Esempi in C++ (Cpp) per fdictGetContainer

Linguaggio di programmazione: C++ (Cpp)

Metodo/funzione: fdictGetContainer

Esempi su hotexamples.com: 8

fdictGetContainer in C++ (Cpp): 8 esempi trovati. Questi sono i migliori esempi reali in C++ (Cpp) per fdictGetContainer, estratti da progetti open source. Li puoi valutare, per aiutarci a migliorare la qualità dei nostri esempi.

Esempio n. 1

Mostra file

File: flindex.cpp Progetto: Tyrion-Lannister-274AL/flaim

/****************************************************************************
Desc : Suspend the selected index from doing any key updates on records
		 that are equal or higher than the next record ID value
		 in the container that the index references.  If the index is offline
		 then the background process will be suspended.  If the index is
		 online then it will be suspended.  If the index is already 
		 suspended FERR_OK will be returned.  A suspended index is not
		 persistant if the database goes down.  
Notes: An update transaction will be started if necessary.
****************************************************************************/
FLMEXP RCODE FLMAPI FlmIndexSuspend(
	HFDB			hDb,
	FLMUINT		uiIndexNum)
{
	RCODE			rc = FERR_OK;
	FDB *			pDb = (FDB *)hDb;
	IXD *			pIxd;
	FLMUINT		uiHighestRecId;
	FLMUINT		uiContainerNum;
	FLMBOOL		bSuspended;
	FLMBOOL		bStartedTrans = FALSE;
	LFILE *		pLFile;

	if( IsInCSMode( hDb))
	{
		fdbInitCS( pDb);

		CS_CONTEXT *		pCSContext = pDb->pCSContext;
		FCL_WIRE				Wire( pCSContext, pDb);

		if( !pCSContext->bConnectionGood)
		{
			rc = RC_SET( FERR_BAD_SERVER_CONNECTION);
			goto Transmission_Error;
		}

		if( RC_BAD( rc = Wire.sendOp(
			FCS_OPCLASS_INDEX, FCS_OP_INDEX_SUSPEND)))
		{
			goto Exit;
		}

		if (RC_BAD( rc = Wire.sendNumber( WIRE_VALUE_INDEX_ID, uiIndexNum)))
		{
			goto Transmission_Error;
		}

		if( RC_BAD( rc = Wire.sendTerminate()))
		{
			goto Transmission_Error;
		}

		// Read the response
	
		if (RC_BAD( rc = Wire.read()))
		{
			goto Transmission_Error;
		}

		if( RC_BAD( rc = Wire.getRCode()))
		{
			goto Exit;
		}

		goto Exit;

Transmission_Error:
		pCSContext->bConnectionGood = FALSE;
		goto Exit;
	}

	if (RC_BAD( rc = fdbInit( pDb, FLM_UPDATE_TRANS,
		FDB_TRANS_GOING_OK, FLM_AUTO_TRANS | FLM_NO_TIMEOUT, &bStartedTrans)))
	{
		goto Exit;
	}

	// See if the index is valid

	if( RC_BAD( rc = fdictGetIndex(
		pDb->pDict,
		pDb->pFile->bInLimitedMode,
		uiIndexNum, NULL, &pIxd, TRUE)))
	{
		goto Exit;
	}

	if( pIxd->uiFlags & IXD_UNIQUE)
	{
		// Can't suspend unique indexes
		rc = RC_SET( FERR_ILLEGAL_OP);
		goto Exit;
	}

	if( pIxd->uiFlags & IXD_SUSPENDED)
	{
		// Index is already suspended.
		goto Exit;
	}

	// Get the current index info from the tracker

	if( RC_BAD( rc = flmGetIxTrackerInfo( pDb,
		uiIndexNum, &uiContainerNum, &uiHighestRecId, NULL, &bSuspended)))
	{
		goto Exit;
	}
	flmAssert( !bSuspended);

	// Get information about the container(s) being indexed

	if( !(pIxd->uiFlags & IXD_OFFLINE))
	{
		if ((uiContainerNum = pIxd->uiContainerNum) == 0)
		{
			// The index was on-line and up-to-date.  For an index that
			// crosses all containers, we will suspend on the highest DRN of
			// the FLM_DATA_CONTAINER.

			uiContainerNum = FLM_DATA_CONTAINER;
		}

		if( RC_BAD( rc = fdictGetContainer( pDb->pDict, 
			uiContainerNum, &pLFile)))
		{
			goto Exit;
		}

		uiHighestRecId = 0;
		if( RC_BAD( rc = FSGetNextDrn( pDb, pLFile, FALSE, &uiHighestRecId)))
		{
			goto Exit;
		}

		// Decrement uiHighestRecId by 1 to correctly reflect the
		// last record that was indexed.

		flmAssert( uiHighestRecId != 0);
		uiHighestRecId--;
	}

	// There may be a background thread still assigned to the
	// index even though the index may be "on-line."  This is because
	// the background thread may have just commited a transaction that
	// transitioned the index from off-line to on-line, but the thread
	// has not yet exited (even though it will not do any more work
	// to update the index).  We want to wait for the thread to terminate
	// before our transaction is allowed to commit.  This is so that if
	// we immediately call resume, it won't find the yet-to-terminate
	// thread still running in the background.

	if( !(pDb->uiFlags & FDB_REPLAYING_RFL))
	{
		if( RC_BAD( rc = flmAddToStopList( pDb, uiIndexNum)))
		{
			goto Exit;
		}
	}

	flmAssert( uiContainerNum != 0xFFFFFFFF);

	if( RC_BAD( rc = flmSetIxTrackerInfo( pDb, 
		uiIndexNum, uiContainerNum, uiHighestRecId, 
		TRANS_ID_OFFLINE, TRUE)))
	{
		goto Exit;
	}

	// Create a new dictionary

	if( !(pDb->uiFlags & FDB_UPDATED_DICTIONARY))
	{
		if( RC_BAD( rc = fdictCloneDict( pDb)))
		{
			goto Exit;
		}

		// Get a pointer to the new IXD

		if( RC_BAD( rc = fdictGetIndex( pDb->pDict,
			pDb->pFile->bInLimitedMode,
			uiIndexNum, NULL, &pIxd, TRUE)))
		{
			goto Exit;
		}
	}

	// Update the IXDs flags so that the current update
	// transaction will see the correct state of the index.
	// Old read transactions will continue to use a prior
	// version of the dictionary.

	pIxd->uiFlags |= (IXD_SUSPENDED | IXD_OFFLINE);

	// Log the suspend packet to the RFL

	if( RC_BAD( rc = pDb->pFile->pRfl->logIndexSuspendOrResume( 
		uiIndexNum, RFL_INDEX_SUSPEND_PACKET)))
	{
		goto Exit;
	}

Exit:

	if( bStartedTrans)
	{
		rc = flmEndAutoTrans( pDb, rc);
	}

	flmExit( FLM_INDEX_SUSPEND, pDb, rc);
	return( rc);
}

Esempio n. 2

Mostra file