Exemplo n.º 1
0
/*******************************************************************************
Desc:	Copies a database, including roll-forward log files.
*******************************************************************************/
FLMEXP RCODE FLMAPI FlmDbCopy(
	const char *		pszSrcDbName,
	const char *		pszSrcDataDir,
	const char *		pszSrcRflDir,
	const char *		pszDestDbName,
	const char *		pszDestDataDir,
	const char *		pszDestRflDir,
	STATUS_HOOK			fnStatusCallback,
	void *				UserData)
{
	RCODE				rc = FERR_OK;
	FLMBYTE *		pucLastCommittedLogHdr;
	HFDB				hDb = HFDB_NULL;
	FDB *				pDb;
	FLMBOOL			bDbLocked = FALSE;
	FLMUINT			uiDbVersion;

	// Make sure the destination database is closed

	if (RC_BAD( rc = FlmConfig( FLM_CLOSE_FILE,
		(void *)pszDestDbName, (void *)pszDestDataDir)))
	{
		goto Exit;
	}
	
	gv_FlmSysData.pFileHdlCache->closeUnusedFiles();	

	// Open the database so we can force a checkpoint.

	if (RC_BAD( rc = FlmDbOpen( pszSrcDbName, pszSrcDataDir, pszSrcRflDir,
								0, NULL, &hDb)))
	{
		goto Exit;
	}
	pDb = (FDB *)hDb;

	// Need to lock the database, because we want to do a checkpoint
	// and then the copy immediately after without letting other
	// threads have the opportunity to get in and update the
	// database.

	if (RC_BAD( rc = FlmDbLock( hDb, FLM_LOCK_EXCLUSIVE, 0, FLM_NO_TIMEOUT)))
	{
		goto Exit;
	}
	bDbLocked = TRUE;

	// Force a checkpoint

	if (RC_BAD( rc = FlmDbCheckpoint( hDb, FLM_NO_TIMEOUT)))
	{
		goto Exit;
	}

	pucLastCommittedLogHdr = &pDb->pFile->ucLastCommittedLogHdr[ 0];

	// Get the low and high RFL log file numbers from the log
	// header.

	uiDbVersion = pDb->pFile->FileHdr.uiVersionNum;

	// Once we get this far, we have exclusive access to the database
	// and we have forced a checkpoint.  The database's contents are
	// guaranteed to be on disk at this point, and they will not
	// change.

	rc = flmCopyDb( uiDbVersion, pszSrcDbName, pszSrcDataDir, pszSrcRflDir,
						pszDestDbName, pszDestDataDir, pszDestRflDir,
						fnStatusCallback, UserData);

Exit:

	// Unlock and close the database

	if (bDbLocked)
	{
		FlmDbUnlock( hDb);
	}

	if (hDb != HFDB_NULL)
	{
		(void)FlmDbClose( &hDb);
		(void)FlmConfig( FLM_CLOSE_FILE, (void *)pszSrcDbName,
								(void *)pszSrcDataDir);
	}
	return( rc);
}
Exemplo n.º 2
0
/********************************************************************
Desc: Loads the database with objects.
*********************************************************************/
RCODE gigaLoadDatabase( void)
{
	RCODE				rc = NE_FLM_OK;
	FLMBOOL			bTransActive = FALSE;
	FLMBOOL			bCommitTrans = FALSE;
	FLMUINT			uiObjsInTrans = 0;
	FLMUINT			uiChar = 0;
	FLMUINT			bSuspend = FALSE;
	FlmRecord *		pNewRec = NULL;

	// Set cache size, if specified on command line.

	if( gv_uiCacheSize)
	{
		if( RC_BAD( rc = FlmSetHardMemoryLimit( 0, FALSE, 0,
			gv_uiCacheSize, 0)))
		{
			gigaOutputRcErr( "setting cache size", rc);
			goto Exit;
		}
	}

	// Set block cache percentage, if it is not default.
	
	if( gv_uiBlockCachePercentage != 50)
	{
		if( RC_BAD( rc = FlmConfig( FLM_BLOCK_CACHE_PERCENTAGE,
			(void *)gv_uiBlockCachePercentage, (void *)0)))
		{
			gigaOutputRcErr( "setting block cache percentage", rc);
			goto Exit;
		}
	}

