thin-provisioning-tools/thin-provisioning/metadata_disk_structures.cc

94 lines
3.5 KiB
C++

// Copyright (C) 2011 Red Hat, Inc. All rights reserved.
//
// This file is part of the thin-provisioning-tools source.
//
// thin-provisioning-tools is free software: you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// thin-provisioning-tools is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with thin-provisioning-tools. If not, see
// <http://www.gnu.org/licenses/>.
#include "thin-provisioning/metadata_disk_structures.h"
#include <string.h>
using namespace thin_provisioning;
//----------------------------------------------------------------
void
superblock_traits::unpack(superblock_disk const &disk, superblock &value)
{
value.csum_ = to_cpu<uint32_t>(disk.csum_);
value.flags_ = to_cpu<uint32_t>(disk.flags_);
value.blocknr_ = to_cpu<uint64_t>(disk.blocknr_);
::memcpy(value.uuid_, disk.uuid_, sizeof(value.uuid_));
value.magic_ = to_cpu<uint64_t>(disk.magic_);
value.version_ = to_cpu<uint32_t>(disk.version_);
value.time_ = to_cpu<uint32_t>(disk.time_);
value.trans_id_ = to_cpu<uint64_t>(disk.trans_id_);
value.metadata_snap_ = to_cpu<uint64_t>(disk.metadata_snap_);
::memcpy(value.data_space_map_root_,
disk.data_space_map_root_,
sizeof(value.data_space_map_root_));
::memcpy(value.metadata_space_map_root_,
disk.metadata_space_map_root_,
sizeof(value.metadata_space_map_root_));
value.data_mapping_root_ = to_cpu<uint64_t>(disk.data_mapping_root_);
value.device_details_root_ = to_cpu<uint64_t>(disk.device_details_root_);
value.data_block_size_ = to_cpu<uint32_t>(disk.data_block_size_);
value.metadata_block_size_ = to_cpu<uint32_t>(disk.metadata_block_size_);
value.metadata_nr_blocks_ = to_cpu<uint64_t>(disk.metadata_nr_blocks_);
value.compat_flags_ = to_cpu<uint32_t>(disk.compat_flags_);
value.incompat_flags_ = to_cpu<uint32_t>(disk.incompat_flags_);
}
void
superblock_traits::pack(superblock const &value, superblock_disk &disk)
{
disk.csum_ = to_disk<le32>(value.csum_);
disk.flags_ = to_disk<le32>(value.flags_);
disk.blocknr_ = to_disk<le64>(value.blocknr_);
::memcpy(disk.uuid_, value.uuid_, sizeof(disk.uuid_));
disk.magic_ = to_disk<le64>(value.magic_);
disk.version_ = to_disk<le32>(value.version_);
disk.time_ = to_disk<le32>(value.time_);
disk.trans_id_ = to_disk<le64>(value.trans_id_);
disk.metadata_snap_ = to_disk<le64>(value.metadata_snap_);
::memcpy(disk.data_space_map_root_,
value.data_space_map_root_,
sizeof(disk.data_space_map_root_));
::memcpy(disk.metadata_space_map_root_,
value.metadata_space_map_root_,
sizeof(disk.metadata_space_map_root_));
disk.data_mapping_root_ = to_disk<le64>(value.data_mapping_root_);
disk.device_details_root_ = to_disk<le64>(value.device_details_root_);
disk.data_block_size_ = to_disk<le32>(value.data_block_size_);
disk.metadata_block_size_ = to_disk<le32>(value.metadata_block_size_);
disk.metadata_nr_blocks_ = to_disk<le64>(value.metadata_nr_blocks_);
disk.compat_flags_ = to_disk<le32>(value.compat_flags_);
disk.incompat_flags_ = to_disk<le32>(value.incompat_flags_);
}
//----------------------------------------------------------------