thin-provisioning-tools/persistent-data/data-structures/simple_traits.h
2019-03-29 12:56:31 +00:00

42 lines
1.1 KiB
C++

#ifndef PERSISTENT_DATA_DATA_STRUCTURES_SIMPLE_TRAITS_H
#define PERSISTENT_DATA_DATA_STRUCTURES_SIMPLE_TRAITS_H
#include "base/endian_utils.h"
#include "persistent-data/data-structures/btree.h"
//----------------------------------------------------------------
namespace persistent_data {
struct uint64_traits {
typedef base::le64 disk_type;
typedef uint64_t value_type;
typedef no_op_ref_counter<uint64_t> ref_counter;
static void unpack(disk_type const &disk, value_type &value) {
value = base::to_cpu<uint64_t>(disk);
}
static void pack(value_type const &value, disk_type &disk) {
disk = base::to_disk<base::le64>(value);
}
};
struct uint32_traits {
typedef base::le32 disk_type;
typedef uint32_t value_type;
typedef no_op_ref_counter<uint32_t> ref_counter;
static void unpack(disk_type const &disk, value_type &value) {
value = base::to_cpu<uint32_t>(disk);
}
static void pack(value_type const &value, disk_type &disk) {
disk = base::to_disk<base::le32>(value);
}
};
}
//----------------------------------------------------------------
#endif