57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
// Copyright 2025-present the zvec project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <cstdint>
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namespace zvec {
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namespace core {
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enum VecsBitMapIndex {
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BITMAP_INDEX_KEY = 0,
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BITMAP_INDEX_DENSE = 1,
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BITMAP_INDEX_SPARSE = 2,
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BITMAP_INDEX_TAGLIST = 4
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};
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#pragma pack(4)
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struct VecsHeader {
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uint64_t num_vecs;
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uint16_t meta_size_v1;
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uint16_t version;
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uint32_t meta_size;
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uint64_t bitmap; // set for data section
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uint64_t key_offset; // offset for key
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uint64_t key_size; // size for key
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uint64_t dense_offset; // offset for dense
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uint64_t dense_size; // size for dense
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uint64_t sparse_offset; // offset for sparse
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uint64_t sparse_size; // size for sparse
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uint64_t partition_offset; // offset for partition
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uint64_t partition_size; // size for partition
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uint64_t taglist_offset; // offset for taglist
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uint64_t taglist_size; // size for taglist
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uint8_t *meta_buf() {
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return reinterpret_cast<uint8_t *>(this + 1);
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}
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const uint8_t *meta_buf() const {
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return reinterpret_cast<const uint8_t *>(this + 1);
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}
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};
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#pragma pack()
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} // namespace core
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} // namespace zvec
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