file_systems/ext2/DataStream.cpp

180 DataStream::Enlarge(Transaction& transaction, off_t& numBlocks)
192 		status = _AddForDirectBlocks(transaction, targetBlocks);
210 		status = _AddForIndirectBlock(transaction, targetBlocks);
228 		status = _AddForDoubleIndirectBlock(transaction, targetBlocks);
248 	return _AddForTripleIndirectBlock(transaction, targetBlocks);
253 DataStream::Shrink(Transaction& transaction, off_t& numBlocks)
268 		status = _RemoveFromDirectBlocks(transaction, numBlocks);
279 			return _PerformFree(transaction);
284 		status = _RemoveFromIndirectBlock(transaction, numBlocks);
295 			return _PerformFree(transaction);
300 		status = _RemoveFromDoubleIndirectBlock(transaction, numBlocks);
311 			return _PerformFree(transaction);
315 	status = _RemoveFromTripleIndirectBlock(transaction, numBlocks);
325 	return _PerformFree(transaction);
372 DataStream::_GetBlock(Transaction& transaction, uint32& blockNum)
381 		status_t status = fVolume->AllocateBlocks(transaction, 1, fWaiting,
405 DataStream::_PrepareBlock(Transaction& transaction, uint32* pos,
412 		status_t status = _GetBlock(transaction, blockNum);
428 DataStream::_AddBlocks(Transaction& transaction, uint32* block, off_t _count)
435 		status_t status = _GetBlock(transaction, blockNum);
450 DataStream::_AddBlocks(Transaction& transaction, uint32* block, off_t start,
458 	status_t status = _PrepareBlock(transaction, block, blockNum, clear);
463 	uint32* childBlock = (uint32*)cached.SetToWritable(transaction, blockNum,
469 		return _AddBlocks(transaction, &childBlock[start], end - start);
490 		return _AddBlocks(transaction, &childBlock[elementPos],
495 		status = _AddBlocks(transaction, &childBlock[elementPos],
506 		status = _AddBlocks(transaction, &childBlock[elementPos], 0,
517 		status = _AddBlocks(transaction, &childBlock[elementPos], 0,
530 DataStream::_AddForDirectBlocks(Transaction& transaction, uint32 numBlocks)
537 	return _AddBlocks(transaction, direct, end - fNumBlocks);
542 DataStream::_AddForIndirectBlock(Transaction& transaction, uint32 numBlocks)
553 	return _AddBlocks(transaction, indirect, start, end, 0);
558 DataStream::_AddForDoubleIndirectBlock(Transaction& transaction,
570 	return _AddBlocks(transaction, doubleIndirect, start, end, 1);
575 DataStream::_AddForTripleIndirectBlock(Transaction& transaction,
584 	return _AddBlocks(transaction, tripleIndirect, start, end, 2);
589 DataStream::_PerformFree(Transaction& transaction)
598 		status = fVolume->FreeBlocks(transaction, fFreeStart, fFreeCount);
608 DataStream::_MarkBlockForRemoval(Transaction& transaction, uint32* block)
619 			status_t status = fVolume->FreeBlocks(transaction, fFreeStart,
636 DataStream::_FreeBlocks(Transaction& transaction, uint32* block, uint32 _count)
642 		status_t status = _MarkBlockForRemoval(transaction, block);
657 DataStream::_FreeBlocks(Transaction& transaction, uint32* block, off_t start,
667 		status_t status = _MarkBlockForRemoval(transaction, block);
673 	uint32* childBlock = (uint32*)cached.SetToWritable(transaction, blockNum);
678 		return _FreeBlocks(transaction, &childBlock[start], end - start);
697 		return _FreeBlocks(transaction, &childBlock[elementPos],
704 		status = _FreeBlocks(transaction, &childBlock[elementPos],
713 		status = _FreeBlocks(transaction, &childBlock[elementPos], 0,
722 		status = _FreeBlocks(transaction, &childBlock[elementPos], 0,
731 DataStream::_RemoveFromDirectBlocks(Transaction& transaction, uint32 numBlocks)
738 	return _FreeBlocks(transaction, direct, end - numBlocks);
743 DataStream::_RemoveFromIndirectBlock(Transaction& transaction, uint32 numBlocks)
756 	return _FreeBlocks(transaction, indirect, start, end, freeAll, 0);
761 DataStream::_RemoveFromDoubleIndirectBlock(Transaction& transaction,
775 	return _FreeBlocks(transaction, doubleIndirect, start, end, freeAll, 1);
780 DataStream::_RemoveFromTripleIndirectBlock(Transaction& transaction,
792 	return _FreeBlocks(transaction, tripleIndirect, start, end, freeAll, 2);