	// Set the maximum and low dirty cache, if one was specified

	if( gv_uiMaxDirtyCache)
	{
		if( RC_BAD( rc = FlmConfig( FLM_MAX_DIRTY_CACHE,
			(void *)gv_uiMaxDirtyCache, (void *)gv_uiLowDirtyCache)))
		{
			gigaOutputRcErr( "setting maximum dirty cache", rc);
			goto Exit;
		}
	}

	// Set checkpoint interval, if one is specified.

	if( gv_uiCPInterval != 0xFFFFFFFF)
	{
		if( RC_BAD( rc = FlmConfig( FLM_MAX_CP_INTERVAL, 
			(void *)gv_uiCPInterval, (void *)0)))
		{
			gigaOutputRcErr( "setting checkpoint interval", rc);
			goto Exit;
		}
	}
	
	// Enable/Disable direct I/O
	
	if( RC_BAD( rc = FlmConfig( FLM_DIRECT_IO_STATE, 
		(void *)!gv_bDisableDirectIO, NULL)))
	{
		goto Exit;
	}

	// Create the database.
	
	(void)FlmDbRemove( gv_szDibName, gv_szDataDir, gv_szRflDir, TRUE);
	
	if( RC_BAD( rc = FlmDbCreate( gv_szDibName, gv_szDataDir, gv_szRflDir, 
		NULL, gv_pszGigaDictionary, NULL, &gv_hDb)))
	{
		gigaOutputRcErr( "creating database", rc);
		goto Exit;
	}
	
	if( RC_BAD( rc = FlmDbConfig( gv_hDb, 
		FDB_RFL_FOOTPRINT_SIZE, (void *)(512 * 1024 * 1024), NULL)))
	{
		goto Exit;
	}

	if( RC_BAD( rc = FlmDbConfig( gv_hDb, 
		FDB_RBL_FOOTPRINT_SIZE, (void *)(512 * 1024 * 1024), NULL)))
	{
		goto Exit;
	}

	// Create the display

	gv_uiTotalLoaded = 0;
	gv_ui10SecTotal = 0;
	
	f_mutexLock( gv_hWindowMutex);
	FTXWinClear( gv_pWindow);
	f_mutexUnlock( gv_hWindowMutex);

	gigaOutputLabel( MAX_CACHE_ROW, "Maximum Cache Size (bytes)");
	gigaOutputLabel( USED_CACHE_ROW, "Cache Used (bytes)");
	gigaOutputLabel( ITEMS_CACHED_ROW, "Cache Used (items)");
	gigaOutputLabel( DIRTY_CACHE_ROW, "Dirty Cache (bytes)");
	gigaOutputLabel( LOG_CACHE_ROW, "Log Cache (bytes)");
	gigaOutputLabel( FREE_CACHE_ROW, "Free Cache (bytes)");
	gigaOutputLabel( CP_STATE_ROW, "Checkpoint State");
	
	gigaUpdateMemInfo();

	gigaOutputLabel( DB_NAME_ROW, "Database Name");
	gigaOutputStr( DB_NAME_ROW, gv_szDibName);

	gigaOutputLabel( TOTAL_TO_LOAD_ROW, "Total To Load");
	gigaOutputUINT( TOTAL_TO_LOAD_ROW, gv_uiTotalToLoad);

	gigaOutputLabel( TRANS_SIZE_ROW, "Transaction Size");
	gigaOutputUINT( TRANS_SIZE_ROW, gv_uiTransSize);

	gigaOutputLabel( TOTAL_LOADED_ROW, "Total Loaded");
	gigaOutputUINT( TOTAL_LOADED_ROW, gv_uiTotalLoaded);

	gigaOutputLabel( ADDS_PER_SEC_CURRENT, "Adds/Sec. (10 secs)");
	gigaOutputUINT( ADDS_PER_SEC_CURRENT, 0);

	gigaOutputLabel( ADDS_PER_SEC_OVERALL, "Adds/Sec. (overall)");
	gigaOutputUINT( ADDS_PER_SEC_OVERALL, 0);

