file_systems/bfs/Inode.cpp

714 	const char* name, uint32 type, off_t pos, const uint8* data, size_t length,
724 	uint32 spaceNeeded = sizeof(small_data) + nameLength + 3 + pos + length + 1;
751 		if (item->data_size > pos + length
753 			|| ((uint8*)last + pos + length - item->DataSize())
757 			if (force && ((uint8*)last + pos + length - item->DataSize())
761 				uint32 needed = pos + length - item->DataSize() -
786 			if (pos + length != item->DataSize()) {
803 				item->data_size = HOST_ENDIAN_TO_BFS_INT16(pos + length);
808 			if ((uint64)oldDataSize < (uint64)pos) {
810 				memset(item->Data() + oldDataSize, 0, pos - oldDataSize);
812 			if (user_memcpy(item->Data() + pos, data, length) < B_OK)
814 			item->Data()[pos + length] = '\0';
847 	if (user_memcpy(item->Data() + pos, data, length) < B_OK)
1044 Inode::ReadAttribute(const char* name, int32 type, off_t pos, uint8* buffer,
1047 	if (pos < 0)
1048 		pos = 0;
1062 			if (pos >= smallData->data_size) {
1066 			if (length + pos > smallData->DataSize())
1067 				length = smallData->DataSize() - pos;
1069 			status_t error = user_memcpy(buffer, smallData->Data() + pos,
1080 		status = attribute->ReadAt(pos, (uint8*)buffer, _length);
1095 	off_t pos, const uint8* buffer, size_t* _length, bool* _created)
1097 	if (pos < 0)
1146 		status = _AddSmallData(transaction, node, name, type, pos, buffer,
1201 		status = _AddSmallData(transaction, node, name, type, pos, buffer,
1216 				status = attribute->WriteAt(transaction, pos, buffer,
1233 	// TODO: find a better way than this "pos" thing (the begin of the old key
1235 	if (status == B_OK && pos == 0) {
1248 		if (pos < length || (uint64)pos < (uint64)oldLength) {
1464 /*!	Finds the block_run where "pos" is located in the data_stream of
1467 	of the block_run returned; so "pos - offset" is for the block_run
1468 	what "pos" is for the whole stream.
1469 	The caller has to make sure that "pos" is inside the stream.
1472 Inode::FindBlockRun(off_t pos, block_run& run, off_t& offset)
1478 	if (data->MaxIndirectRange() > 0 && pos >= data->MaxDirectRange()) {
1480 			&& pos >= data->MaxIndirectRange()) {
1493 			off_t start = pos - data->MaxIndirectRange();
1538 					if (runBlockEnd > pos) {
1560 			if (runBlockEnd > pos) {
1575 Inode::ReadAt(off_t pos, uint8* buffer, size_t* _length)
1577 	return file_cache_read(FileCache(), NULL, pos, buffer, _length);
1582 Inode::WriteAt(Transaction& transaction, off_t pos, const uint8* buffer,
1596 	bool changeSize = (uint64)pos + (uint64)length > (uint64)Size();
1598 	// set/check boundaries for pos/length
1599 	if (pos < 0)
1613 		&& (uint64)pos + (uint64)length > (uint64)Size()) {
1621 	if ((uint64)pos + (uint64)length > (uint64)oldSize) {
1623 		status_t status = SetFileSize(transaction, pos + length);
1645 	if (oldSize < pos)
1646 		FillGapWithZeros(oldSize, pos);
1653 	status_t status = file_cache_write(FileCache(), NULL, pos, buffer, _length);
1669 Inode::FillGapWithZeros(off_t pos, off_t newSize)
1671 	while (pos < newSize) {
1673 		if (newSize > pos + 1024 * 1024 * 1024)
1676 			size = newSize - pos;
1678 		status_t status = file_cache_write(FileCache(), NULL, pos, NULL, &size);
1682 		pos += size;