void
LogicalPartition::GetPartitionDescriptor(partition_descriptor* descriptor,
	bool inner) const
{
	PrimaryPartition* primary = GetPrimaryPartition();
	if (inner) {
		descriptor->start = (PartitionTableOffset() - primary->Offset())
			/ BlockSize();
		descriptor->type = primary->Type();
	} else {
		descriptor->start = (Offset() - PartitionTableOffset()) / BlockSize();
		descriptor->type = Type();
	}

	descriptor->size = Size() / BlockSize();
	descriptor->active = 0x00;
	descriptor->begin.Unset();
	descriptor->end.Unset();
}
Example #2
0
// pm_scan_partition
static status_t
pm_scan_partition(int fd, partition_data* partition, void* cookie)
{
	// check parameters
	if (fd < 0 || !partition || !cookie)
		return B_ERROR;

	TRACE(("intel: pm_scan_partition(%d, %ld: %lld, %lld, %ld)\n", fd,
		   partition->id, partition->offset, partition->size,
		   partition->block_size));

	PartitionMapCookie* map = (PartitionMapCookie*)cookie;
	// fill in the partition_data structure
	partition->status = B_PARTITION_VALID;
	partition->flags |= B_PARTITION_PARTITIONING_SYSTEM;
	partition->content_size = partition->size;
	// (no content_name and content_parameters)
	// (content_type is set by the system)

	partition->content_cookie = map;
	// children
	status_t error = B_OK;
	int32 index = 0;
	for (int32 i = 0; i < 4; i++) {
		PrimaryPartition* primary = map->PrimaryPartitionAt(i);
		if (!primary->IsEmpty()) {
			partition_data* child = create_child_partition(partition->id,
				index, partition->offset + primary->Offset(), primary->Size(),
				-1);
			index++;
			if (!child) {
				// something went wrong
				error = B_ERROR;
				break;
			}

			child->block_size = partition->block_size;

			// (no name)
			char type[B_FILE_NAME_LENGTH];
			primary->GetTypeString(type);
			child->type = strdup(type);
			// parameters
			char buffer[128];
			sprintf(buffer, "type = %u ; active = %d", primary->Type(),
				primary->Active());
			child->parameters = strdup(buffer);
			child->cookie = primary;
			// check for allocation problems
			if (!child->type || !child->parameters) {
				error = B_NO_MEMORY;
				break;
			}
		}
	}

	// keep map on success or cleanup on error
	if (error == B_OK) {
		atomic_add(&map->ref_count, 1);
	} else {
		partition->content_cookie = NULL;
		for (int32 i = 0; i < partition->child_count; i++) {
			if (partition_data* child = get_child_partition(partition->id, i))
				child->cookie = NULL;
		}
	}

	return error;
}