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