mirror of
https://github.com/VectorCamp/vectorscan.git
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e271781d95
This commit makes mmbit_size() and fatbit_size compile-time only, and adds a resource limit for very large multibits.
76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
/*
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* Copyright (c) 2015-2016, Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/** \file
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* \brief Multibit: build code (for sparse iterators)
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*/
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#ifndef MULTIBIT_BUILD_H
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#define MULTIBIT_BUILD_H
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#include "multibit_internal.h"
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#include "hash.h"
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#include <vector>
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inline
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bool operator==(const mmbit_sparse_iter &a, const mmbit_sparse_iter &b) {
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return a.mask == b.mask && a.val == b.val;
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}
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inline
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size_t hash_value(const mmbit_sparse_iter &iter) {
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return ue2::hash_all(iter.mask, iter.val);
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}
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namespace ue2 {
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/**
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* \brief Return the size in bytes of a multibit that can store the given
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* number of bits.
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*
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* This will throw a resource limit assertion if the requested mmbit is too
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* large.
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*/
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u32 mmbit_size(u32 total_bits);
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/** \brief Construct a sparse iterator over the values in \a bits for a
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* multibit of size \a total_bits. */
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void mmbBuildSparseIterator(std::vector<mmbit_sparse_iter> &out,
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const std::vector<u32> &bits, u32 total_bits);
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struct scatter_plan_raw;
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void mmbBuildInitRangePlan(u32 total_bits, u32 begin, u32 end,
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scatter_plan_raw *out);
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void mmbBuildClearPlan(u32 total_bits, scatter_plan_raw *out);
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} // namespace ue2
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#endif // MULTIBIT_BUILD_H
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