C++ (Cpp) BPartition::_Update Examples

Example #1

File: Partition.cpp Project: mmanley/Antares

// _Update
status_t
BPartition::_Update(user_partition_data* data, bool* updated)
{
	user_partition_data* oldData = fPartitionData;
	fPartitionData = data;
	// check for changes
	if (data->offset != oldData->offset
		|| data->size != oldData->size
		|| data->block_size != oldData->block_size
		|| data->status != oldData->status
		|| data->flags != oldData->flags
		|| data->volume != oldData->volume
		|| data->disk_system != oldData->disk_system	// not needed
		|| compare_string(data->name, oldData->name)
		|| compare_string(data->content_name, oldData->content_name)
		|| compare_string(data->type, oldData->type)
		|| compare_string(data->content_type, oldData->content_type)
		|| compare_string(data->parameters, oldData->parameters)
		|| compare_string(data->content_parameters,
						  oldData->content_parameters)) {
		*updated = true;
	}

	// add new children and update existing ones
	status_t error = B_OK;
	for (int32 i = 0; i < data->child_count; i++) {
		user_partition_data* childData = data->children[i];
		BPartition* child = (BPartition*)childData->user_data;
		if (child) {
			// old partition
			error = child->_Update(childData, updated);
			if (error != B_OK)
				return error;
		} else {
			// new partition
			*updated = true;
			child = new(nothrow) BPartition;
			if (!child)
				return B_NO_MEMORY;

			error = child->_SetTo(fDevice, this, childData);
			if (error != B_OK) {
				delete child;
				return error;
			}

			childData->user_data = child;
		}
	}
	return error;
}