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https://github.com/facebook/rocksdb.git
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27 lines
838 B
C
27 lines
838 B
C
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// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#pragma once
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// 128-bit hash gets it own header so that more popular hash.h doesn't
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// depend on math128.h
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#include "rocksdb/slice.h"
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#include "util/math128.h"
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namespace ROCKSDB_NAMESPACE {
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// Stable/persistent 128-bit hash for non-cryptographic applications.
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Unsigned128 Hash128(const char* data, size_t n, uint64_t seed);
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// Specific optimization without seed (same as seed = 0)
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Unsigned128 Hash128(const char* data, size_t n);
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inline Unsigned128 GetSliceHash128(const Slice& key) {
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return Hash128(key.data(), key.size());
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}
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} // namespace ROCKSDB_NAMESPACE
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