// _SetTo
status_t
BPartition::_SetTo(BDiskDevice* device, BPartition* parent,
user_partition_data* data)
{
_Unset();
if (!device || !data)
return B_BAD_VALUE;
fPartitionData = data;
fDevice = device;
fParent = parent;
fPartitionData->user_data = this;
// create and init children
status_t error = B_OK;
for (int32 i = 0; error == B_OK && i < fPartitionData->child_count; i++) {
BPartition* child = new(nothrow) BPartition;
if (child) {
error = child->_SetTo(fDevice, this, fPartitionData->children[i]);
if (error != B_OK)
delete child;
} else
error = B_NO_MEMORY;
}
// cleanup on error
if (error != B_OK)
_Unset();
return error;
}
// _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;
}
