- *
- * EXODUS Project Group
- * c/o David J. DeWitt and Michael J. Carey
- * Computer Sciences Department
- * University of Wisconsin -- Madison
- * Madison, WI 53706
- *
- * or exodus@cs.wisc.edu
- *
- * In addition, the EXODUS Project Group requests that users grant the
- * Computer Sciences Department rights to redistribute these changes.
- **********************************************************************/
-
-
- #include "sysdefs.h"
- #include "ess.h"
- #include "checking.h"
- #include "trace.h"
- #include "error.h"
- #include "list.h"
- #include "tid.h"
- #include "io.h"
- #include "lock.h"
- #include "object.h"
- #include "msgdefs.h"
- #include "thread.h"
- #include "latch.h"
- #include "semaphore.h"
- #include "link.h"
- #include "lsn.h"
- #include "bf.h"
- #include "log.h"
- #include "pool.h"
- #include "volume.h"
- #include "logrecs.h"
- #include "trans.h"
- #include "openlog.h"
- #include "bitmap.h"
- #include "bf_extfuncs.h"
- #include "bm_extfuncs.h"
- #include "trans_extfuncs.h"
- #include "redo_intfuncs.h"
- #include "redo_extfuncs.h"
- #include "logaction.h"
- #include "util_funcs.h"
- #include "thread_globals.h"
- #include "bf_globals.h"
- #include "log_globals.h"
- #include "log_extfuncs.h"
- #include "sm_extfuncs.h"
- #include "sm_macro.h"
- #include "bf_macro.h"
-
- static int check(LOGRECORDHDR* record, GROUPLINK** gLinkPtr);
-
- void
- redoCreateIndex (
-
- LOGRECORDHDR *record
- )
- {
- INDEXDESC* desc;
- GROUPLINK* gLink;
- PID* pid;
- INDEXDESCPAGE* ip;
- TRPRINT(TR_IO|TR_LOG, TR_LEVEL_1, ("lsn:%d", record->recordLSN.offset));
-
- pid = & record->actionPid;
- TRPRINT(TR_IO|TR_LOG, TR_LEVEL_2, ("pid:%d", pid->page));
-
- desc = (INDEXDESC*) GET_LOG_IMAGE(record, 0);
-
- /*
- * Check to see if the operation needs to be done
- */
- if (!check(record, &gLink)) {
- TRPRINT(TR_RECOVER, TR_LEVEL_2, ("dirty page not present"));
- return;
- }
-
- CHECK_GROUPLINK_MAGIC(gLink);
-
- ip = (INDEXDESCPAGE*) gLink->bufFrame;
-
- /*
- * Redo
- */
- ip->desc = *desc;
- ip->magic = NDXMAGIC;
-
- ip->lrc = record->actionLRC;
-
- signalSemaphore(&gLink->pageHash->semaphore);
-
- bf_UnfixPage(gLink, BF_DEFAULT, TRUE);
- }
-
-
-
- static int check(LOGRECORDHDR* record, GROUPLINK** gLinkPtr)
- {
- PID* pid = &record->actionPid;
- INDEXDESCPAGE* ip;
- DIRTYPAGEINFO* dirtyInfo = searchDirtyPageTable(pid);
- if ( ! dirtyInfo) {
- return FALSE;
- }
-
- if ( (compareLRC(&record->actionLRC, &dirtyInfo->lrc) < 0) ||
- (compareLSN(&(record->recordLSN), & (dirtyInfo->lsn)) < 0)) {
- return FALSE;
- }
-
- SM_ASSERT(LEVEL_3, compareLSN(&record->recordLSN, &dirtyInfo->lsn) >= 0);
-
- if ((*gLinkPtr = bf_ReadPage(UserBufGroup, pid,
- INDEXDESC_PAGE2SIZE, BF_SEM)) == NULL) {
- SM_ERROR(TYPE_FATAL, esmINTERNAL);
- }
-
- ip = (INDEXDESCPAGE*) (*gLinkPtr)->bufFrame;
-
- if (compareLRC( &record->actionLRC, & ip->lrc) <= 0) {
- dirtyInfo->lrc = ip->lrc;
- signalSemaphore( & (*gLinkPtr)->pageHash->semaphore);
- bf_UnfixPage(*gLinkPtr, BF_DEFAULT, FALSE);
- return FALSE;
- }
-
- DEPEND_LOG((*gLinkPtr)->pageHash, 0, & record->recordLSN,
- & record->actionLRC);
-
- #ifdef DEBUG
- #ifdef INIT_LRC_IS_LSN
- #else
- LRC tempLRC = ip->lrc;
- INCREMENT_LRC(&tempLRC);
- SM_ASSERT(LEVEL_1, compareLRC(&record->actionLRC, &tempLRC) == 0);
- #endif
- #endif
-
- return TRUE;
- }
-