	gigaOutputLabel( ELAPSED_TIME_ROW, "Elapsed Time");
	gigaOutputStr( ELAPSED_TIME_ROW, "<none>");

	if( RC_BAD( rc = gigaStartScreenThread()))
	{
		goto Exit;
	}
	
	gv_ui10SecStartTime = gv_uiStartTime = FLM_GET_TIMER();
	gv_ui10Secs = FLM_SECS_TO_TIMER_UNITS( 10);
	gv_ui1Sec = FLM_SECS_TO_TIMER_UNITS( 1);
	
	for( ;;)
	{
		// See if we have been told to shut down, or if the user 
		// has pressed escape.

		if( gv_bShutdown)
		{
			break;
		}

		// Every 127 objects, see if character was pressed and update 
		// count on screen.

		if( (gv_uiTotalLoaded & 0x7F) == 0)
		{
			f_yieldCPU();
			
			if( (uiChar = gigaSeeIfQuit()) != 0)
			{
				if( uiChar == FKB_ESCAPE)
				{
					break;
				}
				else if( uiChar == 's' || uiChar == 'S')
				{
					bSuspend = TRUE;
				}
			}

			// Check for other keyboard options
		}
		else if( (gv_uiTotalLoaded & 0x7) == 0)
		{
			FLMUINT		uiElapsedTime;
			FLMUINT		uiCurrTime;

			uiCurrTime = FLM_GET_TIMER();

			// If at least 10 seconds have elapsed, redisplay the average
			// rate values.

			if( (uiElapsedTime = FLM_ELAPSED_TIME( uiCurrTime,
				gv_ui10SecStartTime)) >= gv_ui10Secs)
			{
				gigaUpdateLoadTimes();
			}
		}

		// Start a transaction, if one is not going.

		if( !bTransActive)
		{
			if( bSuspend)
			{
				uiChar = gigaGetInput(
					"Load suspended, press any character to continue loading: ",
					NULL);
				bSuspend = FALSE;
			}
			
			if( RC_BAD( rc = gigaStartTrans()))
			{
				goto Exit;
			}
			
			bTransActive = TRUE;
			bCommitTrans = FALSE;
			uiObjsInTrans = 0;
		}

		// Increment the load counters and determine if this will be the
		// last object of the transaction.

		gv_uiTotalLoaded++;
		uiObjsInTrans++;
		
		if( uiObjsInTrans == gv_uiTransSize ||
			 gv_uiTotalLoaded == gv_uiTotalToLoad)
		{
			bCommitTrans = TRUE;
		}

		// Create a new object.

		if( RC_BAD( rc = gigaMakeNewRecord( &pNewRec)))
		{
			goto Exit;
		}
		
		if( RC_BAD( rc = FlmRecordAdd( gv_hDb, FLM_DATA_CONTAINER, 
			NULL, pNewRec, FLM_DONT_INSERT_IN_CACHE)))
		{
			goto Exit;
		}
		
		// Commit when we reach the transaction size or the total to load.
		// NOTE: The bCommitTrans flag is set above.

		if( bCommitTrans)
		{
			if( RC_BAD( rc = gigaCommitTrans()))
			{
				goto Exit;
			}
			
			bTransActive = FALSE;
		}

		// See if we are done.

		if( gv_uiTotalLoaded == gv_uiTotalToLoad)
		{
			flmAssert( !bTransActive);
			break;
		}
	}

Exit:

	if( pNewRec)
	{
		pNewRec->Release();
	}

	if( bTransActive)
	{
		(void)FlmDbTransAbort( gv_hDb);
	}
	
	if( gv_hDb != HFDB_NULL)
	{
		FlmDbCheckpoint( gv_hDb, FLM_NO_TIMEOUT);
		gigaStopScreenThread();
		FlmDbClose( &gv_hDb);

		// This will cause us to wait for the last checkpoint
		// to finish.

		(void)FlmConfig( FLM_CLOSE_FILE, (void *)gv_szDibName,
								(void *)gv_szDataDir);
	}
	
	gigaUpdateLoadTimes();
	gigaStopScreenThread();
	f_threadDestroy( &gv_pIxManagerThrd);
	
	return( rc);
}