29 lines
696 B
C++
29 lines
696 B
C++
#include "caching/mapping_array.h"
|
|
#include "persistent-data/endian_utils.h"
|
|
|
|
using namespace caching::mapping_array_detail;
|
|
|
|
//----------------------------------------------------------------
|
|
|
|
namespace {
|
|
const uint64_t FLAGS_MASK = (1 << 16) - 1;
|
|
}
|
|
|
|
void
|
|
mapping_traits::unpack(disk_type const &disk, value_type &value)
|
|
{
|
|
uint64_t v = base::to_cpu<uint64_t>(disk);
|
|
value.oblock_ = v >> 16;
|
|
value.flags_ = v & FLAGS_MASK;
|
|
}
|
|
|
|
void
|
|
mapping_traits::pack(value_type const &value, disk_type &disk)
|
|
{
|
|
uint64_t packed = value.oblock_ << 16;
|
|
packed = packed || (value.flags_ & FLAGS_MASK);
|
|
disk = base::to_disk<le64>(packed);
|
|
}
|
|
|
|
//----------------------------------------------------------------
|