hfscommon/Misc/FileExtentMapping.c

230 	OSErr				err;
233 	err = noErr;
258 		err = BTSearchRecord(fcb, btIterator, &btRecord, &btRecordSize, btIterator);
260 		if (err == btNotFound && allowPrevious) {
261 			err = BTIterateRecord(fcb, kBTreePrevRecord, btIterator, &btRecord, &btRecordSize);
265 			if (err == (OSErr) fsBTStartOfIterationErr)		//�� fsBTStartOfIterationErr is type unsigned long
266 				err = btNotFound;
268 			if (err == noErr) {
271 					err = btNotFound;
275 		if (err == noErr) {
316 		err = BTSearchRecord(fcb, btIterator, &btRecord, &btRecordSize, btIterator);
318 		if (err == btNotFound && allowPrevious) {
319 			err = BTIterateRecord(fcb, kBTreePrevRecord, btIterator, &btRecord, &btRecordSize);
323 			if (err == (OSErr) fsBTStartOfIterationErr)		//�� fsBTStartOfIterationErr is type unsigned long
324 				err = btNotFound;
326 			if (err == noErr) {
329 					err = btNotFound;
333 		if (err == noErr) {
346 	return err;
361 	OSErr  err;
363 	err = noErr;
396 		err = HFSPlusToHFSExtents(extents, data);
407 	if (err == noErr)
408 		err = BTInsertRecord(GetFileControlBlock(vcb->extentsRefNum), btIterator, &btRecord, btRecordSize);
410 	if (err == noErr)
418 	return err;
429 	OSErr				err;
431 	err = noErr;
459 	err = BTDeleteRecord(GetFileControlBlock(vcb->extentsRefNum), btIterator);
464 	return err;
485 	OSErr				err;
503 	err = SearchExtentFile(vcb, fcb, offset, &foundKey, foundData, &foundIndex, &hint, &nextFABN);
504 	if (err == noErr) {
509 	if (err != noErr)
511 		return err;
582 	OSErr	err = noErr;
605 		err = BlockDeallocate( vcb, extentRecord[extentIndex].startBlock, numAllocationBlocks , 0);
606 		if ( err != noErr )
612 	return( err );
638 	OSErr				err;
656 		err = FindExtentRecord(vcb, forkType, fileID, startBlock, false, &key, extents, &hint);
657 		if (err != noErr) {
658 			if (err == btNotFound)
659 				err = noErr;
663 		err = ReleaseExtents( vcb, extents, &numberExtentsReleased, &releasedLastExtent );
664 		if (err != noErr) break;
666 		err = DeleteExtentRecord(vcb, forkType, fileID, startBlock);
667 		if (err != noErr) break;
674 	return err;
692 	OSErr				err;
697 	err = ReleaseExtents( vcb, catalogExtents, &numReleasedAllocationBlocks, &releasedLastExtent );
699 	if (err == noErr && !releasedLastExtent)
700 		err = TruncateExtents(vcb, forkType, fileID, numReleasedAllocationBlocks, recordDeleted);
702 	return( err );
714 	OSErr	err;
720 	err = BTFlushPath(fcb);
723 	if ( err == noErr )
730 		//	err = FlushVolumeControlBlock( vcb );
734 	return( err );
947 	OSErr				err;
1069 		err = dskFulErr;
1077 	err = SearchExtentFile(vcb, fcb, peof-1, &foundKey, foundData, &foundIndex, &hint, &nextBlock);
1078 	if (err == noErr) {
1085 	if (err != fxRangeErr)		// Any real error?
1117 	err = noErr;
1167 			err = dskFulErr;
1170 				err = dskFulErr;
1172 				err = BlockAllocate(
1183 		if (err == dskFulErr) {
1188 				err = noErr;
1193 				err = noErr;
1196 				err = noErr;
1201 		if (err == noErr) {
1212 				err = UpdateExtentRecord(vcb, fcb, 0, &foundKey, foundData, hint);
1213 				if (err != noErr) break;
1225 						err = dskFulErr;		// Oops.  Can't extend extents file past first record.
1250 					err = CreateExtentRecord(vcb, &foundKey, foundData, &hint);
1251 					if (err == fxOvFlErr) {
1256 						err = dskFulErr;
1258 					if (err != noErr) break;
1266 					err = UpdateExtentRecord(vcb, fcb, 0, &foundKey, foundData, hint);
1267 					if (err != noErr) break;
1291 					err = dskFulErr;
1295 	} while (err == noErr && bytesToAdd);
1318 	return err;
1321 	err = fileBoundsErr;
1348 	OSErr				err;
1394 		err = fileBoundsErr;
1428 		err = DeallocateFork(vcb, fileid, forkType, fcb->fcbExtents, &recordDeleted);
1429 		if (err != noErr) goto ErrorExit;	//	got some error, so return it
1432 		if (err == noErr) {
1447 	err = SearchExtentFile(vcb, fcb, peof-1, &key, extentRecord, &extentIndex, &hint, &extentNextBlock);
1448 	if (err != noErr) goto ErrorExit;
1462 			err = BlockDeallocate(vcb, startBlock, numBlocks, 0);
1463 			if (err != noErr) goto ErrorExit;
1486 		err = BlockDeallocate(vcb, extentRecord[extentIndex].startBlock, numBlocks, 0);
1487 		if (err != noErr) goto ErrorExit;
1504 		err = UpdateExtentRecord(vcb, fcb, deleted, &key, extentRecord, hint);
1505 		if (err != noErr) goto ErrorExit;
1514 		err = TruncateExtents(vcb, forkType, fileid, nextBlock, &recordDeleted);
1521 	return err;
1702 	OSErr	err = noErr;
1760 		err = fxRangeErr;
1763 	return( err );
1804 	OSErr				err;
1816     err = SearchExtentRecord( vcb, filePositionBlock, foundExtentData, 0,
1819 	if( err == noErr ) {
1834 		err = fxRangeErr;		// There are no more extents, so must be beyond PEOF
1843 	err = FindExtentRecord(vcb, FORK_IS_RSRC(fcb) ? kResourceForkType : kDataForkType,
1847 	if (err == btNotFound) {
1854 		err = GetFCBExtentRecord(fcb, foundExtentData);
1866 	if (err == noErr) {
1868 		err = SearchExtentRecord(vcb, filePositionBlock, foundExtentData, foundExtentKey->startBlock,
1873 	return err;
1903     OSErr err = noErr;
1955 			err = BTSearchRecord(btFCB, btIterator, &btRecord, &btRecordSize, btIterator);
1957 			if (err == noErr)
1958 				err = HFSPlusToHFSExtents(extentData, (HFSExtentDescriptor *)&foundData);
1960 			if (err == noErr)
1961 				err = BTReplaceRecord(btFCB, btIterator, &btRecord, btRecordSize);
1976 			err = BTSearchRecord(btFCB, btIterator, &btRecord, &btRecordSize, btIterator);
1978 			if (err == noErr) {
1980 				err = BTReplaceRecord(btFCB, btIterator, &btRecord, btRecordSize);
1989 	return err;
1999 	OSErr	err;
2001 	err = noErr;
2014 			err = fsDSIntErr;
2018 	return err;